topic Re: UM10430 Fan PWM in LPC Microcontrollers

UM10430 Fan PWM

Kushal_Panchal — Fri, 12 Aug 2022 10:02:10 GMT

When i set the PWM zero it increasing the fanspeed it working fine above 20 pwm .

Re: UM10430 Fan PWM

xiangjun_rong — Mon, 15 Aug 2022 02:23:03 GMT

Hi,

I suppose that you use LPC1800 family, it has MotorCONPWM module, you use it to control motor.

Can you tell us the motor type you are using? do you control BLDC, PMSM or DC motor?

If you control a DC motor with a bipolar switching mode, it is possible to that you set the PWM duty cycle to zero, the DC motor speed will increase. In the bipolar switching mode, if you set the duty cycle of PWM in 50%, the DC motor will stall.

Hope it can help you

XiangJun Rong

Re: UM10430 Fan PWM

Kushal_Panchal — Mon, 22 Aug 2022 03:54:41 GMT

Thanks for your reply.

Yes its help me to resolve my problem.

Regards,

kushal