Greetings all.
I am needing to power some short arc lamps that operate at voltages between 20 and 55 vdc and need to be current regulated- For ex. one lamp requires 56 vdc and 3.7 amps. I was thinking of using PWM to control current / voltage. Have seen several different types of PWM such as "distributed PWM" and others. Can someone explain the difference and perhaps why one would be better than another for said application?
Any suggestions? I was going to start by having a power inductor supply the proper peak voltage and able to source the current requirements- rectify and filter.... Is it then a simple matter of adjusting the PW to a switch of some type? was thinking of IGBT's?
I only know the very basics of power supply design- if you have any input or suggestions they are very welcome.
Thank you all.
David V.
I am needing to power some short arc lamps that operate at voltages between 20 and 55 vdc and need to be current regulated- For ex. one lamp requires 56 vdc and 3.7 amps. I was thinking of using PWM to control current / voltage. Have seen several different types of PWM such as "distributed PWM" and others. Can someone explain the difference and perhaps why one would be better than another for said application?
Any suggestions? I was going to start by having a power inductor supply the proper peak voltage and able to source the current requirements- rectify and filter.... Is it then a simple matter of adjusting the PW to a switch of some type? was thinking of IGBT's?
I only know the very basics of power supply design- if you have any input or suggestions they are very welcome.
Thank you all.
David V.