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:
Jan. 14, 1997
Filed:
Apr. 13, 1995
Neils A Kruse, Cary, IL (US);
Donald A Brichta, Western Springs, IL (US);
Other;
Abstract
A fast, high voltage modulator circuit (10) has a drive circuit (12) apply input pulses to an on-section (88) and an off-section (90). The on-section (88) and off-section (90) having a common output (46). A pair of transformers (18,24) connects the drive circuit (12) to the on-section (88) and off-section (90) respectively. The drive circuit (12) applies a pulse to the first transformer (18), which transmits the pulse to a first MOSFET (32) closing the first MOSFET (32) to connect an input high voltage (40) to the output (46). The drive circuit (12) applies an off pulse to the second transformer (24), which transmits the pulse to second and third MOSFETS (62,82), closing the second MOSFET (62) and connecting a lower input voltage (68) to the output (46). Also, closing the third MOSFET (82) that shorts out a gate (34) of the first MOSFET (32), thus opening the first MOSFET (32). The entire circuit is modular, being stackable to switch higher voltages.