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:
Oct. 26, 2004
Filed:
Jul. 28, 2003
Hui Chiang Yang, Taipei Hsien, TW;
Niko Semiconductor Co., Ltd., Taipei, TW;
Abstract
A synchronous control circuit of a flyback switching power supply is connected to a secondary side of a transformer. The synchronous control circuit has several sets of power source ends and a set of induction ends. One output end of the power source ends is connected to a rectifying circuit for rectifying the voltage waveform of the power source ends. The induction ends are connected with a rectifying diode to form a detection end. A synchronous control circuit is connected with the power source ends and the detection end, and has a synchronous input end, a control end, and a waveform adjustment end. The synchronous input end is used for input of a synchronous signal. The control end is connected to the rectifying circuit. The waveform adjustment end is connected to a resistor for controlling the rectifying circuit to generate a uniform rectifying response period.