CN102664575A - Three-phase half-wave brushless direct-current motor controller with reverse connection protection function - Google Patents
Three-phase half-wave brushless direct-current motor controller with reverse connection protection function Download PDFInfo
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- CN102664575A CN102664575A CN2012101433256A CN201210143325A CN102664575A CN 102664575 A CN102664575 A CN 102664575A CN 2012101433256 A CN2012101433256 A CN 2012101433256A CN 201210143325 A CN201210143325 A CN 201210143325A CN 102664575 A CN102664575 A CN 102664575A
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Abstract
The invention discloses a three-phase half-wave brushless direct-current motor controller with a reverse connection protection function. The three-phase half-wave brushless direct-current motor controller comprises a brushless direct-current motor, a rotor position detection circuit, a micro controller, a power device driving circuit, a three-phase half-wave inverter, a follow current control circuit and a reverse connection protection circuit. The three-phase half-wave brushless direct-current motor controller with the reverse connection protection function provided by the invention can provide favorable follow current access for energy storage of a brushless direct-current motor winding when an inverter power switch device is powered off through the design of a follow current control circuit, and effectively prevents the problem of electromagnetic interference caused by higher induction electric potential; and through the design of the reverse connection protection circuit of a power supply, the high-current fault caused by reverse connection of the power supply polarity can be prevented.
Description
Technical field
The present invention relates to a kind of motor control assembly, relate in particular to a kind of three-phase semiwave brushless direct current motor controller with reverse connecting protection function.
Background technology
Adopt the brshless DC motor system of three-phase semiwave topological structure, it is simple to have a control system major loop structure, and reliability is high, does not have advantages such as shoot through fault, is highly suitable for the industrial applications that system reliability is had relatively high expectations.Yet traditional three-phase semiwave brshless DC motor system can produce higher winding inductance electromotive force when device for power switching turn-offs, be prone to cause comparatively serious electromagnetic interference problem.And conventional brshless DC motor system does not possess power supply reverse connecting protection function, therefore in case when error-polarity connection of power supply took place, power supply can form path through device for power switching inner counter parallel connection fly-wheel diode, produces big electric current, threatens system safety.
Summary of the invention
The object of the invention in order to solve the problem that above-mentioned prior art exists, provides a kind of three-phase semiwave brushless direct current motor controller with reverse connecting protection function exactly, can accelerate the speed that connects.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of three-phase semiwave brushless direct current motor controller with reverse connecting protection function links to each other with positive source, power cathode; Comprise brshless DC motor, rotor position detection circuit, microcontroller, power device drive circuit, three-phase semiwave inverter, afterflow control circuit and reverse-connection protection circuit; The input of rotor position detection circuit is connected brshless DC motor, and output connects microcontroller; The output of microcontroller connects the power device drive circuit; The output of power device drive circuit connects the three-phase semiwave inverter; The three-phase semiwave inverter comprises the device for power switching of three parallel connections, three device for power switching respectively with the three-phase windings in series of brshless DC motor; The afterflow control circuit comprises three sub-circuit, three sub-circuit respectively with the three-phase windings in series of brshless DC motor; The input of reverse-connection protection circuit connects the three-phase semiwave inverter, and output connects power cathode.
Three device for power switching in the described three-phase semiwave inverter are three triodes.
Three sub-circuit in the described afterflow control circuit are made up of a triode and a diode series connection respectively.
Described reverse-connection protection circuit is the reverse connecting protection diode circuit.
The present invention has the three-phase semiwave brushless direct current motor controller of reverse connecting protection function through special freewheeling circuit design; Can be that the energy storage of brshless DC motor winding provides good afterflow path when the inverter power switching device turn-offs, effectively avoid because the electromagnetic interference problem that higher induced potential causes.Simultaneously, this controller has power supply reverse connecting protection function, can avoid because the big current failure that error-polarity connection of power supply causes.
Description of drawings
Fig. 1 is the overall structure sketch map that the present invention has the three-phase semiwave brushless direct current motor controller of reverse connecting protection function.
Embodiment
Referring to Fig. 1, the three-phase semiwave brushless direct current motor controller with reverse connecting protection function of the present invention links to each other with positive source, power cathode; Comprise brshless DC motor 1, rotor position detection circuit 2, microcontroller 7, power device drive circuit 6, three-phase semiwave inverter 4, afterflow control circuit 3 and reverse-connection protection circuit 5.The input of rotor position detection circuit 2 is connected brshless DC motor 1, and output connects microcontroller 7; 7 outputs of microcontroller connect power device drive circuit 6; The output of power device drive circuit 6 connects three-phase semiwave inverter 4; Three-phase semiwave inverter 4 comprises the device for power switching of three parallel connections, three device for power switching respectively with the three-phase windings in series of brshless DC motor; Three device for power switching among the present invention are three triode T 4, T5, T6; Wherein, Triode T4 connects with the A phase winding of brshless DC motor, and triode T5 connects with the B phase winding of brshless DC motor, and triode T6 connects with the C phase winding of brshless DC motor.Afterflow control circuit 3 comprises three sub-circuit, three sub-circuit respectively with the three-phase windings in series of brshless DC motor; Three sub-circuit are made up of a triode and a diode series connection respectively.Wherein, triode T1 and diode D1 connect with the A phase winding of brshless DC motor, and triode T2 and diode D2 connect with the B phase winding of brshless DC motor, and triode T3 and diode D3 connect with the C phase winding of brshless DC motor.The input of reverse-connection protection circuit 5 connects three-phase semiwave inverter 4, and output connects power cathode.Reverse-connection protection circuit among the present invention is reverse connecting protection diode circuit D4.
Operation principle of the present invention and function thereof are:
1, when the DC power supply both positive and negative polarity correctly is connected to controller, microcontroller is according to three-phase semiwave control algolithm output three-phase inverter device for power switching control signal.This signal exports three-phase inverter device for power switching gate pole to and is used to control each phase winding conducting phase sequence of motor and carries out pulse-width modulation after the power device drive circuit amplifies.
2, when the device for power switching conducting, power supply will be through motor windings, inverter power switching device that is connected with this motor windings and power supply reverse connecting protection diode formation work loop.When device for power switching turn-offs, the energy that is stored in the motor windings will carry out afterflow through the release loop that motor windings and corresponding afterflow control circuit constitute.
3, when DC power supply generation error-polarity connection since power supply reverse connecting protection diode reverse connect can not conducting, make electric current can't form the loop, thereby played the effect of protection controller.Above-mentioned freewheeling circuit design and power supply reverse connecting protection method are equally applicable to DC MOTOR CONTROL.
Claims (4)
1. the three-phase semiwave brushless direct current motor controller with reverse connecting protection function links to each other with positive source, power cathode; It is characterized in that: comprise brshless DC motor, rotor position detection circuit, microcontroller, power device drive circuit, three-phase semiwave inverter, afterflow control circuit and reverse-connection protection circuit; The input of rotor position detection circuit is connected brshless DC motor, and output connects microcontroller; The output of microcontroller connects the power device drive circuit; The output of power device drive circuit connects the three-phase semiwave inverter; The three-phase semiwave inverter comprises the device for power switching of three parallel connections, three device for power switching respectively with the three-phase windings in series of brshless DC motor; The afterflow control circuit comprises three sub-circuit, three sub-circuit respectively with the three-phase windings in series of brshless DC motor; The input of reverse-connection protection circuit connects the three-phase semiwave inverter, and output connects power cathode.
2. the three-phase semiwave brushless direct current motor controller with reverse connecting protection function according to claim 1 is characterized in that: three device for power switching in the described three-phase semiwave inverter are three triodes.
3. the three-phase semiwave brushless direct current motor controller with reverse connecting protection function according to claim 1 is characterized in that: three sub-circuit in the described afterflow control circuit are made up of a triode and a diode series connection respectively.
4. the three-phase semiwave brushless direct current motor controller with reverse connecting protection function according to claim 1 is characterized in that: described reverse-connection protection circuit is the reverse connecting protection diode circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101433256A CN102664575A (en) | 2012-05-09 | 2012-05-09 | Three-phase half-wave brushless direct-current motor controller with reverse connection protection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101433256A CN102664575A (en) | 2012-05-09 | 2012-05-09 | Three-phase half-wave brushless direct-current motor controller with reverse connection protection function |
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| CN102664575A true CN102664575A (en) | 2012-09-12 |
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| CN2012101433256A Pending CN102664575A (en) | 2012-05-09 | 2012-05-09 | Three-phase half-wave brushless direct-current motor controller with reverse connection protection function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236813A (en) * | 2013-04-23 | 2013-08-07 | 浙江大学 | Control system of permanent magnet brushless direct current motor |
| CN109831130A (en) * | 2019-02-28 | 2019-05-31 | 广东美的厨房电器制造有限公司 | Forward direction is driven in the reverse direction control circuit, direct current either-rotation motor and cooking apparatus |
| CN111722156A (en) * | 2020-06-29 | 2020-09-29 | 深圳市优必选科技股份有限公司 | Detection circuit and detection method for positive and negative electrodes of brush motor and steering engine |
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| JP2007082374A (en) * | 2005-09-16 | 2007-03-29 | Denso Corp | Protection circuit on reverse connection of power supply |
| CN201011705Y (en) * | 2006-12-20 | 2008-01-23 | 张忠平 | Brushless DC motor circuit for preventing power supply reverse connection |
| CN201388052Y (en) * | 2009-04-07 | 2010-01-20 | 青岛港（集团）有限公司 | Power supply reverse polarity protection device |
| CN101694979A (en) * | 2009-10-20 | 2010-04-14 | 北京航空航天大学 | Electromagnetic torque pulsation suppression device of magnetic suspension reaction fly-wheel motor |
| CN101557187B (en) * | 2009-04-30 | 2011-03-30 | 上海大学 | Control device for brushless direct current motor sensorless and method thereof |
| CN101341641B (en) * | 2005-12-21 | 2012-01-11 | 卢卡斯汽车股份有限公司 | Motor control circuit with malfunction monitoring |
| CN202602583U (en) * | 2012-05-09 | 2012-12-12 | 上海日用-友捷汽车电气有限公司 | Three-phase half-wave brushless DC (direct current) motor controller with reverse connection protection function |
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2012
- 2012-05-09 CN CN2012101433256A patent/CN102664575A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082374A (en) * | 2005-09-16 | 2007-03-29 | Denso Corp | Protection circuit on reverse connection of power supply |
| CN101341641B (en) * | 2005-12-21 | 2012-01-11 | 卢卡斯汽车股份有限公司 | Motor control circuit with malfunction monitoring |
| CN201011705Y (en) * | 2006-12-20 | 2008-01-23 | 张忠平 | Brushless DC motor circuit for preventing power supply reverse connection |
| CN201388052Y (en) * | 2009-04-07 | 2010-01-20 | 青岛港（集团）有限公司 | Power supply reverse polarity protection device |
| CN101557187B (en) * | 2009-04-30 | 2011-03-30 | 上海大学 | Control device for brushless direct current motor sensorless and method thereof |
| CN101694979A (en) * | 2009-10-20 | 2010-04-14 | 北京航空航天大学 | Electromagnetic torque pulsation suppression device of magnetic suspension reaction fly-wheel motor |
| CN202602583U (en) * | 2012-05-09 | 2012-12-12 | 上海日用-友捷汽车电气有限公司 | Three-phase half-wave brushless DC (direct current) motor controller with reverse connection protection function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236813A (en) * | 2013-04-23 | 2013-08-07 | 浙江大学 | Control system of permanent magnet brushless direct current motor |
| CN103236813B (en) * | 2013-04-23 | 2015-11-11 | 浙江大学 | A kind of control system of permanent-magnet brushless DC electric machine |
| CN109831130A (en) * | 2019-02-28 | 2019-05-31 | 广东美的厨房电器制造有限公司 | Forward direction is driven in the reverse direction control circuit, direct current either-rotation motor and cooking apparatus |
| CN111722156A (en) * | 2020-06-29 | 2020-09-29 | 深圳市优必选科技股份有限公司 | Detection circuit and detection method for positive and negative electrodes of brush motor and steering engine |
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Application publication date: 20120912 |