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. 02, 2001
Filed:
Apr. 25, 2000
Nobuyuki Matsui, Kasugai, JP;
Koichiro Miura, Ichikawa, JP;
Shigetaka Maeyama, Sakura, JP;
Takaharu Takeshita, Aichi, JP;
TDK Corporation, Tokyo, JP;
Abstract
A switching power source having a digital control system is provided. The switching power source includes a switching circuit,for switching an input power, an output circuit,for converting the switching output into a DC output, and a digital control,The digital control,is adapted to receive an output voltage analog signal AS,and an output current analog signal AS,and to convert the signals AS,and AS,into digital signals. It further functions to calculate, based on the digital signals, a command value for determining at least one of the switching frequency and the on or off time of the main switch,The operation of the main switch,is controlled in accordance with the command value. Information on power source input voltage or load terminal voltage is obtained through an assumption based on the signals AS,and AS