This is circuit of Adjustable supply Power Supply , are very simple in the manufacture, the finding of his materials , is very easy and cost, small. The output voltage is stabilised and is regulated in the region from 0V until 18V dc, with biggest provided current 1 A. The regulation of voltage, of expense becomes with potentiometer R2. The Q1 (2N3055) of is classic power transistor and it needs it is placed in heatsink, one and heating when it works continuously in the region of biggest current. The type of transformer is standard in the market.
Rangkaian 0- 18 V Adjustable Power SupplyComponent list
- R1 : 56ohm/2Watt Resistor
- R2 : 330ohm Lin. pot
- C1 : 2200uF/35V elektronik capasitor
- C2 : 100uF/35V elektronik capasitor
- C3 : 10uF/25V elektronik capasitor
- C4 : 220uF/25V elektronik capasitor
- C5 : 100nF Ceramic capacitor
- GR1 : 4 X 1N4007 1 A Diode
- Q1 : 2N3055 BPN Transistor
- T1 : 18V/1.5A Transformator step-down
- D1 : 18V 1.5W zener diode
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