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Long-Range IR Transmitter

Long-Range IR Transmitter

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VR1

10K

R1

10K

S1

PUSH-TO-ON

SWITCH

R2

10K

C1

390P

T2

BC557

T1

BC547

T3

BS170

IR3

S2

ON/OFF

SWITCH

C2

100μ

25V

9V

BATT.

R3

2.2K

R4

10Ω

0.5W

IR1-IR3 = INFRAED TRANSMITTING LED

S

G

D

IR2

IR1

14

10

5

12

6

IC1

CD4047

4

2

1

8

7

9

3

DATA

Long-Range IR Transmitter

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publish time: 2020-09-29
Circuit Everyday

Most infrared remote controls can work within 5 meters. If the infrared transmitter is designed to operate reliably in a longer range (for example, 10 meters), increasing the distance from 5 meters to 10 meters requires four times the transmission power.

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