CN203278731U - Control device of brushless DC motor - Google Patents
Control device of brushless DC motor Download PDFInfo
- Publication number
- CN203278731U CN203278731U CN 201320299701 CN201320299701U CN203278731U CN 203278731 U CN203278731 U CN 203278731U CN 201320299701 CN201320299701 CN 201320299701 CN 201320299701 U CN201320299701 U CN 201320299701U CN 203278731 U CN203278731 U CN 203278731U
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- motor
- chip unit
- control
- control device
- signals
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Abstract
The utility model discloses a control device of a brushless DC motor, comprising a motor, and also comprises a main chip unit and a driver chip unit which are connected with each other. The driver chip unit is connected with the motor. The main chip unit outputs six paths of PWM signals to signal input ends of the driver chip unit. Signal output ends of the driver chip unit are connected with three-phase terminals of the motor. The device solves problems in the prior art that a control frame of the control device of the brushless DC motor is relatively complex and cost is relatively high. Through the PWM signals, the device controls start, stop, and changes of speed of the motor, and through monitoring hall signals of the motor, motion positions and rotating speed of the motor are monitored, thereby achieving closed-cycle control of the motor speed. Through monitoring overcurrent signals, undervoltage signals and other signals, abnormal detection and control are realized. The device realizes integrated motor automatic control functions under the circumstance that a special-purpose motor control chip and an encoder are omitted, thereby simplifying control framework and saving cost.
Description
Technical field
The utility model has related to a kind of control device of dc brushless motor, has especially related to a kind of control device of the dc brushless motor of being realized by pwm signal.
Background technology
Electric Machine Control is the technology that is widely used now, and the PWM Electric Machine Control is a kind of convenience, control technology that control precision is high especially.But existing electrode control device need to use special motor control chip and encoder could realize the automation of motor is controlled usually, and the control framework of this control device is comparatively complicated, and cost is relatively high.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of control device of dc brushless motor, simplified the control framework, in the situation that omitted on the market that motor special control chip, encoder realize that speed control, direction, the motor position of motor are controlled and the motor movement process in abnormality detection and control, realized integrated motor automatic control function.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of control device of dc brushless motor comprises motor, also comprises interconnective master chip unit and drives chip unit, and described driving chip unit is connected with described motor; Wherein, described master chip unit output six road pwm signals are to the signal input part that drives chip unit, and the signal output part of described driving chip unit is connected with three-phase terminal of described motor.
The control device of aforesaid a kind of dc brushless motor is characterized in that: described master chip unit is by hall signal line and the corresponding connection of described motor winding.
The control device of aforesaid a kind of dc brushless motor is characterized in that: the status signal of described motor feeds back to the master chip unit by driving chip unit.
The control device of aforesaid a kind of dc brushless motor is characterized in that: described status signal comprises over-current signal and the under-voltage signal of motor.
The beneficial effects of the utility model are: this control device by pwm signal control motor startup, stop, the change of speed, monitor movement position and the rotating speed of motor by the hall signal of monitoring motor, reach the closed-loop control of motor speed; Realize abnormal detection and control by the overcurrent of monitoring motor, the signal such as under-voltage; Realize integrated motor automatic control function in the situation that omitted on the market motor special control chip, encoder, simplified the control framework, saved cost.
Description of drawings
Fig. 1 is the structural representation of the control device of a kind of dc brushless motor of the utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1, a kind of control device of dc brushless motor comprises motor, also comprises interconnective master chip unit and drives chip unit, and described driving chip unit is connected with described motor; Wherein, described master chip unit output six road pwm signals are to the signal input part that drives chip unit, and the signal output part of described driving chip unit is connected with three-phase terminal of described motor.Output six road pwm signals in master chip unit realize U, the V of input end of motor, the control of three signals of W by driving chip unit to driving chip unit, realize to motor startup, stop, the control of speed.
The master chip unit is by hall signal line and the corresponding connection of described motor winding, and movement position and the rotating speed of motor are monitored in the master chip unit by the hall signal of monitoring motor, reach the closed-loop control of motor speed.
The status signal of motor feeds back to the master chip unit by driving chip unit, and this status signal comprises over-current signal and the under-voltage signal of motor, realizes abnormal detection and control by monitoring overcurrent, the signal such as under-voltage.
In sum, the control device of a kind of dc brushless motor that the utility model provides, simplified the control framework, in the situation that omitted on the market that motor special control chip, encoder realize that speed control, direction, the motor position of motor are controlled and the motor movement process in abnormality detection and control, realized integrated motor automatic control function.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (4)
1. the control device of a dc brushless motor, comprise motor, it is characterized in that: also comprise interconnective master chip unit and drive chip unit, described driving chip unit is connected with described motor; Wherein, described master chip unit output six road pwm signals are to the signal input part that drives chip unit, and the signal output part of described driving chip unit is connected with three-phase terminal of described motor.
2. the control device of a kind of dc brushless motor according to claim 1 is characterized in that: described master chip unit is by hall signal line and the corresponding connection of described motor winding.
3. the control device of a kind of dc brushless motor according to claim 1 and 2 is characterized in that: the status signal of described motor feeds back to the master chip unit by driving chip unit.
4. the control device of a kind of dc brushless motor according to claim 3, it is characterized in that: described status signal comprises over-current signal and the under-voltage signal of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320299701 CN203278731U (en) | 2013-05-29 | 2013-05-29 | Control device of brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320299701 CN203278731U (en) | 2013-05-29 | 2013-05-29 | Control device of brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278731U true CN203278731U (en) | 2013-11-06 |
Family
ID=49509054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320299701 Expired - Lifetime CN203278731U (en) | 2013-05-29 | 2013-05-29 | Control device of brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278731U (en) |
-
2013
- 2013-05-29 CN CN 201320299701 patent/CN203278731U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |