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:
Nov. 09, 2010
Filed:
May. 03, 2007
David Mcclure, Carrollton, TX (US);
David McClure, Carrollton, TX (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
A battery monitor circuit. The circuit includes a control module, a resistive load having a resistive value between a first and a second terminals and a part of that resistive value between the first and an intermediate terminals, a switch configured to couple the full load between circuit input and a common potential in response a pulse signal, a first comparator having inputs separately coupled to a voltage reference and the intermediate terminal, a second comparator having inputs separately coupled to the voltage reference and an input potential, a latch, a detection module having input coupled to second comparator output, and an alarm module. The latch is configured to latch a value at output of first comparator to another input of the detection module in response to the pulse signal; if input potential is less than a preselected magnitude, detection module output is configured to activate the alarm module.