Practice Exercise cont'd

Timing Circuits
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27

Figure 14. Square wave

Assume that a sawtooth waveform with a fundamental frequency of

50 kHz, a rise time of 8 microseconds, and a decay time of 2

microseconds is applied to a circuit. To reproduce the sawtooth

waveform, the upper bandwidth limit of the circuit should be

equal to

25 kHz.

50 kHz.

100 kHz.

250 kHz.

Since the voltage used for timing an electronic circuit must be

a sharp pulse, the output of a sinewave master oscillator timer

is shaped or distorted by using

a clipper, a cathode follower, and a rectifier.

an overdriven amplifier, a peaker, and a clipper.

a buffer amplifier, a multivibrator, and a peaker.

an isolation amplifier, a blocking oscillator, and a Class

A amplifier.