Invention Grant
- Patent Title: Method and apparatus for detecting phase of input power
- Patent Title (中): 用于检测输入功率相位的方法和装置
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Application No.: US14605074Application Date: 2015-01-26
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Publication No.: US09405261B2Publication Date: 2016-08-02
- Inventor: Hong-ki Jung , Jae-wan Kim , Kyung-hwan So , Young-jun Song
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-Si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-Si
- Agency: Staas & Halsey LLP
- Priority: KR10-2014-0111625 20140826
- Main IPC: G03G15/00
- IPC: G03G15/00 ; G03G15/20

Abstract:
A phase detector includes an alternating current input unit to which input power is applied; a zero cross generator that outputs a zero cross signal at a zero cross point of the input power by using a photo coupler; and a zero cross detector that converts the zero cross signal to a pulse signal and detects the phase of the input power based on the pulse signal. A compensation capacitor is connected in parallel at a first side of the photo coupler.
Public/Granted literature
- US20160062301A1 METHOD AND APPARATUS FOR DETECTING PHASE OF INPUT POWER Public/Granted day:2016-03-03
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