10 V Regulated Power Supply

335

05:50:48

Here is a power supply design with built-in short circuit protection. The Zener diode on the Diff pair is being used as a reference voltage to determine the output voltage. There is a pass transistor Darlington pair that serves as a voltage regulator from sampling the current at the output to vary the collector to the desired output voltage using feedback. The resistor in the upper right hand corner connected to an emitter controls the output current under short-circuit conditions.

published 7 years ago

hurz

7 years ago

Needs a lot of work to be a regulated power supply

matt2496

7 years ago

Do you have any suggestions?

jason9

7 years ago

Look at this: http://everycircuit.com/circuit/5521138108334080 To make it single-phase, all you have to do is replace the three-phase bridge-rectifier with a single-phase one and change the transformer ratio to 20:100. If you can’t see the circuit in the link properly, just take the number part of the link and put it in the EveryCircuit search box.

cspanbauer

7 years ago

That is a pretty good start. Have you built and test?

jason9

7 years ago

No. Unfortunately, in real life, I am very limited and all I have are two general purpose PNP transistors, one general purpose NPN transistor, an audio transformer, 3 diodes (they might be able to take the reverse voltage but not sure, and one or two are germanium, the other one or two being silicon), and a bunch of resistors and capacitors of various values. No power transformer to step down the mains voltage or large smoothing capacitor (my biggest is 470uF, if I remember correctly)

hurz

7 years ago

Put it into your userprofile, please

rich11292000

7 years ago

Get a de-soldering iron/sucker.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.