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. 27, 1999
Filed:
Feb. 21, 1997
Yasuaki Tomiyama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An oscillator includes a converter, an oscillation transistor, a resistor, a capacitor and a primary coil of a transformer, and a rectifier includes a secondary coil of the transformer, resistors, capacitors, and a rectifying transistor. Control of the converter is carried out by the configuration of a capacitor, resistors and a transistor. A ripple filter includes a choke coil and ripple capacitors, and a converter activation part comprises a switch interlocked with a power supply switch and an activation diode. A ripple capacitor is also provided on the primary side of the converter. The battery is directly coupled to the primary side of the transformer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile