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D1
Q1
D3
D4
R2
Resistance
470 Ω
I1
C3
Capacitance
1500uF
C2
Capacitance
100nF
U1
C1
Capacitance
10uF
R1
Resistance
100 Ω
IC1
Z1
D5
transient suppression diode

switch mode power supply

switch mode power supply thumbnail