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. 12, 2021
Filed:
Oct. 11, 2018
Realtek Semiconductor Corporation, Hsinchu, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
An electrostatic discharge (ESD) protection device includes a voltage divider circuit, a detection circuit, and a clamping circuit. The voltage divider circuit outputs N−1 bias voltages according to a first voltage and a second voltage, in which N is a positive integer greater than or equal to 2. The detection circuit detects an ESD event according to a voltage level at a predetermined node associated with the first voltage and the second voltage, and to generate N control signals according to the first voltage, the second voltage, and the N−1 bias voltages. When the ESD event occurs, the voltage level of the N control signals are the same as the first voltage. The clamping circuit is turned on according to the N control signals when the ESD event occurs, in order to provide a discharging path of a current associated with the ESD event.