The LM7805 takes in a voltage between 7 and 30 volts
and regulates it down to exactly 5 volts. The first capacitor takes out
any ripple coming from the transformer so that the LM7805 is receiving a smooth
input voltage, and the second capacitor acts as a load balancer to ensure
consistent output from the LM7805.
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| Figure7:LM7805 circuit diagram |
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