Regulated power supply ...

235

03:54:27

... with an operational amplifier. A full power supply without current limiting and low output noise. At the left end you see a sine source representing the secondary side of a transformer. The current goes through a bridge rectifier and charges a capacitor which stores the energy. It's using an operational amplifier to stabilize the output and a darlington transistor to drive the current. And the best on this circuit: It works in reality!

published 12 years ago

hurz

12 years ago

And were does the power supply for the opamp comes from? The output is in your default setup higher than any available voltage in your system

Godlessmind

12 years ago

Sorry, my fault. I changed the opamp output voltage to max. 13V (that will be nearly the output voltage of an real opamp), the opamp should be supplied with the rectified voltage.

hurz

12 years ago

Ahora si. Now its good for 140mV@99% to about 11V@20% pot position with <=500mW load. Good job.

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