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:
May. 16, 2006
Filed:
Nov. 30, 2004
Hiroshi Nakayama, Nishikamo-gun, JP;
Hiroshi Nakayama, Nishikamo-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A power source () supplies an input voltage (V). A voltage conversion circuit () converts the input voltage (V) from the power source () into an operating voltage (V) to be used to drive an electric load (). A detection circuit () measures an insulation resistance value (R) on the output side of the voltage conversion circuit (). A control circuit () controls a voltage conversion ratio (K (K=V/V)) in the voltage conversion circuit (), which is expressed as a ratio of the operating voltage (V) to the input voltage (V), in accordance with the insulation resistance value (R) detected by the detection circuit (). The control circuit () sets the voltage conversion ratio (K) such that the operating voltage (V) becomes lower at the time of degradation of an insulation resistance than at the time of normal operation thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile