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BR9807989A - Circuit - Google Patents

Circuit

Info

Publication number
BR9807989A
BR9807989A BR9807989-1A BR9807989A BR9807989A BR 9807989 A BR9807989 A BR 9807989A BR 9807989 A BR9807989 A BR 9807989A BR 9807989 A BR9807989 A BR 9807989A
Authority
BR
Brazil
Prior art keywords
resolution
circuit
analog
analog signal
signal
Prior art date
Application number
BR9807989-1A
Other languages
Portuguese (pt)
Inventor
I Nelson Wakefield
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Publication of BR9807989A publication Critical patent/BR9807989A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
    • G01K7/206—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit in a potentiometer circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
    • G01K7/21—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • G01K7/24—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
    • G01K7/25—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

"CIRCUITO". Um sinal analógico é saído de um circuito divisor de tensão. Um ajuste na resolução daquele sinal é fornecido usando uma chave a transistor para seletivamente conectar e desconectar uma resistência de resolução em paralelo com uma das resistências compreendendo o circuito divisor de tensão. O sinal analógico de resolução ajustada resultante é então processado por um conversor analógico/digital. Alternativamente, a saída de sinal analógico do circuito divisor de tensão é aplicada a um circuito de amplificação de mudança de escala implementado com um amplificador operacional. Um ajuste na resolução daquele sinal é fornecido usando uma chave a transistor para seletivamente conectar e desconectar uma resistência de resolução em paralelo com uma resistência de realimentação do circuito amplificador operacional. O resultante sinal analógico de resolução ajustada é então processado por um conversor analógico/digital."CIRCUIT". An analog signal is output from a voltage divider circuit. An adjustment in the resolution of that signal is provided using a transistor switch to selectively connect and disconnect a resolution resistor in parallel with one of the resistors comprising the voltage divider circuit. The resulting adjusted resolution analog signal is then processed by an analog / digital converter. Alternatively, the analog signal output from the voltage divider circuit is applied to a scaling amplification circuit implemented with an operational amplifier. An adjustment to the resolution of that signal is provided using a transistor switch to selectively connect and disconnect a resolution resistor in parallel with a feedback resistor from the operational amplifier circuit. The resulting resolution-adjusted analog signal is then processed by an analog / digital converter.

BR9807989-1A 1997-03-07 1998-03-04 Circuit BR9807989A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81391897A 1997-03-07 1997-03-07
PCT/US1998/004167 WO1998039624A1 (en) 1997-03-07 1998-03-04 Voltage divider providing switchable resolution

Publications (1)

Publication Number Publication Date
BR9807989A true BR9807989A (en) 2000-03-08

Family

ID=25213758

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9807989-1A BR9807989A (en) 1997-03-07 1998-03-04 Circuit

Country Status (8)

Country Link
EP (1) EP0965031A1 (en)
JP (1) JP2001516529A (en)
KR (1) KR20000075877A (en)
CN (1) CN1249811A (en)
AU (1) AU6681898A (en)
BR (1) BR9807989A (en)
EE (1) EE9900381A (en)
WO (1) WO1998039624A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8702932B2 (en) 2007-08-30 2014-04-22 Pepex Biomedical, Inc. Electrochemical sensor and method for manufacturing
CN102435333A (en) * 2011-10-17 2012-05-02 青岛海尔空调电子有限公司 Temperature detection method and device
CN102507034A (en) * 2011-10-18 2012-06-20 广东美的电器股份有限公司 Temperature sampling circuit and method of air conditioner
JP5948261B2 (en) * 2013-01-29 2016-07-06 ヤンマー株式会社 controller
US9429606B2 (en) * 2013-09-30 2016-08-30 Siemens Industry, Inc. Increasing resolution of resistance measurements
EP2899548B1 (en) 2014-01-27 2023-06-21 Siemens Schweiz AG Versatile detection circuit
WO2016124274A1 (en) * 2015-02-06 2016-08-11 Danfoss A/S A method to improve sensor accuracy using multiple shift resistors and a system thereof
CN105406651B (en) * 2015-12-23 2018-04-06 北京新能源汽车股份有限公司 Motor temperature acquisition device and vehicle
CN107907236A (en) * 2017-11-28 2018-04-13 惠州市蓝微新源技术有限公司 A kind of high-precision temperature detection circuit of battery management system
JP7217116B2 (en) * 2018-09-25 2023-02-02 ローム株式会社 analog/digital converter
CN114072683B (en) * 2019-05-27 2024-01-05 Oppo广东移动通信有限公司 A temperature measurement method, device and storage medium
KR102843295B1 (en) 2020-01-30 2025-08-06 주식회사 엘지에너지솔루션 Device and method for monitoring common mode voltage
CN111664958A (en) * 2020-05-29 2020-09-15 科大智能电气技术有限公司 Wireless temperature measurement system and temperature measurement method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435679A (en) * 1981-05-26 1984-03-06 General Electric Company Programmable signal amplitude control circuits
US4673807A (en) * 1984-10-12 1987-06-16 Dai Nippon Insatso Kabushiki Kaisha Automatic range control method for an optical density/dot percentage measuring device
US5214370A (en) * 1991-09-13 1993-05-25 At&T Bell Laboratories Battery charger with thermal runaway protection
WO1997000432A1 (en) * 1995-05-05 1997-01-03 Ford Motor Company Temperature measuring assembly

Also Published As

Publication number Publication date
EP0965031A1 (en) 1999-12-22
JP2001516529A (en) 2001-09-25
AU6681898A (en) 1998-09-22
KR20000075877A (en) 2000-12-26
EE9900381A (en) 2000-04-17
WO1998039624A1 (en) 1998-09-11
CN1249811A (en) 2000-04-05

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A E 10A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1971 DE 14/10/2008.