CN100395941C - Program-controlled universal charging device and charging method thereof - Google Patents
Program-controlled universal charging device and charging method thereof Download PDFInfo
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- CN100395941C CN100395941C CNB2005100559986A CN200510055998A CN100395941C CN 100395941 C CN100395941 C CN 100395941C CN B2005100559986 A CNB2005100559986 A CN B2005100559986A CN 200510055998 A CN200510055998 A CN 200510055998A CN 100395941 C CN100395941 C CN 100395941C
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Abstract
The present invention relates to a program-controlled universal charge device and a charge method thereof. A charge device comprises a power supply converter which can convert the AC electric power into the DC electric power for output, a plurality of energy storage capacitors which are respectively connected with the power supply converter through a change-over switch, and a control unit which is connected with the power supply converter, the energy storage capacitors and the change-over switches. The control unit controls the power supply converter to adjust the DC electric power output according to different load charge electric power requirements, the time share control of the change-over time of the change-over switches is realized by the control unit, different DC electric power is cut off and is stored in the energy storage capacitors, and different loads can be charged.
Description
Technical field
The present invention relates to a kind of output power that utilizes program-controlled mode modulation power supply unit, the output power of modulation switches by the timesharing of a plurality of diverter switches respectively, in order to the charging of a plurality of storage capacitors, be used for universal charging device that multiple electronic product is charged.
Background technology
Along with the prosperity of information industry, portable electronic product miscellaneous as mobile phone, notebook computer, personal digital assistant and digital camera etc., provides different application such as audio-visual multimedia and data network transmission in the daily life.
Employed in the market portable electronic product all need use exclusive charging converter (adapter) to carry out the charging of electronic product.The charging converter of each class (adapter) all has the charging specification of its different voltages and currents combination, so the user can find that he must use manufacturer can carry out the product charging with the attached charging converter of giving of electronic product (adapter) beginning.This brings many inconvenience to the user, especially goes sightseeing and when being in harmony public affairs, multiple charging converter (adapter) all must carry and go out, and more causes luggage burden and inconvenience.And transducer (adapter) can eliminate along with electronic product, causes becoming useless waste and abandon, and then directly cause the environmental issue of environmental pollution.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of program-controlled universal charging device is provided, can provide multiple electronic product to charge simultaneously, to save the use of multiple charging converter (adapter).The present invention is according to the required power specification of load charging, use program-controlled mode to adjust the output power of power supply unit, and all change the switching of switch at least to use the control of program-controlled mode timesharing, thus, can be sent to storage capacitor by above-mentioned diverter switch respectively by the charging power that different loads is required, charge so that a load or a plurality of similar and different load to be provided.The present invention can upgrade following electronic product charging data at any time, and the user need not buy new transducer (adapter) and charge.
For reaching above-mentioned purpose, the invention provides a kind of program-controlled universal charging device, can use a power supply changeover device that alternating electromotive force can be converted to direct current power output to a load or simultaneously to a plurality of similar and different load chargings; With at least one storage capacitor, above-mentioned storage capacitor is connected in this power supply changeover device by a diverter switch separately, by the switching of above-mentioned diverter switch, captures this direct current power discontinuously, and carries out energy storage; And use a control unit to be connected in this power supply changeover device, above-mentioned storage capacitor and above-mentioned diverter switch, this control unit can be according to the demand of different loads charging power, in order to control this direct current power output of this power supply changeover device modulation, and the switching time of above-mentioned diverter switch is controlled in timesharing, and then the direct current power of modulation is stored in above-mentioned storage capacitor respectively, with to a load or simultaneously a plurality of similar and different loads are charged.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Fig. 1 is a schematic appearance of the present invention;
Fig. 2 A～Fig. 2 B is a circuit diagram of the present invention;
Fig. 3 is the discharge time and the output voltage waveforms schematic diagram of discharge switch;
Fig. 4 is microprocessor output control waveform schematic diagram;
Fig. 5 A arranges schematic diagram for the present invention to three intelligent output control waveforms of unequally loaded;
The intelligent output control waveform of Fig. 5 B during for load change of the present invention arranged schematic diagram;
Fig. 6 is a charging method schematic flow sheet of the present invention.
Symbol description among the figure
1 program-controlled universal charging device, 10 power supply changeover devices
12 front end change-over circuit 122EMI filters
124 rectifier filters, 126 supply voltage generation circuits
C2 filter capacitor 14 rear end change-over circuits
142 converting unit 144PWM controllers
146 feedback networks, 1462 current feedback networks
1464 Voltage Feedback networks, 1466 voltage error amplifiers
1468 current error amplifiers 1469 or door
20 control units, 202 digital analog converters
204 microprocessors, 2042 data transmission port
VF voltage feedback signal IP current feedback signal
Q1 diverter switch Q2 discharge switch
C01, C02, C03, C04, C05 ... the C0n storage capacitor
Sw1, sw2, sw3, sw4, sw5 ... the swa diverter switch
30 display units, 40 input units
Embodiment
Please refer to Fig. 1, be schematic appearance of the present invention.Program-controlled universal charging device 1 of the present invention can charge to multiple electronic installation (laptop computer, individual be assistant, digital camera, mobile phone etc. with oneself) simultaneously.When user's desire uses 1 pair of load of program-controlled universal charging device of the present invention to charge, promptly needing provides the input data or sets referential data by operation input unit 40 earlier, with kind and the charging specification thereof of selecting load, as: laptop computer, individual be the electronic installation of kinds such as assistant, digital camera, mobile phone with oneself, and cooperate to set each power output end V1, V2, V3, charging specification that V4, V5 are correct, use to offer above-mentioned electronic installation.Can be used for increasing newly, removing or revise the data of charge inside specification simultaneously by operation input unit 40, use so that new charge electronic devices can be provided at any time.Moreover the demonstration by display unit 30, can know clearly the work message of program-controlled universal charging device 1 of the present invention.
Please refer to Fig. 2 A～Fig. 2 B, be circuit diagram of the present invention.The present invention uses a control unit 20 to be connected in a power supply changeover device 10 that alternating electromotive force can be converted to direct current power, and this control unit 20 is adjusted this power supply changeover device 10 output DC power according to the demand of different loads charging power with stored program control system.Moreover the present invention uses at least one storage capacitor (C01, C02, C03, C04, C05 ... C0n) switch switch (sw1, sw2, sw3, sw4, sw5 by one separately ... swn) be connected in the output of this power supply changeover device 10.In the above-mentioned explanation, this power supply changeover device 10 can be flyback (flyback), forward type (forward) or push-pull type converter circuit frameworks such as (pushpull).
This control unit 20 is according to the demand of different loads charging power, with the above-mentioned diverter switch (sw1 of stored program control system timesharing ground control, sw2, sw3, sw4, sw5 ... swn) switch, cooperate these power supply changeover device 10 output DC power of adjustment, needed direct current power passes through diverter switch (sw1 discontinuously so that each load is charged, sw2, sw3, sw4, sw5 ... swn) be stored in above-mentioned storage capacitor (C01 respectively, C02, C03, C04, C05 ... C0n), with to being connected in above-mentioned storage capacitor (C01, C02, C03, C04, C05 ... C0n) different loads (not indicating) charges.
Multiple with reference to figure 2A～Fig. 2 B, this control unit 20 is with the direct current power of these power supply changeover device 10 outputs of stored program control system modulation, cooperate program control above-mentioned diverter switch (sw1, sw2, sw3, sw4, sw5 again ... swn), in regular turn that the modulation back loading is required charging direct current power is sent away.The direct current power of power supply changeover device 10 outputs has one period very long natural discharge time when modulation, so when the present invention charges to a plurality of loads simultaneously, can be because control unit 20 control its switch (sw1, sw2, sw3, sw4, sw5 apace ... swn) so that different loads (indicate) is charged, so can not wait for power supply changeover device 10 output DC power very long natural discharge times.Therefore the present invention further includes output and this control unit 20 that a discharge switch Q2 is connected in this power supply changeover device 10, be controlled by this control unit 20, downgrade this direct current power in order to quicken these power supply changeover device 10 linearities, to accelerate the required direct current power of the next load charging of output.
Cooperate Fig. 2 A～Fig. 2 B,, be the dt and output voltage waveforms schematic diagram discharge time of discharge switch Q2 with reference to figure 3.Discharge switch Q2 discharge time dt can be program control by control unit 20, and can calculate and get by following formula:
In the top formula, dv is the difference value (V that High Level DC Voltage is discharged to low dc voltage
01-V
02); C1 is the filtering and the storage capacitor value of power supply changeover device 10 outputs; I is the pulse current of discharge switch Q2, and pulse current I can be obtained by following formula:
In the top formula, the leakage when pulse current I can depend on discharge switch Q2 conducting-source terminal resistance R
DSON, resistance R T and power supply changeover device 10 output voltage V
0Decide.
Multiple with reference to figure 2A～Fig. 2 B, this control unit 20 connects a digital analog converter 202 by a microprocessor 204 and forms, this microprocessor 204 is according to the load charging data that stores in its internal storage, carry out a Charge Management program, in order to the above-mentioned diverter switch sw1 of timesharing ground control, sw2, sw3, sw4, sw5...swn, give this power supply changeover device 10 by this digital analog converter 202 transmission one program-controlled voltage signal CVPRG and a programmable current signal CCPRG simultaneously, as adjusting this direct current power output, to provide the different loads charging required voltage and electric current.
This microprocessor 204 further has a data transmission port 2042, and data transmission port 2042 can be a usb data transmit port.This microprocessor 204 is not by these data transmission port 2042 external source of information (indicating), can obtain and upgrade the load charging data that stores microprocessor 204 internal storages from this data source, this source of information can be computer (PC), notebook computer (NB) or individual assistant's electronic installations such as (PDA) with oneself.Moreover, microprocessor 204 connects an input unit 40, input unit 40 can provide the user to import data or set point to these microprocessor 204 internal storages, be used for increasing newly, removing or revise the data of internal load charging specification, use so that new charge electronic devices can be provided at any time.And display unit 30 is connected in this processor 204, is used for the display data message, and the user can know clearly the operating state of program-controlled universal charging device 1 of the present invention by display unit 30.
Multiple with reference to figure 2A～Fig. 2 B, this power supply changeover device 10 includes a front end change-over circuit 12 and a rear end change-over circuit 14, front end change-over circuit 12 is by an electromagnetic interface filter: 122, a rectifier filter 124, a supply voltage generation circuit 126 and a filter capacitor C2 connect to form, and convert an alternating electromotive force output of to direct current supply electric power.Rear end change-over circuit 14, be connected in this front end converting unit 12, include: a converting unit 142, the one input side connects this front end change-over circuit 12 and and switches switch Q1, according to a PWM controller 144 power controlling switch Q1, supply electric power with this direct current of periodic switching, and export a direct current electric power in outlet side.One feedback network 146 is connected in these converting unit 142 outlet sides, this digital analog converter 202 and this microprocessor 204, utilize a Voltage Feedback network 1464 and a current feedback network 1462, obtain a voltage feedback signal VF and a current feedback signal IF from these converting unit 142 outlet sides, and send it to this microprocessor 204.
Simultaneously, this digital analog converter 202 transmits this program-controlled voltage signal CVPRG and this a programmable current signal CCPRG voltage error amplifier 1466 and the current error amplifier 1468 in the feedback network 146 respectively.Voltage error amplifier 1466 comparison operation voltage feedback signal VF and program-controlled voltage signal CVPRG are in order to the output voltage modulating signal, and current error amplifier 1468 comparison operation current feedback signal IP and programmable current signal CCPRG are in order to the output current modulating signal.After the two is relatively intacter respectively, by one be connected in this voltage error amplifier 1466, this current error amplifier 1468 and this PWM controller 144 one or the door 1469, select this voltage modulation signal or this current modulating signal, control the pulse duration of PWM controller 144 outputs, with the voltage or the magnitude of current of adjustment converting unit 142 output DC power, and then provide a certain voltage charge mode (CV) or a constant-current charge pattern (CC).
Cooperate Fig. 2 A～Fig. 2 B, please refer to Fig. 4, be microprocessor 204 output control waveform schematic diagrames.At this, simultaneously the control waveform and the work schedule thereof of five load chargings are described as follows with the present invention.Before time t0, control waveform s1-s5 control its switch sw1, sw2, sw3, sw4, sw5 open (open), this moment, control unit 20 was adjusted the direct current power Vo that this power supply changeover device 10 is exported with stored program control system, made it to reach the heaviest voltage specification of load in five loads, and its voltage is with V
01Expression.
Direct current power Vo arrives the required voltage Vo of load when time t0
1, the program control at once diverter switch sw1 conducting of microprocessor 204 is with voltage Vo
1, sending storage capacitor c01 to, storage capacitor c01 is charging to the load to be charged that connects.When time t1-t2, microprocessor 204 not conducting of program control diverter switch sw1 at once, control unit 20 is adjusted the direct current power Vo of these power supply changeover device 10 outputs once more with stored program control system, and it output DC power is cut to voltage Vo
2, the then program control once more diverter switch sw2 conducting of microprocessor 204, voltage V02 is sent to next storage capacitor c02, storage capacitor c02 charges to the load next to be charged that connects again, goes down to carry out next load charging according to this in proper order.
When time t9-t10, control unit 20 is got back to voltage Vo with the direct current power Vo of these power supply changeover device 10 outputs of stored program control system modulation
1, the program control once more sw1 conducting of microprocessor 204 is with voltage Vo
1, send storage capacitor c01 once more to treat the charging load charging.
As described above, by the direct current power Vo of control unit 20 with these power supply changeover device 10 outputs of stored program control system modulation, and cooperate and to take turns program control above-mentioned diverter switch sw1, sw2, sw3, sw4, sw5 conducting or end in regular turn, can offer the different loads charging by those storage capacitors respectively and use simultaneously with different charging powers.
When the present invention charged for a plurality of loads, microprocessor 204 can be exported control waveform s1-s5 to arrange best load charging order intelligently.Basically microprocessor 204 can be adjusted the operating time of control waveform, so that suitable electric power output to be provided according to the load needed electric power that charges.And microprocessor 204 can be judged load size to carry out the charging order of control waveform output, and the meeting that normal load is big ranked first cis-position, load next come next cis-position, the rest may be inferred.If microprocessor 204 need provide under the situation of a heavy load, the quantity of load charging can be judged and temporarily reduce to microprocessor 204 automatically, after the charge volume of heavy load reduces by the time, just begins to recover the charging of load.
Please refer to Fig. 5 A, for the present invention arranges schematic diagram to three intelligent output control waveforms of unequally loaded.Wherein load L1 has bigger load capacity, and the operating time of its control waveform is 20ms, and the off-air time is 15ms.The simultaneously less load L2 and the operating time of load L3 control waveform are respectively 10ms and 5ms, and its charging order is arranged at respectively after the load L1, and charges during the off-air time of load L1.
Cooperate Fig. 5 A figure, please refer to Fig. 5 B, the intelligent output control waveform during for load change of the present invention is arranged schematic diagram.When the load of load L1 descended, microprocessor 204 can be according to the minimizing of load and with the off-air time lengthening of control waveform (from 15ms to being lengthened to 60ms), and load L2 and load L3 are constant.At this moment, if there is load L4 to add charging, then microprocessor 204 can add load L4 in the new charging order in automatic judgement.
Cooperate Fig. 2 A～Fig. 2 B,, be charging method schematic flow sheet of the present invention with reference to figure 6.Program-controlled universal charging method of the present invention can be simultaneously to a plurality of different loads chargings, and its charge step includes: at first, microprocessor can be carried out a Charge Management program earlier, obtains the load charging data (s102) of desire charging internally in the memory; Then, according to this load charging data, carry out this Charge Management program, give power supply changeover device 10, make it to provide a voltage source or a current source (s104) by this digital analog converter 202 transmission one program-controlled voltage signal CVPRG or a programmable current signal CCPRG; At last, cooperate the adjustment of voltage source or current source, microprocessor 204 can be carried out this Charge Management program according to this load charging data, controls the charging interval of above-mentioned load to carry out timesharing, in order to above-mentioned load is charged (s106).Control in the charging interval step of those loads in this timesharing, the work period in heavier its charging interval of load is longer, otherwise then shorter.Simultaneously, between the charging interval of above-mentioned load, have a change-over time, can be used as the adjustment of this voltage source or this current source this change-over time.
The present invention is according to the required power specification of load charging, use program-controlled mode to adjust the output power of power supply unit, and all change the switching of switch at least to use program-controlled mode timesharing ground control, thus, can be sent to storage capacitor by above-mentioned diverter switch respectively by the charging power that different loads is required, charge so that different loads to be provided.
The above; only be the detailed description and the accompanying drawing of one of best specific embodiment of the present invention; but feature of the present invention is not limited thereto; be not in order to restriction the present invention; protection scope of the present invention should be as the criterion with claims, and all closing in the embodiment of the spirit variation similar with it of claims of the present invention all should be contained in the category of the present invention; anyly be familiar with this operator in the field of the invention, can think easily and variation or modify all can be encompassed in the claim of the present invention.
Claims (10)
1. program-controlled universal charging device to a load or simultaneously to a plurality of similar and different loads chargings, comprising:
A power supply changeover device converts alternating electromotive force to direct current power output;
At least one is connected in this power supply changeover device separately by a diverter switch storage capacitor by the switching of above-mentioned diverter switch, captures this direct current power discontinuously, and carries out energy storage; And
A control unit, be connected in this power supply changeover device, above-mentioned storage capacitor and above-mentioned diverter switch, demand according to the different loads charging power, control this power supply changeover device and adjust this direct current power output, and the switching time of above-mentioned diverter switch is controlled in timesharing, and then this different direct current powers is stored in above-mentioned storage capacitor respectively, so that different loads is charged.
2. program-controlled universal charging device as claimed in claim 1, wherein, further include a discharge switch, be connected in output and this control unit of this power supply changeover device, be controlled by this control unit, downgrade this direct current power in order to quicken this power supply changeover device linearity.
3. program-controlled universal charging device as claimed in claim 1, wherein, this control unit connects a digital simulation transducer by a microprocessor and forms, this microprocessor is according to the load charging data that stores in its internal storage, carry out the Charge Management program, in order to the above-mentioned diverter switch of timesharing ground control, give this power supply changeover device by this program-controlled voltage signal of digital analog converter transmission and a programmable current signal simultaneously, adjust this direct current power output, to provide the different loads charging required voltage and electric current.
4. program-controlled universal charging device as claimed in claim 3, wherein, this microprocessor further has a data transmission port, by the external source of information of this data transmission port, obtains and upgrades this load charging data that stores this microprocessor internal holder from this source of information.
5. program-controlled universal charging device as claimed in claim 4, wherein, this data transmission port is a usb data transmit port.
6. program-controlled universal charging device as claimed in claim 3 wherein, further has an input unit to be connected in this microprocessor, imports data or set point to this microprocessor internal memory for the user.
7. program-controlled universal charging device as claimed in claim 3 wherein, further has a display unit to be connected in this microprocessor, is used for the display data message.
8. program-controlled universal charging device as claimed in claim 3, wherein, this power supply changeover device comprises:
A front end change-over circuit converts this alternating electromotive force the output of to direct current supply electric power; And
A rear end change-over circuit is connected in this front end converting unit, is this direct current power with this direct current supply power conversions.
9. program-controlled universal charging device as claimed in claim 8, wherein, this rear end change-over circuit comprises:
A converting unit, its input side are connected in this front end change-over circuit, this direct current supply power conversions is exported, and exported this direct current power in this converting unit outlet side;
A feedback network, be connected in this converting unit outlet side, this digital analog converter and this microprocessor, obtain voltage feedback signal and current feedback signal from this converting unit outlet side, and send it to this microprocessor, obtain this program-controlled voltage signal and this programmable current signal from this digital analog converter simultaneously; And
A PWM controller, connect this feedback network, this microprocessor and this converting unit input side, according to the comparison operation of this voltage feedback signal and this program-controlled voltage signal or the comparison operation of this current feedback signal and this programmable current signal, in order to control this converting unit, to adjust this direct current power output.
10. program-controlled universal charging device as claimed in claim 9, wherein, this feedback network comprises:
A Voltage Feedback network is connected in the outlet side of this converting unit, detects the voltage of this direct current power, in order to export this voltage feedback signal;
A voltage error amplifier connects this Voltage Feedback network and this digital analog converter, this voltage feedback signal of comparison operation and this program-controlled voltage signal, output voltage modulating signal;
A current feedback network is connected in the outlet side of this converting unit, detects the magnitude of current of this direct current power, in order to export this current feedback signal;
A current error amplifier connects this current feedback network and this digital analog converter, this current feedback signal of comparison operation and this programmable current signal, output current modulating signal; And
One or, be connected in this voltage error amplifier, this current error amplifier and this PWM controller, select this voltage modulation signal or this current modulating signal to control the pulse duration of this PWM controller output, to adjust the voltage or the magnitude of current of this converting unit output DC power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100559986A CN100395941C (en) | 2005-03-24 | 2005-03-24 | Program-controlled universal charging device and charging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100559986A CN100395941C (en) | 2005-03-24 | 2005-03-24 | Program-controlled universal charging device and charging method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1838507A CN1838507A (en) | 2006-09-27 |
| CN100395941C true CN100395941C (en) | 2008-06-18 |
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|---|---|---|---|
| CNB2005100559986A Expired - Fee Related CN100395941C (en) | 2005-03-24 | 2005-03-24 | Program-controlled universal charging device and charging method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4849682A (en) * | 1987-10-30 | 1989-07-18 | Anton/Bauer, Inc. | Battery charging system |
| US20010017531A1 (en) * | 2000-02-24 | 2001-08-30 | Makita | Adapters for rechargeable battery packs |
| WO2004071872A2 (en) * | 2003-02-10 | 2004-08-26 | Mobilewise, Inc. | Method and system for sequential charging of multiple devices by a programmable power supply |
| CN2667775Y (en) * | 2003-11-07 | 2004-12-29 | 中国电子科技集团公司第三十研究所 | Universal multi-channel mobile telephone charger |
-
2005
- 2005-03-24 CN CNB2005100559986A patent/CN100395941C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4849682A (en) * | 1987-10-30 | 1989-07-18 | Anton/Bauer, Inc. | Battery charging system |
| US20010017531A1 (en) * | 2000-02-24 | 2001-08-30 | Makita | Adapters for rechargeable battery packs |
| WO2004071872A2 (en) * | 2003-02-10 | 2004-08-26 | Mobilewise, Inc. | Method and system for sequential charging of multiple devices by a programmable power supply |
| CN2667775Y (en) * | 2003-11-07 | 2004-12-29 | 中国电子科技集团公司第三十研究所 | Universal multi-channel mobile telephone charger |
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|---|---|
| CN1838507A (en) | 2006-09-27 |
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Granted publication date: 20080618 Termination date: 20100324 |