软启动扬声器保护电路

材料BOM表

R1=22Kohm
R2-3=390Kohm
R4=470Kohm
R5=1Mohm
R6-7-8-9-10-12=10Kohm
R11=820 ohm
C1-2-3=47uF 63V
C4-5=100uF 25V
Q1=BC560C
Q2-3-4=BC550C
Q5=BD139
D1-2-3=1N4148
D4=Green 5mm Led
D5=Red 5mm Led
IC1=TL071
RL1=Relay 12VDc Omron G2R2
J1=3pin connector with 2.54mm step
J2=2pin connector with 2.54mm step
J3=2pin connector with 3.96mm step