To design and simulate a clamper circuit Design. 

   Function generator, CRO, Regulated Power supply, resistor, diode, connecting wires. 

 

clamper circuit design has been implemented on the virtual breadboard using following specifications:

·         Power Supply: +10v and -10v

·         Function generator: Selected wave with following specifications:

Frequency = 1KHz. 
Amplitude: 5V 
Duty cycle = 50%

·         Resistor R₁: 1.39K

 

Clamper is a circuit that "clamps" a signal to a different dc level. A clamping network must have a capacitor, a diode and a resistive element. The magnitude R and C must be chosen such that the time constant RC is large enough to ensure that the voltage across the capacitor does not discharge significantly during the interval the diode is non- conducting. 

The circuit for a positive clamper is shown in the figure. During the negative half cycle of the input signal, the diode conducts and acts like a short circuit. The output voltage V_o = 0V. The capacitor is charged to the peak value of input voltage V_m. and it behaves like a battery. During the positive half of the input signal, the diode does not conduct and

 

 

1.     Connect the circuit as shown in the circuit diagram.

2.     Give the input signal as specified.

3.     Switch on the power supply.

4.     Note down the value of AC and DC voltages from the CRO

5.     Draw the necessary waveforms on the graph sheet.

 

 

1.     Observe the output waveform from CRO.

2.     Measure the value of AC and DC voltages of the output and the input waveforms from the CRO.

3.     Observe and compare the maximum and minimum vltages of the input and output waveforms. 

From the Output waveform the following parameters has been observed and tabulated down below:

VoltagesInput VolatgeOutput VoltageMaximum0.23V2.72VMinimum-4.96V-2.59V

 

The Clamper circuit design output waveforms have been studied and the required parameters has been compared. 

 

1.     Connections should be verified before clicking run button.

2.     The resistance to be chosen should be in Kohm range.

3.     Best performance is being obtained within 50Hz to 1Mhz.