Overvoltage protection device of universal serial bus concentrator

Application Number: 00107252
Application Date: 2000.04.29
Publication Number: 1322048
Publication Date: 2001.11.14
Priority Information:
International: H02H3/20;G06F1/26
Applicant(s) Name: Dongsheng Science & Technology Co. Ltd.
Inventor(s) Name: Huang Zijie
Patent Agency Code: 11021
Patent Agent: liu wenyi
Abstract The present invention relates to an overvoltage protection device for USB concentrator, it is placed between external power supply and connector for computer peripheral equipment, and the high potential comparator and low potential comparator mounted in the interior of said protection device can receive the reference voltage value inputted by computer equipment and can implement comparasion, if the operator produces error connection or other related error operation, said reference voltage value is not being in the allowable range, so that the switch being in the interior of said protection device can be switched off, and has no power supply to computer peripheral equipment so as to can maintain the service life of computer peripheral equipment and attain the goal of safety using electricity.