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. 14, 2017
Filed:
Nov. 21, 2014
National Sun Yat-sen University, Kaohsiung, TW;
NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung, TW;
Abstract
Estimation circuit for SOC and SOH of battery includes a control circuit, a current estimation circuit, an open-circuit voltage detection circuit, an optional multiplexer and an electrical-capacity calculation circuit. The control circuit operates under six modes based on a reset signal, a voltage signal and a current signal. The current estimation circuit comprises a current modification circuit and a Coulomb integral circuit, the current modification circuit receives the current signal and outputs a modifying current signal, the Coulomb integral circuit integrates the modifying current signal to obtain an estimating electrical-capacity value. The open-circuit voltage detection circuit receives the voltage signal and outputs an initial electrical-capacity value. The optional multiplexer receives an estimation optional signal, the estimating electrical-capacity value and the initial electrical-capacity value to output an estimating electrical-capacity signal. The electrical-capacity calculation circuit stores the estimating electrical-capacity signal to calculate battery-electrical-capacity remaining signal and state of health signal.