Tagged Questions
2
votes
1answer
137 views
Voltage regulator with op amp(negative feedback) and MOSFET
The schematic above is a very good voltage regulator, excepting the high power dissipation for Q1 (also I'd use an NPN instead of a PNP). Can I replace Q1 and Q2 with a high current n-mosfet and ...
8
votes
3answers
146 views
How to improve symmetry of +/-1 gain circuit?
In an attempt to have a square wave with a voltage-controlled amplitude, I've made this little circuit:
Unfortunately, when negating, it has a slight offset from -Vin.
I assume this is because ...
3
votes
3answers
405 views
Do two stage common emitter current amplifiers add or multiply?
So I've seen alot of explanations on two stage voltage amplifiers and how how their gains can be multiplied together. My question is when you are using a two stage common emitter amplifier for current ...
