PL423144A1 - System for measuring voltage with galvanic separation - Google Patents

System for measuring voltage with galvanic separation

Info

Publication number
PL423144A1
PL423144A1 PL423144A PL42314417A PL423144A1 PL 423144 A1 PL423144 A1 PL 423144A1 PL 423144 A PL423144 A PL 423144A PL 42314417 A PL42314417 A PL 42314417A PL 423144 A1 PL423144 A1 PL 423144A1
Authority
PL
Poland
Prior art keywords
optocoupler
measuring
lead
photodetector
comparative
Prior art date
Application number
PL423144A
Other languages
Polish (pl)
Other versions
PL233134B1 (en
Inventor
Marcin Baszyński
Roman Dudek
Aleksander Dziadecki
Janusz Grzegorski
Józef SKOTNICZNY
Andrzej Stobiecki
Original Assignee
Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie
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 Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie filed Critical Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie
Priority to PL423144A priority Critical patent/PL233134B1/en
Publication of PL423144A1 publication Critical patent/PL423144A1/en
Publication of PL233134B1 publication Critical patent/PL233134B1/en

Links

Abstract

Układ zawiera transoptor pomiarowy, którego fotoemiter i połączony z nim szeregowo rezystor wejściowy dołączone są do mierzonego napięcia wejściowego oraz transoptor porównawczy. Charakteryzuje się tym, że oba transoptory są jednego rodzaju. Pierwsze wyprowadzenie fotodetektora transoptora pomiarowego (TO1) jest dołączone do dodatniego bieguna napięcia zasilającego (Uz), a drugie wyprowadzenie jest połączone z pierwszym wyprowadzeniem fotodetektora transoptora porównawczego (TO2), którego drugie wyprowadzenie jest dołączone do ujemnego bieguna napięcia zasilającego (Uz). Pomiędzy dodatnim a ujemnym biegunem napięcia zasilającego (Uz) włączone są też, połączone kolejno, tranzystor pomiarowy (T1), fotoemiter transoptora porównawczego (TO2) oraz rezystor wyjściowy (Rwy). Elektroda sterująca tranzystora pomiarowego (T1) przyłączona jest do wspólnego punktu drugiego wyprowadzenia fotodetektora transoptora pomiarowego (TO1) i pierwszego wyprowadzenia fotodetektora transoptora porównawczego (TO2). Napięcia na rezystorze wyjściowym (Rwy) są równe napięciu wyjściowemu (Uwy), które jest proporcjonalne do napięcia wejściowego (Uwe). Transoptor pomiarowy (TO1) i transoptor porównawczy (TO2) są jednego rodzaju, korzystnie jako transoptor podwójny. Tranzystor pomiarowy może być tranzystorem bipolarnym lub unipolarnym.The system includes a measuring optocoupler whose photoemitter and input resistor connected in series are connected to the measured input voltage and a comparative optocoupler. It is characterized by the fact that both optocouplers are of one type. The first lead of the measuring optocoupler photodetector (TO1) is connected to the positive pole of the supply voltage (Uz), and the second lead is connected to the first lead of the photodetector of the comparative optocoupler (TO2), the second pin of which is connected to the negative pole of the supply voltage (Uz). Between the positive and negative poles of the supply voltage (Uz) are also connected, sequentially connected, measuring transistor (T1), comparative photocoupler (TO2) and output resistor (Rwy). The measuring electrode of the measuring transistor (T1) is connected to the common point of the second lead of the photodetector of the measuring optocoupler (TO1) and the first lead of the photodetector of the reference optocoupler (TO2). The voltages on the output resistor (Rwy) are equal to the output voltage (Uwy), which is proportional to the input voltage (Uwe). The measuring optocoupler (TO1) and comparative optocoupler (TO2) are of one type, preferably as a double optocoupler. The measuring transistor can be a bipolar or unipolar transistor.

PL423144A 2017-10-12 2017-10-12 System for measuring voltage with galvanic separation PL233134B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL423144A PL233134B1 (en) 2017-10-12 2017-10-12 System for measuring voltage with galvanic separation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL423144A PL233134B1 (en) 2017-10-12 2017-10-12 System for measuring voltage with galvanic separation

Publications (2)

Publication Number Publication Date
PL423144A1 true PL423144A1 (en) 2019-04-23
PL233134B1 PL233134B1 (en) 2019-09-30

Family

ID=66167889

Family Applications (1)

Application Number Title Priority Date Filing Date
PL423144A PL233134B1 (en) 2017-10-12 2017-10-12 System for measuring voltage with galvanic separation

Country Status (1)

Country Link
PL (1) PL233134B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001119286A (en) * 1999-08-11 2001-04-27 Abb Ind Oy Electric separation and coupling for current loop
US6316930B1 (en) * 1998-12-21 2001-11-13 Istito Nazionale Di Fisica Nucleare Direct current meter with passive input and galvanic insulation, particularly for high voltage
CN101738526A (en) * 2008-11-21 2010-06-16 上海电机学院 Direct current output voltage test circuit for power factor correction control circuit
CN102305890A (en) * 2011-07-22 2012-01-04 中国电力科学研究院 Direct-current voltage detection method of submodule of flexible direct-current transmission system
CN203858283U (en) * 2014-04-30 2014-10-01 国家电网公司 Sub-module current direction judgment circuit of cascaded converter arm
PL221498B1 (en) * 2010-12-13 2016-04-29 Inst Tele I Radiotech Binary input system with variable resistance and galvanic isolation
PL223333B1 (en) * 2012-12-10 2016-10-31 Inst Tele I Radiotechniczny Bistable system with a variable resistance input with galvanic isolation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6316930B1 (en) * 1998-12-21 2001-11-13 Istito Nazionale Di Fisica Nucleare Direct current meter with passive input and galvanic insulation, particularly for high voltage
JP2001119286A (en) * 1999-08-11 2001-04-27 Abb Ind Oy Electric separation and coupling for current loop
CN101738526A (en) * 2008-11-21 2010-06-16 上海电机学院 Direct current output voltage test circuit for power factor correction control circuit
PL221498B1 (en) * 2010-12-13 2016-04-29 Inst Tele I Radiotech Binary input system with variable resistance and galvanic isolation
CN102305890A (en) * 2011-07-22 2012-01-04 中国电力科学研究院 Direct-current voltage detection method of submodule of flexible direct-current transmission system
PL223333B1 (en) * 2012-12-10 2016-10-31 Inst Tele I Radiotechniczny Bistable system with a variable resistance input with galvanic isolation
CN203858283U (en) * 2014-04-30 2014-10-01 国家电网公司 Sub-module current direction judgment circuit of cascaded converter arm

Also Published As

Publication number Publication date
PL233134B1 (en) 2019-09-30

Similar Documents

Publication Publication Date Title
WO2016073123A3 (en) High-current sensing scheme using drain-source voltage
WO2012140149A3 (en) Insulation monitoring in a photovoltaic inverter
CN204089754U (en) A kind of small size low-power consumption high speed current comparator
CN203837836U (en) High precision low temperature ticket thermal resistance temperature measuring circuit
MY177593A (en) Signal conversion
PL423144A1 (en) System for measuring voltage with galvanic separation
MX2012001477A (en) Pressure-sensitive amplifier stage.
WO2015025121A3 (en) Power conversion apparatus
RU2017106379A (en) Device for producing direct current flowing in the load power circuit (options)
RU2008146430A (en) DEVICE FOR DETERMINING HEMATOCRITIS INDICATOR
PL420750A1 (en) System for measuring alternating voltage with galvanic separation
HRP20221285T1 (en) Safe-input dynamic sampling circuit
PL411915A1 (en) Direct voltage divider system
PL414344A1 (en) Magnetic field sensor system
UA114689U (en) CURRENT HEATING METER
CN203745526U (en) Voltage measuring circuit
CN204131419U (en) A kind of automatic bias power supply circuits for non-isolated electric energy measurement
UA97217U (en) Measuring optical radiation
PL412053A1 (en) Electronic multiple-source counter
RU119902U1 (en) ADJUSTABLE DC VOLTAGE STABILIZER WITH BIPOLAR OUTPUT
PL424061A1 (en) Circuit for elimination of interferences in measuring cables
MD590Y (en) Ohmmeter
PL406905A1 (en) System of the controlled bipolar current source
PL401872A1 (en) System for measuring the power supply
PL423693A1 (en) System for measuring system with galvanic isolation