Small Size Power Supply 5-12V

Compact power supply 5VThe proposed unit is designed for AC power small electronic devices (handheld radios, tape recorders, watches, etc.). The output voltage can be selected within the range of 5 to 12 V. One of the advantages of unit – small size: all its parts are placed in the body … mains plug.

Parts list :
R1 : 62 Ω
R2 : 220K
R3 : 300K
R4 : 1K3
R5 : 470Ω
R6,R7 : 220Ω
R8 : 470Ω
R9 : 100K
C1 : 10uF/160V
C2 : 470uF/16V
C3 : 0.33uF
VD1 : KU407A
VD2,VD3 : KD522A
VD4 : KC191
VT1 : KT940A
VT2 : KT3130A
VT3,VT4,VT5 : KT940A
DA1 : 78L05

More details :

Power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a power supply is to convert one form of electrical energy to another and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

Tags: 5v power supply compact power supply radio psu small size power supply tape recorder psu watches power supply

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