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Easy Power Supply Regulator 3.3V 1A with PNP Transistor

2016-04-27 09:13  
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The is Fix dc voltage regulator about 3.3V at 1A,so easy very circuit.
I used normal electronics part,so used PNP transistor 2N456 or TIP42 or TIP2955,etc.
If do you want other dc voltage,you must change ZD1 : 5.6V for 5V out put.
I made use of a 6.3Vac transformer,The output of the transformer is rectified and smoothed using 1500uF or 2200uF capacitors.
The float-voltage measured here for the 6.3V transformer was 8.4V.
The unregulated DC is regulated by the Q1 PNP Transistor and ZD1 to give the regulated supply rails for the circuit.

If do you want detail more,please read in image circuits.

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