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DRL_16F684_rev1
KL.15 /

D1 1 1N4148 C1 C2 33uF/35V

U1 LM 2931 AZ - 5.0 GND Vin Vout 3 C3 C4 1 2 3 4 5 6 7

U2

PIC 16F684 14 13 12 11 10 9 8 R2 22K C5 470nF/63V R3 10K R4 10K R1 22K C6 470nF/63V

470nF/63V

10uF/16V 470nF/63V

Vdd Vss RA5 RA0/AN0/C1IN+ RA4 RA1/AN1/C1INRA3/MCLR RA2/AN2 RC5/CCP RC0/C2IN+ RC4 RC1/C2INRC3/AN7 RC2

BUZZER1 R5 BC 337 - 40 Q1 PK12N40 R7 2k2 R6 1K F- 1 Fuse 1 4K7 +

2

Q2 BC 337 - 40 R9 470/0.5W D2 1N4148 R8 10K

Q3 IRF 4905

R10 1K R12 10K R13 22K C7 470nF/63V R11 2k2

Q4 BC 337 - 40

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