Jul 12, 2013 #1 B btahir90 Junior Member level 2 Joined May 27, 2012 Messages 22 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,457 I am working on a project which is Automatic voltage regulator of fenerator using field contol through PWM problem is what should be the frequency of PWM generator draws 1 A at 50v dc field at full load and 0.5 A 19 v at no load. my idea is to choose a mosfet and a diode to prevent transients. pwm directly from microcontroller. would it work?
I am working on a project which is Automatic voltage regulator of fenerator using field contol through PWM problem is what should be the frequency of PWM generator draws 1 A at 50v dc field at full load and 0.5 A 19 v at no load. my idea is to choose a mosfet and a diode to prevent transients. pwm directly from microcontroller. would it work?
Jul 16, 2013 #2 ArNvC Full Member level 4 Joined Feb 25, 2013 Messages 201 Helped 55 Reputation 112 Reaction score 52 Trophy points 1,308 Location India Activity points 2,324 What are the specifications of the motor you are using? my idea is to choose a mosfet and a diode to prevent transients. Click to expand... where is your circuit?
What are the specifications of the motor you are using? my idea is to choose a mosfet and a diode to prevent transients. Click to expand... where is your circuit?
Jul 17, 2013 #3 B btahir90 Junior Member level 2 Joined May 27, 2012 Messages 22 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,457 its not a motor its an alternator of 2.5kw . i need to control its terminal voltage with field current. - - - Updated - - - here is cicuit diagram mosfet using is IRF740 frequency to choose is 1kHz. Attachments PWM circuit.jpg 20.9 KB · Views: 80
its not a motor its an alternator of 2.5kw . i need to control its terminal voltage with field current. - - - Updated - - - here is cicuit diagram mosfet using is IRF740 frequency to choose is 1kHz.
Jul 18, 2013 #4 ArNvC Full Member level 4 Joined Feb 25, 2013 Messages 201 Helped 55 Reputation 112 Reaction score 52 Trophy points 1,308 Location India Activity points 2,324 Is the circuit working? your pwm frequency should be optimum where losses would be low