Harold Zaslav

US Patent:

40029328, Jan 11, 1977

Filed:

Oct 2, 1975

Appl. No.:

5/620478

Inventors:

Harold Zaslav - Anaheim CA

Assignee:

Hughes Aircraft Company - Culver City CA

International Classification:

H03K 1700

US Classification:

307265

Abstract:

Herein disclosed is a new and improved pulse modulator comprisng first current gating means for applying a current through a first primary lead of a current transformer during the duration of an applied control signal pulse and second current gating means for applying an oppositely directed current through a second primary lead of the transformer. The current flow through the second primary lead commences at the trailing edge of the control signal pulse and produces a flux which cancels the flux produced by the current through the first primary lead; whereby a high voltage output pulse is produced across the secondary winding of the transformer which accurately reproduces the duration of the applied low voltage control signal pulse.