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:
Aug. 14, 2007
Filed:
Mar. 10, 2005
Applicants:
Oki Maya, Setagaya, JP;
Kazuki Tateoka, Takatsuki, JP;
Inventors:
Oki Maya, Setagaya, JP;
Kazuki Tateoka, Takatsuki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A temperature compensation circuitincluded in a collector voltage generation sectionapplies an offset voltage Vofs(T) to a power control signal Vctrl according to a device temperature. The resulting temperature compensation circuit output voltage Vctrl' (T) is applied to a collector terminal of a bipolar transistorthrough a voltage regulatorand a choke inductor