Apr 28, 2014 · The PWM frequency should be selected so that it does not create too much current ripple in the motor windings. Current ripple results in heating of the motor. In theory there is no …

Jan 1, 2006 · I still don't understand how to select the "right" PWM frequency for a brushed DC motor. I have made some measuremens and the torque is increasing with lowering the PWM …

Mar 6, 2012 · The new drivers work great accept the motors are now very noisy. When I change the frequency of the PWM in my code, the frequency of the sound also changes on the motors …

Oct 23, 2019 · Edit: Some of you guys will have a problem believing this, I installed Pwm.h from github, changed the pwm freq to 200,000, set the duty to 127, connected my fluke …

Dec 31, 2009 · On an earlier thread, FET Killer, we got into proper PWM Frequency for driving a motor some what. It was suggested to stay above ~ 20KHz so you wouldn't hear the buzz from …

Jan 1, 2006 · hobbist PWM frequency datapoint for tamiya motor Here is a datapoint on PWM frequencies to use with tamiya motors. I ran one of the motors from the Tamiya edge following …

Apr 23, 2011 · PS.note : Question is pertaining dc motor speed and direction control using 8086 uP ,8255,8254 and JK flip flop According to our Microprocessor textbook,it is said that while …

Jun 6, 2009 · Depending upon the 'freq' of the PWM, as its not locked to the mains, sometimes when the PWM says ON, the 50Hz could be passing thru a zero portion of the mains sinewave …

Sep 4, 2010 · Im using 20Khz pwm with an 18.3V supply, and each vertical division represents 10V on my scope. I've shown plots for pwm commands of: 0,250,500,1000,2000,3000 and …

Oct 25, 2007 · But assuming you're using PWM for an amplifier, and you're wanting the filtered output to have a good frequency response (say 20KHz for audio), then using 100KHz for the …