CN202872708U - Controller of direct current brushless motor used for vehicle - Google Patents
Controller of direct current brushless motor used for vehicle Download PDFInfo
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- CN202872708U CN202872708U CN2012203741473U CN201220374147U CN202872708U CN 202872708 U CN202872708 U CN 202872708U CN 2012203741473 U CN2012203741473 U CN 2012203741473U CN 201220374147 U CN201220374147 U CN 201220374147U CN 202872708 U CN202872708 U CN 202872708U
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Abstract
The utility model discloses a controller of a direct current brushless motor used for a vehicle. The controller comprises a power supply unit, a three-phase half-bridge driving unit and a three-phase half-bridge inversion unit. The power supply unit is connected with the three-phase half-bridge inversion unit via an EMI filter and is also connected with the three-phase half-bridge driving unit. A PWM driving signal input end of the three-phase half-bridge driving unit serves as a control input end of the controller and is connected with an external PWM driving signal end. A PWM driving signal output end of the three-phase half-bridge driving unit is connected with a control signal input end of the three-phase half-bridge inversion unit. An output end of the three-phase half-bridge inversion unit serves as an output end of the controller and is connected with a three phase of the external direct current brushless motor used for the vehicle. According to the controller of the direct current brushless motor used for the vehicle, a design of a circuit is simplified, the amount of devices is minimized, an application scope is expanded, and production costs are lowered, so that the controller can be favorably popularized in a wide area and exhibits good application prospects.
Description
Technical field
The utility model relates to a kind of motor driver, particularly relates to a kind of controller that is applicable to the automobile-used dc brushless motor of air conditioner blower in the vehicle, cooling fan of engine, oil pump/water pump control motor.
Background technology
For the used actuating motor of each control system in the vehicle, the direct current machines that adopt more, can have good startup by Guarantee control system, braking ability, and stepless speed control in realizing on a large scale, compare brush direct current motor, dc brushless motor need not brush and commutates, but use the Electronic Control realization to commutate, has higher rotary speed-torque characteristic, the wider range of speeds, dynamic response is fast faster, energy-efficient, long service life, the characteristics such as noise is little, and present stage, the controller of dc brushless motor, complex circuit designs, cost is higher, compare the controller of dc brushless motor, the controller of brush direct current motor, simplicity of design, with low cost, be easy to realize, so, adopting more than in numerous ripe automobiles has the brushless motor controller, and the utilization rate of DC brushless controller is also considerably less, can't be applied widely.
This shows that the controller of above-mentioned existing dc brushless motor obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.The problem that exists for the controller that solves dc brushless motor, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but have no for a long time applicable design is finished by development always, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious wish of relevant dealer solves.
Because the defective that the controller of above-mentioned existing dc brushless motor exists, the utility model people is based on being engaged in for many years abundant practical experience and professional knowledge of this type of product design manufacturing, and the utilization of cooperation scientific principle, positive research and innovation in addition, controller in the hope of the automobile-used dc brushless motor of founding a kind of new structure, can improve the controller of general existing dc brushless motor, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improvement, finally create the utility model that has practical value.
The utility model content
Main purpose of the present utility model is, overcome the defective of the controller existence of existing dc brushless motor, and provide a kind of controller of automobile-used dc brushless motor of new structure, technical problem to be solved is to make it simplify circuit design, reduce the device consumption, increased the scope of application, effectively reduced its production cost, have a good application prospect, be conducive to the extensive popularization of automobile-used DC brushless controller.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.A kind of for 12V or the 34V controller with the automobile-used dc brushless motor of interior low pressure according to what the utility model proposes, it is characterized in that: this controller comprises power supply unit, three-phase half bridge drive unit and three-phase semi-bridge inversion unit, the output of described power supply unit is connected with the electrical input that supplies of described three-phase semi-bridge inversion unit by the EMI filter, also is connected with the electrical input that supplies of three-phase half bridge drive unit; The PWM driving signal input of described three-phase half bridge drive unit drives signal end with the PWM of outside and is connected as the control input end of controller; The PWM of described three-phase half bridge drive unit drives signal output part and is connected with the control signal input of described three-phase semi-bridge inversion unit, the output of described three-phase semi-bridge inversion unit is as the output of controller, is connected with the three-phase of the automobile-used dc brushless motor of outside.The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: described power supply unit comprises the first capacitor C 1 and counnter attack diode D1, the input of described power supply unit is by the first capacitor C 1 ground connection, also the positive pole with counnter attack diode D1 is connected, the negative pole of described counnter attack diode D1 is as the output of described power supply unit, and described the first capacitor C 1 is safety electric capacity.
The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: described electromagnetic interface filter comprises differential mode inductance L1, the first Support Capacitor C2 and the second Support Capacitor C3, the end of described differential mode inductance L1 is connected with the output port of power supply unit as the input of electromagnetic interface filter, the other end of described differential mode inductance L1 is parallel with the first Support Capacitor C2 and the second Support Capacitor C3, and as the input of electromagnetic interface filter and being connected for electrical input of described three-phase semi-bridge inversion unit.
The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: described three-phase half bridge drive unit is provided with six road PWM driving signal input, also comprise on three the tunnel brachium pontis drive circuit under the brachium pontis drive circuit and three tunnel, wherein three road PWM driving signal input drive signal by the PWM that brachium pontis drive circuit on three tunnel is exported brachium pontis drive circuit on three tunnel respectively, and three road PWM driving signal input drive signal by the PWM that brachium pontis drive circuit under three tunnel is exported brachium pontis drive circuit under three tunnel respectively in addition.
The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: the brachium pontis drive circuit is the open collector gate circuit on described three the tunnel, include a pull-up resistor, one first drives resistance and a NPN type triode, the base stage of a described NPN type triode is as one road PWM driving signal input, the collector electrode of a described NPN type triode is connected with the output of described power supply unit by pull-up resistor, the collector electrode of a described NPN type triode also drives resistance as the PWM driving signal output part of upper brachium pontis drive circuit, the grounded emitter of a described NPN type triode by first.
The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: the brachium pontis drive circuit is push-pull circuit under described three the tunnel, include second and drive resistance and the first positive-negative-positive triode and the 2nd NPN type triode, described the first positive-negative-positive triode is connected with the 2nd NPN type transistor base, as one road PWM driving signal input; The collector electrode of described the 2nd NPN type triode is connected with the collector electrode of the first positive-negative-positive triode, and by the PWM driving signal output part of the second driving resistance as lower brachium pontis drive circuit, the emitter of described the first positive-negative-positive triode is connected with the output of described power supply unit, the grounded emitter of described the 2nd NPN type triode.
The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: described three-phase semi-bridge inversion unit is corresponding with described three-phase half bridge drive unit, be provided with six tunnel control signal inputs, comprise on three the tunnel brachium pontis control circuit under the brachium pontis control circuit and three tunnel, wherein three tunnel control signal inputs are that the PWM of brachium pontis drive circuit on the input and described three tunnel of brachium pontis control circuit on three tunnel drives signal output part and is connected, in addition three tunnel control signal inputs are that the PWM of brachium pontis drive circuit drives signal output part and is connected under the input and described three tunnel of brachium pontis control circuit under three tunnel, and described three-phase semi-bridge inversion unit also is provided with three road outputs and is connected with the three-phase of the automobile-used dc brushless motor of outside.The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: the brachium pontis control circuit includes a P type power transistor on described three the tunnel, the PWM of brachium pontis drive circuit driving signal output part is connected on the grid and described three tunnel of described P type power transistor, and the drain electrode of described P type power transistor is connected with the output of described power supply unit; The brachium pontis control circuit includes a N-type power transistor under described three the tunnel, the PWM of brachium pontis drive circuit driving signal output part is connected under the grid of described N-type power transistor and described three tunnel, also be provided with biasing resistor between the drain and gate of described N-type power transistor, the source electrode of described N-type power transistor be connected the source electrode of P type power transistor and jointly connect, be connected with outside automobile-used dc brushless motor as the output of controller as the output of described three-phase semi-bridge inversion unit.
For the automobile-used dc brushless motor of the high pressure more than the 34V, circuit and 12V or 34V are general with the automobile-used dc brushless motor of interior low pressure, need increase high speed photo coupling and step-down isolation power supply that it is isolated,
The controller of aforesaid a kind of automobile-used dc brushless motor, it is characterized in that: this controller also comprises power supply isolated location and electromagnetic interface filter isolation optical coupler, described power supply isolated location is arranged on the input of power supply unit and electromagnetic interface filter and the confession electrical input connection of three-phase half bridge drive unit, and the described isolation optical coupler of electromagnetic interface filter is arranged on the PWM driving signal output part of three-phase half bridge drive unit and the control signal input connection of described three-phase semi-bridge inversion unit.
Electromagnetic interface filter electromagnetic interface filter electromagnetic interface filter is by technique scheme, and the controller of the automobile-used dc brushless motor of the utility model has following advantages at least:
1) power supply unit of the present utility model is provided with the counnter attack diode design, has simplified the anti-revertive control to the control power supply, makes circuit design simple, also effectively reduces production cost;
2) the upper brachium pontis control circuit of three-phase semi-bridge inversion of the present utility model unit adopts positive-negative-positive power transistor or P channel MOS tube, lower brachium pontis control circuit adopts power npn transistor or N-channel MOS pipe, produce the control signal that outside automobile-used dc brushless motor is used, and upper and lower brachium pontis drive circuit all supplies ground, and upper brachium pontis drive circuit adopts the OC gate circuit to drive; Lower brachium pontis drive circuit adopts push-pull circuit to drive, and can carry out circuit design according to the concrete model of power tube or metal-oxide-semiconductor and the switching frequency of actual power pipe according to the selection principle that drives resistance, satisfy opening or the turn-off speed requirement of different dc brushless motors;
3) the utility model not only satisfies 12V or 34V and uses with the driving control of the interior automobile-used dc brushless motor of low pressure, also provides for the driving control of high voltage direct current brushless electric machine higher more than the 34V and has used, and the scope of application is large, has a good application prospect.
In sum, the controller of the automobile-used dc brushless motor of the utility model special construction has been simplified circuit design, has reduced the device consumption, has increased the scope of application, effectively reduces its production cost.It has above-mentioned many advantages and practical value, and in like product, publish or use and really genus innovation there are no similar structural design, no matter it structurally or larger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and the controller of more existing dc brushless motor has the multinomial effect of enhancement, thus more be suitable for practicality, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and cooperate accompanying drawing to be described in detail as follows.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the system block diagram that is applicable to the controller of the automobile-used dc brushless motor of low pressure of the present utility model.
Fig. 2 is the circuit diagram that is applicable to the controller of the automobile-used dc brushless motor of low pressure of the present utility model.
Fig. 3 is the system block diagram that is applicable to the controller of the automobile-used dc brushless motor of high pressure of the present utility model.
Fig. 4 is the circuit diagram that is applicable to the controller of the automobile-used dc brushless motor of high pressure of the present utility model.
Embodiment
Be to reach technological means and the effect that predetermined utility model purpose is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of controller, structure, feature and effect thereof to according to the automobile-used dc brushless motor that the utility model proposes are described in detail as follows.
As shown in Figure 1, for 12V or the 34V controller with the interior automobile-used dc brushless motor of low pressure, comprise power supply unit, three-phase half bridge drive unit and three-phase semi-bridge inversion unit, power supply unit is used for providing the work power supply to other unit of this controller, the PWM that the three-phase half bridge drive unit is used for the automobile-used dc brushless motor of external control drives signal, and PWM is driven signal send three-phase semi-bridge inversion unit to, three-phase semi-bridge inversion unit is used for the rotation that the output control signal is controlled automobile-used dc brushless motor, the output of power supply unit is connected with the electrical input that supplies of three-phase semi-bridge inversion unit by electromagnetic interface filter, also be connected with the electrical input that supplies of three-phase half bridge drive unit, electromagnetic interface filter is used for the various interference signals of filtering input power supply, guarantees the stability to the input power supply of three-phase semi-bridge inversion unit; The PWM driving signal input of three-phase half bridge drive unit drives signal end with the PWM of outside and is connected as the control input end of controller; The PWM of described three-phase half bridge drive unit drives signal output part and is connected with the control signal input of described three-phase semi-bridge inversion unit, the output of described three-phase semi-bridge inversion unit is as the output of controller, be connected with the automobile-used dc brushless motor of outside, the controller control 12V of the automobile-used dc brushless motor here or 34V are with interior dc brushless motor, adopt three-phase semi-bridge inversion unit and three-phase half bridge drive unit altogether, need not to increase the buffer circuit design, simplified circuit design, reduce product cost, small product size is little, satisfies automobile-used DC brushless motor controller to the requirement of volume.
As shown in Figure 2; described power supply unit comprises the first capacitor C 1 and counnter attack diode D1; the input of described power supply unit is by the first capacitor C 1 ground connection; also the positive pole with counnter attack diode D1 is connected; the negative pole of counnter attack diode D1 is as the output of described power supply unit; counnter attack diode D1 is used for connecing inverse time when power supply power supply Vbat is positive and negative, protects other circuit not to be damaged, and wherein the first capacitor C 1 is the safety electric capacity of X-type.
Described electromagnetic interface filter comprises differential mode inductance L1, the first Support Capacitor C2 and the second Support Capacitor C3, the end of described differential mode inductance L1 is connected with the output port of power supply unit as the input of electromagnetic interface filter, the other end of described differential mode inductance L1 is parallel with the first Support Capacitor C2 and the second Support Capacitor C3, and as the input of electromagnetic interface filter and being connected for electrical input of described three-phase semi-bridge inversion unit.
Described three-phase half bridge drive unit is provided with six road PWM driving signal input, because automobile-used dc brushless motor is three phase controls, therefore be provided with six road PWM driving signal input, brachium pontis drive circuit under the brachium pontis drive circuit and three tunnel on three tunnel, wherein three road PWM driving signal input drive signal by the PWM that brachium pontis drive circuit on three tunnel is exported brachium pontis drive circuit on three tunnel respectively, in addition three road PWM driving signal input drive signal by the PWM that brachium pontis drive circuit under three tunnel is exported brachium pontis drive circuit under three tunnel respectively, adopt on three the tunnel that the brachium pontis drive circuit carries out the driving that road PWM drives signal under the brachium pontis drive circuit and three tunnel, the drive circuit simplicity of design, realize easily, and security reliability is high.
The brachium pontis drive circuit is the open collector gate circuit on described three the tunnel, the circuit design of brachium pontis drive circuit is all identical on three the tunnel, here take brachium pontis drive circuit on the way as example, comprise a pull-up resistor R5, one first drives resistance R 11 and a NPN type triode Q4, the base stage of the one NPN type triode Q4 is the PWM driving signal input PWMAT of brachium pontis drive circuit on the way, the collector electrode of the one NPN type triode Q4 is connected with the output of power supply unit by pull-up resistor R5, the collector electrode of the one NPN type triode Q4 also drives resistance R 11 as the PWM driving signal output part AT of upper brachium pontis drive circuit by first, the grounded emitter of the one NPN type triode Q4, wherein, the first resistance that drives resistance R 11 has determined to be arranged on the speed of opening of the corresponding road metal-oxide-semiconductor in the three-phase semi-bridge inversion unit, resistance is less, it is faster to open speed, pull-up resistor R5 drives the turn-off speed that resistance R 11 has determined to be arranged on the corresponding road metal-oxide-semiconductor in the three-phase semi-bridge inversion unit jointly with first, the resistance summation is less, turn-off speed is faster, the selection principle of the resistance is here chosen according to the concrete model of the metal-oxide-semiconductor of selecting and the switching frequency design of actual power pipe, simplicity of design, realize easily, the design of brachium pontis drive circuit is identical on other the two-way, just do not do here and do not repeat to repeat.
The brachium pontis drive circuit is exempted from circuit for pushing away under described three the tunnel, the circuit design of brachium pontis drive circuit is all identical under three the tunnel, here under one the tunnel brachium pontis drive circuit as example, comprise that second drives resistance R 8 and the first positive-negative-positive triode Q1 and the 2nd NPN type triode Q7, the first positive-negative-positive triode Q1 is connected with the 2nd NPN type triode Q7 base stage, PWM driving signal input PWMAB as brachium pontis drive circuit under this road, the collector electrode of the 2nd NPN type triode Q7 is connected with the collector electrode of the first positive-negative-positive triode Q1, and by the PWM driving signal output part AB of the second driving resistance R 8 as brachium pontis drive circuit under this road, the emitter of the first positive-negative-positive triode Q1 is connected with the output of power supply unit, the grounded emitter of the 2nd NPN type triode Q7, wherein 8 effects of the second driving resistance R are the same with the first driving resistance R 8, resistance has determined to be arranged on the speed of opening of the corresponding road metal-oxide-semiconductor in the three-phase semi-bridge inversion unit, resistance is less, it is faster to open speed, the design of brachium pontis drive circuit is identical under other the two-way, just do not do here and do not repeat to repeat.
Described three-phase semi-bridge inversion unit is corresponding with described three-phase half bridge drive unit, be provided with six tunnel control signal inputs, comprise on three the tunnel brachium pontis control circuit under the brachium pontis control circuit and three tunnel, wherein three tunnel control signal inputs are that the PWM of brachium pontis drive circuit on the input and described three tunnel of brachium pontis control circuit on three tunnel drives signal output part and is connected, in addition three tunnel control signal inputs are that the PWM of brachium pontis drive circuit drives signal output part and is connected under the input and described three tunnel of brachium pontis control circuit under three tunnel, and described three-phase semi-bridge inversion unit also is provided with three road outputs and is connected with the automobile-used dc brushless motor of outside.
The circuit design of brachium pontis control circuit is all identical on described three the tunnel, here take brachium pontis control circuit on the way as example, comprise a P type power transistor T1(here also optional P channel MOS tube or P channel junction pipe), the grid of P type power transistor T1 drives signal output part AT with the PWM of corresponding upper brachium pontis drive circuit and is connected, the drain electrode of P type power transistor T1 is connected with the output of power supply unit, the design of brachium pontis control circuit is all identical under three the tunnel, here under one the tunnel brachium pontis control circuit as example, comprise a N-type power transistor T4(here also optional N-channel MOS pipe or N channel junction pipe), the grid of N-type power transistor T4 drives signal output part AB with the PWM of corresponding lower brachium pontis drive circuit and is connected, also be provided with biasing resistor R1 between the drain and gate of N-type power transistor T4, the source electrode of N-type power transistor T4 is connected source electrode and is jointly connected with P type power transistor T1, be connected as the A phase control end that one tunnel control output end of controller is connected with outside automobile-used dc brushless motor as the control signal output of described three-phase semi-bridge inversion unit, other B, the two-way control output end of the automobile-used dc brushless motor of C two-phase outside, identical with the circuit design of above-mentioned A phase control end, just do not do here and do not repeat to repeat.
As shown in Figure 3, in order to solve the problems of the technologies described above, for the automobile-used dc brushless motor of the high pressure more than the 34V, circuit and 12V or 34V are general with the automobile-used dc brushless motor of interior low pressure, need increase high speed photo coupling and step-down isolation power supply that it is isolated, solution is as follows: this controller also comprises power supply isolated location and isolation optical coupler, described power supply isolated location is arranged on the input of power supply unit and electromagnetic interface filter and the confession electrical input connection of three-phase half bridge drive unit, and described isolation optical coupler is arranged on the PWM driving signal output part of three-phase half bridge drive unit and the control signal input connection of described three-phase semi-bridge inversion unit.
As shown in Figure 4, only with brachium pontis drive circuit on three tunnel in the three-phase half bridge drive unit, the similar design of brachium pontis drive circuit circuit design under three tunnel, described power supply isolated location is the isolation power supply, be positioned at the front end of electromagnetic interface filter, the isolation optical coupler is the high-speed isolated optical coupler, take No. one drive circuit as example, the PWM that high-speed isolated optical coupler U1A arranges the three-phase half bridge drive unit drives between the control signal input of signal output part and three-phase semi-bridge inversion unit, can make PWM drive signal end PWMAT and the isolation of control signal output terminals A T two ends, reduce by two groups of interference between signal, guarantee the reliability of the running of the automobile-used dc brushless motor of high pressure that 34V is above.
The technological innovation of the controller of the automobile-used dc brushless motor of the utility model that above-mentioned structure like this consists of all has many saving graces for technical staff of the same trade now, and the progressive that really possesses skills.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. the controller of an automobile-used dc brushless motor, it is characterized in that: this controller comprises power supply unit, three-phase half bridge drive unit and three-phase semi-bridge inversion unit, the output of described power supply unit is connected with the electrical input that supplies of described three-phase semi-bridge inversion unit by electromagnetic interface filter, also is connected with the electrical input that supplies of three-phase half bridge drive unit; The PWM driving signal input of described three-phase half bridge drive unit drives signal end with the PWM of outside and is connected as the control input end of controller; The PWM of described three-phase half bridge drive unit drives signal output part and is connected with the control signal input of described three-phase semi-bridge inversion unit, the output of described three-phase semi-bridge inversion unit is as the output of controller, is connected with the three-phase of the automobile-used dc brushless motor of outside.
2. the controller of a kind of automobile-used dc brushless motor according to claim 1, it is characterized in that: described power supply unit comprises the first capacitor C 1 and counnter attack diode D1, the input of described power supply unit is by the first capacitor C 1 ground connection, also the positive pole with counnter attack diode D1 is connected, the negative pole of described counnter attack diode D1 is as the output of described power supply unit, and described the first capacitor C 1 is safety electric capacity.
3. the controller of a kind of automobile-used dc brushless motor according to claim 1, it is characterized in that: described electromagnetic interface filter comprises differential mode inductance L1, the first Support Capacitor C2 and the second Support Capacitor C3, the end of described differential mode inductance L1 is connected with the output port of power supply unit as the input of electromagnetic interface filter, the other end of described differential mode inductance L1 is parallel with the first Support Capacitor C2 and the second Support Capacitor C3, and as the input of electromagnetic interface filter and being connected for electrical input of described three-phase semi-bridge inversion unit.
4. the controller of a kind of automobile-used dc brushless motor according to claim 1, it is characterized in that: described three-phase half bridge drive unit is provided with six road PWM driving signal input, also comprise on three the tunnel brachium pontis drive circuit under the brachium pontis drive circuit and three tunnel, wherein three road PWM driving signal input drive signal by the PWM that brachium pontis drive circuit on three tunnel is exported brachium pontis drive circuit on three tunnel respectively, and three road PWM driving signal input drive signal by the PWM that brachium pontis drive circuit under three tunnel is exported brachium pontis drive circuit under three tunnel respectively in addition.
5. the controller of a kind of automobile-used dc brushless motor according to claim 4, it is characterized in that: the brachium pontis drive circuit is the open collector gate circuit on described three the tunnel, include a pull-up resistor, one first drives resistance and a NPN type triode, the base stage of a described NPN type triode is as one road PWM driving signal input, the collector electrode of a described NPN type triode is connected with the output of described power supply unit by pull-up resistor, the collector electrode of a described NPN type triode also drives resistance as the PWM driving signal output part of upper brachium pontis drive circuit, the grounded emitter of a described NPN type triode by first.
6. the controller of a kind of automobile-used dc brushless motor according to claim 4, it is characterized in that: the brachium pontis drive circuit is push-pull circuit under described three the tunnel, include second and drive resistance and the first positive-negative-positive triode and the 2nd NPN type triode, described the first positive-negative-positive triode is connected with the 2nd NPN type transistor base, as one road PWM driving signal input; The collector electrode of described the 2nd NPN type triode is connected with the collector electrode of the first positive-negative-positive triode, and by the PWM driving signal output part of the second driving resistance as lower brachium pontis drive circuit, the emitter of described the first positive-negative-positive triode is connected with the output of described power supply unit, the grounded emitter of described the 2nd NPN type triode.
7. the controller of a kind of automobile-used dc brushless motor according to claim 1, it is characterized in that: described three-phase semi-bridge inversion unit is corresponding with described three-phase half bridge drive unit, be provided with six tunnel control signal inputs, comprise on three the tunnel brachium pontis control circuit under the brachium pontis control circuit and three tunnel, wherein three tunnel control signal inputs are that the PWM of brachium pontis drive circuit on the input and described three tunnel of brachium pontis control circuit on three tunnel drives signal output part and is connected, in addition three tunnel control signal inputs are that the PWM of brachium pontis drive circuit drives signal output part and is connected under the input and described three tunnel of brachium pontis control circuit under three tunnel, and described three-phase semi-bridge inversion unit also is provided with three road outputs and is connected with the three-phase of the automobile-used dc brushless motor of outside.
8. the controller of a kind of automobile-used dc brushless motor according to claim 7, it is characterized in that: the brachium pontis control circuit includes a P type power transistor on described three the tunnel, the PWM of brachium pontis drive circuit driving signal output part is connected on the grid and described three tunnel of described P type power transistor, and the drain electrode of described P type power transistor is connected with the output of described power supply unit; The brachium pontis control circuit includes a N-type power transistor under described three the tunnel, the PWM of brachium pontis drive circuit driving signal output part is connected under the grid of described N-type power transistor and described three tunnel, also be provided with biasing resistor between the drain and gate of described N-type power transistor, the source electrode of described N-type power transistor be connected the source electrode of P type power transistor and jointly connect, be connected with outside automobile-used dc brushless motor as the output of controller as the output of described three-phase semi-bridge inversion unit.
9. the controller of a kind of automobile-used dc brushless motor according to claim 1, it is characterized in that: this controller also comprises power supply isolated location and electromagnetic interface filter isolation optical coupler, described power supply isolated location is arranged on the input of power supply unit and electromagnetic interface filter and the confession electrical input connection of three-phase half bridge drive unit, and the described isolation optical coupler of electromagnetic interface filter is arranged on the PWM driving signal output part of three-phase half bridge drive unit and the control signal input connection of described three-phase semi-bridge inversion unit.
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| CN2012203741473U CN202872708U (en) | 2012-07-31 | 2012-07-31 | Controller of direct current brushless motor used for vehicle |
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| CN2012203741473U CN202872708U (en) | 2012-07-31 | 2012-07-31 | Controller of direct current brushless motor used for vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751926A (en) * | 2012-07-31 | 2012-10-24 | 江苏浩峰汽车附件有限公司 | Controller of brushless DC (direct current) motor for vehicle |
| CN112737425A (en) * | 2020-12-25 | 2021-04-30 | 兰州飞行控制有限责任公司 | Direct current brushless motor drive circuit based on CPLD control |
| CN113359616A (en) * | 2021-07-12 | 2021-09-07 | 深钛智能科技(苏州)有限公司 | Motion control system |
-
2012
- 2012-07-31 CN CN2012203741473U patent/CN202872708U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751926A (en) * | 2012-07-31 | 2012-10-24 | 江苏浩峰汽车附件有限公司 | Controller of brushless DC (direct current) motor for vehicle |
| CN102751926B (en) * | 2012-07-31 | 2014-11-05 | 江苏浩峰汽车附件有限公司 | Controller of brushless DC (direct current) motor for vehicle |
| CN112737425A (en) * | 2020-12-25 | 2021-04-30 | 兰州飞行控制有限责任公司 | Direct current brushless motor drive circuit based on CPLD control |
| CN113359616A (en) * | 2021-07-12 | 2021-09-07 | 深钛智能科技(苏州)有限公司 | Motion control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
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| CX01 | Expiry of patent term |