Pay
Automatic Soldering Iron Switch

Automatic Soldering Iron Switch

+

+

+

R3

1K

LED

FLASHER

RL1 = 12V, 200Ω 2C/O RELAY

D1-D4 = 1N4001

S1 = PUSH-TO-ON-SWITCH

D1

R1

10M

C2

100μ

25V

C1

470μ

25V

N/O2

N/C2

220V AC

50HZ

SOLDERING IRON

PZ1

PIEZO-

BUZZER

C3

1000μ

35V

T1

BC548

R2

10K

N/C1

D3

N

L

X1 = 230V AC PRIMARY TO 9V-0-9V, 200mA

SECONDARY TRANSFORMER

S1 = PUSH-TO-ON SWITCH

S1

D2

S

P

RL1(b)

D4

N/O1

RL1(a)

RL1

4

GND

IC1

NE555

8

6

2

1

VCC

3

Automatic Soldering Iron Switch

3
1
0
publish time: 2020-09-22
Kiraaaa

We often forget to turn off the soldering iron. This not only leads to inhalation of iron oxide but also wastes electricity. To solve this problem, the circuit here will automatically turn off the soldering iron after a predetermined time. No power is consumed when the circuit is turned on. The circuit can also be used to control electric irons, kitchen timers, or other appliances.

See More Related Templates