Answer.3. clipper circuit

• A limiter circuit is also known as a clipper circuit.
• A clipper is a device that removes either the positive half (top half) or negative half (bottom half), or both positive and negative halves of the input AC signal.
• The clipping (removal) of the input AC signal is done in such a way that the remaining part of the input AC signal will not be distorted
• In the below circuit diagram, the positive half cycles are removed by using the series positive clipper.

Answer.1. Clamper 

• A Clamper circuit can be defined as a circuit that consists of a diode, a resistor, and a capacitor that shifts the waveform to the desired DC level without changing the actual appearance of the applied signal.
• Clamper circuits is used to add a DC offset to the waveform.
• In order to maintain the time period of the waveform, the tau must be greater than, half the time period (discharging time of the capacitor should be slow)

Answer.1. Clamper

• A Clamper circuit can be defined as a circuit that consists of a diode, a resistor, and a capacitor that shifts the waveform to the desired DC level without changing the actual appearance of the applied signal.
• In order to maintain the time period of the waveform, the time constant (RC) must be greater than half the time period (discharging time of the capacitor should be slow).

Answer.3. Both 1 and 2

• A clamper is an electronic circuit that changes the DC level of a signal to the desired level without changing the shape of the applied signal.
• The Clamper circuit moves the whole signal up or down to set either the positive feedback or negative feedback of the signal at the desired level.

Answer.4. Introduce a DC level to an ac signal

• A Clamper Circuit is a circuit that adds a DC level to an AC signal.
• The shape of the output waveform does not change in Clamper circuits.
• Since the clamper circuit adjusts the DC level of the waveform as shown in the following figure, it is called a DC restorer.

Answer.2. add AC signal with DC

A Clamper Circuit is a circuit that adds a DC level to an AC signal.

Since the clamper circuit adjusts the DC level of the waveform as shown in the following figure, it is called a DC restorer.

Answer.4.

The capacitor is getting charged, and applying KVL around the loop, we can write:

V_i – V_c – 1 = 0

V_c = V_i – 1

V_c will charge to the maximum voltage possible, i.e.

V_{c max} = V_{i max} – 1

V_{c max} = (4 + 10) – 1

V_{c max} = 14 – 1 = 13 V

Once V_c becomes 13 V, the current flow in the circuit becomes zero & V_c remains constant at 13 V as there is no discharging path given in the circuit.

In an op-amp clipper circuit, a rectifier diode is used to clip off certain portions of the input signal to obtain a designed output waveform.

The clipping level is determined by the reference voltage which should be less than the input voltage range of an op-amp.

In a positive clipper, the diode conducts until V_in = V_ref (during the positive half cycle of the input), because when V_inref, the voltage (V_ref) at the negative input is higher than that at the positive input.