Invention Grant
- Patent Title: Contactless card clamp circuits that compensate for regulator reference voltage fluctuations
- Patent Title (中): 非接触卡钳位电路，用于补偿调节器参考电压波动
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Application No.: US13612898Application Date: 2012-09-13
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Publication No.: US09111187B2Publication Date: 2015-08-18
- Inventor: Jong Pil Cho , Il Jong Song , Sang Hyo Lee
- Applicant: Jong Pil Cho , Il Jong Song , Sang Hyo Lee
- Applicant Address: KR
- Assignee: Samsung Electronic Co., Ltd.
- Current Assignee: Samsung Electronic Co., Ltd.
- Current Assignee Address: KR
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Priority: KR10-2012-0020301 20120228
- Main IPC: H03K5/08
- IPC: H03K5/08 ; G06K19/07
Abstract:
A contactless card includes an inductive circuit configured to send and receive signals, a rectifier circuit coupled to the inductive circuit and configured to generate a DC voltage from an AC voltage generated by the inductive circuit, a clamp circuit configured to limit the DC voltage, a regulator circuit configured to regulate the DC voltage and a control circuit configured to selectively enable and disable the clamp circuit and the regulator circuit.
Public/Granted literature
- US20130223116A1 CONTACTLESS CARD CLAMP CIRCUITS THAT COMPENSATE FOR REGULATOR REFERENCE VOLTAGE FLUCTUATIONS Public/Granted day:2013-08-29
Information query
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