220V交流遥控测试仪电路

220V交流遥控测试仪电路材料BOM表：

R1 = 100R-1/2W

R2 = 47K

R3 = 47K

R4 = 100R-1/2W

C1 = 0.47uF-275V

C2 = 470uF-35V

C3 = 10uF-25V

D1 = 1N4007

D2 = 1N4007

D3 = TL431

B1 = Piezo Buzzer

IR1 = TSOP1738