CN201230396Y - Full digital high pressure xenon vapor lamp controller - Google Patents
Full digital high pressure xenon vapor lamp controller Download PDFInfo
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- CN201230396Y CN201230396Y CNU2008200942277U CN200820094227U CN201230396Y CN 201230396 Y CN201230396 Y CN 201230396Y CN U2008200942277 U CNU2008200942277 U CN U2008200942277U CN 200820094227 U CN200820094227 U CN 200820094227U CN 201230396 Y CN201230396 Y CN 201230396Y
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- triode
- circuit
- comparator
- xenon lamp
- resistance
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Abstract
The utility model relates to a xenon lamp controller and provides a full digital high-voltage xenon lamp controller. The full digital high-voltage xenon lamp controller is connected with a high-voltage bag and a xenon lamp, and comprises a DC/AC converting circuit, a main control unit, and a current limiting circuit which carries out quick current limiting protection to the xenon lamp; the current limiting circuit is connected with the DC/AC converting circuit and the main control unit; the main control unit comprises a PWM control module which is connected with the current limiting circuit and drives the current limiting circuit to work. The controller can quickly control the input current, thereby improving the performance of the xenon lamp controller.
Description
Technical field
The utility model relates to the xenon lamp controller, more particularly, relates to a kind of digital high-pressure xenon lamp controller.
Background technology
Along with the requirement at aspects such as intensity of illumination, spectral purity and efficient such as automotive lighting and plaza lighting improves constantly, high pressure xenon gas lamp (High Intensity Discharge, abbreviation " HID ") application will be more and more widely, and is at present general with the application on the headlight of automobile.Whole high pressure xenon gas lamp can be divided into three parts, i.e. xenon lamp, controller (being also referred to as " stabilizer ") and high voltage package.And the performance of high pressure xenon gas lamp depends primarily on controller, and controller is the core component of high pressure xenon gas lamp, and it mainly acts on is the process of lighting a lamp that starts fast; When input voltage (in the scope that is requiring) changes, offer stable voltage of xenon lamp and power, prevent to be descended in the life-span of xenon lamp because of exporting unsettled high pressure to the infringement that xenon lamp produces; In addition, controller also need prevent to produce big electromagnetic interference, influences in the automobile as equipment such as sound equipments; Other also should have over voltage protection, under-voltage protection, earth leakage protective, short-circuit protection, reverse connecting protection, open-circuit-protection, waterproof, high-low temperature resistant and key property such as not fragile.
The HID controller of existing market mainly is the first generation and second generation product, the first generation is called analog controller, it is the drive circuit of discrete component, the inverter circuit of discrete component becomes direct current into alternating current, many imperfection parts are arranged on the processing of circuit,, on to the control of xenon lamp, have some problems owing to do not adopt microprocessor, failure rate is higher, reaches about 10%.Second generation product is that drive circuit is become integrated circuit (for example UBA2032, IRF2111, ir2153 etc.), the dc inverter alternating current still is the metal-oxide-semiconductor inversion of component, many improvement are arranged on the routine processes, power tube heat radiation conduction is indirectly come out, reliability improves many, failure rate is also referred to as half word controller about about 3%～10%.And the third generation is a total digital controller; can discern the state of lamp; power is controlled; improved efficient; it is with multipoint control unit (Micro Conroller Unit; be called for short " MCU ") be key control unit, strengthened various controlled function and defencive function, be the direction of xenon lamp controller development.
There are many problems in existing high-pressure xenon lamp controller, and EMI noise for example can not be to generally being suitable for of different lamps, can not quick control etc. to the electric current of input, thus influenced the performance of high-pressure xenon lamp controller.Therefore need a kind of digital high-pressure xenon lamp controller, can carry out quick control to the circuit of input, thereby improve the performance of high-pressure xenon lamp controller.
The utility model content
The technical problems to be solved in the utility model is, at the not strong problem of prior art mesohigh xenon lamp controller performance, provides a kind of digital high-pressure xenon lamp controller.
The technical scheme that its technical problem that solves the utility model adopts is; construct a kind of digital high-pressure xenon lamp controller; described controller is connected with high voltage package, xenon lamp; it comprises DC/AC translation circuit and main control unit; described controller also comprises the current-limiting circuit of described xenon lamp being carried out quick current-limiting protection; described current-limiting circuit is connected with described DC/AC translation circuit and described main control unit, and described main control unit comprises the PWM control module that is connected and drives described current-limiting circuit work with described current-limiting circuit.
Preferably, described current-limiting circuit comprises the transformer that is connected with described high voltage package and described DC/AC translation circuit, the switching tube that is connected with described transformer, the chaff copper wire that is connected with described switching tube, the comparator that is connected with described chaff copper wire, the bleeder circuit that is connected with described comparator, and with described switching tube, the ON-OFF control circuit that comparator is connected with the PWM control module, described PWM control module drives described ON-OFF control circuit work, described comparator is arranged on described main control unit inside, sampling voltage on the described chaff copper wire and the reference voltage on the described bleeder circuit are input to the input of described comparator, and described ON-OFF control circuit is controlled the unlatching and the shutoff of described switching tube according to the output result of described comparator.
Further preferably, the drain electrode of the elementary and described switching tube of described transformer is connected, described ON-OFF control circuit comprises triode T1, triode T2, triode T3 and triode T4, the base stage of described triode T1 connects the output of described comparator, the collector electrode of described triode T1 is connected with the collector electrode of described triode T2, the base stage of described triode T2 is connected by the output of resistance with described PWM control module, the collector electrode of described triode T2 is connected with the base stage of triode T4 with triode T3 by resistance, and the emitter of described triode T3 and triode T4 is connected with the grid of described switching tube by resistance.
Further preferably, described bleeder circuit comprises resistance R 10 and resistance R 11, described resistance R 11 1 end ground connection, and the other end connects the input of resistance R 10 and comparator, and the other end of resistance R 10 is connected with 3.3V voltage.
The utility model is by being provided with the current-limiting circuit that can carry out quick current-limiting protection to the high pressure xenon gas lamp in controller, and the PWM control module that drives current-limiting circuit work, has realized the quick control to input current.Therefore, the utility model has improved the performance of high-pressure xenon lamp controller greatly.
Description of drawings
Fig. 1 is the internal module figure of digital high-pressure xenon lamp controller among the embodiment of the present utility model;
Fig. 2 is the circuit theory diagrams of current-limiting circuit among the embodiment of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, digital high-pressure xenon lamp controller 100 of the present utility model is when using, itself and high voltage package 200, high pressure xenon gas lamp (High Intensity Discharge, be called for short " HID ") 300 connections, controller 100 comprises main control unit 101, current-limiting circuit 102 and DC/AC translation circuit 103, main control unit 101 and current-limiting circuit 102, DC/AC translation circuit 103 connects, it is the control core component of controller 100, its inside comprises the PWM control module 1011 that is connected and drives current-limiting circuit 102 work with current-limiting circuit 102, PWM control module 1011 is according to voltage and the power of HID300, the calculating of sampling, thus the PWM waveform obtained.In one embodiment, main control unit 100 is multipoint control unit (Micro Conroller Unit is called for short " MCU "), for example C8051F300 of SILABS.
Current-limiting circuit 102 is connected with MCU101, DC/AC translation circuit 103, be used for HID300 is carried out quick current-limiting protection, its inside comprises transformer 1021, ON-OFF control circuit 1022, switching tube 1023, chaff copper wire 1024, bleeder circuit 1025 and comparator 1026, wherein, transformer 1021 is connected with high voltage package 200, DC/AC translation circuit 103 and switching tube 1023, and its primary current outputs in the switching tube 1023; ON-OFF control circuit 1022 is connected with PWM control module 1011, switching tube 1023 and comparator 1026, the PWM waveform of PWM control module 1011 outputs to ON-OFF control circuit 1022, be used for driving switch control circuit 1022, the output result of comparator 1026 delivers in the ON-OFF control circuit 1022, and ON-OFF control circuit 1022 is according to the output of the comparator 1026 opening and closing state of control switch pipe 1023 as a result; Switching tube 1023 is connected with transformer 1021, ON-OFF control circuit 1022, chaff copper wire 1024 and comparator 1026, chaff copper wire 1024 detects the sampling voltage of transformer 1021 primary currents by switching tube 1023, and is input to an input of comparator 1026; Chaff copper wire 1025 is connected with switching tube 1023, comparator 1026; Bleeder circuit 1025 is connected with comparator 1026, and the reference voltage on the bleeder circuit 1025 is input to another input of comparator 1026; Comparator 1026 is arranged on the inside of main control unit 101, it is connected with ON-OFF control circuit 1022, switching tube 1023, chaff copper wire 1024 and bleeder circuit 1025, be used for the sampling voltage of comparison transformer 1021 primary currents and the reference voltage on the bleeder circuit 1025, and comparative result is outputed to ON-OFF control circuit 1022.
As shown in Figure 2, in an embodiment of the present utility model, ON-OFF control circuit 1022 comprises triode T1, triode T2, triode T3 and triode T4, the base stage of triode T1 connects the output 3 of comparator D1 by resistance R 3, the output of PWM control module 1011 is connected with the base stage of triode T2 by resistance R 2, the collector electrode of triode T1 is connected with the collector electrode of triode T2, and by resistance R 4 connection 15V voltages, the emitter of triode T1 and triode T2 is ground connection all, the collector electrode of triode T2 is connected with the base stage of triode T4 with triode T3 by resistance R 5, the emitter of triode T3 connects the grid of switch transistor T 5 by resistance R 6, the collector electrode of triode T3 connects 15V voltage, the emitter of triode T4 connects the grid of switch transistor T 5 by resistance R 6, the grounded collector of triode T4, the drain electrode of switch transistor T 5 connects the elementary of transformer B, and source electrode connects chaff copper wire R8 by resistance R 9, and is connected with the input 1 of comparator D1.Bleeder circuit 1025 comprises resistance R 10 and resistance R 11, resistance R 11 1 end ground connection, and the other end connects the input 2 of resistance R 10 and comparator D1, and by capacitor C 2 ground connection, the other end of resistance R 10 is connected with 3.3V voltage.
In one embodiment; voltage is input to the elementary of transformer B; when switch transistor T 5 conductings; the source electrode of electric current from the drain electrode of switch transistor T 5 to switch transistor T 5; output to chaff copper wire R8 from source electrode again, chaff copper wire R8 one end connects signal coupling resistance R9, and resistance R 9 plays the effect to the impedance balance of comparator D1 two inputs; resistance R 9 one ends connect filter capacitor C1, connect diode D2 and the diode D3 that is used to protect comparator D1 simultaneously.The input 1 of comparator D1 is the sampling voltage V that the chaff copper wire R8 from switch transistor T 5 source electrodes goes up the primary current of detected transformer B
1, a suitable reference voltage V is set at input 2 usefulness divider resistance R10 and the R11 of comparator D1
2, the voltage of the input 2 of input comparator D1 is reference voltage V
2In each switch periods, the result of comparator D1 (being the output 3 of comparator D1) delivers to the base stage of triode T1.As sampling voltage V
1Less than reference voltage V
2The time, comparator D1 is output as low level, the current collection of triode T1 high level very then, and to the not influence of collector electrode output of triode T2, promptly the PWM to input drives not influence.As sampling voltage V
1Greater than reference voltage V
2The time, comparator D1 is output as high level, the current collection of triode T1 low level very then, it is the current collection low level very of triode T2, this low level can shield the PWM waveform of the collector electrode of triode T2, make triode T2 be output as low level, pass through the level adjustment of triode T3 and triode T4 again, output to the grid of switch transistor T 5.At this moment,, all make switch transistor T 5, thereby limited the electric current of input, reached the purpose of quick protection controller 100 at off state regardless of the PWM state of importing.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1, a kind of digital high-pressure xenon lamp controller; described controller is connected with high voltage package, xenon lamp; it comprises DC/AC translation circuit and main control unit; it is characterized in that; described controller also comprises the current-limiting circuit of described xenon lamp being carried out quick current-limiting protection; described current-limiting circuit is connected with described DC/AC translation circuit and described main control unit, and described main control unit comprises the PWM control module that is connected and drives described current-limiting circuit work with described current-limiting circuit.
2, digital high-pressure xenon lamp controller according to claim 1, it is characterized in that, described current-limiting circuit comprises the transformer that is connected with described high voltage package and described DC/AC translation circuit, the switching tube that is connected with described transformer, the chaff copper wire that is connected with described switching tube, the comparator that is connected with described chaff copper wire, the bleeder circuit that is connected with described comparator, and with described switching tube, the ON-OFF control circuit that comparator is connected with the PWM control module, described PWM control module drives described ON-OFF control circuit work, described comparator is arranged on described main control unit inside, sampling voltage on the described chaff copper wire and the reference voltage on the described bleeder circuit are input to the input of described comparator, and described ON-OFF control circuit is controlled the unlatching and the shutoff of described switching tube according to the output result of described comparator.
3, digital high-pressure xenon lamp controller according to claim 2, it is characterized in that, the drain electrode of the elementary and described switching tube of described transformer is connected, described ON-OFF control circuit comprises triode T1, triode T2, triode T3 and triode T4, the base stage of described triode T1 connects the output of described comparator, the collector electrode of described triode T1 is connected with the collector electrode of described triode T2, the base stage of described triode T2 is connected by the output of resistance with described PWM control module, the collector electrode of described triode T2 is connected with the base stage of triode T4 with triode T3 by resistance, and the emitter of described triode T3 and triode T4 is connected with the grid of described switching tube by resistance.
4, digital high-pressure xenon lamp controller according to claim 2, it is characterized in that described bleeder circuit comprises resistance R 10 and resistance R 11, described resistance R 11 1 end ground connection, the other end connects the input of resistance R 10 and described comparator, and the other end of resistance R 10 is connected with 3.3V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200942277U CN201230396Y (en) | 2008-05-27 | 2008-05-27 | Full digital high pressure xenon vapor lamp controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200942277U CN201230396Y (en) | 2008-05-27 | 2008-05-27 | Full digital high pressure xenon vapor lamp controller |
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| Publication Number | Publication Date |
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| CN201230396Y true CN201230396Y (en) | 2009-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200942277U Expired - Fee Related CN201230396Y (en) | 2008-05-27 | 2008-05-27 | Full digital high pressure xenon vapor lamp controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223743A (en) * | 2010-04-16 | 2011-10-19 | 北京京东方光电科技有限公司 | Light emitting diode (LED) driving control circuit and method thereof |
-
2008
- 2008-05-27 CN CNU2008200942277U patent/CN201230396Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223743A (en) * | 2010-04-16 | 2011-10-19 | 北京京东方光电科技有限公司 | Light emitting diode (LED) driving control circuit and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20130527 |