Transistorized Voltage Regulator (Zener & Transistor)

Transistorized Voltage Regulator (Zener & Transistor)

Transistorized Voltage Regulator Why use a transistorized voltage regulator? If we use a half or a full-wave rectifier we can convert an AC voltage in a DC one.┬áThis converted voltage is unregulated, because the output voltage is not constant and can change due to variations of the load value. To reduce these variations we connect […]

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Current Limiter for Voltage Regulator using Transistor

Current Limiter for Voltage Regulator using Transistor

Current Limiter for Voltage Regulator using Transistor

If the current required in the load exceeds the maximum allowed, the voltage regulator can be damaged. To avoid this problem it is necessary to have over current protection.

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12V Power Supply using Zener and 741 Op. Amp.

12V Power Supply using Zener and 741 Op. Amp.

12V Power Supply using Zener and 741 Op. Amp.

This 12V Power Supply has, as its main characteristic, a low output impedance. This is a very desirable feature in voltage sources and is achieved with a large open loop gain that the operational amplifier has.

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