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. 21, 2020
Filed:
Apr. 14, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
Hefei Boe Optoelectronics Technology Co., Ltd., Hefei, Anhui, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Hefei, Anhui, CN;
Abstract
The disclosure discloses an absorption circuit which is coupled to a switching power supply, wherein the absorption circuit comprises: a switching power supply voltage spike suppression circuit for changing a voltage spike of the switching power supply into a desired voltage spike, an energy storage circuit which is coupled to the switching power supply voltage spike suppression circuit and used for storing the spike voltage that is suppressed, and a release circuit which is coupled to the energy storage circuit and used for, when the voltage stored by the energy storage circuit is higher than the output voltage of the switching power supply, releasing the energy which is stored by the energy storage circuit and higher than the output voltage to the output terminal of the switching power supply. The disclosure further discloses a corresponding switching power supply and a liquid crystal display driving circuit.