Circuit for generating a trigger blanking voltage for use in an

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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307273, H03K 504

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active

039708721

ABSTRACT:
A circuit for generating a trigger blanking voltage for use in the analysis of the ignition voltage waveform of an internal combustion engine which includes a trigger controlled monostable multivibrator furnishing a speed dependent blanking pulse, the width of which is made a function of speed using a capacitor charging circuit coupled to the output of the monostable with feedback of the capacitor voltage to an external circuit determining the duration of the unstable state of the monostable.

REFERENCES:
patent: 3646370 (1972-02-01), Lowe
"Pulse Train Frequency Varied as Duty Cycle Stays Constant" by Ross, Electronics, July 21, 1969, p. 84.
"Duty Cycle Constant at any Trigger Frequency" by Klein in Electronics, July 26, 1965, pp. 62-63.

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