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:
Jun. 15, 2021
Filed:
Jun. 12, 2020
Realtek Semiconductor Corporation, Hsinchu, TW;
Leaf Chen, Hsinchu, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
Disclosed is a switch control circuit coupled between a switch control node and a voltage terminal. The switch control node is between an input circuit and a switch. The switch control circuit includes: an electronic component being turned on or off according to voltages of the switch control node and a control voltage node in a power-on state and preventing the voltage of the switch control node from being higher than a predetermined voltage in a power-off state; a control circuit outputting a control signal to the control voltage node in the power-on state and having no effective control over the voltage of the control voltage node in the power-off state; and a resistive component coupled between the control voltage node and voltage terminal. The electronic and resistive components function as at least a part of a leakage path to assist in turning off the switch in the power-off state.