CN202818291U - Low voltage power line carrier communication circuit - Google Patents

Low voltage power line carrier communication circuit Download PDF

Info

Publication number
CN202818291U
CN202818291U CN 201220424038 CN201220424038U CN202818291U CN 202818291 U CN202818291 U CN 202818291U CN 201220424038 CN201220424038 CN 201220424038 CN 201220424038 U CN201220424038 U CN 201220424038U CN 202818291 U CN202818291 U CN 202818291U
Authority
CN
China
Prior art keywords
capacitor
diode
resistance
triode
carrier
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN 201220424038
Other languages
Chinese (zh)
Inventor
马建
陈克绪
刘强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd
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 State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Jiangxi Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN 201220424038 priority Critical patent/CN202818291U/en
Application granted granted Critical
Publication of CN202818291U publication Critical patent/CN202818291U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A low voltage power line carrier communication circuit is composed of a carrier coupling unit (1), a carrier receiving unit (2), a carrier processing unit (3) and a carrier transmitting unit (4). The carrier coupling unit (1) is composed of a transformer TR1, a capacitor C2, an inductor L2, and three elements; the carrier receiving unit (2) is composed of a resistor R1, capacitors C1, C3, an inductor L1, a transient suppression diode P1, and five elements; the carrier processing unit (3) is composed of a resistor R2, an external filter Q, a data processing chip and a peripheral circuit; the carrier transmitting unit (4) is composed of capacitors C4, C5, C6, resistors R3, R4, R5, diodes D1, D2, D3, D4, triodes T1, T2, a transient suppression diode P2, and thirteen elements. The low voltage power line carrier communication circuit is simplified, and the data transmission reliability is improved. The utility model is suitable for the low voltage power line carrier communication circuit.

Description

A kind of low-voltage powerline carrier communication circuit
Technical field
The utility model relates to a kind of low-voltage power line carrier communication circuit, belongs to the PLC technology field.
Background technology
Along with the construction of national intelligent grid and carrying out in an all-round way of step price, intelligent electric meter is widely applied.User's electric weight copy and accept aspect intelligent electric meter provide two kinds of RS485 and low-voltage power carriers to copy and accept mode.Now seldom use because RS485 needs external communication line, and low-voltage power carrier is by existing power line, simple and easy to doly just is widely applied.But the low voltage electric power carrier communication module of using at present still exists complex circuit designs, transfer of data to be subject to the problems such as household electrical appliance interference, causes copying and accepting of numerous residents' electric weight still to rest on the stage of manually copying and accepting.Problem for present low voltage electric power carrier communication existence, the utility model provides a kind of low-voltage powerline carrier communication circuit, make that transfer of data is more reliable, circuit structure is simpler, has solved the problems such as low power line carrier communication easily is disturbed, and has saved a large amount of manpower and materials.
Summary of the invention
The purpose of this utility model is, and is complicated for the low-voltage powerline carrier communication circuit that is using at present, easily the problem such as be disturbed, and a kind of New Low Voltage power line carrier communication circuit is provided.
The technical solution of the utility model is that the utility model low-voltage power line carrier communication circuit is comprised of carrier wave coupling unit, carrier wave receiving element, carrier processing unit and carrier wave transmitting element.
The carrier wave coupling unit is comprised of power transformation device TR1, capacitor C 2,2,3 elements of inductance L; Capacitor C 2 and inductance L 2 are connected on respectively on two lead-out wires of the former limit of power transformation device TR1 winding; One end line of transformer TR1 secondary winding is carried the resistance R 1 of ripple receiving element, another end line ground connection, and the centre tap of transformer TR1 secondary winding is carried ripple transmitter unit resistance R 5.
The carrier wave receiving element is by resistance R 1, capacitor C 1, capacitor C 3, and inductance L 1, Transient Suppression Diode P1,5 elements form; Resistance R 1 one ends connect the C end of carrier wave coupling unit transformer TR1, and the other end connects inductance L 1, capacitor C 1, Transient Suppression Diode P1, capacitor C 3; An end is connected other end ground connection after inductance L 1, capacitor C 1, the Transient Suppression Diode P1 parallel connection with resistance R 1, capacitor C 3.Capacitor C 3 one ends are connected with resistance R 1, inductance L 1, capacitor C 1, Transient Suppression Diode P1, and the other end connects the A end of carrier processing cell processing chip MCU.
The carrier processing unit is by resistance R 2, external filter Q, and data processing chip (MCU) and peripheral circuit form.Resistance R 2 one termination 5V power supplys, the B end of another termination data processing chip MCU.Two terminals of external filter Q connect respectively B end and the C end of data processing chip MCU, and another terminal of external filter Q connects the 5V power supply.
The carrier wave transmitting element is by capacitor C 4, capacitor C 5, capacitor C 6, resistance R 3, resistance R 4, resistance R 5, and diode D1, diode D2, diode D3, diode D4, triode T1, triode T2, Transient Suppression Diode P2,13 elements form; One end of capacitor C 6 and the D end of carrying ripple processing unit MCU after capacitor C 5 is connected, capacitor C 6 other end connecting resistance R3, capacitor C 5 other end connecting resistance R4.One termination capacitor C6 of resistance R 3, the base stage of another terminating diode D2 and triode T1.One termination capacitor C5 of resistance R 4, the base stage of another terminating diode D1 and triode T2.The D end of capacitor C 4 one terminating resistor R5 and carrier wave coupling unit, the emitter of another terminating diode D4, Transient Suppression Diode P2, diode D2 and triode T1.The terminating diode D4 of diode D3, other end ground connection.The emitter of a termination capacitor C4, diode D4, diode D2 and the triode T1 of Transient Suppression Diode P2, other end ground connection.The collector electrode of triode T2 is connected with the collector electrode of triode T1, the grounded emitter of triode T2.The base stage of diode D1 one terminating resistor R4 and triode T2, other end ground connection.The D end of resistance R 5 one termination capacitor C4 and carrier wave coupling unit, other end ground connection.
In the utility model low-voltage power line carrier communication circuit, the carrier wave coupling unit connects power line, is responsible for the signal of input and output is coupled; The carrier wave receiving element is responsible for the signal that receives after being coupled is carried out the filtering amplitude limit; The carrier processing unit is responsible for the signal that receives and send is carried out demodulation and modulation; The carrier wave transmitting element is responsible for output signal is carried out power amplification.
The beneficial effects of the utility model are, have simplified the low voltage electric power carrier communication circuit, have improved the reliability of transfer of data, have solved the problem that low power line carrier communication easily is disturbed.
The utility model is applicable to the low-voltage power line carrier communication circuit.
Description of drawings
Fig. 1 is the utility model low-voltage power line carrier communication circuit figure;
Among the figure: the 1st, the carrier wave coupling unit; The 2nd, the carrier wave receiving element; The 3rd, the carrier processing unit; The 4th, the carrier wave transmitting element.
Embodiment
The utility model embodiment as shown in Figure 1.
Present embodiment low-voltage power line carrier communication circuit is comprised of carrier wave coupling unit 1, carrier wave receiving element 2, carrier processing unit 3 and carrier wave transmitting element 4.
Carrier wave coupling unit 1 is comprised of power transformation device TR1, capacitor C 2,2,3 elements of inductance L; Capacitor C 2 and inductance L 2 are connected on respectively on two lead-out wires of the former limit of power transformation device TR1 winding; One end line of transformer TR1 secondary winding is carried the resistance R 1 of ripple receiving element, another end line ground connection, and the centre tap of transformer TR1 secondary winding is carried ripple transmitter unit resistance R 5.
Carrier wave receiving element 2 is by resistance R 1, capacitor C 1, capacitor C 3, and inductance L 1, Transient Suppression Diode P1,5 elements form; Resistance R 1 one ends connect the C end of carrier wave coupling unit transformer TR1, and the other end connects inductance L 1, capacitor C 1, Transient Suppression Diode P1, capacitor C 3; An end is connected other end ground connection after inductance L 1, capacitor C 1, the Transient Suppression Diode P1 parallel connection with resistance R 1, capacitor C 3.Capacitor C 3 one ends are connected with resistance R 1, inductance L 1, capacitor C 1, Transient Suppression Diode P1, and the other end connects the A end of carrier processing cell processing chip MCU.
Carrier processing unit 3 is by resistance R 2, external filter Q, and data processing chip (MCU) and peripheral circuit form.Resistance R 2 one termination 5V power supplys, the B end of another termination data processing chip MCU.Two terminals of external filter Q connect respectively B end and the C end of data processing chip MCU, and another terminal of external filter Q connects the 5V power supply.
Carrier wave transmitting element 4 is by capacitor C 4, capacitor C 5, capacitor C 6, resistance R 3, resistance R 4, resistance R 5, and diode D1, diode D2, diode D3, diode D4, triode T1, triode T2, Transient Suppression Diode P2,13 elements form; One end of capacitor C 6 and the D end of carrying ripple processing unit MCU after capacitor C 5 is connected, capacitor C 6 other end connecting resistance R3, capacitor C 5 other end connecting resistance R4.One termination capacitor C6 of resistance R 3, the base stage of another terminating diode D2 and triode T1.One termination capacitor C5 of resistance R 4, the base stage of another terminating diode D1 and triode T2.The D end of capacitor C 4 one terminating resistor R5 and carrier wave coupling unit, the emitter of another terminating diode D4, Transient Suppression Diode P2, diode D2 and triode T1.The terminating diode D4 of diode D3, other end ground connection.The emitter of a termination capacitor C4, diode D4, diode D2 and the triode T1 of Transient Suppression Diode P2, other end ground connection.The collector electrode of triode T2 is connected with the collector electrode of triode T1, the grounded emitter of triode T2.The base stage of diode D1 one terminating resistor R4 and triode T2, other end ground connection.The D end of resistance R 5 one termination capacitor C4 and carrier wave coupling unit, other end ground connection.

Claims (1)

1. a low-voltage powerline carrier communication circuit is characterized in that, described telecommunication circuit is comprised of carrier wave coupling unit (1), carrier wave receiving element (2), carrier processing unit (3) and carrier wave transmitting element (4);
Described carrier wave coupling unit (1) is comprised of power transformation device TR1, capacitor C 2,2,3 elements of inductance L; Capacitor C 2 and inductance L 2 are connected on respectively on two lead-out wires of the former limit of power transformation device TR1 winding; One end line of transformer TR1 secondary winding is carried the resistance R 1 of ripple receiving element, another end line ground connection, and the centre tap of transformer TR1 secondary winding is carried ripple transmitter unit resistance R 5;
Described carrier wave receiving element (2) is by resistance R 1, capacitor C 1, capacitor C 3, and inductance L 1, Transient Suppression Diode P1,5 elements form; Resistance R 1 one ends connect the C end of carrier wave coupling unit transformer TR1, and the other end connects inductance L 1, capacitor C 1, Transient Suppression Diode P1, capacitor C 3; An end is connected other end ground connection after inductance L 1, capacitor C 1, the Transient Suppression Diode P1 parallel connection with resistance R 1, capacitor C 3; Capacitor C 3 one ends are connected with resistance R 1, inductance L 1, capacitor C 1, Transient Suppression Diode P1, and the other end connects the A end of carrier processing cell processing chip MCU;
Described carrier processing unit (3) is by resistance R 2, external filter Q, and data processing chip and peripheral circuit form; Resistance R 2 one termination 5V power supplys, the B end of another termination data processing chip MCU; Two terminals of external filter Q connect respectively B end and the C end of data processing chip MCU, and another terminal of external filter Q connects the 5V power supply;
Carrier wave transmitting element (4) is by capacitor C 4, capacitor C 5, capacitor C 6, resistance R 3, resistance R 4, resistance R 5, and diode D1, diode D2, diode D3, diode D4, triode T1, triode T2, Transient Suppression Diode P2,13 elements form; One end of capacitor C 6 and the D end of carrying ripple processing unit MCU after capacitor C 5 is connected, capacitor C 6 other end connecting resistance R3, capacitor C 5 other end connecting resistance R4; One termination capacitor C6 of resistance R 3, the base stage of another terminating diode D2 and triode T1; One termination capacitor C5 of resistance R 4, the base stage of another terminating diode D1 and triode T2; The D end of capacitor C 4 one terminating resistor R5 and carrier wave coupling unit, the emitter of another terminating diode D4, Transient Suppression Diode P2, diode D2 and triode T1; The terminating diode D4 of diode D3, other end ground connection; The emitter of a termination capacitor C4, diode D4, diode D2 and the triode T1 of Transient Suppression Diode P2, other end ground connection; The collector electrode of triode T2 is connected with the collector electrode of triode T1, the grounded emitter of triode T2; The base stage of diode D1 one terminating resistor R4 and triode T2, other end ground connection; The D end of resistance R 5 one termination capacitor C4 and carrier wave coupling unit, other end ground connection.
CN 201220424038 2012-08-25 2012-08-25 Low voltage power line carrier communication circuit Expired - Fee Related CN202818291U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220424038 CN202818291U (en) 2012-08-25 2012-08-25 Low voltage power line carrier communication circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220424038 CN202818291U (en) 2012-08-25 2012-08-25 Low voltage power line carrier communication circuit

Publications (1)

Publication Number Publication Date
CN202818291U true CN202818291U (en) 2013-03-20

Family

ID=47877095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220424038 Expired - Fee Related CN202818291U (en) 2012-08-25 2012-08-25 Low voltage power line carrier communication circuit

Country Status (1)

Country Link
CN (1) CN202818291U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103929217A (en) * 2014-05-05 2014-07-16 阳光电源股份有限公司 Direct-current power line carrier communication transceiver, transmitter and receiver
CN105225462A (en) * 2015-08-31 2016-01-06 贵州电网有限责任公司贵阳供电局 A kind of power carrier charging base
CN103929217B (en) * 2014-05-05 2016-11-30 阳光电源股份有限公司 Direct current power carrier communication transceiver, transmitter and receiver
CN106712806A (en) * 2017-01-03 2017-05-24 西京学院 OFDM-based high-speed power line carrier communication device and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103929217A (en) * 2014-05-05 2014-07-16 阳光电源股份有限公司 Direct-current power line carrier communication transceiver, transmitter and receiver
CN103929217B (en) * 2014-05-05 2016-11-30 阳光电源股份有限公司 Direct current power carrier communication transceiver, transmitter and receiver
CN105225462A (en) * 2015-08-31 2016-01-06 贵州电网有限责任公司贵阳供电局 A kind of power carrier charging base
CN106712806A (en) * 2017-01-03 2017-05-24 西京学院 OFDM-based high-speed power line carrier communication device and method
CN106712806B (en) * 2017-01-03 2020-08-11 西京学院 OFDM-based high-speed power line carrier communication device and method

Similar Documents

Publication Publication Date Title
CN201623706U (en) Low-voltage power line carrier communication module
CN103457637B (en) Double-channel power line carrier communication module circuit and application system thereof
CN201335851Y (en) Ammeter data acquisition device
CN201332299Y (en) Single-phase multifunctional electric power monitoring apparatus
CN102420871B (en) Network data acquirer
CN202818291U (en) Low voltage power line carrier communication circuit
CN204498119U (en) High-speed power carrier module
CN203800326U (en) Automatic power-off socket
CN102034345B (en) Twisted pair carrier communication circuit for automatic meter reading system and method thereof
CN206756904U (en) Multifunction electric meter and kilowatt meter reading-out system
CN205265685U (en) Power line carrier communication device
CN202014236U (en) Input/output isolation module
CN202364117U (en) Internal power supply circuit of concentrator
CN204462290U (en) A kind of power monitoring device
CN102025399B (en) Asymmetrical carrier communication system of electric energy meter
CN106230482A (en) Power-line carrier communication method and system
CN208924258U (en) A kind of RS485 full duplex communication circuit of ammeter
CN203747818U (en) Medium-voltage power line carrier communication connection structure based on mixed lines
CN206282422U (en) The switching power unit and concentrator of integrated broadband route
CN204859131U (en) Adopt power line carrier communication's receipt filter circuit
CN102006101A (en) Power line carrier communication module
CN201869196U (en) Twisted-pair carrier communication circuit for automatic meter reading system
CN204142835U (en) A kind of single-phase electric energy meter
CN203289434U (en) A power line carrier communication interface apparatus capable of preventing signal attenuation
CN204498136U (en) Power carrier switch

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130320

Termination date: 20180825