CN107681932A - Motor-drive circuit - Google Patents
Motor-drive circuit Download PDFInfo
- Publication number
- CN107681932A CN107681932A CN201711009022.4A CN201711009022A CN107681932A CN 107681932 A CN107681932 A CN 107681932A CN 201711009022 A CN201711009022 A CN 201711009022A CN 107681932 A CN107681932 A CN 107681932A
- Authority
- CN
- China
- Prior art keywords
- switch
- transistor
- motor
- interface
- drive circuit
- Prior art date
- 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.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
- H02P7/04—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of a H-bridge circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
- H02P7/05—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of electronic switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The invention provides a kind of motor-drive circuit, the motor-drive circuit includes first switch, second switch, third switch and the first transistor, wherein：Described first switch one end connects power supply, and the other end connects the second switch and the 3rd switch；The second switch and the 3rd switch include first interface, second interface and the 3rd interface, the first interface electrically connects with the second interface or with the 3rd interface, the second switch connects motor with the first interface of the described 3rd switch, the second interface ground connection of the second switch and the 3rd switch, the second switch connect first switch with the first interface of the described 3rd switch；The first transistor is connected between second interface and the ground of the second switch and the 3rd switch.The present invention solves the problems, such as that existing motor-drive circuit can not adjust load capacity.
Description
Technical field
The present invention relates to motor-drive technique field, more particularly to a kind of motor-drive circuit.
Background technology
Traditional motor-drive circuit utilizes relay driving motor, as shown in figure 1, the both ends of motor 100 connect respectively
K20 and K30 is switched, and the normally closed interlock for switching K20 and K30 is grounded, normally open contact connecting valve K10, switchs the K10 other end
Power supply is connected, when K10 is closed, if switch K20 and K30 is in normally closed interlock end, motor 100 is rotated in a first direction, if opening
When pass K20 and K30 is in normally open contact, motor 100 rotates in a second direction, and the motor-drive circuit has following weak point：
Driving force can not be adjusted for the motor load of power variable.
Therefore, it is necessary to design a kind of motor-drive circuit of adjustable load capacity.
The content of the invention
It is an object of the invention to provide a kind of motor-drive circuit, can not be adjusted with solving existing motor-drive circuit
The problem of load capacity.
In order to solve the above technical problems, the present invention provides a kind of motor-drive circuit, the motor-drive circuit includes the
One switch, second switch, the 3rd switch and the first transistor, wherein：
Described first switch one end connects power supply, and the other end connects the second switch and the 3rd switch；
The second switch and the 3rd switch include first interface, second interface and the 3rd interface, and described first
Interface electrically connects with the second interface or with the 3rd interface, the first interface of the second switch and the 3rd switch
Connect the second interface ground connection of motor, the second switch and the 3rd switch, the second switch and the 3rd switch
First interface connection first switch；
The first transistor is connected between second interface and the ground of the second switch and the 3rd switch.
Optionally, in described motor-drive circuit, the motor-drive circuit also includes the 4th and switched, and the described 4th
One end of switch connects the 3rd interface of the second switch, the second interface of other end connection the 3rd switch.
Optionally, in described motor-drive circuit, the second switch and the 3rd switch are relay, described
In the second interface and the second switch of second switch and the 3rd switch and the 3rd interface of the 3rd switch, one
For normally open contact, another is normally closed interlock.
Optionally, in described motor-drive circuit, the motor-drive circuit also includes controller, and described first is brilliant
Body pipe is N-channel field-effect transistor, and the grid of the first transistor connects the controller, the source of the first transistor
In pole and drain electrode, one end connects the second interface of the second switch and the 3rd switch, other end ground connection.
Optionally, in described motor-drive circuit, the pulse-width signal of the controller output different duty.
Optionally, in described motor-drive circuit, the second switch and the 3rd switch are to described second
When interface closes, the motor is rotated in a first direction, and the second switch and the 3rd switch are to the 3rd interface
During closure, the motor rotates in a second direction.
Optionally, in described motor-drive circuit, in the second switch and the 3rd switch, one to second
Interface close, another to the 3rd interface close when, motor is as generator operation.
Optionally, in described motor-drive circuit, the second switch includes second transistor and third transistor,
The second transistor is P-channel field-effect transistor (PEFT) transistor, and the third transistor is N-channel field-effect transistor, described second
Transistor is connected with the grid of the third transistor and connects the first control terminal, the second transistor and described 3rd brilliant
The drain electrode of body pipe is connected and connects one end of motor, and the source electrode connection the first transistor of the second transistor, the described 3rd is brilliant
The source ground of body pipe.
Optionally, in described motor-drive circuit, the 3rd switch includes the 4th transistor and the 5th transistor,
4th transistor is P-channel field-effect transistor (PEFT) transistor, and the 5th transistor is N-channel field-effect transistor, the described 4th
Transistor is connected with the grid of the 5th transistor and connects the second control terminal, the 4th transistor and described 5th brilliant
The drain electrode of body pipe is connected and connects the other end of motor, and the source electrode of the 4th transistor connects the source electrode of second transistor, institute
State the source ground of the 5th transistor.
Optionally, in described motor-drive circuit, first control terminal and second control terminal quilt
When providing low level, the motor is rotated in a first direction, and first control terminal and second control terminal are carried
During for high level, the motor rotates in a second direction, in first control terminal and second control terminal, a quilt
Low level is provided, when another is provided high level, motor is as generator operation.
In motor-drive circuit provided by the invention, by the first transistor be connected to second switch and the 3rd switch with
Between ground, the first transistor is set to get involved in motor driving loop, can be by adjusting opening for the first transistor when motor rotates
Close dutycycle, you can the load capacity of regulation motor drive circuit.
The driving circuit that the present invention is combined based on relay assembly or field-effect transistor, the variable work(of load can be realized
Rate drives, and by the disconnection of the 4th switch, when motor is as generator operation, can effectively protect driving circuit.
Brief description of the drawings
Fig. 1 is existing motor-drive circuit schematic diagram；
Fig. 2 is the motor-drive circuit schematic diagram of one embodiment of the invention；
Fig. 3 is the motor-drive circuit schematic diagram of another embodiment of the present invention；
Shown in figure：10- motors；20- controllers；30- first switches；40- second switches；100- motors.
Embodiment
Motor-drive circuit proposed by the present invention is described in further detail below in conjunction with the drawings and specific embodiments.Root
According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that accompanying drawing is using very simple
The form of change and non-accurately ratio is used, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
The present invention core concept be to provide a kind of motor-drive circuit, can not to solve existing motor-drive circuit
The problem of adjusting load capacity.
To realize above-mentioned thought, the invention provides a kind of motor-drive circuit, the motor-drive circuit includes first
Switch, second switch, the 3rd switch and the first transistor, wherein：Described first switch one end connects power supply, other end connection institute
State second switch and the 3rd switch；The second switch and it is described 3rd switch include first interface, second interface and
3rd interface, the first interface electrically connect with the second interface or with the 3rd interface, the second switch and described
The first interface connection motor of 3rd switch, the second switch connect the first transistor with the second interface of the described 3rd switch
One end, the second switch with the described 3rd switch first interface connect first switch；The first transistor it is another
End ground connection.
<Embodiment one>
The present embodiment provides a kind of motor-drive circuit, and the motor-drive circuit includes first switch K1, second switch
K2, the 3rd switch K3 and the first transistor Q1, wherein：Described first switch K1 one end connects power supply VCC, described in other end connection
Second switch K2 and the 3rd switch K3；The second switch K2 and the 3rd switch K3 include first interface, second
Interface and the 3rd interface, the first interface electrically connect with the second interface or with the 3rd interface, the second switch
K2 connects motor 10 with the described 3rd switch K3 first interface, and the second switch K2 and the described 3rd switchs the second of K3 and connect
Mouthful connection the first transistor Q1 drain electrode or source electrode, the switches of the second switch K2 and the described 3rd K3 first interface connect the
One switch K1；In the first transistor Q1 drain electrodes or source electrode, one end ground connection of the second interface is not connected with.
In the motor-drive circuit that the present embodiment provides, second switch K2 and the 3rd are connected to by the first transistor Q1
Switch between K3 and ground, the first transistor Q1 is got involved in motor driving loop, when motor rotates, regulation first can be passed through
Transistor Q1 duty cycle of switching, you can the load capacity of regulation motor drive circuit.
Specifically, in described motor-drive circuit, the motor-drive circuit also includes the 4th switch K4, described the
Four switch K4 one end connects the 3rd interface of the second switch K2, and the second of other end connection the 3rd switch K3 connects
Mouthful.The second switch K2 and the 3rd switch K3 be relay, and the second switch K2 and the described 3rd switchs the of K3
In two interfaces and the second switch K2 and the 3rd switch K3 the 3rd interface, one is normally open contact, and another is normal
Close contact.
Further, in described motor-drive circuit, the motor-drive circuit also includes controller 20, and described
One transistor Q1 is N-channel field-effect transistor, and the grid of the first transistor Q1 connects the controller 20, described first
In transistor Q1 source electrode and drain electrode, one end connects the second switch K2 and the 3rd switch K3 second interface, another
End ground connection.The pulse-width signal of the controller output different duty, the first transistor account for according to pulse-width signal
The change of empty ratio, switch degree also change therewith, so that the size of current change of motor.
In addition, in described motor-drive circuit, the second switch K2 and the 3rd switch K3 are to described the
When two interfaces close, electric current is flowed through by second switch, motor and the 3rd switch and flows into ground, and the motor 10 revolves in the first direction
Turn, the second switch K2 and the 3rd switch K3 be to the 3rd interface when close, electric current is switched by the 3rd, motor and
Second switch flows through and flows into ground, and the motor 10 rotates in a second direction.The second switch K2 and the 3rd switch K3
In, one closes to second interface, another to the 3rd interface close when, the both ends of motor 10 formation closed-loop path, motor 10 makees
For generator operation.
As shown in figure 1, traditional motor-drive circuit has sudden-stop function, as shown in figure 1, when stopping motor, electricity
Machine 100 is because inertia may proceed to turn certain angle, if the shorted on both ends of motor, i.e. the normally open contact of second switch K20 closes
Close, the 3rd switch K30 normally closed interlock closure (or opposite), motor 100 can be used as generator operation, motor 100 can because of gram
Take magnetic field resistance work and stop operating.But in practical application, may be complete because of the reasons such as human operational error, motor
The state is also kept after stopping, if now there is external force to drive the motor to rotate, motor can be used as generator operation, the production of motor both ends
Raw electromotive force is short-circuited, and influences systematic function, therefore, disconnects the 4th switch K4 at this moment, motor can be prevented by outside machinery
Drive is used as generator operation, and because the both ends of motor are hanging, perceptual electromotive force does not have loop caused by motor both ends, outside
Portion's machinery drive motor, which rotates, will not cause extra resistance.
To sum up, the various configuration of motor-drive circuit is described in detail above-described embodiment, and certainly, the present invention includes
But configuration cited in above-mentioned implementation is not limited to, is entered on the basis of any configuration provided in above-described embodiment in line translation
Hold, belong to the scope that the present invention is protected.Those skilled in the art can draw inferences about other cases from one instance according to the content of above-described embodiment.
<Embodiment two>
As shown in figure 3, in the motor-drive circuit of the present embodiment, the second switch 30 include second transistor Q2 and
Third transistor Q3, the second transistor Q2 are P-channel field-effect transistor (PEFT) transistor, and the third transistor Q3 is imitated for N-channel field
Transistor is answered, the second transistor Q2 is connected with the grid of the third transistor Q3 and connects the first control terminal, by
The control signal of one control terminal input is uniformly controlled, and the second transistor Q2 and the third transistor Q3 drain electrode are connected
And one end of motor 10 is connected, and the source electrode connection the first transistor Q1 of the second transistor Q2, the first transistor Q1 grid
Controller (not shown) is connected, a connection second transistor in the first transistor Q1 source electrode and drain electrode, another
Connect power supply, the source ground of the third transistor Q3.
Further, in described motor-drive circuit, the 3rd switch 40 includes the 4th transistor Q4 and the 5th
Transistor Q5, the 4th transistor Q4 are P-channel field-effect transistor (PEFT) transistor, and the 5th transistor Q5 is that N-channel field-effect is brilliant
Body pipe, the 4th transistor Q4 is connected with the grid of the 5th transistor Q5 and connects the second control terminal, by the second control
The control signal of terminal input processed is uniformly controlled, and the 4th transistor Q4 is connected and connected with the drain electrode of the 5th transistor Q5
Connect the other end of motor 10, the source electrode connection second transistor Q2 of the 4th transistor Q4 source electrode, the 5th transistor
Q5 source ground.
Specifically, in described motor-drive circuit, first control terminal and second control terminal quilt
When providing low level, second transistor Q2 and the 5th transistor Q5 conductings, third transistor Q3 and the 4th transistor Q4 are turned off, electricity
Stream flows into ground after second transistor, motor and the 5th transistor, and the motor 10 is rotated in a first direction, first control
When terminal processed and second control terminal are provided high level, second transistor and the shut-off of the 5th transistor, the 3rd crystal
Pipe and the 4th transistor turns, electric current flow into after the 4th transistor, motor and third transistor, and the motor 10 is along the
Two directions rotate, and in first control terminal and second control terminal, one is provided low level, and another is provided
During high level, second transistor Q2 and the 4th transistor Q4 conductings, or third transistor Q3 and the 5th transistor Q5 conductings, electricity
The both ends of machine 10 form closed-loop path, and motor 10 is used as generator operation.
In the motor-drive circuit that the present embodiment provides, opened as shown in figure 3, being connected to second by the first transistor Q1
(the first transistor Q1 can also be connected to the switch of second switch 30 and the 3rd 40 and ground between the switch 40 of pass 30 and the 3rd and power supply
Between), the first transistor Q1 is got involved in motor driving loop, can be by adjusting the first transistor when motor 10 rotates
Q1 duty cycle of switching, you can the load capacity of regulation motor drive circuit.
The driving circuit that the present invention is combined based on relay assembly or field-effect transistor, the variable work(of load can be realized
Rate drives, and by the 4th switch K4 disconnection, when motor 10 is as generator operation, can effectively protect and drive back
Road.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.Foregoing description is only to the present invention
The description of preferred embodiment, not to any restriction of the scope of the invention, the those of ordinary skill in field of the present invention is according to above-mentioned
Any change, the modification that disclosure is done, belong to the protection domain of claims.
Claims (10)
1. a kind of motor-drive circuit, it is characterised in that the motor-drive circuit includes first switch, second switch, the 3rd
Switch and the first transistor, wherein：
Described first switch one end connects power supply, and the other end connects the second switch and the 3rd switch；
The second switch and the 3rd switch include first interface, second interface and the 3rd interface, the first interface
Electrically connected with the second interface or with the 3rd interface, the second switch connects with the first interface of the described 3rd switch
The of the second interface ground connection of motor, the second switch and the 3rd switch, the second switch and the 3rd switch
One interface connects first switch；
The first transistor is connected between second interface and the ground of the second switch and the 3rd switch.
2. motor-drive circuit as claimed in claim 1, it is characterised in that the motor-drive circuit is also opened including the 4th
Close, one end of the 4th switch connects the 3rd interface of the second switch, and the other end connects the second of the 3rd switch
Interface.
3. motor-drive circuit as claimed in claim 1, it is characterised in that the second switch and it is described 3rd switch be after
Electrical equipment, the second interface and the second switch of the second switch and the 3rd switch and the 3rd of the 3rd switch connect
In mouthful, one is normally open contact, and another is normally closed interlock.
4. motor-drive circuit as claimed in claim 1, it is characterised in that the motor-drive circuit also includes controller,
The first transistor is N-channel field-effect transistor, and the grid of the first transistor connects the controller, described first
In the source electrode and drain electrode of transistor, one end connects the second interface of the second switch and the 3rd switch, other end ground connection.
5. motor-drive circuit as claimed in claim 4, it is characterised in that the pulsewidth of the controller output different duty
Modulated signal.
6. motor-drive circuit as claimed in claim 1, it is characterised in that the second switch and it is described 3rd switch to
During the second interface closure, the motor is rotated in a first direction, and the second switch and the 3rd switch are to described
When 3rd interface closes, the motor rotates in a second direction.
7. motor-drive circuit as claimed in claim 6, it is characterised in that in the second switch and the 3rd switch,
One to second interface close, another to the 3rd interface close when, motor is as generator operation.
8. motor-drive circuit as claimed in claim 1, it is characterised in that the second switch includes second transistor and the
Three transistors, the second transistor are P-channel field-effect transistor (PEFT) transistor, and the third transistor is N-channel field-effect transistor,
The second transistor is connected with the grid of the third transistor and connects the first control terminal, the second transistor and institute
The drain electrode for stating third transistor is connected and connects one end of motor, and the source electrode of the second transistor connects the first transistor, institute
State the source ground of third transistor.
9. motor-drive circuit as claimed in claim 8, it is characterised in that the 3rd switch includes the 4th transistor and the
Five transistors, the 4th transistor are P-channel field-effect transistor (PEFT) transistor, and the 5th transistor is N-channel field-effect transistor,
4th transistor is connected with the grid of the 5th transistor and connects the second control terminal, the 4th transistor and institute
The drain electrode for stating the 5th transistor is connected and connects the other end of motor, the source electrode connection second transistor of the 4th transistor
Source electrode, the source ground of the 5th transistor.
10. motor-drive circuit as claimed in claim 9, it is characterised in that first control terminal and second control
When terminal processed is provided low level, the motor is rotated in a first direction, first control terminal and second control
When terminal is provided high level, the motor rotates in a second direction, first control terminal and second control terminal
In son, one is provided low level, and when another is provided high level, motor is as generator operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009022.4A CN107681932A (en) | 2017-10-25 | 2017-10-25 | Motor-drive circuit |
| PCT/CN2018/111196 WO2019080793A1 (en) | 2017-10-25 | 2018-10-22 | Motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711009022.4A CN107681932A (en) | 2017-10-25 | 2017-10-25 | Motor-drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107681932A true CN107681932A (en) | 2018-02-09 |
Family
ID=61142167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711009022.4A Withdrawn CN107681932A (en) | 2017-10-25 | 2017-10-25 | Motor-drive circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107681932A (en) |
| WO (1) | WO2019080793A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080793A1 (en) * | 2017-10-25 | 2019-05-02 | 联合汽车电子有限公司 | Motor driving circuit |
| CN110572095A (en) * | 2019-09-16 | 2019-12-13 | 南京丁博控制器有限公司 | Direct current brush motor control system with reversing function for electric automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811151A1 (en) * | 1998-03-14 | 1999-09-16 | Bosch Gmbh Robert | Procedure for controlling electric drive, especially in car |
| JP2002095286A (en) * | 2000-09-12 | 2002-03-29 | Aisin Seiki Co Ltd | Protector for drive circuit |
| CN201568355U (en) * | 2009-09-15 | 2010-09-01 | 杨冕 | Fan operation circuit |
| CN205453558U (en) * | 2016-02-26 | 2016-08-10 | 深圳市振邦智能科技有限公司 | Direct current motor's just reversal control circuit and device |
| CN207354089U (en) * | 2017-10-25 | 2018-05-11 | 联合汽车电子有限公司 | Motor-drive circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009273238A (en) * | 2008-05-08 | 2009-11-19 | Omron Corp | Opening and closing object drive controller and opening and closing object drive control method |
| CN102739125A (en) * | 2012-07-04 | 2012-10-17 | 东方久乐汽车电子（上海）有限公司 | Circuit for controlling rotating speed and direction of direct-current window motor |
| CN102788035B (en) * | 2012-08-01 | 2015-06-03 | 杭州新都奥兰汽车空调有限公司 | Forward and reverse rotation device of condensing fan |
| CN103306568B (en) * | 2013-06-19 | 2016-02-17 | 宁波恒特汽车零部件有限公司 | For controlling the circuit structure of window direct-current motor rotating |
| CN107681932A (en) * | 2017-10-25 | 2018-02-09 | 联合汽车电子有限公司 | Motor-drive circuit |
-
2017
- 2017-10-25 CN CN201711009022.4A patent/CN107681932A/en not_active Withdrawn
-
2018
- 2018-10-22 WO PCT/CN2018/111196 patent/WO2019080793A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811151A1 (en) * | 1998-03-14 | 1999-09-16 | Bosch Gmbh Robert | Procedure for controlling electric drive, especially in car |
| JP2002095286A (en) * | 2000-09-12 | 2002-03-29 | Aisin Seiki Co Ltd | Protector for drive circuit |
| CN201568355U (en) * | 2009-09-15 | 2010-09-01 | 杨冕 | Fan operation circuit |
| CN205453558U (en) * | 2016-02-26 | 2016-08-10 | 深圳市振邦智能科技有限公司 | Direct current motor's just reversal control circuit and device |
| CN207354089U (en) * | 2017-10-25 | 2018-05-11 | 联合汽车电子有限公司 | Motor-drive circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080793A1 (en) * | 2017-10-25 | 2019-05-02 | 联合汽车电子有限公司 | Motor driving circuit |
| CN110572095A (en) * | 2019-09-16 | 2019-12-13 | 南京丁博控制器有限公司 | Direct current brush motor control system with reversing function for electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019080793A1 (en) | 2019-05-02 |
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Application publication date: 20180209 |
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