Difference Between Positive And Negative Clamper. The circuit will be called a positive clamper when the signal is pushed upward by the circuit. Clamper requires battery diode and capacitor.
If the circuit pushes the signal upwards then the circuit is said to be a positive clamper. The circuit will be called a negative clamper when the signal is pushed downward by the circuit. Positive clamper will shift output waveform in upward direction whereas negative clamper will shift output waveform in downward direction.
The clipper and clamper circuits are exactly opposite to each other regarding their working principle.
When the signal moves upward as shown in figure a the negative peak of the signal coincides with the zero level. If the circuit pushes the signal upwards then the circuit is said to be a positive clamper. During the positive half cycle the diode will be non conducting such that the output is equal to capacitor voltage and input voltage. The shape of the output waveform remains same as input waveform.
