13 8 Regulated Power Supply Schematic

I used 2n3771 devices 50v 20a 200w simply because i had a whole bunch of them in my junk.

13 8 regulated power supply schematic.

The circuit in figure 2 senses when the voltage exceeds 15 volts and causes the zener diode to conduct. This is power circuit that has maximum current supply 22 ampere and output voltage 13 8 volt trimmed by p1. How to build 10 amp 13 8 volt power supply. The optional circuit in figure 2 will give you that extra peace of mind when a very expensive radio is used with the power supply.

The voltage is adjustable and it even has remote voltage sensing which automatically compensates for any voltage drop that occurs between the power supply and the load transceiver. The power supply circuit is shown in figures 1 and 2. Build a 10 amp 13 8 volt power supply. This is very important.

Part list for 20 amp bdx33 based power supply. 2 x 15 volt 12 amps. The transistors are not critical. A good idea here is to start to use colour coded wire to identify the voltage rails perhaps orange for the un regulated supply red for the 13 8 volt regulated output and black for negative rail.

When the zener diode conducts the gate of the scr is turned on and. The optional circuit in figure 2 will give you that extra peace of mind when a very expensive radio is used with the power supply. A 7812 positive 3 terminal regulator is used for the main regulation and this is followed by as many power emitter followers as needed for the current you require. You are now ready to couple together all the parts of the power supply to make one complete unit the main wiring diagram is shown in figure 6.

There s a really good 13 8 volt 30 amp power supply circuit diagram in the arrl handbook with clear instructions on how to build it.