# High amperage Constant Current pwm

Thread Starter

#### jfrankki

Joined Jan 14, 2014
1
Hello everyone, I am looking for a very good schematic for a 100amp to 200amp CONSTANT CURRENT PWM with a 12vdc to 15vdc range.

Can anyone help me

#### Sensacell

Joined Jun 19, 2012
2,567
What is your application?

200 A @ 15V is 3 kW -

#### WBahn

Joined Mar 31, 2012
25,277
How is the current constant if it is pulse-width modulated?

Do you mean where the average current is constant?

That's easier said than done since even small inductances will make holding average current tricky.

What are your performance specs? In other words, how "constant" (on average) is "constant enough"?