Invention Grant
- Patent Title: AC voltage measurement circuit
- Patent Title (中): 交流电压测量电路
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Application No.: US13106720Application Date: 2011-05-12
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Publication No.: US08493056B2Publication Date: 2013-07-23
- Inventor: Iain Barnett , William Michael James Holland , Jonathan Ephraim David Hurwitz
- Applicant: Iain Barnett , William Michael James Holland , Jonathan Ephraim David Hurwitz
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick & Markison
- Agent Bruce E. Garlick
- Priority: GB1007892.1 20100512; GB1007896.2 20100512
- Main IPC: G01R19/00
- IPC: G01R19/00

Abstract:
A voltage measurement circuit is operative to measure a high voltage AC signal and includes a capacitive divider circuit and a compensator circuit. The capacitive divider circuit includes first and second inputs, across which, in use, is received a high voltage AC signal and also includes second and third capacitors. First and second plates of each of the first, second and third capacitors are defined by conductive layers of a printed circuit board and the dielectric of each of the first, second and third capacitors being defined by a non-conducting part of the printed circuit board. A compensator circuit has a configurable transfer function and includes an input connected across the first and second plates of the third capacitor and an output. The compensator circuit is operative to change a voltage received at its input in accordance with the transfer function and to provide the changed voltage at its output.
Public/Granted literature
- US20110279108A1 AC VOLTAGE MEASUREMENT CIRCUIT Public/Granted day:2011-11-17
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