CN204103809U - The soft starting circuit of brushless electric machine - Google Patents
The soft starting circuit of brushless electric machine Download PDFInfo
- Publication number
- CN204103809U CN204103809U CN201420388375.5U CN201420388375U CN204103809U CN 204103809 U CN204103809 U CN 204103809U CN 201420388375 U CN201420388375 U CN 201420388375U CN 204103809 U CN204103809 U CN 204103809U
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- operational amplifier
- power supply
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- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
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Abstract
The utility model relates to a kind of soft starting circuit of brushless electric machine, comprises the first operational amplifier, 1 pin output signal of the first operational amplifier; 3 pin are divided into two-way, lead up to the 27 capacity earth, and the 35 resistance of separately leading up to is connected with power supply; 4 pin ground connection; 8 pin are connected with power supply; 2 pin are divided into four tunnels, and the first via is connected with power supply by the 36 resistance, and the second tunnel is by the 28 capacity earth, and the 3rd tunnel is connected with 5 pin of the second operational amplifier, and the 4th tunnel is connected with 3 pin of triode; 6 pin of the second operational amplifier are divided into three tunnels, and the first via is by the 37 grounding through resistance, and the second tunnel is by the 29 capacity earth, and the 3rd tunnel is connected with power supply by the 38 resistance; 7 pin of the second operational amplifier are connected with 1 pin of triode by the 42 resistance; 1 pin of triode passes through the 31 capacity earth, 2 pin ground connection.During electric motor starting, there will not be that electric current is excessive and power supply that is that cause draws the phenomenon that collapses.
Description
Technical field
The utility model relates to electric machine controller circuit technical field, especially relates to a kind of soft starting circuit of brushless electric machine.
Background technology
Brshless DC motor is made up of motor body and driver, and be a kind of typical electromechanical integrated product, brushless electric machine refers to the motor of brushless and commutator (or collector ring), also known as commutatorless machine.At present, its driver mainly builds by pure hardware circuit, this circuit duty ratio when starting is 100%, and chief component is phase change logic circuit, and it is according to motor hall signal, the six phase drive singal that direct output is different, act on power tube drive motors to rotate, it is when starting, and electric current is excessive, be easy to cause power supply Voltage Drop, occur the phenomenon that cannot start.
Summary of the invention
Technical problem to be solved in the utility model is to provide one and realizes soft starter for motor, reduces starting current, the soft starting circuit of the brushless electric machine of Reliable guarantee power tube security of operation.
The technical scheme in the invention for solving the technical problem is: a kind of soft starting circuit of brushless electric machine, and described soft starting circuit comprises the first operational amplifier, 1 pin output signal of the first described operational amplifier; 3 pin are divided into two-way respectively, lead up to ground connection after the 27 electric capacity, and the 35 resistance of separately leading up to is connected with power supply; 4 pin ground connection; 8 pin are connected with power supply; 2 pin are divided into four tunnels, and the first via is connected with power supply by the 36 resistance, and the second tunnel is by ground connection after the 28 electric capacity, and the 3rd tunnel is connected with 5 pin of the second operational amplifier, and the 4th tunnel is connected with 3 pin of triode; 6 pin of the second described operational amplifier are divided into three tunnels, and the first via is by ground connection after the 37 resistance, and the second tunnel is by ground connection after the 29 electric capacity, and the 3rd tunnel is connected with power supply by after the 38 resistance; 7 pin of the second described operational amplifier are connected with 1 pin of triode by the 42 resistance; 1 pin of described triode by ground connection after the 31 electric capacity, 2 pin ground connection.
The beneficial effects of the utility model are: after have employed foregoing circuit structure, and motor, when starting, there will not be electric current excessive and power supply that is that cause draws the phenomenon that collapses, thus ensure the safety and reliability of motor when starting.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail.
A soft starting circuit for brushless electric machine as shown in Figure 1, described soft starting circuit comprises the first operational amplifier, 1 pin output signal of the first described operational amplifier; 3 pin are divided into two-way respectively, lead up to ground connection after the 27 electric capacity, and the 35 resistance of separately leading up to is connected with power supply; 4 pin ground connection; 8 pin are connected with power supply; 2 pin are divided into four tunnels, and the first via is connected with power supply by the 36 resistance, and the second tunnel is by ground connection after the 28 electric capacity, and the 3rd tunnel is connected with 5 pin of the second operational amplifier, and the 4th tunnel is connected with 3 pin of triode; 6 pin of the second described operational amplifier are divided into three tunnels, and the first via is by ground connection after the 37 resistance, and the second tunnel is by ground connection after the 29 electric capacity, and the 3rd tunnel is connected with power supply by after the 38 resistance; 7 pin of the second described operational amplifier are connected with 1 pin of triode by the 42 resistance; 1 pin of described triode by ground connection after the 31 electric capacity, 2 pin ground connection.
Utilize the discharge and recharge of electric capacity and the conducting turn-off characteristic of triode, design high frequency triangle wave circuit for generating, the triangular wave produced compares with other one group of RC charge circuit, and this signal function of chopping signal that generation duty ratio is changed from small to big, in logic commutation circuit, realizes soft starter for motor.
It is emphasized that above is better implementation column of the present utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (1)
1. a soft starting circuit for brushless electric machine, is characterized in that, described soft starting circuit comprises the first operational amplifier, 1 pin output signal of the first described operational amplifier; 3 pin are divided into two-way respectively, lead up to ground connection after the 27 electric capacity, and the 35 resistance of separately leading up to is connected with power supply; 4 pin ground connection; 8 pin are connected with power supply; 2 pin are divided into four tunnels, and the first via is connected with power supply by the 36 resistance, and the second tunnel is by ground connection after the 28 electric capacity, and the 3rd tunnel is connected with 5 pin of the second operational amplifier, and the 4th tunnel is connected with 3 pin of triode; 6 pin of the second described operational amplifier are divided into three tunnels, and the first via is by ground connection after the 37 resistance, and the second tunnel is by ground connection after the 29 electric capacity, and the 3rd tunnel is connected with power supply by after the 38 resistance; 7 pin of the second described operational amplifier are connected with 1 pin of triode by the 42 resistance; 1 pin of described triode by ground connection after the 31 electric capacity, 2 pin ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388375.5U CN204103809U (en) | 2014-07-14 | 2014-07-14 | The soft starting circuit of brushless electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388375.5U CN204103809U (en) | 2014-07-14 | 2014-07-14 | The soft starting circuit of brushless electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103809U true CN204103809U (en) | 2015-01-14 |
Family
ID=52272209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388375.5U Expired - Lifetime CN204103809U (en) | 2014-07-14 | 2014-07-14 | The soft starting circuit of brushless electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204103809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699607A (en) * | 2016-03-30 | 2016-06-22 | 刘洋 | Product quality detection system for industrial production based on Internet of Things |
-
2014
- 2014-07-14 CN CN201420388375.5U patent/CN204103809U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699607A (en) * | 2016-03-30 | 2016-06-22 | 刘洋 | Product quality detection system for industrial production based on Internet of Things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215300 No. 268, Songshan Road, hi tech Zone, Jiangsu, Suzhou Patentee after: SUZHOU AEROSAPCE LINQUAN MOTOR Co.,Ltd. Address before: 215300 No. 1328 Changjiang North Road, Kunshan, Jiangsu, Suzhou Patentee before: KUNSHAN AEROSPACE LINQUAN ELECTRICAL MACHINERY CO.,LTD. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20240118 Address after: No. 268 Songshan Road, High tech Zone, Suzhou City, Jiangsu Province, China Patentee after: SUZHOU BRANCH OF GUIZHOU SPACEFLIGHT LINQUAN MOTOR Co.,Ltd. Address before: 215300 Songshan Road 268, Suzhou High-tech Zone, Jiangsu Province Patentee before: SUZHOU AEROSAPCE LINQUAN MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150114 |
|
| CX01 | Expiry of patent term |