Stm32 control motor speed-CodePudding

Could you tell me how to control brushless dc motor speed? 0 v motor stop moving when 5 v when maximum speed PWM wave (don't)

CodePudding user response:

The

refer to the original poster Little_sugar response:

could you tell me how to control brushless dc motor speed? 0 v motor stop moving when 5 v at maximum (no PWM wave)

If 0 to 5 v control signal, can be directly with the AD op-amp, if it is a driving signal, the drive and control that you are doing, is in trouble,

CodePudding user response:

reference 1st floor GavinKing2010 response:

Quote: refer to the original poster Little_sugar response:
could you tell me how to control the brushless dc motor speed? 0 v motor stop moving when 5 v at maximum (no PWM wave)

If 0 to 5 v control signal, can be directly with the AD op-amp, if it is a driving signal, the drive and control that you are doing, is more troublesome,

thank??

CodePudding user response:

refer to the second floor Little_sugar response:

Quote: refer to 1st floor GavinKing2010 response:

Quote: refer to the original poster Little_sugar response:
could you tell me how to control the brushless dc motor speed? 0 v motor stop moving when 5 v at maximum (no PWM wave)

If 0 to 5 v control signal, can be directly with the AD op-amp, if it is a driving signal, the drive and control that you are doing, is more troublesome,

thank you?

if with the AD directly, please? The op-amp should be how to programming

CodePudding user response:

First of all, I want to know the working principle of brushless motor,
If using a single chip microcomputer control for drive, don't need PWM, many kinds of drive voltage as control input, generate its own three-phase PWM drive motor,
If you use the MCU brushless direct drive motor, PWM drive three bridge must be used to make the motor running,

CodePudding user response:

reference 4 floor fuchouzhe response:

first of all, the original poster to know the working principle of the brushless motor
If using a single chip microcomputer control for drive, don't need PWM, many kinds of drive voltage as control input, generate its own three-phase PWM drive motor,
If using a single chip microcomputer direct drive brushless motor, PWM drive three bridge must be used to keep the motor running,

thank you

CodePudding user response:

reference Little_sugar reply: 3/f

Quote: refer to the second floor Little_sugar response:

Quote: refer to 1st floor GavinKing2010 response:

Quote: refer to the original poster Little_sugar response:
could you tell me how to control the brushless dc motor speed? 0 v motor stop moving when 5 v at maximum (no PWM wave)

If 0 to 5 v control signal, can be directly with the AD op-amp, if it is a driving signal, the drive and control that you are doing, is more troublesome,

thank you?

if with the AD directly, please? Op-amp should how programming

Op-amp calculate good magnification, the adc output, development version routines,

CodePudding user response:

refer to 6th floor GavinKing2010 response:

Quote: refer to the third floor Little_sugar response:

Quote: refer to the second floor Little_sugar response:

Quote: refer to 1st floor GavinKing2010 response:

Quote: refer to the original poster Little_sugar response:
could you tell me how to control the turning speed of the brushless dc motor? 0 v motor stop moving when 5 v at maximum (no PWM wave)

If 0 to 5 v control signal, can be directly with the AD op-amp, if it is a driving signal, the drive and control that you are doing, is more troublesome,

thank you?

if with the AD directly, please? Op-amp should how programming

Op-amp calculate good magnification, the adc output, development version routines,

thank you

CodePudding user response:

Brushless dc need three-phase half bridge driver, single-chip microcomputer control algorithm,
0 to 5 v I guess is used for speed signal, use on-chip AD sampling, it drive signal output,

CodePudding user response:

Then use the dac