9 Volt 2 Amp PSU with 78S09


Posted on Jul 21, 2012

The circuit will work without the extra components, but for reverse polarity protection a 1N5400 diode is provided at the input, extra smoothing being provided by C1. The output stage includes C2 for extra filtering, if powering a logic circuit than a 100nF capacitor is also desirable to remove any high frequency switching noise.


9 Volt 2 Amp PSU with 78S09
Click here to download the full size of the above Circuit.

There is little to be said about this circuit. All the work is done by the regulator. The 78S09 can deliver up to 2 amps continuous output whilst maintaining a low noise and very well regulated supply.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Tiny Tuned Loop Antennas
    10F8-channel-transmission-system
    Stabilized-capacitance-buffer
    Wireless-fm-microphone
    Cassette Motor Speed Calibrator
    H Bridge Qik 2s12v10 Dual Serial
    bluetooth circuit in mobile phones
    Processor Fan Control
    dome light dimmer cars
    Precision Triangular-Wave Generator Uses a Single IC
    Stand-alone Arduino
    The basic circuit diagram of a constant current source mirror
    Using an inverter transistor monostable circuit diagram
    Telephone electronic lock circuit



    Top