Diode Voltage Clamp Circuit. In the figure below a the clamp voltage is 0 v ignoring diode drop more exactly 0 7 v with si diode drop. Actually the positive and negative peaks of the signals can be placed at desired levels using the clamping circuits.
The voltage provided by the capacitor operates like a battery connected in series with the input signal. This circuit not only protects the load side circuit but also regulates the input supply voltage to maintain a steady voltage. Actually the positive and negative peaks of the signals can be placed at desired levels using the clamping circuits.
The important points regarding clamping circuits are.
A diode clamping circuit may be used to limit the output voltage to a particular range. In the figure below a the clamp voltage is 0 v ignoring diode drop more exactly 0 7 v with si diode drop. Circuit diagram for overvoltage protection using zener voltage regulator circuit is given below. When the diode is conducting it acts as a short circuit and the output voltage across the load will be vload 0 volts.
