Circuit for detecting and controlling simultaneous conduction of

Details Circuit for detecting and controlling simultaneous conduction of Circuit for detecting and controlling simultaneous conduction of

1978-05-10

1980-07-15

Grimm, Siegfried H.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

375 22, 332 10, 363 56, 363 98, 363132, H03K 710, H02M 748

Patent

active

042131030

ABSTRACT:
A switching system is described for use in for example AM transmitters comprising at least one pair of semi-conductor output switches connected in series across an AM modulated D.C. supply and arranged to be operated sequentially by a series of "on" and "off" command signals to energize a load, such as an antenna. The circuitry provides a delay interval between the "off" command to any one switch and the "on" command to the next switch in the sequence. Means are provided for detecting when two successive switches in the sequence conduct simultaneously, and means are provided for increasing the duration of the delay interval when such simultaneous conduction is detected.

REFERENCES:
patent: 3737755 (1973-06-01), Calkin et al.
patent: 3783304 (1974-01-01), Fox
patent: 3859583 (1975-01-01), Reed
patent: 3859586 (1975-01-01), Wadlington
patent: 4126819 (1978-11-01), Stobbe et al.

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