Invention Grant
- Patent Title: Method of and apparatus for detecting open circuit conditions at an input to a signal chain and for detecting channel imbalance in a differential signal chain
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Application No.: US15969242Application Date: 2018-05-02
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Publication No.: US10476458B2Publication Date: 2019-11-12
- Inventor: Jonathan Ephraim David Hurwitz , Jesus Bonache , Robert Sythes , Eamonn J. Byrne
- Applicant: Analog Devices Global Unlimited Company
- Applicant Address: BM Hamilton
- Assignee: Analog Devices Global Unlimited Company
- Current Assignee: Analog Devices Global Unlimited Company
- Current Assignee Address: BM Hamilton
- Agency: Schwegman Lundberg & Woessner, P.A.
- Priority: GB1801995.0 20180207
- Main IPC: H03F3/45
- IPC: H03F3/45
Abstract:
It is often desirable to distinguish between an open circuit condition and a no signal condition. In both cases an input signal may be absent, but only one of these events represents a failure of the equipment. The present disclosure provides a way to use a difference amplifier to check for open circuit events, without requiring additional circuitry at the input of the amplifier.
Public/Granted literature
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