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:
Jan. 29, 2013
Filed:
Dec. 02, 2009
Sung Uk Lee, Gyunggi-Do, KR;
Dong Kyun Ryu, Seoul, KR;
Kyung Hyun Kim, Seoul, KR;
Seung Heun Yang, Gyunggi-Do, KR;
Tai Sung Kim, Seoul, KR;
Jae Han Yoon, Gyunggi-Do, KR;
Peel Sik Jeon, Gyunggi-Do, KR;
Yun Seop Shin, Gyunggi-Do, KR;
Kyung Su Han, Gyunggi-Do, KR;
Sung Uk Lee, Gyunggi-Do, KR;
Dong Kyun Ryu, Seoul, KR;
Kyung Hyun Kim, Seoul, KR;
Seung Heun Yang, Gyunggi-Do, KR;
Tai Sung Kim, Seoul, KR;
Jae Han Yoon, Gyunggi-Do, KR;
Peel Sik Jeon, Gyunggi-Do, KR;
Yun Seop Shin, Gyunggi-Do, KR;
Kyung Su Han, Gyunggi-Do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Abstract
There is provided an alternating current (AC) detection circuit for a power supply, the circuit including: a rectifying part rectifying an AC voltage; a voltage division part dividing the voltage rectified by the rectifying part according to a preset division ratio; a voltage stabilization circuit part stabilizing the voltage divided by the voltage division part; a comparing part comparing the voltage stabilized by the voltage stabilization circuit part with an internal reference voltage and generating an input detection signal when the stabilized voltage is higher than the internal reference voltage; and an output part outputting an AC detection signal when the input detection signal is inputted from the comparing part.