Скачать или смотреть How do you reduce 12V DC to 9V DC?

The working of this circuit is very simple. The heart of this circuit is an LM7809 voltage regulator IC. A DC input signal of 12V is taken from a DC power supply. This signal goes to smoothing capacitors C1 (1000uF/25V) & C2 (10uF/25V) to remove any residual noise before going onwards to the LM7809 voltage regulator IC.

The LM7809 IC produces a constant 9V DC signal. The output signal goes through smoothing capacitors C3 (1uF/16V) & C4 (0.1uF/16V) to remove any extra noise before moving on towards the output.



Basic Knowledge of Electrical and Electronics Engineering


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