Oscillators – Relaxation oscillators
Patent
1981-08-26
1984-08-28
Grimm, Siegfried H.
Oscillators
Relaxation oscillators
331153, 331172, H03K 3023
Patent
active
044686374
ABSTRACT:
An oscillator unit having a charge storage device periodically rapidly charged through a small resistor and slowly discharged through a large resistor under control of a comparator for producing an oscillatory output and a switch actuatable by means of a frequency controlled zero-crossing multiplier to selectively discharge the storage device and thereby repeatedly resynchronize the oscillator unit with the frequency input to the multiplier.
REFERENCES:
Graeme, Applications of Operational Amplifiers, 1973, pp. 154-165.
Burkhardt James
Wray William R.
Grimm Siegfried H.
Polaroid Corporation
Thornton David R.
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