A simple power supply 220/5 volts 0,5 amps. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Power Supplies
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The power supply is designed to supply a stabilized voltage of 5V to various digital devices with a current consumption of up to 0,5 A. The T1 transformer is made on the SHL20X32 magnetic circuit. The network contains 1650 turns of PEV-1 wire d=0,1 mm, winding II - 55 turns of PEV-1 d=0,47. In general, for the power supply, you can use a suitable ready-made transformer with a power of 7 W, which provides an alternating voltage of 8 ... 10 V at a current of at least 500 mA on the winding II.
The regulating transistor VT2 is mounted on an L-shaped duralumin plate measuring 50x50 and 2 mm thick.
Publication: cxem.net
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