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. 10, 2016
Filed:
Dec. 30, 2014
Huawei Technologies Co., Ltd., Shenzhen, CN;
Xiaodong Fan, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
According to the DC-DC conversion circuit and conversion method, variation of an input voltage is reflected by detecting a voltage at a secondary winding of a transformer, a reference voltage is adjusted by using the detected input voltage signal, a feedback voltage signal is compared with the reference voltage, a duty cycle control signal is adjusted according to a comparison result, and conduction and shutting-down of switching transistors are controlled according to the duty cycle control signal to adjust an output voltage of the DC-DC conversion circuit, so as to enable the output voltage to vary with the input voltage.