Electronic switching systems

Details Electronic switching systems Electronic switching systems

H - Electricity

03

K

328/193

H03K 7/10 (2006.01) H03K 5/02 (2006.01) H03K 5/151 (2006.01) H03K 7/08 (2006.01) H03K 17/66 (2006.01) H04B 1/16 (2006.01) H04B 1/04 (2006.01) H02M 7/48 (2006.01)

Patent

CA 1109129

ABSTRACT OF THE DISCLOSURE 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. A simultaneous conduction detection circuit is provided for detecting when two successive switches in the sequence conduct simultaneously. When simultaneous conduction occurs a signal is output from the detection circuit and input to a multivibrator to increase the duration of the delay interval when such simultaneous conduction is detected.

302803

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