US 2010/0138045 A1Published application

Motor driving device

AssigneeFoxnum Technology Co., Ltd.

InventorHSIN-YEN CHAO

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Abstract

A motor driving device for driving a motor includes a motor driver, a speed control loop, a current control loop, and an arithmetic selecting module. The motor driver provides a current signal for the motor to output a speed signal. The speed control loop receiving the speed signal and a speed command, includes a first selector and two first arithmetic modules. The current control loop receiving the current signal, includes a second selector and two second arithmetic modules. The arithmetic selecting module outputs a first select command and a second select command to select an arithmetic module of the speed control loop and the current control loop correspondingly. The speed control loop provides a current command for the current control loop and the arithmetic selecting module. The current control loop provides a control signal for the motor driver to adjust the current signal thereby to adjust the speed signal.

Claims9

Dependent claims

A motor driving device for driving a motor, comprising:

a motor driver configured for driving the motor, wherein the motor driver provides a current signal for the motor, and the motor outputs a speed signal;
an arithmetic selecting module connected to the motor and the motor driver, and configured for receiving a speed command, the speed signal and the current signal, and providing a first select command and a second select command;
a speed control loop configured for receiving the speed signal and the speed command, the speed control loop comprising:
at least two first arithmetic modules, wherein the at least two first arithmetic modules are configured for storing different arithmetic control processes respectively;
and
a first selector configured for receiving the first select command, the speed signal and the speed command, and selecting one first arithmetic module from the at least two first arithmetic modules of the speed control loop according to the first select command for processing the speed command and the speed signal;
wherein the speed control loop outputs a current command after the speed command and the speed signal are processed by the selected first arithmetic module of the speed control loop;
and
a current control loop configured for receiving the current signal of the motor driver and the current command from the speed control loop, the current control loop comprising:
at least two arithmetic modules, wherein the at least two second arithmetic modules are configured for storing different arithmetic control processes;
and
a second selector configured for receiving the second select command, the current signal and the current command, and selecting one second arithmetic module from the at least two second arithmetic modules of the current control loop according to the second select command for processing the current signal and the current command;
wherein the current control loop outputs a control signal for the motor driver after the current signal and the current command are processed by the selected second arithmetic module of the current control loop, to adjust the current signal of the motor driver, therefore to adjust the speed signal of the motor.

10 more elements

A motor driving device for driving a motor, comprising:

a motor driver configured for driving the motor, wherein the motor driver provides a current signal for the motor, and the motor outputs a speed signal;
an arithmetic selecting module connected to the motor and the motor driver, and configured for receiving a speed command, the speed signal and the current signal, and providing a select command;
a speed control loop configured for receiving the speed signal and the speed command, and comprising a first arithmetic module configured for storing a kind of arithmetic control processes to process the speed signal and the speed command;
wherein the speed control loop outputs a current command after the speed signal and the speed command are processed by the first arithmetic module of the speed control loop;
and
a current control loop configured for receiving the current signal of the motor driver and the current command from the speed control loop, comprising:
at least two second arithmetic modules, wherein the at least two arithmetic modules are configured for storing different kinds of arithmetic control processes respectively;
and
a selector configured for receiving the select command, the current signal and the current command, and selecting one second arithmetic module from the at least two second arithmetic modules of the current control loop according to the select command for processing the current signal and the current command;
wherein the current control loop outputs a control signal for the motor driver after the current signal and the current command are processed by the selected second arithmetic module of the current control loop, to adjust the current signal of the motor driver thereby adjusting the speed signal of the motor.

7 more elements

A motor driving device for driving a motor, comprising:

a motor driver configured for driving the motor, wherein the motor driver provides a current signal for the motor, and the motor outputs a speed signal;
an arithmetic selecting module connected to the motor and the motor driver, configured for receiving a speed command, the speed signal and the current signal, and providing a select command;
a speed control loop configured for receiving the speed signal and the speed command, wherein the speed control loop comprises:
at least two first arithmetic modules, wherein the at least two first arithmetic modules are configured for storing different kinds of arithmetic control processes;
and
a selector configured for receiving the select command, the speed signal and the speed command, and selecting one first arithmetic module from the at least two first arithmetic modules of the speed control loop according to the select command for processing the speed command and the speed signal;
wherein the speed control loop outputs a current command after the speed command and the speed signal are processed by a selected first arithmetic module of the speed control loop;
and
a current control loop configured for receiving the current signal of the motor driver and the current command from the speed control loop, and comprising a second arithmetic module configured for storing arithmetic control processes to process the current command and the current signal;
wherein the current control loop outputs a control signal for the motor driver after the current signal and the current command are processed by the second arithmetic module of the current control loop, to adjust the current signal of the motor driver thereby adjusting the speed signal of the motor.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/339,060Filed 19 Dec 2008
Priority: CN 200810305932.13 Dec 2008
Published: 3 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G05B 19/258
The positional error is used to control continuously the servomotor according to its magnitude: with a combination of feedback covered by…
H02P 29/00
Arrangements for regulating or controlling electric motors, appropriate for both ac and
H02P 23/0004
Arrangements or methods for the control of AC motors characterised by a control method other than vector control: control strategies in general,…
G05B
Control or regulating systems in general