CA1151722A - Adaptor for high intensity arc discharge lamps - Google Patents
Adaptor for high intensity arc discharge lampsInfo
- Publication number
- CA1151722A CA1151722A CA000305769A CA305769A CA1151722A CA 1151722 A CA1151722 A CA 1151722A CA 000305769 A CA000305769 A CA 000305769A CA 305769 A CA305769 A CA 305769A CA 1151722 A CA1151722 A CA 1151722A
- Authority
- CA
- Canada
- Prior art keywords
- resistor
- capacitor
- adaptor
- triac
- inductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
- H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/042—Starting switches using semiconductor devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/07—Starting and control circuits for gas discharge lamp using transistors
Abstract
ABSTRACT
An adaptor for use with incandescent lamp sockets includes a circuit for igniting a high intensity arc discharge lamp and limiting the current flow thereto. The adaptor includes means for connecting to a source of electrical power and means for connecting to an incandescent lamp socket.
An adaptor for use with incandescent lamp sockets includes a circuit for igniting a high intensity arc discharge lamp and limiting the current flow thereto. The adaptor includes means for connecting to a source of electrical power and means for connecting to an incandescent lamp socket.
Description
THE INVENTION
I This invention is eoneerned with conserving energy by increasing the efficieney oi inca~descent lighting system~. The efficiency of I _-ineandeseent lamps uBed for general illuminatlon purposes is only about 12 to 20 lumens per watt. It is the purpose o~ this invention to provide an adaptor that permits use of high intensity arc discharge ~HID) lamp~ with ineandescent lamp soekets, the ef~iciency of HID lamps I -lS being mueh hlgher than that of incandescent lamps.
An adaptor ln aeeordance with this invention eontains means for l~
eonneeting to a p~wer line, means ior eonneeting to an incandescent l~mp soeket and means for igniting an HID lamp and limiting the current flow thereto. The HID lamp i8 ignited by an electrical pulse, the voltage of which is sufficient for lgnition but thè energy of which is earefully eontrolled to that whieh can be safely withstood by usual ineanteseent lamp sockets over long life periods of ti~e, without deleterlous effeet from the high voltage of the pulse.
In the drawing Fig. 1 is a sehematic diagram of an sdaptor in aeeordance with this invention. Fig. 2 shows one embodiment of such an adaptor and Pig. 3 shows another.
The cireuit of an adaptor in accorda~ce witb this invention, as shown in Yig. l, eomprises wires 1 and 2 for connect~on to a souree ~f AC power. Conneeted aeross wires 1 and 2 are a resistor 3 and a capaeitor 4. Also connected across wires 1 and 2 are an inductor 5 - 1 - ' .' ~, ~ . ~ :
L15~7Z;~: ~
D-8686-L ¦ and a socket into which HID lamp 6 is inserted In this e~ample, ¦, inductor 5 is the secondary winding of a transfonmer. In parallel wi~h ¦l lamp 6 is a resistor 8 and~a capacitor 9. One side of a di2c 10 is Il connected between resistor 8 and capacitor 9 and the other side of diac j 1 5 l~ 10 is connected to the gate of a triac 11. Triac 11 is in series with ~' primary 12 of the transformer, and triac li and primary 12 are in ~aralle~
j~ with capacitor 4. A protective circuit breaker 13 and a switch 14 may be , installed in the power input lines.
When switch 14 iæ closed, voltage from the power source is applied througb current limiting inductor 5 and across both læmp 6 and the serie~ combination of resistor 8 and capaci~.or 9. ~hen sufficient -voltage builds up across capacitor 9, diac 10 is fired which in turn I _~
; ¦ trigger6 triac ll. Triac 11 then appears as a short circuit, allowing I the charge on capacitor 4 to be discharged through primary 12. X~e _.
¦ induced XMF impressed on pri~ary 12 is amplified by the turns ratio ¦acro~s secondary 5 and appears as a voltage spike to lamp 6. Resi~tor 3 J ¦prevents the power ~ource from shorting through primary 12 when triac ~ trlggered. On each hal cycle o the AC power source, the circuit ¦ls timed to produce one or more high voltage pulses to lamp 6. Ater ¦lamp lgnltion, the voltage acrcss capacitor 9 is insufiicient to fire ~diac 10 and voltage pulses are not generated, except in the sit~ation of ~
la lamp operating at a higher than design voltage. In such a casc, due to the phase differences involved, capacitor;14 is not heavily charged and a ~ingle very low voltage pulse, for example, about 5 volts, will occur on each half cycle.
In a specific example, inductor 5 was a choke having a trlgger winding 12 ant was constructed to deliver, with 120 AC volts input, 1.2 amperes to a resistor load having a voltage drop of 76 volts thereacross.
¦The turns ratio between inductor winding (secondary) ; and trigger winding ~(primary) 12 was 7 to 1.
Resistor 8 and capacitor 9 c~mprised a network which detenmined the firing time of diac 10 and,therefore, of triac 11 and of the time , - 2 -'.
I ~ ii17Z2 D-8686-L ~ of deliv~ry of the pulse voltage to lamp 6. In this e~ample, resistor 8 had a value of 68,000 ohms, capacitor 9 of 0.1 microfarad and the firing time was ~0 , ~hat is to say, one quarter of a cycle, which is when peak voltage occurs; for a 60 hertz power source, the firing tine was about ¦¦ 4 milliseconds.
¦ Diac 10 was type GT32 made by ECC Corp. and had a firing voltage of 27 to 37 volts. Triac 11 was type Q200E3, also made by ECC Corp.
Resistor 3 and capacitor 4 comprised an energy storage network and had values oP 15,000 ohms and 0.047 microfarads respectively. Their value9 were such that capacitor 4 was approxLmately fully charged to peak AC line voltage at the time of firing of diac 10 and triac 11, and also limited the energy delivered to the socket of lamp 6, for example, to soc _ i et 7 in Fig 2. or to electrical outlet 15 in Fig. 3. On a 120 volt line the ignition pulse delivared to the socke~ about 1200 or 1300 volts !.
and the energy thereof was less than about one millijoule.
, An ex~mple o~ lamp 6 used with this invention was a high pressure : sodlum lzmp having a base that would screw into an incandescent lamp socket. On a 120 volt power line, the input power to the adaptor was 66 watts, the input power to the Llmp was 58 watts, the voltage across the lamp was 61 volts and the lamp output was 4180 lumens, eguivalent to 63 lumens per watt.
The adaptor shown in FIG. 2 has an incandescent lamp base 16, for example, Leviton No. 165-1, at one end thereof ior screwing into an lncandescent lsmp socket, as might be contained, 8ay, in a ceiling fixture. At the other end oi the adaptor i8 socket 7, for example, Leviton ~o. 3352-8, or screwing an incandescent lamp thereinto. The bulk of the adaptor comprises inductor 5 which, in this embodiment, i8 suitably encapsulated. ~hé othé~ éléc~onic componén~s o thë circuit are containad within hollow base 16, the purpose being to separate them from the heat generated in inductor 5 In the ~mbodiment shown in Fig. 3, inductor 5 is positioned in about the center of-the adaptor and the other electronic components are locsted at end section 17 of the adaptor. Circuit brea~er 13 is , - 3 -I .
,, .'( i I
D-8686-L jl located at the other end. The adaptor c~mprises an electrical plug 1 for plugging the adaptor into ~n electrical outlet, fo~ example, a wall ¦ outlet, and has its own outlet ~ into which the plug o~ the cord of~
1~ say, a table lamp could be plugged. The adaptor rests on rails 19 to permit air circulation thereunder for cooling purposes. This type of ¦ adaptor is~ore suitable for table lamps since it does not mal~e the i l~mp top heavy. ¦
iTypical incandescent lamp sockets in common usage have a rating of, for example,660 watts, 250 volts. Since the ignition pulse as considerab L~
higher than 250 volts, the energy of the pulse must be limited to that amount which will not adversely affect the life of such sockets.
The circuit of this invention could also be inserted into a j _-standard electrical junction box which could be directly wired into, say, the ceiling of a building. A suitable socket would extend frcm the lower surface of the Junct~orl box into which an HID lamp 6 could i ~~
;~ ¦ be screwed.
I
, ~.
I This invention is eoneerned with conserving energy by increasing the efficieney oi inca~descent lighting system~. The efficiency of I _-ineandeseent lamps uBed for general illuminatlon purposes is only about 12 to 20 lumens per watt. It is the purpose o~ this invention to provide an adaptor that permits use of high intensity arc discharge ~HID) lamp~ with ineandescent lamp soekets, the ef~iciency of HID lamps I -lS being mueh hlgher than that of incandescent lamps.
An adaptor ln aeeordance with this invention eontains means for l~
eonneeting to a p~wer line, means ior eonneeting to an incandescent l~mp soeket and means for igniting an HID lamp and limiting the current flow thereto. The HID lamp i8 ignited by an electrical pulse, the voltage of which is sufficient for lgnition but thè energy of which is earefully eontrolled to that whieh can be safely withstood by usual ineanteseent lamp sockets over long life periods of ti~e, without deleterlous effeet from the high voltage of the pulse.
In the drawing Fig. 1 is a sehematic diagram of an sdaptor in aeeordance with this invention. Fig. 2 shows one embodiment of such an adaptor and Pig. 3 shows another.
The cireuit of an adaptor in accorda~ce witb this invention, as shown in Yig. l, eomprises wires 1 and 2 for connect~on to a souree ~f AC power. Conneeted aeross wires 1 and 2 are a resistor 3 and a capaeitor 4. Also connected across wires 1 and 2 are an inductor 5 - 1 - ' .' ~, ~ . ~ :
L15~7Z;~: ~
D-8686-L ¦ and a socket into which HID lamp 6 is inserted In this e~ample, ¦, inductor 5 is the secondary winding of a transfonmer. In parallel wi~h ¦l lamp 6 is a resistor 8 and~a capacitor 9. One side of a di2c 10 is Il connected between resistor 8 and capacitor 9 and the other side of diac j 1 5 l~ 10 is connected to the gate of a triac 11. Triac 11 is in series with ~' primary 12 of the transformer, and triac li and primary 12 are in ~aralle~
j~ with capacitor 4. A protective circuit breaker 13 and a switch 14 may be , installed in the power input lines.
When switch 14 iæ closed, voltage from the power source is applied througb current limiting inductor 5 and across both læmp 6 and the serie~ combination of resistor 8 and capaci~.or 9. ~hen sufficient -voltage builds up across capacitor 9, diac 10 is fired which in turn I _~
; ¦ trigger6 triac ll. Triac 11 then appears as a short circuit, allowing I the charge on capacitor 4 to be discharged through primary 12. X~e _.
¦ induced XMF impressed on pri~ary 12 is amplified by the turns ratio ¦acro~s secondary 5 and appears as a voltage spike to lamp 6. Resi~tor 3 J ¦prevents the power ~ource from shorting through primary 12 when triac ~ trlggered. On each hal cycle o the AC power source, the circuit ¦ls timed to produce one or more high voltage pulses to lamp 6. Ater ¦lamp lgnltion, the voltage acrcss capacitor 9 is insufiicient to fire ~diac 10 and voltage pulses are not generated, except in the sit~ation of ~
la lamp operating at a higher than design voltage. In such a casc, due to the phase differences involved, capacitor;14 is not heavily charged and a ~ingle very low voltage pulse, for example, about 5 volts, will occur on each half cycle.
In a specific example, inductor 5 was a choke having a trlgger winding 12 ant was constructed to deliver, with 120 AC volts input, 1.2 amperes to a resistor load having a voltage drop of 76 volts thereacross.
¦The turns ratio between inductor winding (secondary) ; and trigger winding ~(primary) 12 was 7 to 1.
Resistor 8 and capacitor 9 c~mprised a network which detenmined the firing time of diac 10 and,therefore, of triac 11 and of the time , - 2 -'.
I ~ ii17Z2 D-8686-L ~ of deliv~ry of the pulse voltage to lamp 6. In this e~ample, resistor 8 had a value of 68,000 ohms, capacitor 9 of 0.1 microfarad and the firing time was ~0 , ~hat is to say, one quarter of a cycle, which is when peak voltage occurs; for a 60 hertz power source, the firing tine was about ¦¦ 4 milliseconds.
¦ Diac 10 was type GT32 made by ECC Corp. and had a firing voltage of 27 to 37 volts. Triac 11 was type Q200E3, also made by ECC Corp.
Resistor 3 and capacitor 4 comprised an energy storage network and had values oP 15,000 ohms and 0.047 microfarads respectively. Their value9 were such that capacitor 4 was approxLmately fully charged to peak AC line voltage at the time of firing of diac 10 and triac 11, and also limited the energy delivered to the socket of lamp 6, for example, to soc _ i et 7 in Fig 2. or to electrical outlet 15 in Fig. 3. On a 120 volt line the ignition pulse delivared to the socke~ about 1200 or 1300 volts !.
and the energy thereof was less than about one millijoule.
, An ex~mple o~ lamp 6 used with this invention was a high pressure : sodlum lzmp having a base that would screw into an incandescent lamp socket. On a 120 volt power line, the input power to the adaptor was 66 watts, the input power to the Llmp was 58 watts, the voltage across the lamp was 61 volts and the lamp output was 4180 lumens, eguivalent to 63 lumens per watt.
The adaptor shown in FIG. 2 has an incandescent lamp base 16, for example, Leviton No. 165-1, at one end thereof ior screwing into an lncandescent lsmp socket, as might be contained, 8ay, in a ceiling fixture. At the other end oi the adaptor i8 socket 7, for example, Leviton ~o. 3352-8, or screwing an incandescent lamp thereinto. The bulk of the adaptor comprises inductor 5 which, in this embodiment, i8 suitably encapsulated. ~hé othé~ éléc~onic componén~s o thë circuit are containad within hollow base 16, the purpose being to separate them from the heat generated in inductor 5 In the ~mbodiment shown in Fig. 3, inductor 5 is positioned in about the center of-the adaptor and the other electronic components are locsted at end section 17 of the adaptor. Circuit brea~er 13 is , - 3 -I .
,, .'( i I
D-8686-L jl located at the other end. The adaptor c~mprises an electrical plug 1 for plugging the adaptor into ~n electrical outlet, fo~ example, a wall ¦ outlet, and has its own outlet ~ into which the plug o~ the cord of~
1~ say, a table lamp could be plugged. The adaptor rests on rails 19 to permit air circulation thereunder for cooling purposes. This type of ¦ adaptor is~ore suitable for table lamps since it does not mal~e the i l~mp top heavy. ¦
iTypical incandescent lamp sockets in common usage have a rating of, for example,660 watts, 250 volts. Since the ignition pulse as considerab L~
higher than 250 volts, the energy of the pulse must be limited to that amount which will not adversely affect the life of such sockets.
The circuit of this invention could also be inserted into a j _-standard electrical junction box which could be directly wired into, say, the ceiling of a building. A suitable socket would extend frcm the lower surface of the Junct~orl box into which an HID lamp 6 could i ~~
;~ ¦ be screwed.
I
, ~.
Claims (2)
1. An adaptor for operation of a high intensity arc discharge lamp comprising: a first and second wire for connecting the adaptor to an AC power source, the combination of a first resistor in series with a first capacitor, electrically connected between the first and second wires; a series circuit of an inductor, a second resistor and a second capacitor, electrically connected in parallel with said combina-tion; lamp receiving socket means shunting said second resistor and second capacitor of said series circuit; a trigger winding on the inductor, one end of which is connected to a point between said first resistor and said first capacitor, the other end of which is connected to one end of a triac, the other end of the triac being connected to said second wire; the gate of the triac being connected to one side of a diac, the other side of the diac being connected to a point between said second resistor and said second capacitor.
2. An adapter for operation of a high intensity arc discharge lamp comprising: a housing containing an inductor having a trigger winding, an electronic circuit and an electrical outlet; an external electric plug connected to said housing and said electronic circuit including a first resistor in series with a first capacitor shunting said electrical plug, said inductor coupling said resistor and said electrical plug to said electrical outlet, a triac coupled by said trigger winding to the junction of said first resistor and capacitor;
a diac coupled to said triac; and a series connected second resistor and capacitor shunting said electrical outlet and coupled to said electrical plug with the junction therebetween coupled to said diac.
a diac coupled to said triac; and a series connected second resistor and capacitor shunting said electrical outlet and coupled to said electrical plug with the junction therebetween coupled to said diac.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80812677A | 1977-06-20 | 1977-06-20 | |
| US808,126 | 1977-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1151722A true CA1151722A (en) | 1983-08-09 |
Family
ID=25197938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000305769A Expired CA1151722A (en) | 1977-06-20 | 1978-06-19 | Adaptor for high intensity arc discharge lamps |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4326149A (en) |
| JP (1) | JPS548885U (en) |
| BE (1) | BE868058A (en) |
| CA (1) | CA1151722A (en) |
| DE (1) | DE2826128A1 (en) |
| FR (1) | FR2395667A1 (en) |
| GB (1) | GB1605073A (en) |
| NL (1) | NL7805246A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3108548C2 (en) * | 1981-03-06 | 1986-07-31 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Ignition circuit for a high pressure metal vapor discharge lamp |
| US4414600A (en) * | 1981-12-21 | 1983-11-08 | Esquire, Inc. | Protection device for high intensity gaseous discharge lamp starting circuit |
| US4495443A (en) * | 1984-01-27 | 1985-01-22 | Cummings John H | Compact fluorescent lamp combination, and method of making it |
| GB2172451B (en) * | 1985-02-07 | 1989-06-14 | El Co Villamos Keszulekek Es S | Circuit system for igniting and lighting a high-pressure discharge lamp particulary a sodium vapour lamp |
| US4683402A (en) * | 1985-04-25 | 1987-07-28 | Truman Aubrey | Adaptors for fluorescent lamps |
| US5298837A (en) * | 1992-09-22 | 1994-03-29 | Online Energy, Inc. | Ultraviolet flash dryer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3275922A (en) * | 1962-12-19 | 1966-09-27 | Sperry Rand Corp | Conversion and ballast unit |
| US3401265A (en) * | 1964-07-06 | 1968-09-10 | Mallory & Co Inc P R | Current control circuit with silicon controlled rectifiers and a phase shifting circuit |
| US3466500A (en) * | 1967-12-29 | 1969-09-09 | Sylvania Electric Prod | Control circuit for arc discharge device |
| FI41840B (en) * | 1968-05-10 | 1969-12-01 | Nokia Oy Ab | |
| JPS5246686A (en) * | 1975-10-08 | 1977-04-13 | Japan Storage Battery Co Ltd | Device for igniting a dischrge lamp |
-
1978
- 1978-05-16 NL NL7805246A patent/NL7805246A/en not_active Application Discontinuation
- 1978-05-25 GB GB22821/78A patent/GB1605073A/en not_active Expired
- 1978-06-13 BE BE2057051A patent/BE868058A/en not_active IP Right Cessation
- 1978-06-15 DE DE19782826128 patent/DE2826128A1/en not_active Withdrawn
- 1978-06-19 CA CA000305769A patent/CA1151722A/en not_active Expired
- 1978-06-19 FR FR7818205A patent/FR2395667A1/en active Granted
- 1978-06-20 JP JP1978085314U patent/JPS548885U/ja active Pending
-
1980
- 1980-09-22 US US06/189,550 patent/US4326149A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2395667A1 (en) | 1979-01-19 |
| JPS548885U (en) | 1979-01-20 |
| FR2395667B3 (en) | 1981-02-20 |
| BE868058A (en) | 1978-10-02 |
| GB1605073A (en) | 1981-12-16 |
| DE2826128A1 (en) | 1978-12-21 |
| NL7805246A (en) | 1978-12-22 |
| US4326149A (en) | 1982-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |