A Voltage-Controlled Free-Running Multivibrator Using a Pair of Regenerative Switches

A voltage-controlled free-running multivibrator is described. In the new circuit use is made of two bistable regenerative switches connected by a single timing capacitor to realize an astable multivibrator. The circuit provides rectangular output waveforms of very short rise and fall times over a wi...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 1974-01, Vol.23 (1), p.15-17
Main Authors: Basu, Dipak K., Dattagupta, Rana, Das, Pradip K.
Format: Article
Language:English
Subjects:
Capacitors
Chirp modulation
Frequency
Pulse circuits
Resistors
Switches
Switching circuits
Timing
Trigger circuits
Voltage control
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Description
Summary:A voltage-controlled free-running multivibrator is described. In the new circuit use is made of two bistable regenerative switches connected by a single timing capacitor to realize an astable multivibrator. The circuit provides rectangular output waveforms of very short rise and fall times over a wide range. Low output impedance of the regenerative switches permits driving large resistive and capacitive loads. Among other features of the circuit are the facility of logarithmic or linear variations of frequency by a modulating control voltage, its sure-starting nature, and its integrability.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.1974.4314209