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Basic Positive High Voltage Regulator:

The Basic Positive High Voltage Regulator is shown in Fig. 2.114

Basic Positive High Voltage Regulator

For this type, output voltage varies from +7V to +37V and IL ≤ 150 mA.

The non-inverting terminal connected to Vref through R3 . Due to this arrangement the error amplifier acts as non-inverting amplifier.

The gain is

The output voltage is,

Basic Positive High Voltage Regulator

This is also called basic high voltage low current regulator.