Don Murphy
- Mar 14, 2017
- 5
- Joined
- Mar 14, 2017
- Messages
- 5
I have a slightly unusual application which involves a generator that's being deliberately shorted across a resistor with some mosfets. The purpose is to create a controlled variable mechanical load. I need to limit the output of the generator to 30 volts to prevent damage to some of the machine's sensitive components (which burn about 70W). It's well past the limits for a simple zener diode set-up. I was thinking that an open looped op amp comparator driving some transistors might work but it's a complicated option. If there's a simpler way, that would be great. I don't care what the generator is producing up to the thirty volts......I just can't exceed the thirty volts. If anyone knows of a simple solution to this, I'd appreciate all the feedback I can get.