Invention Grant
US09035639B2 Voltage-to-current sensing circuit and related DC-DC converter
有权
电压 - 电流检测电路和相关的DC-DC转换器
- Patent Title: Voltage-to-current sensing circuit and related DC-DC converter
- Patent Title (中): 电压 - 电流检测电路和相关的DC-DC转换器
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Application No.: US13711454Application Date: 2012-12-11
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Publication No.: US09035639B2Publication Date: 2015-05-19
- Inventor: Martin Drinovsky
- Applicant: STMicroelectronics Design and Application S.R.O.
- Applicant Address: CZ Prague
- Assignee: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.
- Current Assignee: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.
- Current Assignee Address: CZ Prague
- Agency: Seed IP Law Group PLLC
- Priority: ITMI2011A2268 20111215
- Main IPC: G05F1/00
- IPC: G05F1/00 ; G05F1/46 ; G05F1/56 ; H02M3/156 ; H02M1/00

Abstract:
The present disclosure is directed to a voltage-to-current sensing circuit having a bias terminal configured to receive a reference voltage, an offset terminal configured to receive an offset current, and an operational amplifier configured to output a low voltage signal. The device includes a first amplifier having first and second high voltage inputs configured to receive a first voltage difference across a sense component on a high voltage line and to generate a first current, a second amplifier having first and second low voltage inputs configured to receive a second voltage difference between the bias terminal and the offset terminal and to generate a second current, a summing circuit configured to provide an intermediate voltage corresponding to a sum of the first and the second currents, and a low-voltage transistor coupled to an output of the amplifier and controlled by the intermediate voltage to generate the output current.
Public/Granted literature
- US20130154595A1 VOLTAGE-TO-CURRENT SENSING CIRCUIT AND RELATED DC-DC CONVERTER Public/Granted day:2013-06-20
Information query
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