Variable segmented ramp voltage synthesizer

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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Details

307229, 328183, H03K 386, G06G 712

Patent

active

041975090

ABSTRACT:
A variable segmented ramp voltage synthesizer is disclosed as including a ster pulse generator and a plurality of series connected one-shot multivibrators connected to the output thereof for producing a like plurality of gating signals. In response to said gating signals, a like plurality of successively increasing voltages, effected by a given positive direct current voltage source and appropriately different resistances, are gated into a constant current generator. The output signal from said constant current generator is substantially stair-step in waveform, and it is supplied to a predetermined, relatively large capacitance for the charging thereof with respect to another direct current voltage that is more negative than the aforementioned positive direct current voltage. The charging thereof occurs as serially connected substantially linear segments, the ramp-like slopes of which are proportional to the RC time constants effected by the aforesaid resistances in successive combinations with said capacitance, respectively. An electronic switch timely discharges said capacitance in response to the master timing pulses produced by said master pulse generator, so as to produce flyback in preparation for synthesizing another sawtooth signal cycle. A circuit isolation buffer amplifier is optionally connected to the effective output of the aforesaid capacitance.

REFERENCES:
patent: 2831107 (1958-04-01), Raymond et al.
patent: 3031583 (1962-04-01), Murphy

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