CN201207746Y - Full digital automobile rectifier - Google Patents
Full digital automobile rectifier Download PDFInfo
- Publication number
- CN201207746Y CN201207746Y CNU2008200443546U CN200820044354U CN201207746Y CN 201207746 Y CN201207746 Y CN 201207746Y CN U2008200443546 U CNU2008200443546 U CN U2008200443546U CN 200820044354 U CN200820044354 U CN 200820044354U CN 201207746 Y CN201207746 Y CN 201207746Y
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- China
- Prior art keywords
- circuit
- down controller
- down converter
- rectifier
- utility
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- 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 - Fee Related
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- Circuit Arrangements For Discharge Lamps (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The utility model is a full digital auto rectifier which comprises an electromagnetic interference(EMI) filter circuit that is connected with a power supply input; a boost converter that is connected to the filter circuit and is composed of a push-pull transistors, a step-up transformer, a rectifying diode and a filter capacitor; a step-down converter that is connected between a rectifier circuit and a DC/AC conversion circuit; a DC/AC conversion circuit which is connected between the step-down converter and a load circuit, providing an AC square wave to the automobile xenon lamps; an ignition circuit which includes an extra boost converter windings, a capacitor and a spark discharging switch; a digital signal processor that is connected between the power input and the step-down converter to control the conduction rate of the step-down converter according to the input voltage of the power supply and to achieve the purpose of determined power control. The utility model greatly simplifies the circuit structure, thus reducing the electrical components by 60-70 pieces, and saving the manufacturing cost.
Description
Technical field
The utility model belongs to the automotive lighting parts, more particularly relates to a kind of vehicle xenon lamp rectifier.
Background technology
At present, (High Intensity Discharge HID), also claims xenon lamp to high-voltage gas discharging light, has been widely used in the light source of every indoor and outdoor lighting equipment.Because luminous intensity, efficient, life-span and the color rendering of this lamp are good than Halogen lamp LED all, in each senior car type, be extensive use of the light source of xenon lamp, in recent years so that high-quality lighting source to be provided as auto lamp.Domesticly at present still belong to the starting stage at automobile with the design of xenon lamp electronic type rectifier, domestic employed rectifier mainly is analog, its complex structure, manufacturing cost height.
The utility model content
The purpose of this utility model provides a kind of full digital, can save the auto rectifier of electric elements.
In order to achieve the above object, the utility model adopts this technical scheme:
A kind of all-digital auto rectifier comprises: an electromagnetic interference filter circuit is connected in power input; One boost converter is connected in after the filter circuit, is made up of push-pull transistor, step-up transformer and rectifier diode and filter capacitor; One step-down controller is connected rectification circuit and direct current between the ac conversion circuit; One direct current is connected between step-down controller and the load circuit ac conversion circuit, provides AC square wave current to the vehicle xenon lamp; One firing circuit comprises extra winding, capacitor and the spark discharge switch of boost converter; One digital signal processor is connected between power input and the step-down controller, according to the size of the supply voltage of the input on-state rate with the control step-down controller, reaches the purpose of deciding power control.
Compared with prior art, replace control integrated circuit, simplified circuit structure greatly, thereby make electric elements reduce 60-70, saved manufacturing cost owing to be provided with digital signal processor.
Description of drawings
Fig. 1 is a circuit framework square of the present utility model;
Fig. 2 is a circuit diagram of the present utility model.
Embodiment
Below in conjunction with most preferred embodiment and accompanying drawing, the utility model is described in further detail.
See also the utility model circuit framework calcspar shown in Figure 1 and circuit diagram of the present utility model shown in Figure 2, the utility model mainly is to use 12V battery tension 1 via a filter circuit 2 filtering electromagnetic interference in automobile, boost, send into step-down controller 4 after rectification and the filtering by boost converter 3, this step-down controller 4 is made up of crystal switch pipe, diode and inductance and electric capacity, one full-bridge type direct current places after the step-down controller 4 ac conversion circuit 5, and it is made up of crystal switch pipe, drive circuit; One high-tension igniton circuit 6 is connected in series in the ac output end of direct current to ac conversion circuit 5 with xenon lamp 7, produces high voltage to light xenon lamp 7; One digital signal processor 8 is connected between power input and the step-down controller.
The operation principle of the utility model circuit is as described below: the supply voltage of filter circuit 2 filtering that will form via inductance and electric capacity; send into the push-pull type voltage up converting circuit 3 of electric current pattern; (this drive circuit can be the bifurcation square-wave oscillator circuit to utilize drive circuit; two ends are alternately exported high/low level and are transported to respectively and alternate conduction) the square worker that drives crystal switch pipe and alternate conduction promoted the automobile storage battery voltage 1 of 12V through transformer; again with diode and diode rectification; capacitor filtering becomes high-tension direct voltage; this direct voltage must be higher than the stable state light tube electric voltage value of maximum possible; again this direct voltage is transferred to the crystal switch pipe; inductance; the step-down controller 4 that diode and electric capacity are formed is made Current Control; the electric current of this control is mainly xenon lamp 7 provides a stable electric current; the energy storage component inductance is operated in the discontinuous current pattern; can reduce the loss of crystal switch pipe; it is last that (this drive circuit can be the bifurcation square-wave oscillator circuit via drive circuit with this controlled stabling current again; high/low level is alternately exported at two ends; to drive crystal switch pipe alternate conduction; its neutralization connects an end of oscillating circuit by lead-in wire; the crystal switch pipe connects the other end of oscillating circuit by lead-in wire) to drive the direct current that the crystal switch pipe formed ac conversion circuit 5 is converted to alternating current; can be connected to xenon lamp 7 two ends of load; obtain a stable ac square-wave voltage and a current waveform; firing circuit 6 is a power supply with the extra winding of boost converter 3; cooperate transformer; electric capacity and spark discharge switch; generation reaches instantaneous function of lighting a lamp up to the high pressure more than the 25kV; control circuit 8 is controlled the on-state rate of step-down controller 4 according to the size of the supply voltage of input; to reach the purpose of deciding power control; outside this, digital signal processor also can be implemented the control of lighting a lamp by inches; the supply voltage reversal connection; electric light such as does not connect at defencive function.
Claims (1)
1. an all-digital auto rectifier comprises,
One electromagnetic interference filter circuit is connected in power input;
One boost converter is connected in after the filter circuit, is made up of push-pull transistor, step-up transformer and rectifier diode and filter capacitor;
One step-down controller is connected rectification circuit and direct current between the ac conversion circuit;
One direct current is connected between step-down controller and the load circuit ac conversion circuit, provides AC square wave current to the vehicle xenon lamp;
One firing circuit comprises extra winding, capacitor and the spark discharge switch of boost converter;
It is characterized in that, also comprise,
One digital signal processor is connected between power input and the step-down controller, according to the size of the supply voltage of the input on-state rate with the control step-down controller, reaches the purpose of deciding power control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200443546U CN201207746Y (en) | 2008-02-28 | 2008-02-28 | Full digital automobile rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200443546U CN201207746Y (en) | 2008-02-28 | 2008-02-28 | Full digital automobile rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207746Y true CN201207746Y (en) | 2009-03-11 |
Family
ID=40466799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200443546U Expired - Fee Related CN201207746Y (en) | 2008-02-28 | 2008-02-28 | Full digital automobile rectifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207746Y (en) |
-
2008
- 2008-02-28 CN CNU2008200443546U patent/CN201207746Y/en not_active Expired - Fee Related
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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: 20090311 Termination date: 20100228 |