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. 20, 2014
Filed:
May. 24, 2012
Wei-kai Tseng, Tainan, TW;
Wei-Kai Tseng, Tainan, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
An adaptive protection circuit module for an operational amplifier including an over temperature protection circuit and an over current protection circuit is provided. The over temperature protection circuit provides a temperature protection function to power down the operational amplifier when an operating temperature of the operational amplifier increases higher than a first threshold temperature. The over current protection circuit provides a current protection function to limit an output current of the operational amplifier and adjusts the first threshold temperature to a second threshold temperature when the over current protection circuit is enabled. The second threshold temperature is lower than the first threshold temperature. After the first threshold temperature is adjusted to the second threshold temperature, the over temperature protection circuit powers down the operational amplifier when the operating temperature increases higher than the second threshold temperature. Furthermore, an adaptive protection method for the foregoing operational amplifier is also provided.