Positive Biased Clamper. When the signal moves upward as shown in figure a the negative peak of the signal coincides with the zero level. This current or voltage will flows to the capacitor and charges it.
Clamping Circuit Electrical4u from www.electrical4u.com
Symbol points downwards biased clamper circuits basically just add a battery in series to our diode which is connected in parallel to a. The circuit diagram and waveform is shown in the figure below. During the positive half cycle the battery voltage forward biases the diode while the input supply voltage is less than the battery voltage.
The circuit diagram and waveform is shown in the figure below.
Initially when the input is given the capacitor is not yet charged and the diode is reverse biased. Positive clamper with bias. A biased clamper means that the clamping can be done at any voltage level other than zero. Positive clamper the circuit will be called a positive clamper when the signal is pushed upward by the circuit.
