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. 30, 2017
Filed:
Feb. 26, 2015
Delta Electronics, Inc., Taoyuan County, TW;
Yu-Chieh Tseng, Taoyuan County, TW;
Chien-Chung Lee, Taoyuan County, TW;
Chia-Hao Yeh, Taoyuan County, TW;
DELTA ELECTRONICS, INC., Taoyuan, TW;
Abstract
An over-voltage protection apparatus includes an input voltage detection module () and a second switch (). The input voltage detection module () includes a switch assembly (), a rectifying circuit (), a voltage detection circuit (), and a voltage protection circuit (). The rectifying circuit () rectifies an AC power source (Vac) to generate a DC voltage (Vb). The voltage protection circuit () controls the second switch () to disconnect the AC power source (Vac) to supply a load () when the voltage detection circuit () detects that the DC voltage (Vb) reaches to a first over voltage value (Voth). The voltage protection circuit () controls the switch assembly (), thereby providing a voltage-limiting protection and a current-limiting protection when the voltage detection circuit () detects that the DC voltage (Vb) reaches to a second over voltage value (Voth).