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.

Date of Patent:
Sep. 11, 1984

Filed:

Jan. 09, 1981
Applicant:
Inventor:

Alton G Hierholzer, Jr, Seguin, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ; H02P / ;
U.S. Cl.
CPC ...
363 56 ; 363 71 ; 363 75 ; 363 97 ;
Abstract

A dc-to-ac inverter employing a control low power section and a power section. The low power section comprises a square wave generator, cross-coupled NOR latches and low level transistor switches for providing switching current to the power section. The power section employs complementary FET drivers and power switches connected to a battery or other source of dc and a ferro-resonant transformer for changing dc to ac. The power section is protected by a voltage sensor. In a preferred embodiment, this voltage is proportional to the current through the respective power switches and is used to unlatch the applicable NOR latch, thereby causing shut off of the protected network of the power section.


Find Patent Forward Citations

Hierholzer, Jr, Alton. (1984). Dc-to-ac inverter (U.S. Patent No. 4471422). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4471422

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…