CN103835973A - Driving circuit and fan - Google Patents
Driving circuit and fan Download PDFInfo
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- CN103835973A CN103835973A CN201210472078.4A CN201210472078A CN103835973A CN 103835973 A CN103835973 A CN 103835973A CN 201210472078 A CN201210472078 A CN 201210472078A CN 103835973 A CN103835973 A CN 103835973A
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Abstract
The invention belongs to the field of fans, and particularly relates to a driving circuit and a fan. The driving circuit is composed of independent components and a chip. The rotation speed of the fan is controlled in real time through a negative temperature coefficient thermo-sensitive resistor, and the rotation speed of the fan is increased or decreased along with rising and falling of the environmental temperature. When the environmental temperature drops from a high point to the point lower than the temperature for starting the fan, the fan is made to work for a certain time through an energy storage capacitor so as to further lower the temperature, so that the situations that due to the fact that the temperature for starting the fan rises and drops in a range, the fan is turned on and turned off suddenly and accordingly the fan is damaged are avoided. In addition, by touching a control circuit, a user can control the fan to work in real time through a switch button according to needs. Thus, noise is effectively lowered, the power utilization rate is increased and the service life of the fan is prolonged.
Description
Technical field
The invention belongs to fan art, relate in particular to a kind of drive circuit and fan.
Background technique
At present, in routine work and daily life, conventional fan dispels the heat to reduce summer heat.
Along with the development of electronic technology, various electronic products have been deep into every field; Because electronic device can affect because ambient temperature is too high electrical quality and the working life of electronic device, be head it off, conventionally adopt in electronic product external environment condition or the inner dress of electronic product fan and dispel the heat with forced cooling.
Traditional fan is the fan of single fixed rotating speed, although the circuit of this fan is simple, has following shortcoming:
Still can secure heat dissipation under maximum power dissipation or maximum temperature working state for guarantee system, blower fan need to maintain high-speed state; Single high-revolving fan has brought larger noise, and long-term single high rotary speed working mode has also reduced the operating life of fan and wasted more power etc.
Summary of the invention
The object of the present invention is to provide a kind of drive circuit, bring the problem of larger noise and waste power to solve working long hours of single rotating speed fan.
The present invention is achieved in that a kind of drive circuit, and described drive circuit is connected with blower fan, and described drive circuit comprises:
Be connected with described blower fan, obtain the blower fan drive circuit of ambient temperature and driving blower fan;
Be connected with described blower fan drive circuit, according to the intermittent control circuit of blower fan drive circuit described in described ambient temperature control.
Further, described drive circuit also comprises:
Be connected with described intermittent control circuit, according to the touch control circuit 30 of intermittent control circuit described in the key information control getting.
Further, described blower fan drive circuit comprises:
Power supply VCC, negative tempperature coefficient thermistor NTC1, divider resistance R6, divider resistance R7, divider resistance R8, divider resistance R9, NPN type triode Q1, positive-negative-positive triode Q2 and the second comparator;
Described negative tempperature coefficient thermistor NTC1 is connected between described power supply VCC and the first end of described divider resistance R6, intermittent control circuit described in the first termination of described divider resistance R6, described divider resistance R7 is connected between the second end and ground of described divider resistance R6, the base stage of NPN type triode Q1 described in the second termination of described divider resistance R6, described divider resistance R8 is connected between described power supply VCC and the collector electrode of described NPN type triode Q1, the first end of described divider resistance R9 and the second end connect respectively the emitter of described NPN type triode Q1 and the output terminal of described the second comparator, intermittent control circuit described in the input termination of described the second comparator, the base stage of described positive-negative-positive triode Q2 connects the collector electrode of described NPN type triode Q1, the emitter of described positive-negative-positive triode Q2 meets described power supply VCC, the collector electrode of the described positive-negative-positive triode Q2 machine of giving a dinner for a visitor from afar.
Further, described the second comparator adopts comparable chip U2, the output pin VOUT2 of described comparable chip U2 connects the second end of described divider resistance R9, anodal input pin VIN2+ and the negative pole input pin VIN2-of described comparable chip U2 connect respectively described intermittent control circuit, the power pins VCC of described comparable chip U2 meets power supply VCC, the ground pin GND ground connection of described comparable chip U2.
Further, described intermittent control circuit comprises:
Divider resistance R4, diverter R5, the 3rd comparator, diode D2, storage capacitor C2 and voltage stabilizer;
Described divider resistance R4 is connected between described power supply VCC and the input end of described the 3rd comparator, the output terminal of described voltage stabilizer and input end connect respectively input end and the ground of described the 3rd comparator, the output terminal of described voltage stabilizer and control end meet respectively the anodal input pin VIN2+ of described comparable chip U2, described diverter R5 is connected between described power supply VCC and the output terminal of described the 3rd comparator, the anode of described diode D2 and negative electrode meet respectively the output terminal of described the 3rd comparator and the negative pole input pin VIN2-of described comparable chip U2, described storage capacitor C2 is connected between the negative electrode and ground of described diode D2, the negative electrode of described diode D2 connects described touch control circuit 30.
Further, described the 3rd comparator adopts comparable chip U3, the output pin VOUT3 of described comparable chip U3 connects the anode of described diode D2, anodal input pin VIN3+ and the negative pole input pin VIN3-of described comparable chip U3 connect respectively the first end of described divider resistance R6 and the output terminal of described voltage stabilizer, the power pins VCC of described comparable chip U3 meets power supply VCC, the ground pin GND ground connection of described comparable chip U3.
Further, described voltage stabilizer adopts voltage stabilizing chip U4, the input pin VIN4 ground connection of described voltage stabilizing chip U4, and the output pin VOUT4 of described voltage stabilizing chip U4 and control pin VC4 meet respectively the negative pole input pin VIN3-of described comparable chip U3.
Further, described touch control circuit 30 comprises:
Two D flip chip U1, divider resistance R1, divider resistance R2, divider resistance R3, key switch K1, storage capacitor C1 and diode D1;
The first termination power VCC of described divider resistance R1, described key switch K1 is connected between the second end of described divider resistance R1 and the first end of described divider resistance R3, the second end ground connection of described divider resistance R3, the clock pin CLOCK1 of described couple of D flip chip U1 connects the first end of described divider resistance R3, described divider resistance R2 is connected between the output pin Q1 and reset pin RESET1 of described couple of D flip chip U1, described storage capacitor C1 is connected between the reset pin RESET1 and ground of described couple of D flip chip U1, described couple of D flip chip U1 arranges pin SET1, power pins VSS, reset pin RESET2 and respectively ground connection of pin SET2 is set, input pin D1 and the power pins VDD of described couple of D flip chip U1 meet respectively power supply VCC, the clock pin CLOCK2 of described couple of D flip chip U1 meets the output pin Q1 of described couple of D flip chip U1, the output pin of described couple of D flip chip U1
meet input pin D2, the anode of described diode D1 and negative electrode connect respectively the output pin Q2 of described couple of D flip chip U1 and the negative electrode of described diode D2.
Another object of the present invention is to provide a kind of fan, described fan comprises blower fan, and described fan also comprises above-mentioned drive circuit.
In the present invention, this drive circuit adopts free-standing components and parts and chip to form, control in real time the rotating speed of blower fan by negative tempperature coefficient thermistor, along with ambient temperature increases or reduces, the rotating speed of blower fan also speeds or slows down, and, when ambient temperature is just reduced to when starting the temperature of blower fan work from high temperature, continue to allow blower fan work certain hour to reduce further temperature by storage capacitor, in order to avoid appear at while beating in the temperature top/bottom latitude that starts blower fan work, cause blower fan suddenly to open and neglect the situation of closing, damage blower fan; In addition, by touch control circuit, user can control blower fan work by switch key as required in real time; Thereby, effectively reduce noise, improve power utilization, extend the working life of blower fan.
Brief description of the drawings
Fig. 1 is the structural drawing of the drive circuit that provides of the embodiment of the present invention;
Fig. 2 is the circuit diagram of the drive circuit that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the structure of the drive circuit that the embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
Drive circuit, described drive circuit is connected with blower fan, and described drive circuit comprises:
Be connected with described blower fan, obtain the blower fan drive circuit 10 of ambient temperature and driving blower fan;
Be connected with described blower fan drive circuit 10, according to the intermittent control circuit 20 of blower fan drive circuit 10 described in described ambient temperature control.
As one embodiment of the invention, described drive circuit can also comprise:
Be connected with described intermittent control circuit 20, according to the touch control circuit 30 of intermittent control circuit 20 described in the key information control getting.
Fig. 2 shows the circuit of the drive circuit that the embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
As one embodiment of the invention, described blower fan drive circuit 10 can comprise:
Power supply VCC, negative tempperature coefficient thermistor NTC1, divider resistance R6, divider resistance R7, divider resistance R8, divider resistance R9, NPN type triode Q1, positive-negative-positive triode Q2 and the second comparator 101;
Described negative tempperature coefficient thermistor NTC1 is connected between described power supply VCC and the first end of described divider resistance R6, intermittent control circuit 20 described in the first termination of described divider resistance R6, described divider resistance R7 is connected between the second end and ground of described divider resistance R6, the base stage of NPN type triode Q1 described in the second termination of described divider resistance R6, described divider resistance R8 is connected between described power supply VCC and the collector electrode of described NPN type triode Q1, the first end of described divider resistance R9 and the second end connect respectively the emitter of described NPN type triode Q1 and the output terminal of described the second comparator 101, intermittent control circuit 20 described in the input termination of described the second comparator 101, the base stage of described positive-negative-positive triode Q2 connects the collector electrode of described NPN type triode Q1, the emitter of described positive-negative-positive triode Q2 meets described power supply VCC, the collector electrode of the described positive-negative-positive triode Q2 machine of giving a dinner for a visitor from afar.
As one embodiment of the invention, described the second comparator 101 can adopt comparable chip U2, the output pin VOUT2 of described comparable chip U2 connects the second end of described divider resistance R9, anodal input pin VIN2+ and the negative pole input pin VIN2-of described comparable chip U2 connect respectively described intermittent control circuit 20, the power pins VCC of described comparable chip U3 meets power supply VCC, the ground pin GND ground connection of described comparable chip U3.
As one embodiment of the invention, described intermittent control circuit 20 can comprise:
Divider resistance R4, diverter R5, the 3rd comparator 201, diode D2, storage capacitor C2 and voltage stabilizer 202;
Described divider resistance R4 is connected between described power supply VCC and the input end of described the 3rd comparator 201, the output terminal of described voltage stabilizer 202 and input end connect respectively input end and the ground of described the 3rd comparator 201, the output terminal of described voltage stabilizer 202 and control end meet respectively the anodal input pin VIN2+ of described comparable chip U2, described diverter R5 is connected between described power supply VCC and the output terminal of described the 3rd comparator 201, the anode of described diode D2 and negative electrode meet respectively the output terminal of described the 3rd comparator 201 and the negative pole input pin VIN2-of described comparable chip U2, described storage capacitor C2 is connected between the negative electrode and ground of described diode D2, the negative electrode of described diode D2 connects described touch control circuit 30.
As one embodiment of the invention, described the 3rd comparator 201 can adopt comparable chip U3, the output pin VOUT3 of described comparable chip U3 connects the anode of described diode D2, the anodal input pin VIN3+ of described comparable chip U3 and negative pole input pin VIN3-connect respectively the first end of described divider resistance R6 and the output terminal of described voltage stabilizer 202, the power pins VCC of described comparable chip U3 meets power supply VCC, the ground pin GND ground connection of described comparable chip U3.
As the present invention's one preferred embodiment, described comparable chip U2 and comparable chip U3 adopt identical comparable chip.
As one embodiment of the invention, described voltage stabilizer 202 can adopt voltage stabilizing chip U4, the input pin VIN4 ground connection of described voltage stabilizing chip U4, the output pin VOUT4 of described voltage stabilizing chip U4 and control pin VC4 meet respectively the negative pole input pin VIN3-of described comparable chip U3.
As one embodiment of the invention, described touch control circuit 30 can comprise:
Two D flip chip U1, divider resistance R1, divider resistance R2, divider resistance R3, key switch K1, storage capacitor C1 and diode D1;
The first termination power VCC of described divider resistance R1, described key switch K1 is connected between the second end of described divider resistance R1 and the first end of described divider resistance R3, the second end ground connection of described divider resistance R3, the clock pin CLOCK1 of described couple of D flip chip U1 connects the first end of described divider resistance R3, described divider resistance R2 is connected between the output pin Q1 and reset pin RESET1 of described couple of D flip chip U1, described storage capacitor C1 is connected between the reset pin RESET1 and ground of described couple of D flip chip U1, described couple of D flip chip U1 arranges pin SET1, power pins VSS, reset pin RESET2 and respectively ground connection of pin SET2 is set, input pin D1 and the power pins VDD of described couple of D flip chip U1 meet respectively power supply VCC, the clock pin CLOCK2 of described couple of D flip chip U1 meets the output pin Q1 of described couple of D flip chip U1, the output pin of described couple of D flip chip U1
meet input pin D2, the anode of described diode D1 and negative electrode connect respectively the output pin Q2 of described couple of D flip chip U1 and the negative electrode of described diode D2.
As depicted in figs. 1 and 2, the embodiment of the present invention also provides a kind of fan, and described fan comprises blower fan, and described fan can also comprise above-mentioned drive circuit.
Adopt two D flip chip IC4013, comparable chip U2 to adopt the second comparable chip LM393, comparable chip U3 to adopt the 3rd comparable chip LM393 and voltage stabilizing chip U4 to adopt voltage stabilizing chip IC 431 as example taking two D flip chip U1 below, the working principle of drive circuit be described:
The burning voltage of 2.5V is provided to the electrode input end VIN2+ of the second comparable chip LM393 and the negative input VIN3-of the 3rd comparable chip LM393 by voltage stabilizing chip IC 431, obtain ambient temperature by described negative tempperature coefficient thermistor NTC1, when ambient temperature is when opening the temperature threshold of fan, the resistance of described negative tempperature coefficient thermistor NTC1 is large resistance, thereby, voltage after described divider resistance R6 and divider resistance R7 series connection is lower than 2.5V, thereby, voltage after the described divider resistance R6 that the anodal input pin VIN3+ of the 3rd comparable chip LM393 gets and divider resistance R7 series connection is lower than 2.5V, the output pin VOUT3 of the 3rd comparable chip LM393 is in low level, thereby, the voltage that the output pin VOUT3 of the 3rd comparable chip LM393 exports the negative pole input pin VIN2-of the second comparable chip LM393 after by diode D2 to is the voltage lower than 2.5V, thereby, the voltage of the output pin VOUT2 of the second comparable chip LM393 is high voltage, thereby, the voltage that the output pin VOUT2 of the second comparable chip LM393 is connected to the emitter of NPN type triode Q1 by divider resistance R9 is high voltage, the voltage at the divider resistance R7 two ends that the base stage of NPN type triode Q1 gets is low voltage, thereby, not conducting of NPN type triode Q1, the voltage that the base stage of the described positive-negative-positive triode Q2 being connected with the collector electrode of NPN type triode Q1 gets is high voltage, simultaneously, the very high voltage of transmitting of described positive-negative-positive triode Q2, not conducting of described positive-negative-positive triode Q2, do not work with the blower fan that the collector electrode of described positive-negative-positive triode Q2 is connected, do not rotate.
In like manner, if ambient temperature is higher than the temperature of the temperature threshold of unlatching fan, described negative tempperature coefficient thermistor NTC1 resistance step-down is low resistance, thereby, voltage after the divider resistance R6 that the anodal input pin VIN3+ of the 3rd comparable chip LM393 gets and divider resistance R7 series connection is high voltage, thereby, the output pin VOUT3 output HIGH voltage of the 3rd comparable chip LM393, thereby, the output pin VOUT2 output LOW voltage of the second comparable chip LM393, the voltage at the divider resistance R7 two ends that the base stage of NPN type triode Q1 gets is high voltage, NPN type triode Q1 conducting, thereby, the base stage of positive-negative-positive triode Q2 is low voltage, positive-negative-positive triode Q2 conducting, blower fan rotates, in running order, along with ambient temperature raises, rotation speed of fan speeds, and along with ambient temperature reduces, rotation speed of fan slows down.
When ambient temperature is again when opening the temperature threshold of fan, voltage after the divider resistance R6 that the anodal input pin VIN3+ of the 3rd comparable chip LM393 gets and divider resistance R7 series connection is low voltage, thereby, the output pin VOUT3 output LOW voltage of the 3rd comparable chip LM393, due to storage capacitor C2 storing electrical energy, the negative input VIN2-of diode D2 and the second comparable chip LM393 is still in high voltage, NPN type triode Q1 and positive-negative-positive triode Q2 are still on state, blower fan continues maintenance work, the voltage of negative input VIN2-that discharges into the second comparable chip LM393 by the negative input VIN2-of the second comparable chip LM393 when the electric energy of storage capacitor C2 is during lower than 2.5V, NPN type triode Q1 and all not conductings of positive-negative-positive triode Q2, blower fan quits work.
Two D flip chip IC4013 arrange pin SET1 and pin SET2 ground connection are set, after reset pin RESET1 by two D flip chip IC4013 and reset pin RESET2 reset, the output pin Q1 of two D flip chip IC4013 is that low level, clock pin CLOCK2 and output pin Q2 are low level, the output pin of two D flip chip IC4013
input pin D1 and input pin D2 are high level, when key switch K1 is for the first time after closure, the clock pin CLOCK1 of two D flip chip IC4013 receives the rising edge that is uprised level by low level, the output pin Q1 of two D flip chip IC4013 becomes high level, thereby, the clock pin CLOCK2 of two D flip chip IC4013 receives the rising edge that is uprised level by low level, and the output pin Q2 of two D flip chip IC4013 becomes high level and output pin
d2 becomes low level with input pin, the output pin Q2 of two D flip chip IC4013 is connected with the negative pole input pin VIN2-of the second comparable chip LM393, thereby, the output pin VOUT2 of the second comparable chip LM393 becomes low level, NPN type triode Q1 and the equal conducting of positive-negative-positive triode Q2, blower fan rotates; Simultaneously, the output pin Q1 of two D flip chip IC4013 charges to described storage capacitor C1 by divider resistance R2, in the time that the voltage of described storage capacitor C1 reaches the resetting voltage of two D flip chip IC4013, two D flip chip IC4013 reset by the reset pin RESET1 of two D flip chip IC4013, and the output pin Q1 of two D flip chip IC4013 and clock pin CLOCK2 become low level; When key switch K1 is for the second time after closure, the clock pin CLOCK1 of two D flip chip IC4013 receives the rising edge that is uprised level by low level, the output pin Q1 of two D flip chip IC4013 becomes high level, thereby, the clock pin CLOCK2 of two D flip chip IC4013 receives the rising edge that is uprised level by low level, and the output pin Q2 of two D flip chip IC4013 becomes low level and output pin
d2 becomes high level with input pin, the output pin Q2 of two D flip chip IC4013 is connected with the negative pole input pin VIN2-of the second comparable chip LM393, thereby, the output pin VOUT2 of the second comparable chip LM393 becomes high level, NPN type triode Q1 and all not conductings of positive-negative-positive triode Q2, blower fan stops operating; Simultaneously, the output pin Q1 of two D flip chip IC4013 charges to described storage capacitor C1 by divider resistance R2, in the time that the voltage of described storage capacitor C1 reaches the resetting voltage of two D flip chip IC4013, two D flip chip IC4013 reset by the reset pin RESET1 of two D flip chip IC4013, and the output pin Q1 of two D flip chip IC4013 and clock pin CLOCK2 become low level.
The described function by touch circuit can replace realization by the control circuit that adopts control chip composition, while pressing switch key for the first time, control chip is to the negative pole input pin VIN2-input high level of comparable chip U2, while pressing switch key for the second time, control chip, to the negative pole input pin VIN2-input low level of comparable chip U2, is realized whether blower fan is worked and controlled.
In embodiments of the present invention, this drive circuit adopts free-standing components and parts and chip to form, control in real time the rotating speed of blower fan by negative tempperature coefficient thermistor, along with ambient temperature increases or reduces, the rotating speed of blower fan also speeds or slows down, and, when ambient temperature is just reduced to when starting the temperature of blower fan work from high temperature, continue to allow blower fan work certain hour to reduce further temperature by storage capacitor, in order to avoid appear at while beating in the temperature top/bottom latitude that starts blower fan work, cause blower fan suddenly to open and neglect the situation of closing, damage blower fan; In addition, by touch control circuit, user can control blower fan work by switch key as required in real time; Thereby, effectively reduce noise, improve power utilization, extend the working life of blower fan.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a drive circuit, described drive circuit is connected with blower fan, it is characterized in that, and described drive circuit comprises:
Be connected with described blower fan, obtain the blower fan drive circuit of ambient temperature and driving blower fan;
Be connected with described blower fan drive circuit, according to the intermittent control circuit of blower fan drive circuit described in described ambient temperature control.
2. drive circuit as claimed in claim 1, is characterized in that, described drive circuit also comprises:
Be connected with described intermittent control circuit, according to the touch control circuit of intermittent control circuit described in the key information control getting.
3. drive circuit as claimed in claim 2, is characterized in that, described blower fan drive circuit comprises:
Power supply VCC, negative tempperature coefficient thermistor NTC1, divider resistance R6, divider resistance R7, divider resistance R8, divider resistance R9, NPN type triode Q1, positive-negative-positive triode Q2 and the second comparator;
Described negative tempperature coefficient thermistor NTC1 is connected between described power supply VCC and the first end of described divider resistance R6, intermittent control circuit described in the first termination of described divider resistance R6, described divider resistance R7 is connected between the second end and ground of described divider resistance R6, the base stage of NPN type triode Q1 described in the second termination of described divider resistance R6, described divider resistance R8 is connected between described power supply VCC and the collector electrode of described NPN type triode Q1, the first end of described divider resistance R9 and the second end connect respectively the emitter of described NPN type triode Q1 and the output terminal of described the second comparator, intermittent control circuit described in the input termination of described the second comparator, the base stage of described positive-negative-positive triode Q2 connects the collector electrode of described NPN type triode Q1, the emitter of described positive-negative-positive triode Q2 meets described power supply VCC, the collector electrode of the described positive-negative-positive triode Q2 machine of giving a dinner for a visitor from afar.
4. drive circuit as claimed in claim 3, it is characterized in that, described the second comparator adopts comparable chip U2, the output pin VOUT2 of described comparable chip U2 connects the second end of described divider resistance R9, anodal input pin VIN2+ and the negative pole input pin VIN2-of described comparable chip U2 connect respectively described intermittent control circuit, the power pins VCC of described comparable chip U2 meets power supply VCC, the ground pin GND ground connection of described comparable chip U2.
5. drive circuit as claimed in claim 4, is characterized in that, described intermittent control circuit comprises:
Divider resistance R4, diverter R5, the 3rd comparator, diode D2, storage capacitor C2 and voltage stabilizer;
Described divider resistance R4 is connected between described power supply VCC and the input end of described the 3rd comparator, the output terminal of described voltage stabilizer and input end connect respectively input end and the ground of described the 3rd comparator, the output terminal of described voltage stabilizer and control end meet respectively the anodal input pin VIN2+ of described comparable chip U2, described diverter R5 is connected between described power supply VCC and the output terminal of described the 3rd comparator, the anode of described diode D2 and negative electrode meet respectively the output terminal of described the 3rd comparator and the negative pole input pin VIN2-of described comparable chip U2, described storage capacitor C2 is connected between the negative electrode and ground of described diode D2, the negative electrode of described diode D2 connects described touch control circuit.
6. drive circuit as claimed in claim 5, it is characterized in that, described the 3rd comparator adopts comparable chip U3, the output pin VOUT3 of described comparable chip U3 connects the anode of described diode D2, anodal input pin VIN3+ and the negative pole input pin VIN3-of described comparable chip U3 connect respectively the first end of described divider resistance R6 and the output terminal of described voltage stabilizer, the power pins VCC of described comparable chip U3 meets power supply VCC, the ground pin GND ground connection of described comparable chip U3.
7. drive circuit as claimed in claim 6, it is characterized in that, described voltage stabilizer adopts voltage stabilizing chip U4, the input pin VIN4 ground connection of described voltage stabilizing chip U4, the output pin VOUT4 of described voltage stabilizing chip U4 and control pin VC4 meet respectively the negative pole input pin VIN3-of described comparable chip U3.
8. drive circuit as claimed in claim 7, is characterized in that, described touch control circuit comprises:
Two D flip chip U1, divider resistance R1, divider resistance R2, divider resistance R3, key switch K1, storage capacitor C1 and diode D1;
The first termination power VCC of described divider resistance R1, described key switch K1 is connected between the second end of described divider resistance R1 and the first end of described divider resistance R3, the second end ground connection of described divider resistance R3, the clock pin CLOCK1 of described couple of D flip chip U1 connects the first end of described divider resistance R3, described divider resistance R2 is connected between the output pin Q1 and reset pin RESET1 of described couple of D flip chip U1, described storage capacitor C1 is connected between the reset pin RESET1 and ground of described couple of D flip chip U1, described couple of D flip chip U1 arranges pin SET1, power pins VSS, reset pin RESET2 and respectively ground connection of pin SET2 is set, input pin D1 and the power pins VDD of described couple of D flip chip U1 meet respectively power supply VCC, the clock pin CLOCK2 of described couple of D flip chip U1 meets the output pin Q1 of described couple of D flip chip U1, the output pin of described couple of D flip chip U1
meet input pin D2, the anode of described diode D1 and negative electrode connect respectively the output pin Q2 of described couple of D flip chip U1 and the negative electrode of described diode D2.
9. a fan, described fan comprises blower fan, it is characterized in that, described fan also comprises that claim 1 is to the drive circuit described in claim 8 any one.
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| CN201210472078.4A CN103835973B (en) | 2012-11-20 | 2012-11-20 | A kind of drive circuit and fan |
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| CN201210472078.4A CN103835973B (en) | 2012-11-20 | 2012-11-20 | A kind of drive circuit and fan |
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| CN103835973B CN103835973B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533817A (en) * | 2014-12-22 | 2015-04-22 | 昆明钢铁控股有限公司 | Operation control method and system for multiple cooling fans |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262170A (en) * | 1999-03-18 | 2000-09-26 | Hitachi Service & Engineering (East) Ltd | Barn air conditioning control system |
| CN1550946A (en) * | 2002-12-11 | 2004-12-01 | 技嘉科技股份有限公司 | Fan control apparatus |
| CN1959580A (en) * | 2005-11-03 | 2007-05-09 | 富准精密工业(深圳)有限公司 | Circuit for controlling speed of fan, and control method |
| US20070248047A1 (en) * | 2006-01-31 | 2007-10-25 | Peter Shorty | Home electrical device control within a wireless mesh network |
| CN201274037Y (en) * | 2008-10-10 | 2009-07-15 | 东莞市东方科技有限公司 | Temperature controller for digital touch screen |
| CN202326331U (en) * | 2011-11-11 | 2012-07-11 | 上海新进芯微电子有限公司 | Fan and automatic temperature control speed-adjusting circuit thereof |
| CN202926686U (en) * | 2012-11-20 | 2013-05-08 | 中国长城计算机深圳股份有限公司 | Drive circuit and fan |
-
2012
- 2012-11-20 CN CN201210472078.4A patent/CN103835973B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262170A (en) * | 1999-03-18 | 2000-09-26 | Hitachi Service & Engineering (East) Ltd | Barn air conditioning control system |
| CN1550946A (en) * | 2002-12-11 | 2004-12-01 | 技嘉科技股份有限公司 | Fan control apparatus |
| CN1959580A (en) * | 2005-11-03 | 2007-05-09 | 富准精密工业(深圳)有限公司 | Circuit for controlling speed of fan, and control method |
| US20070248047A1 (en) * | 2006-01-31 | 2007-10-25 | Peter Shorty | Home electrical device control within a wireless mesh network |
| CN201274037Y (en) * | 2008-10-10 | 2009-07-15 | 东莞市东方科技有限公司 | Temperature controller for digital touch screen |
| CN202326331U (en) * | 2011-11-11 | 2012-07-11 | 上海新进芯微电子有限公司 | Fan and automatic temperature control speed-adjusting circuit thereof |
| CN202926686U (en) * | 2012-11-20 | 2013-05-08 | 中国长城计算机深圳股份有限公司 | Drive circuit and fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533817A (en) * | 2014-12-22 | 2015-04-22 | 昆明钢铁控股有限公司 | Operation control method and system for multiple cooling fans |
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| CN103835973B (en) | 2016-08-17 |
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