CN211063546U

CN211063546U - Motor controller

Info

Publication number: CN211063546U
Application number: CN201922167554.1U
Authority: CN
Inventors: 王必成
Original assignee: Shenzhen Jitiancheng Technology Co ltd
Current assignee: Shenzhen Jitiancheng Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-07-21
Anticipated expiration: 2029-12-06

Abstract

An embodiment of the utility model provides a motor controller, include: the device comprises a power supply, a communication module, an ID selection circuit, a main control circuit, a motor driving circuit and an angle sensor circuit; the power supply is respectively connected with the ID selection circuit, the main control circuit, the motor drive circuit and the angle sensor circuit; the main control circuit is respectively connected with the communication module, the ID selection circuit, the motor driving circuit and the angle sensor circuit. After the master control circuit receives an external control signal through the communication module, the motor driving circuit is controlled to operate according to the control signal, the motor can be controlled to rotate after the motor driving circuit operates, the resistance value of the angle sensor circuit can change in real time along with the change of the rotation angle of the motor in the rotation process of the motor, the current or voltage signal fed back to the master control circuit by the angle sensor circuit can also change in real time along with the change of the resistance value, and the master control circuit can calculate the rotation angle of the motor according to the current or voltage signal fed back by the angle sensor circuit.

Description

Motor controller

Technical Field

The utility model relates to an automatic control technical field especially relates to a motor controller.

Background

In practical applications, when the motor is controlled, the rotation angle of the motor is usually detected by using a raster-coded detection method, so that the motor can be accurately controlled according to the detected rotation angle. The detection mode of utilizing grating coding needs to install a grating wheel at the bottom of the motor and a pair of optical transmitting and receiving geminate transistors, and the number of grids rotated by the grating wheel is counted through the optical transmitting and receiving geminate transistors, so that the detection of the rotation angle of the motor is realized.

However, due to the limitation of the manufacturing dimensional accuracy of the grating wheel grid, it is difficult to accurately detect the rotation angle of the motor.

SUMMERY OF THE UTILITY MODEL

For solving the problem that the correlation technique exists, the embodiment of the utility model provides a motor controller is provided, include: the device comprises a power supply, a communication module, an ID selection circuit, a main control circuit, a motor driving circuit and an angle sensor circuit;

the power supply is respectively connected with the ID selection circuit, the master control circuit, the motor drive circuit and the angle sensor circuit;

the main control circuit is respectively connected with the communication module, the ID selection circuit, the motor driving circuit and the angle sensor circuit.

Optionally, the power supply adopts one of a power supply voltage stabilization integrated chip, a switching power supply and a transformer linear power supply.

Optionally, the ID selection circuit includes a resistor R1, at least one control switch, and at least one fixed resistor, and the resistance values of the fixed resistors and the resistor R1 are different,

each control switch is connected in series with a fixed resistor to form a sub-circuit, and all the sub-circuits are connected in parallel;

the resistor R1 is connected in series between each sub-circuit and the power supply, and one end of each sub-circuit connected with the resistor R1 is connected with the main control circuit.

Optionally, the angle sensor circuit includes: an angle sensor, a resistor R2 and a capacitor,

one end of the resistor R2 is connected with a sliding pin of the angle sensor;

the other end of the resistor R2 is respectively connected with one end of the capacitor and the main control circuit;

the other end of the capacitor is connected with a coil pin of the angle sensor;

and the other coil pin of the angle sensor is connected with the power supply.

Optionally, the master control circuit is an SOP series, TSSOP series, QFN series, L QFP series packaged chip.

Optionally, the motor driving circuit is packaged by an SOT series, an SOP series, an ESOP series, or a DFN series chip.

Optionally, the communication module is one of a bluetooth communication module, a GPRS communication module, an infrared communication module, a WIFI wireless communication module, a serial communication module, an IIC data bus communication module, and a CAN bus communication module.

The embodiment of the utility model provides a pair of motor controller, can decide the address that motor controller and outside communicate through ID selection circuit, after master control circuit received external control signal through communication module, master control circuit controls motor drive circuit operation according to control signal, then can control the motor rotation after the motor drive circuit operation, the resistance of motor rotation in-process angle sensor circuit can change in real time along with motor turned angle's change, and along with resistance change angle sensor circuit also can change in real time to current or the voltage signal of master control circuit feedback, master control circuit then can calculate the turned angle of motor according to current or the voltage signal of angle sensor circuit feedback.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of a motor controller according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an ID selection circuit according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an angle sensor circuit according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiment of the present invention.

Referring to fig. 1, it is a schematic structural diagram of a motor controller according to an embodiment of the present invention, including: a power supply 100, a communication module 200, an ID (Identity document) selection circuit 300, a main control circuit 400, a motor drive circuit 500, and an angle sensor circuit 600;

the power supply 100 is connected to the ID selection circuit 300, the main control circuit 400, the motor drive circuit 500, and the angle sensor circuit 600, respectively;

the main control circuit 400 is connected to the communication module 200, the ID selection circuit 300, the motor drive circuit 500, and the angle sensor circuit 600, respectively.

In an implementation, the ID selection circuit 300 may determine an address for communication between the motor controller and the external host, so that the motor controller can distinguish from other motor controllers when communicating with the external host. The user can utilize outside host computer to send control signal to master control circuit 400 through communication module 200, after master control circuit 400 received the control signal that outside host computer sent through communication module 200, control motor drive circuit 500 operation according to control signal, then can drive the motor rotation after motor drive circuit 500 operation, the resistance value of angle sensor circuit 600 can change in real time along with the change of motor turned angle in the motor rotation process, and along with the change of resistance value current or the voltage signal that angle sensor circuit 600 feedbacks to master control circuit 400 also can change in real time, master control circuit 400 then can calculate the turned angle of motor according to the current or the voltage signal that angle sensor circuit 600 feedbacks.

In implementation, one rotation of the motor can be divided into 1024 levels, namely, the precision of the rotation angle can be controlled to 0.35 degree, so that the detection precision of the rotation angle is improved.

In implementation, the power supply 100 may adopt one of a power supply voltage stabilization integrated chip, a switching power supply, and a transformer linear power supply;

the master control circuit 400 may employ SOP series, TSSOP series, QFN series, L QFP series packaged chips, for example, the master control circuit 400 may employ SOP8 packaged chips;

the motor driving circuit 500 may be a SOT series, SOP series, ESOP series, DFN series packaged chip, for example, the motor driving circuit 500 may be a SOT23-6 packaged chip.

Communication module 200 may adopt one of bluetooth communication module, GPRS communication module, infrared communication module, WIFI wireless communication module, serial communication module, IIC data bus communication module, CAN bus communication module.

It should be noted that the power supply 100, the main control circuit 400, the motor driving circuit 500 and the communication module 200, including but not limited to the above-mentioned implementation manners, may be replaced by any other device capable of implementing the corresponding functions.

In one implementation, the ID selection circuit 300 may include a resistor R1, at least one control switch, and at least one fixed resistor, and the resistance of each fixed resistor is different from that of the resistor R1,

each control switch is connected in series with a fixed resistor to form a sub-circuit, and all the sub-circuits are connected in parallel; and a resistor R1 is connected in series between each sub-circuit and the power supply 100, and one end of each sub-circuit connected with the resistor R1 is connected with the main control circuit 400.

Referring to fig. 2, which is a schematic structural diagram of an ID selection circuit according to an embodiment of the present invention, the ID selection circuit includes two sub-circuits, and 4 different IDs can be edited for a motor controller by controlling the on/off states of control switches in the sub-circuits, for example, when both control switches are in an off state, an address of the motor controller is defined as 1; when the control switch 1 is in a closed state and the control switch 2 is in an open state, defining the address of the motor controller as 2; when the control switch 1 is in an open state and the control switch 2 is in a closed state, defining the address of the motor controller as 3; when both control switches are in the closed state, the address of the motor controller is defined as 4. Thus, 4 different motor controllers can be assigned different addresses by the ID selection circuit described in fig. 2.

As shown in fig. 3, for the structural schematic diagram of the angle sensor circuit 600 provided by the embodiment of the present invention, the angle sensor circuit 600 includes: an angle sensor, a resistor R2, and a capacitor, wherein,

one end of the resistor R2 is connected with a sliding pin of the angle sensor;

and the other coil pin of the angle sensor is connected with a power supply.

The embodiment of the utility model provides a scheme detects the turned angle of motor through angle sensor circuit 600, and the simple installation detects the precision height.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A motor controller, comprising: the device comprises a power supply, a communication module, an ID selection circuit, a main control circuit, a motor driving circuit and an angle sensor circuit;

2. The motor controller of claim 1, wherein the power supply is one of a power supply voltage stabilization integrated chip, a switching power supply, and a transformer linear power supply.

3. The motor controller of claim 1, wherein the ID selection circuit comprises a resistor R1, at least one control switch, and at least one fixed resistor, and the resistance of each fixed resistor is different from that of the resistor R1,

4. The motor controller of claim 1, wherein the angle sensor circuit comprises: an angle sensor, a resistor R2 and a capacitor,

one end of the resistor R2 is connected with a sliding pin of the angle sensor;

and the other coil pin of the angle sensor is connected with the power supply.

5. The motor controller of claim 1, wherein the master circuit is packaged in an SOP series, TSSOP series, QFN series, L QFP series chip.

6. The motor controller according to claim 1, wherein the motor drive circuit packages chips in an SOT series, an SOP series, an ESOP series, and a DFN series.

7. The motor controller of claim 1, wherein the communication module is one of a bluetooth communication module, a GPRS communication module, an infrared communication module, a WIFI wireless communication module, a serial communication module, an IIC data bus communication module, and a CAN bus communication module.