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BLINKING LED USING BC547 IN PROTEUS
Автор: AJ ELECTECH
Загружено: 2018-01-23
Просмотров: 4882
Описание:
This is a simple flashing led circuit with 2 leds and 2 NPN transistors.
It illustrates the behavior of transistors and capacitors and if you use an oscilloscope it will be very easy to determine what happens in this astable multivibrator circuit. It’s state is constantly changing and this change affect the flow of current and voltage and the effect will be visible with the two leds.
Components values
R1 – 470 Ohm
R2 – 470 Ohm
R3 – 3.9 kOhm
R4 – 3.9 kOhm
P1 – 50 kOhm
C1 – 47 μF / 16V
C2 – 47 μF / 16V
T1 – BC 547 B
T2 – BC 547 B
D1 – LED Standard , 5 mm , red
D2 – LED Standard , 5 mm , red
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