LM78XX Positive Regulators Universal PCB for PSU

The 78XX family is ideally suited for this job, and with this little PCB you can easily build small Power Supplies for virtually every application.

The circuit is very simple:

The Alternating current is applied to X1 and rectifies by B1.

It charges a large Capacitor C1 to power the regulator.

The output voltage depends on the Regulator you use, e.g. 7805, 7812,7815…

Dimensionierung:

C1:4700u, with sufficient voltage Rating!

C2:0.33u

C3:0.1u

Download this schematic diagram.

For download layout on PCB, pleace click here.

Datasheet semiconductor download. (PDF Format)

1. LM78XX

2N3055 Simple inverter 5W

This simple inverter. The main aim of this circuit is to provide a suitable supply for all kind of low power battery chargers that normally connect to the mains such as mobile phones, electric shavers, etc, even an electronic neon light rated at 5W was successfully connected. Only easily obtainable components are used.


Download this schematic diagram.



Download list datasheet semiconductor parts. (PDF Format)

1. 2N3055

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