The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1993
Filed:
Jul. 01, 1991
Applicant:
Inventor:
John E Bjornholt, Mesa, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307265 ; 307246 ; 307253 ;
Abstract
A method and apparatus for high power pulse modulation which includes a high voltage supply to provide a high voltage input signal, and a drive channel, rise channel, fall channel, and dump channel. A timing system controls the switching of the drive channel, rise channel, fall channel, and dump channel to modulate the high voltage input signal to produce an output signal. Each channel comprises a channel logic input, buffer amplifier, alternating current (AC) coupler, isolation pulse transformer, current limiter, and switch to provide the pulse modulation. Power MOSFETs can be used as switches in the four channels.