In particular, the falling ramp may be made very fast, giving a good
approximation to a sawtooth waveform, by using a high-speed switching
device in order to discharge the integrating capacitor rapidly. A switching tran-
sistor may be used for this purpose, as described in detail by Jung (1986, 484-
86).
4.3 Sine
Wave
Oscillators
Circuits in this category are characterized by positive feedback giving a closed
loop gain very close to unity and by a frequency-sensitive network which
ensures that the required conditions for oscillation are satisfied only at the
required frequency. Many configuration ...
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