CN103840730A - Switch drive circuit of eddy current retarder controller - Google Patents
Switch drive circuit of eddy current retarder controller Download PDFInfo
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- CN103840730A CN103840730A CN201210486594.2A CN201210486594A CN103840730A CN 103840730 A CN103840730 A CN 103840730A CN 201210486594 A CN201210486594 A CN 201210486594A CN 103840730 A CN103840730 A CN 103840730A
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Abstract
The invention discloses a switch drive circuit of an eddy current retarder controller. According to the switch drive circuit of the eddy current retarder controller, an input end of a voltage regulator is connected with an internal voltage of a vehicle system, and an output end of the voltage regulator is connected with a frequency divider; a pulse signal output end of the frequency divider is connected with a base of a first transistor; a collector of the first triode is connected in parallel with a base of a second triode and a base of a third triode, and is connected with the internal voltage; a emitter of the first triode, a collector of the third triode, and one end of a filter capacitor are connected in parallel; an emitter of the second triode, an emitter of the third triode, and one end of a third capacitor are connected in parallel; a collector of the second triode is connected with the positive of a second diode VD1, and is connected with the internal voltage; the negative of the first diode, the other end of the third capacitor, and the positive of a second diode are connected in parallel; and the negative of the second diode is connected with the other end of the filter capacitor, and provides an output voltage to the eddy current retarder controller. The circuit of the invention has the characteristics of low cost, good safety and reliability performance, and etc..
Description
Technical field
The present invention relates to automobile electric eddy current retarder technical field, particularly relate to a kind of switch driving circuit of controller of current vortex retarder.
Background technology
Current vortex retarder is a kind of vehicle auxiliary braking system, is installed in vehicle drive system, is mainly used in vehicle auxiliary braking.The application of current vortex retarder can significantly improve fail safe and the comfortableness of car operation, and reduces maintenance and the replacement cost of motor vehicle braking system and tire, meanwhile, and the noise can also alleviate car brakeing time and dust pollution.
Controller of current vortex retarder is the important component part of electric turbine retarder, and this controller is mainly used in the various signals of analyzing and processes sensor collects, and exports certain command signal, so that current vortex retarder moves accordingly.
The working method of current controller of current vortex retarder mainly contains two kinds: i.e. relay switch control mode and high power module switch control mode.
Inventor finds realizing in process of the present invention: in relay switch control mode, the driving voltage of relay work is the builtin voltage that is directly taken from Vehicular system, and in high power module switch control mode, because required voltage is higher than the builtin voltage of Vehicular system, therefore, the driving voltage of circuit can not directly be taken from the builtin voltage of Vehicular system as the relay switch control mode, but need to carry out boosting inverter, thereby not only increase the cost of realizing of high power module switch control mode, but also cause harmful effect can to the security reliability of this control mode.
Because the problem that above-mentioned existing high power module switch control mode exists, practical experience and the professional knowledge of inventor based on being engaged in this type of product design manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, to founding a kind of switch driving circuit of controller of current vortex retarder of new structure, can overcome the problem that existing high power module switch control mode exists, make it have more practicality.Through continuous research and design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
The object of the invention is to, overcome the technical problem that existing high power module switch control mode exists, and provide a kind of switch driving circuit of controller of current vortex retarder of new structure, technical problem to be solved is, reduce high power module switch control mode to realize cost high, and improve the security reliability of this control mode.
The object of the invention to solve the technical problems can adopt following technical scheme to realize.
The switch driving circuit of a kind of controller of current vortex retarder proposing according to the present invention, mainly comprises: pressurizer, frequency divider, crystal, three triodes, two diodes, two resistance and four capacitors; The builtin voltage of the input access Vehicular system of described pressurizer, and its output is connected with the power input of frequency divider; The pulse signal input terminal of described frequency divider is connected with crystal, and the pulse signal output end of frequency divider is connected with the base stage of the first triode; The base stage of the collector electrode of the first triode and the second triode and the 3rd triode also connects and accesses the builtin voltage of Vehicular system, and the emitter of the first triode and the 3rd collector electrode of triode and one end of filtering capacitor also connect; One end of the emitter of the emitter of the second triode and the 3rd triode and the 3rd capacitor also connects, and the positive pole of the collector electrode of the second triode and the first diode VD1 also connects, and access the builtin voltage of Vehicular system; The positive pole of the negative pole of the first diode, the other end of the 3rd capacitor and the second diode also connects; The negative pole of the second diode is connected with the other end of filtering capacitor, and provides output voltage for controller of current vortex retarder; The first capacitor and the second capacitor series are in the both sides of crystal; The first resistance is arranged between the collector electrode of the first triode and the base stage of the 3rd triode, and the first resistance is connected in series with the second resistance.
Object of the present invention and solve its technical problem and can also be further achieved by the following technical measures.
The switch driving circuit of aforesaid controller of current vortex retarder, wherein said the first triode and the second triode are NPN type triode.
The switch driving circuit of aforesaid controller of current vortex retarder, wherein said the 3rd triode is positive-negative-positive triode.
By technique scheme, the switch driving circuit of controller of current vortex retarder of the present invention at least has following advantages and beneficial effect: switch driving circuit of the present invention is by adopting pressurizer, frequency divider, crystal, triode, diode, the technology maturation such as resistance and capacitor and cheap components and parts, switch driving circuit is had cheap, simple in structure, the features such as good stability and life-span are long, thereby this switch driving circuit can be stablized for a long time and reliably working in controller of current vortex retarder system, and then solve high power module switch control mode and realize and in the high and security reliability of cost, have the problems such as shortcoming.
In sum, the present invention has significant progress technically, and has significantly positive technique effect, becomes a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the switch driving circuit operation principle schematic diagram of controller of current vortex retarder of the present invention;
Fig. 2 is the principle schematic of the voltage-multiplying circuit in switch driving circuit of the present invention.
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of switch driving circuit, structure, feature and effect thereof of the controller of current vortex retarder proposing according to the present invention, be described in detail as follows.
The switch driving circuit of controller of current vortex retarder of the present invention as shown in Figures 1 and 2.
In Fig. 1 and Fig. 2, the switch driving circuit of controller of current vortex retarder mainly comprises: pressurizer N1, frequency divider D1, crystal EC1, three triodes (being VT1, VT2 and VT3) and two diodes (being VD1 and VD2).This switch driving circuit can also comprise: the elements such as multiple resistance (as R1 and R2) and multiple capacitor (as C1, C2, C3 and filtering capacitor C4).Above-mentioned triode VT1 and VT2 can be NPN type triode, and triode VT3 can be positive-negative-positive triode.
The builtin voltage of the input access Vehicular system of pressurizer N1, the output of pressurizer N1 is connected with the power input (being vdd terminal) of frequency divider D1; The pulse signal input terminal of frequency divider D1 is connected respectively with the two ends of crystal EC1, and the pulse signal output end of frequency divider D1 is connected with the base stage of triode VT1; The collector electrode of triode VT1 is connected respectively with the base stage of triode VT2 and VT3 and the builtin voltage of Vehicular system (as the collector electrode of triode VT1 is connected with the base stage of triode VT3 by resistance R 1, and be connected with the builtin voltage of Vehicular system by resistance R 2), the collector electrode of the emitter of triode VT1 and triode VT3 connecing is afterwards connected with one end of filtering capacitor C4; The base stage of triode VT2 and VT3 is also connected with the internal electric source of Vehicular system (as the base stage of triode VT2 accesses the voltage of the internal electric source of Vehicular system by resistance R 2, the base stage of triode VT3 accesses the voltage of the internal electric source of Vehicular system by resistance R 1 and resistance R 2), one end of the emitter of triode VT2 and the emitter of VT3 and capacitor C3 also connects, the positive pole of the collector electrode of triode VT2 and diode VD1 also connects, and access the builtin voltage of Vehicular system; The other end of the positive pole of the negative pole of diode VD1 and diode VD2 and capacitor C3 also connects, and the negative pole of diode VD2 is connected with the other end of filtering capacitor C4, and provides output voltage for controller of current vortex retarder; Capacitor C1 and C2 are serially connected in the both sides of crystal EC1.
As shown in Figure 1, in normal operation, the builtin voltage U1 of Vehicular system enters pressurizer N1, the voltage U 2 after pressurizer N1 output voltage stabilizing, and this voltage U 2 is the input service voltage of frequency divider D1; Frequency divider D1 starts normal work under the effect of U2, the frequency of crystal EC1 carried out after frequency division processing, and output pulse width modulation (PWM) signal, the base stage of triode VT1 presents continuous on off operating mode under the effect of pwm signal (being impulse wave).As shown in Figure 2, in the time that the high level of pwm signal arrives the base stage of triode VT1, triode VT1 is in conducting state, triode VT2(NPN type triode) in cut-off state, builtin voltage U1, according to the direction of the electric current 1 in Fig. 2 diode VD1 that flows through, charges to capacitor C3; In the time that the low level of pwm signal arrives the base stage of triode VT1, triode VT1 is in cut-off, triode VT2 and triode VT3 are in conducting, builtin voltage U1 flows through triode VT2 according to the direction of electric current in Fig. 22 and is applied on the capacitor C3 just having been charged, the magnitude of voltage at capacitor C3 two ends is close to the builtin voltage U1 of twice, the voltage at this capacitor C3 two ends is through after diode VD2 and filtering capacitor C4 filtering, flow to controller of current vortex retarder high power switch module, i.e. voltage U out.
The above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art are not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. a switch driving circuit for controller of current vortex retarder, is characterized in that, comprising: pressurizer, frequency divider, crystal, three triodes, two diodes, two resistance and four capacitors;
The builtin voltage of the input access Vehicular system of described pressurizer, and its output is connected with the power input of frequency divider;
The pulse signal input terminal of described frequency divider is connected with crystal, and the pulse signal output end of frequency divider is connected with the base stage of the first triode;
The base stage of the collector electrode of the first triode and the second triode and the 3rd triode also connects and accesses the builtin voltage of Vehicular system, and the emitter of the first triode and the 3rd collector electrode of triode and one end of filtering capacitor also connect;
One end of the emitter of the emitter of the second triode and the 3rd triode and the 3rd capacitor also connects, and the positive pole of the collector electrode of the second triode and the first diode VD1 also connects, and access the builtin voltage of Vehicular system;
The positive pole of the negative pole of the first diode, the other end of the 3rd capacitor and the second diode also connects;
The negative pole of the second diode is connected with the other end of filtering capacitor, and provides output voltage for controller of current vortex retarder;
The first capacitor and the second capacitor series are in the both sides of crystal;
The first resistance is arranged between the collector electrode of the first triode and the base stage of the 3rd triode, and the first resistance is connected in series with the second resistance.
2. the switch driving circuit of controller of current vortex retarder according to claim 1, is characterized in that, described the first triode and the second triode are NPN type triode.
3. the switch driving circuit of controller of current vortex retarder according to claim 1, is characterized in that, described the 3rd triode is positive-negative-positive triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210486594.2A CN103840730A (en) | 2012-11-26 | 2012-11-26 | Switch drive circuit of eddy current retarder controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210486594.2A CN103840730A (en) | 2012-11-26 | 2012-11-26 | Switch drive circuit of eddy current retarder controller |
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| Publication Number | Publication Date |
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| CN103840730A true CN103840730A (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210486594.2A Pending CN103840730A (en) | 2012-11-26 | 2012-11-26 | Switch drive circuit of eddy current retarder controller |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1098900A (en) * | 1996-09-19 | 1998-04-14 | Sawafuji Electric Co Ltd | Exciter built-in |
| CN201004615Y (en) * | 2007-01-12 | 2008-01-09 | 长春市萨瑞斯电子有限公司 | Power driver of buffer controller |
| CN201656773U (en) * | 2010-03-02 | 2010-11-24 | 南京亚派科技实业有限公司 | High-voltage frequency converter drive circuit |
| CN201729155U (en) * | 2010-04-10 | 2011-02-02 | 杨效军 | Eddy current retarder driving controller |
| CN201854184U (en) * | 2010-11-19 | 2011-06-01 | 东莞市奥源电子科技有限公司 | Buck circuit |
| CN202978806U (en) * | 2012-11-26 | 2013-06-05 | 凯迈(洛阳)电子有限公司 | Switch drive circuit for eddy current retarder controller |
-
2012
- 2012-11-26 CN CN201210486594.2A patent/CN103840730A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1098900A (en) * | 1996-09-19 | 1998-04-14 | Sawafuji Electric Co Ltd | Exciter built-in |
| CN201004615Y (en) * | 2007-01-12 | 2008-01-09 | 长春市萨瑞斯电子有限公司 | Power driver of buffer controller |
| CN201656773U (en) * | 2010-03-02 | 2010-11-24 | 南京亚派科技实业有限公司 | High-voltage frequency converter drive circuit |
| CN201729155U (en) * | 2010-04-10 | 2011-02-02 | 杨效军 | Eddy current retarder driving controller |
| CN201854184U (en) * | 2010-11-19 | 2011-06-01 | 东莞市奥源电子科技有限公司 | Buck circuit |
| CN202978806U (en) * | 2012-11-26 | 2013-06-05 | 凯迈(洛阳)电子有限公司 | Switch drive circuit for eddy current retarder controller |
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Application publication date: 20140604 |