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Over-Speed Indicator

Over-Speed Indicator

3

2

7

4

6

-

+

IC1

CA3140

N2

4

5

6

7

N1

2

1

3

14

M

D1

D3

D2

D4

R5

470Ω

LED1

LED2

R3

10K

ZD1

5.1V

R2

10K

R6

10K

R9

470Ω

LED3

PZ1

PIEZO

BUZZER

+

R8

100K

VR1

47K

C1

1000μ

25V

R7

10K

+12V

OVER

SPEED

FORWARD

REVERSE

M1 = 12V DC MOTOR

IC2 (N1, N2) = 74LS08
D1-D4 = 1N4007

R1

1K

R4

470Ω

Over-Speed Indicator

0
0
0
publish time: 2020-09-22
Kiraaaa

This circuit is used to indicate car motor overspeed, rotation direction mini hand tools, water pump motors, toys and other appliances.

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