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. 28, 2014
Filed:
Sep. 08, 2011
Tetsuo Sato, San Jose, CA (US);
Tsutomu Kawano, Sagamihara, JP;
Koji Kashimoto, Hino, JP;
Takao Hidaka, Machida, JP;
Tsuyoshi Ota, Chofu, JP;
Ryoji Kato, Tokyo, JP;
Tetsuo Sato, San Jose, CA (US);
Tsutomu Kawano, Sagamihara, JP;
Koji Kashimoto, Hino, JP;
Takao Hidaka, Machida, JP;
Tsuyoshi Ota, Chofu, JP;
Ryoji Kato, Tokyo, JP;
Renesas Electronics America Inc., Santa Clara, CA (US);
Abstract
In one embodiment of the cold end switch battery management control method, a battery generates an output voltage at a positive terminal thereof. A first control voltage is also generated by an integrated circuit. A gate of a field effect transistor (FET) receives the first control voltage, wherein the FET comprises a drain and a source with the source coupled to a negative terminal of the battery. The FET transmits current towards the battery in response to the gate receiving the first control voltage, wherein the first control voltage is greater than the output voltage, and wherein the first control voltage is less than a breakdown voltage of the integrated circuit.