PL423693A1 - System for measuring system with galvanic isolation - Google Patents
System for measuring system with galvanic isolationInfo
- Publication number
- PL423693A1 PL423693A1 PL423693A PL42369317A PL423693A1 PL 423693 A1 PL423693 A1 PL 423693A1 PL 423693 A PL423693 A PL 423693A PL 42369317 A PL42369317 A PL 42369317A PL 423693 A1 PL423693 A1 PL 423693A1
- Authority
- PL
- Poland
- Prior art keywords
- resistor
- terminal
- output
- ground
- optocoupler
- Prior art date
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Amplifiers (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Wejście pomiarowe (WE) uniwersalnego układu pomiarowego z izolacją galwaniczną dołączone jest do rezystora pomiarowego (R3) oraz pierwszego zacisku dzielnika rezystancyjnego, a drugi zacisk rezystora (R3) dołączony jest do drenu tranzystora (T1), którego źródło dołączone jest do masy a bramka dołączona jest do rezystora wyłączającego (R8), bramki tranzystora (T2) oraz do jednego wyjścia fototranzystora transoptora przełączającego (U2), którego drugie wyjście dołączone jest do dodatniego izolowanego napięcia zasilania strony pomiarowej (VCC). Katoda diody świecącej transoptora (U2) dołączona jest do masy strony wyjściowej a anoda tej diody dołączona jest do sygnału wyboru trybu pracy (TRYB). Drugi zacisk rezystora (R8) i drugi zacisk rezystora (R2) dołączone są do masy. Wyjście dzielnika (R1, R2) dołączone jest do wejścia nieodwracającego wzmacniacza operacyjnego (W), którego wyjście dołączone jest do anody diody świecącej podwójnego transoptora liniowego (U1) za pośrednictwem rezystora (R4). Katoda tej diody świecącej dołączona jest do masy. Katoda pierwszej fotodiody transoptora (U1) dołączona jest do zacisku dodatniego izolowanego napięcia zasilania a anoda tej diody dołączona jest do rezystora (R5) oraz rezystora (R6). Drugi zacisk rezystora (R5) dołączony jest do masy a drugi i zacisk rezystora (R6) dołączony jest do wejścia nieodwracającego wzmacniacza operacyjnego (W) oraz do rezystora (R7), którego drugi zacisk dołączony jest do drenu tranzystora (T2), którego źródło dołączone jest do masy. Katoda drugiej fotodiody transoptora (U1) dołączona jest do napięcia zasilania strony wyjściowej układu (VCC2) a anoda tej fotodiody dołączona jest do masy strony wyjściowej układu poprzez rezystor wyjściowy (R9) oraz do wyjścia układu (WY).The measuring input (WE) of a universal measuring system with galvanic isolation is connected to the measuring resistor (R3) and the first terminal of the resistance divider, and the second terminal of the resistor (R3) is connected to the drain of the transistor (T1), whose source is connected to the ground and the gate connected it is to the switching resistor (R8), the gate of the transistor (T2) and to one output of the phototransistor switching optocoupler (U2), whose other output is connected to the positive isolated supply voltage of the measuring side (VCC). The cathode of the optocoupler diode (U2) is connected to the ground of the output side and the anode of this diode is connected to the signal of the mode selection (MODE). The second resistor terminal (R8) and the second resistor terminal (R2) are connected to ground. The divider output (R1, R2) is connected to the non-inverting input of the operational amplifier (W), whose output is connected to the anode of the diode of the double line optocoupler (U1) via a resistor (R4). The cathode of this LED is attached to the ground. The cathode of the first photodiode of the optocoupler (U1) is connected to the positive terminal of the isolated supply voltage and the anode of this diode is connected to the resistor (R5) and resistor (R6). The second terminal of the resistor (R5) is connected to ground and the second and the terminal of the resistor (R6) is connected to the input of the non-inverting operational amplifier (W) and to the resistor (R7), whose second terminal is connected to the drain of the transistor (T2), whose source is connected is to mass. The cathode of the second photodiode of the optocoupler (U1) is connected to the supply voltage of the output side of the system (VCC2) and the anode of this photodiode is connected to the ground of the output side of the system through the output resistor (R9) and to the output of the system (WY).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423693A PL234634B1 (en) | 2017-12-04 | 2017-12-04 | System for measuring system with galvanic isolation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423693A PL234634B1 (en) | 2017-12-04 | 2017-12-04 | System for measuring system with galvanic isolation |
Publications (2)
Publication Number | Publication Date |
---|---|
PL423693A1 true PL423693A1 (en) | 2019-06-17 |
PL234634B1 PL234634B1 (en) | 2020-03-31 |
Family
ID=66809649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL423693A PL234634B1 (en) | 2017-12-04 | 2017-12-04 | System for measuring system with galvanic isolation |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL234634B1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3513883A1 (en) * | 1985-04-17 | 1986-10-23 | Siemens AG, 1000 Berlin und 8000 München | Electronic switch having at least one optocoupler |
US5517154A (en) * | 1995-01-13 | 1996-05-14 | Tektronix, Inc. | Split-path linear isolation circuit apparatus and method |
CN101923111A (en) * | 2009-06-11 | 2010-12-22 | 北京中纺锐力机电有限公司 | Isolation detection circuit of DC bus voltage |
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 |
CN102590589A (en) * | 2012-02-23 | 2012-07-18 | 河海大学 | 4-20mA current transmitter circuit |
CN102645600A (en) * | 2012-05-03 | 2012-08-22 | 长沙威胜信息技术有限公司 | Meter reading terminal hardware detection tool |
CN203084068U (en) * | 2012-12-19 | 2013-07-24 | 宁波伟吉电力科技有限公司 | Analog voltage acquisition circuit with isolation function |
CN206041965U (en) * | 2016-09-26 | 2017-03-22 | 航天长峰朝阳电源有限公司 | High -precision 4~20mA converts 10V's current -voltage conversion module to |
-
2017
- 2017-12-04 PL PL423693A patent/PL234634B1/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3513883A1 (en) * | 1985-04-17 | 1986-10-23 | Siemens AG, 1000 Berlin und 8000 München | Electronic switch having at least one optocoupler |
US5517154A (en) * | 1995-01-13 | 1996-05-14 | Tektronix, Inc. | Split-path linear isolation circuit apparatus and method |
CN101923111A (en) * | 2009-06-11 | 2010-12-22 | 北京中纺锐力机电有限公司 | Isolation detection circuit of DC bus voltage |
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 |
CN102590589A (en) * | 2012-02-23 | 2012-07-18 | 河海大学 | 4-20mA current transmitter circuit |
CN102645600A (en) * | 2012-05-03 | 2012-08-22 | 长沙威胜信息技术有限公司 | Meter reading terminal hardware detection tool |
CN203084068U (en) * | 2012-12-19 | 2013-07-24 | 宁波伟吉电力科技有限公司 | Analog voltage acquisition circuit with isolation function |
CN206041965U (en) * | 2016-09-26 | 2017-03-22 | 航天长峰朝阳电源有限公司 | High -precision 4~20mA converts 10V's current -voltage conversion module to |
Also Published As
Publication number | Publication date |
---|---|
PL234634B1 (en) | 2020-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW201612671A (en) | Current reference circuits | |
CO2017011275A2 (en) | Environmental control system | |
WO2014078677A8 (en) | Wide common mode range transmission gate | |
TW201615003A (en) | Imaging device and electronic device | |
JP2010109340A5 (en) | ||
RU2008127878A (en) | PIEZO-ELECTRIC CONVERTER SIGNAL PROCESSING DEVICE | |
ATE514956T1 (en) | BATTERY VOLTAGE MONITORING SYSTEM | |
GB2550778A (en) | Mismatch and noise insensitive STT MRAM | |
WO2014138693A3 (en) | Low threshold voltage comparator | |
US10177777B2 (en) | Dual-sensor signal collecting circuit | |
EA201591225A1 (en) | A SEMICONDUCTOR DEVICE WITH PROPERTIES TO PREVENT REVERSE DESIGN | |
RU2013100769A (en) | MULTI-DIFFERENTIAL OPERATIONAL AMPLIFIER | |
PL423693A1 (en) | System for measuring system with galvanic isolation | |
MY177593A (en) | Signal conversion | |
ITVA20100083A1 (en) | CURRENT TEMPERATURE TRANSDUCER | |
TR201906363T4 (en) | Flame detection for incinerators. | |
SG10201802422TA (en) | Monitoring a pipe plug | |
PL401460A1 (en) | Universal input system | |
CN104868901A (en) | Signal detection circuit | |
PL413719A1 (en) | Power supply circuit for digital gates, preferably composed of the complementary pairs of bipolar transistors | |
US10560090B2 (en) | One-way conduction device | |
PL401042A1 (en) | Resistance measurement System, especially for intrinsically safe circuits | |
TR201710491A2 (en) | A supply circuit. | |
PL401605A1 (en) | Measuring system with galvanic isolation for devices with intrinsically safe circuits | |
PL401604A1 (en) | Measuring system with isolation devices with intrinsically safe circuits |