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. 10, 1990
Filed:
Jul. 27, 1988
Robert W Peitz, Jr, Fayetteville, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
An AC input conditioning circuit comprises a latch circuit, one or more latch conditioning channels, and a latch synchronizing circuit that is coupled to an AC source and has an output supplying a latch enable pulse to the latch enable terminal of the latch circuit only when the AC power signal exceeds predetermined latching threshold during alternate half cycles. The conditioning channel comprises an input coupled to a device whose on or off sense is to be detected, and an output coupled to a corresponding channel of the latch. Each conditioning channel can be comprised of a rectifier diode, followed by a zener diode and a driver amplifier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile