CN204089757U - A kind of IGBT of current transformer drives and receives and fault feedback circuit - Google Patents
A kind of IGBT of current transformer drives and receives and fault feedback circuit Download PDFInfo
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- CN204089757U CN204089757U CN201420556326.8U CN201420556326U CN204089757U CN 204089757 U CN204089757 U CN 204089757U CN 201420556326 U CN201420556326 U CN 201420556326U CN 204089757 U CN204089757 U CN 204089757U
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Abstract
The utility model to relate in watercraft electric propulsion system the drive singal of IGBT power model and the transfer circuit of fault-signal in current transformer, the IGBT being specially a kind of current transformer drives and receives and fault feedback circuit, comprise differential signal and form circuit and differential signal treatment circuit, differential signal forms circuit and comprises high speed MSOFET driver U1, differential signal treatment circuit comprises High-Speed Coupled Device U2, first schmitt inverter U3A and the second schmitt inverter U3B, this circuit adopts high-speed driver to change single level signal into differential signal, after long range propagation, by photoelectrical coupler, differential signal is converted to single level signal, coordinated by suitable resistance-capacitance circuit, well achieve the integrality of signal, the problem that the drive singal solving IGBT power model can not can not be transmitted in real time by reliable delivery and fault-signal.
Description
Technical field
The utility model to relate in watercraft electric propulsion system the drive singal of IGBT power model and the transfer circuit of fault-signal in current transformer, and the IGBT being specially a kind of current transformer drives and receives and fault feedback circuit.
Background technology
Experimentally result adopts the boats and ships of electric propulsion system to have obvious advantage than traditional boats and ships in mobility, emergency capability, power performance, economy, vibration noise, Ship Controling, layout and security reliability etc.; electric propulsion system comprises diesel engine, current transformer, propulsion electric machine, and wherein the information of diesel engine, gear box, propulsion electric machine, Vessel's Description, boats and ships carriage clock etc. gets up and the control and scheduling co-design of comprehensive various information realization electric propulsion boats and ships by current transformer.IGBT in current transformer is the critical component realizing all power conversion, and its driving reception is fed back with fault and seemed particularly important.Current transformer in actual applications, along with power grade improve, IGBT drive plate and IGBT power model apart from elongating, electromagnetic environment more complicated after, the PWM driving pulse antijamming capability, transmission range etc. of IGBT power model are proposed higher requirement.Therefore the IGBT needing to invent a kind of electric propulsion boats and ships current transformer drives and receives and fault feedback circuit, and it has the outstanding advantages such as transmission range length, good impact resistance, antijamming capability be strong, can meet the requirement of electric propulsion current transformer to reliability, real-time.
Summary of the invention
The problem that the utility model can not can not be transmitted by reliable delivery and fault-signal in real time in order to the drive singal solving IGBT power model, the IGBT providing a kind of current transformer drives and receives and fault feedback circuit.
The utility model adopts following technical scheme to realize: a kind of IGBT of current transformer drives and receives and fault feedback circuit, comprises differential signal and form circuit and differential signal treatment circuit;
Differential signal forms circuit and comprises high speed MSOFET driver U1, the first input end of high speed MSOFET driver U1 is connected with the second input, first input end is connected with power supply by the first resistance, the reversed-phase output of high speed MSOFET driver U1 is connected with one end of the first electric capacity C1 by the second resistance R2, the in-phase output end of high speed MSOFET driver U1 passes through one end of the 3rd resistance R3 and the second electric capacity C2, and the other end of the first electric capacity C1 is connected with the other end of the second electric capacity C2;
Differential signal treatment circuit comprises High-Speed Coupled Device U2, first schmitt inverter U3A and the second schmitt inverter U3B, the six resistance R6 of input diode anode by connecting successively of High-Speed Coupled Device U2, 4th resistance R4 is connected with the negative electrode of input diode with the 3rd electric capacity C3, the circuit two ends be connected to form at the 4th resistance R4 and the 3rd electric capacity C3 are parallel with the 5th resistance R5, the input diode anode of High-Speed Coupled Device U2 is also connected with the negative electrode of diode D1, the anode of diode D1 is connected with input diode negative electrode, the power supply termination power of High-Speed Coupled Device U2, power end is also by the 4th electric capacity C4 ground connection, the earth terminal ground connection of High-Speed Coupled Device U2, the output of High-Speed Coupled Device U2 is connected with the input of the first schmitt inverter U3A by the 7th resistance R7, the input of the first schmitt inverter U3A is by the 5th electric capacity C5 ground connection, the output of the first schmitt inverter U3A is connected with the input of the second schmitt inverter U3B,
The second resistance R2 that differential signal is formed in circuit is connected with the 4th resistance R4 junction with the 6th resistance R6 in differential signal treatment circuit by twisted-pair feeder with the first electric capacity C1 junction, and the 3rd resistance R3 that differential signal is formed in circuit is connected with the High-Speed Coupled Device U2 input diode negative electrode in the differential signal treatment circuit in differential signal treatment circuit by twisted-pair feeder with the second electric capacity C2 junction.
The IGBT of current transformer drives reception and fault feedback circuit to comprise differential signal and forms circuit and differential signal treatment circuit, these two circuit are connected by differential twisted pair, when working as IGBT drive singal receiving circuit, differential signal forms the input of circuit and is connected with the drive singal output of master controller, the output of differential signal treatment circuit is connected with the control end of IGBT power model, the IGBT drive singal that master controller is sent by high speed MSOFET driver U1 by differential signal formation circuit changes differential signal into, pass through differential twisted pair, be connected to differential signal treatment circuit, change differential signal into single level signal by High-Speed Coupled Device U2 and send into IGBT power model, when working as IGBT fault feedback circuit, the input that differential signal forms circuit is connected with IGBT power model feedback end, differential signal treatment circuit is connected with the feedback signal input terminal on master controller, the IGBT fault-signal that IGBT power model sends by differential signal formation circuit changes differential signal into by high speed MSOFET driver U1, pass through differential twisted pair, be connected to differential signal treatment circuit, change differential signal into single level signal by High-Speed Coupled Device U2 and send into master controller, perform protection act.
Based on said process, the IGBT that the utility model provides a kind of current transformer drives reception and fault feedback circuit, this circuit adopts high-speed driver to change single level signal into differential signal, after long range propagation, by High-Speed Coupled Device, differential signal is converted to single level signal.The utility model effectively solve due to power grade improve, drive plate and power model distance is elongated, electromagnetic environment more complicated after, the reliability that IGBT power model drive singal and fault-signal transmit and promptness problem.The current transformer of this circuit on the boats and ships such as electric propulsion trawler, electric propulsion inland river cargo ship, electric propulsion light-seine fishery ship is applied; practice shows this current driving signal transmitting high speed, stablizes; protection is reliable; there is very strong practical value, achieve good Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The IGBT of current transformer drives and receives and a fault feedback circuit, comprises differential signal and forms circuit and differential signal treatment circuit;
Differential signal forms circuit and comprises high speed MSOFET driver U1, the first input end of high speed MSOFET driver U1 is connected with the second input, first input end is connected with power supply by the first resistance, the reversed-phase output of high speed MSOFET driver U1 is connected with one end of the first electric capacity C1 by the second resistance R2, the in-phase output end of high speed MSOFET driver U1 passes through one end of the 3rd resistance R3 and the second electric capacity C2, and the other end of the first electric capacity C1 is connected with the other end of the second electric capacity C2;
Differential signal treatment circuit comprises High-Speed Coupled Device U2, first schmitt inverter U3A and the second schmitt inverter U3B, the six resistance R6 of input diode anode by connecting successively of High-Speed Coupled Device U2, 4th resistance R4 is connected with the negative electrode of input diode with the 3rd electric capacity C3, the circuit two ends be connected to form at the 4th resistance R4 and the 3rd electric capacity C3 are parallel with the 5th resistance R5, the input diode anode of High-Speed Coupled Device U2 is also connected with the negative electrode of diode D1, the anode of diode D1 is connected with input diode negative electrode, the power supply termination power of High-Speed Coupled Device U2, power end is also by the 4th electric capacity C4 ground connection, the earth terminal ground connection of High-Speed Coupled Device U2, the output of High-Speed Coupled Device U2 is connected with the input of the first schmitt inverter U3A by the 7th resistance R7, the input of the first schmitt inverter U3A is by the 5th electric capacity C5 ground connection, the output of the first schmitt inverter U3A is connected with the input of the second schmitt inverter U3B,
The second resistance R2 that differential signal is formed in circuit is connected with the 4th resistance R4 junction with the 6th resistance R6 in differential signal treatment circuit by twisted-pair feeder with the first electric capacity C1 junction, and the 3rd resistance R3 that differential signal is formed in circuit is connected with the High-Speed Coupled Device U2 input diode negative electrode in the differential signal treatment circuit in differential signal treatment circuit by twisted-pair feeder with the second electric capacity C2 junction.
Claims (1)
1. the IGBT of current transformer drives and receives and a fault feedback circuit, it is characterized in that comprising differential signal forms circuit and differential signal treatment circuit;
Differential signal forms circuit and comprises high speed MSOFET driver U1, the first input end of high speed MSOFET driver U1 is connected with the second input, first input end is connected with power supply by the first resistance, the reversed-phase output of high speed MSOFET driver U1 is connected with one end of the first electric capacity C1 by the second resistance R2, the in-phase output end of high speed MSOFET driver U1 passes through one end of the 3rd resistance R3 and the second electric capacity C2, and the other end of the first electric capacity C1 is connected with the other end of the second electric capacity C2;
Differential signal treatment circuit comprises High-Speed Coupled Device U2, first schmitt inverter U3A and the second schmitt inverter U3B, the six resistance R6 of input diode anode by connecting successively of High-Speed Coupled Device U2, 4th resistance R4 is connected with the negative electrode of input diode with the 3rd electric capacity C3, the circuit two ends be connected to form at the 4th resistance R4 and the 3rd electric capacity C3 are parallel with the 5th resistance R5, the input diode anode of High-Speed Coupled Device U2 is also connected with the negative electrode of diode D1, the anode of diode D1 is connected with input diode negative electrode, the power supply termination power of High-Speed Coupled Device U2, power end is also by the 4th electric capacity C4 ground connection, the earth terminal ground connection of High-Speed Coupled Device U2, the output of High-Speed Coupled Device U2 is connected with the input of the first schmitt inverter U3A by the 7th resistance R7, the input of the first schmitt inverter U3A is by the 5th electric capacity C5 ground connection, the output of the first schmitt inverter U3A is connected with the input of the second schmitt inverter U3B,
The second resistance R2 that differential signal is formed in circuit is connected with the 4th resistance R4 junction with the 6th resistance R6 in differential signal treatment circuit by twisted-pair feeder with the first electric capacity C1 junction, and the 3rd resistance R3 that differential signal is formed in circuit is connected with the High-Speed Coupled Device U2 input diode negative electrode in the differential signal treatment circuit in differential signal treatment circuit by twisted-pair feeder with the second electric capacity C2 junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556326.8U CN204089757U (en) | 2014-09-26 | 2014-09-26 | A kind of IGBT of current transformer drives and receives and fault feedback circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556326.8U CN204089757U (en) | 2014-09-26 | 2014-09-26 | A kind of IGBT of current transformer drives and receives and fault feedback circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089757U true CN204089757U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420556326.8U Withdrawn - After Issue CN204089757U (en) | 2014-09-26 | 2014-09-26 | A kind of IGBT of current transformer drives and receives and fault feedback circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270129A (en) * | 2014-09-26 | 2015-01-07 | 永济新时速电机电器有限责任公司 | IGBT driving receiving and fault feedback circuit of converter |
| CN107505858A (en) * | 2017-08-10 | 2017-12-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Control circuit, control method and device, electronic equipment |
-
2014
- 2014-09-26 CN CN201420556326.8U patent/CN204089757U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270129A (en) * | 2014-09-26 | 2015-01-07 | 永济新时速电机电器有限责任公司 | IGBT driving receiving and fault feedback circuit of converter |
| CN104270129B (en) * | 2014-09-26 | 2017-08-11 | 永济新时速电机电器有限责任公司 | A kind of IGBT drivings of current transformer are received and fault feedback circuit |
| CN107505858A (en) * | 2017-08-10 | 2017-12-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Control circuit, control method and device, electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20170811 |
|
| AV01 | Patent right actively abandoned |