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:
Dec. 04, 2018
Filed:
Apr. 25, 2018
Chicony Power Technology Co., Ltd., New Taipei, TW;
Tso-Jen Peng, New Taipei, TW;
Ssu-Hao Wang, New Taipei, TW;
CHICONY POWER TECHNOLOGY CO., LTD., New Taipei, TW;
Abstract
A load detection circuit is applied to a power converter, and the power converter provides a switch switching frequency to control a switch output voltage. The load detection circuit includes a voltage adjustment unit, an integration unit, and a power switch. The voltage adjustment unit receives the switch output voltage provided from the power converter and adjusts the switch output voltage into an adjustment voltage. The integration unit is coupled to the voltage adjustment unit to receive the adjustment voltage and integrate the adjustment voltage to provide a control voltage. The power switch is coupled to the integration unit to receive the control voltage. When the switch switching frequency is increased to make the control voltage large enough to turn on the power switch, the load detection circuit detects that the power converter is changed from a no-loading condition to a loading condition.