Question

whats wrong with figure 10

al Base Waveform Clipper. A diode in parallel with a large capacitor may be used for Ve for repetitive input waves Id Waveforms illustrating the clipping of a Sine Wave, (b) Base Waveform Clipper With Bias supply returned to ground. For good clipping action Rs must be much larger than RL Figure 9 - Base Waveform Clippers and Waveforms. Clippers may be combined in various ways. A particularly important combination is illustrated in Figure 10. Here the combination of diode D. resistance Rs. and bias VA serves as a peak clipper, while diode D2 in association with bias V8 simultaneously functions as a base clipper. The result is that all input voltages in excess of VA arc clipped in such a manner as to produce an output voltage having a value VA - VB, while all values of input voltage that are less than Ve are reduced to zero amplitude in the -output. An arrangement of this type is termed a slicer, since the output wave can be regarded as consisting of a slice of the input waveform. In these circuits, the diode and battery potentials may be reversed in order to have clipping occur above or below any point on a waveform. SOT Flyo 00 tv, Figure 10 - A Slicer C cuit with Waveforms Showing the Behavior for a Sine Wave Input 123

Answer 1

According to the circuit given it can be understood by seeing when the diodes are on and off.

Depending on the states of the diode the output can be calculated and the waveform can be obtained.

The current shown is,

For the given input waveform there exist three different cases to get output.

Anording to the waveform shown, O avin Etat -- VA ----7--VB SVAY VB There are three ② Vin TVA. different cases existing here... ve vin <VA ® Vin < VB

The different cases are discussed below to see the understand the output waveform.

For lase – von >VA. : Diode Di and als will. conduct and output Voltage No=VA-VB ]

For case 2, the same output as input will be observed with a dc shift.

For lase - ® Vo<vin <VA. - Rs ruu a vbi D. ltie Ve 1 Vo VA d only diode D₂ Conducts The output will be shifted by vo but nature remains Cé. Same ilp as output with Some do shift- game. . Pleas output . Forcase - ven (VB ! DZ VA 4 h e EDI . vo T No diode Londents so the output Becomes hero. le sliced by VB. output waveform casell case ② ylase vo la m