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PC Timer

PC Timer

COM

IC1

7809

1

3

OUT

2

IN

Y

B

B

R

+

+

+

C4

100n

C3

100μ

25V

C2

100n

C1

100μ

25V

D1

1N4007

+12V

DC 12V

INPUT

FROM

SMPS

+5V

R1

470Ω

LED1

C5

100n

R4

100K

R3

100K

R2

470K

R5

2.7K

SCR1

BT169

RL1

RELAY

O/P

D2

1N4007

C6

25V

R7

470K

S1

ON/OFF

SWITCH

R6

47K

10

IC3

CD4093

6

9

13

5

8

1

14

12

4

7

2

3

11

GND

Vcc

9

IC2

CD4060

12

3

15

11

10

8

Q1

POWER

K

G

A

N/C

N/O

TRIGGER

RL1 = 9V, 1C/O RELAY

PC Timer

Vcc

GND

1
1
0
publish time: 2020-09-25
Circuit Everyday

Mainly used to install in desktop computers, this multi-function timer has an adjustable time function. It can be used for PC peripherals such as reading lights, printers, scanners, and desktop computers, and provides a controlled "turn on" time. Since it is designed for 12V input voltage, it should have a wide range.

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