CN104218944A - Machine telegraph signal conditioning circuit for electric propulsive ship - Google Patents
Machine telegraph signal conditioning circuit for electric propulsive ship Download PDFInfo
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- CN104218944A CN104218944A CN201410498026.3A CN201410498026A CN104218944A CN 104218944 A CN104218944 A CN 104218944A CN 201410498026 A CN201410498026 A CN 201410498026A CN 104218944 A CN104218944 A CN 104218944A
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Abstract
The invention relates to an electric propulsive ship technology, in particular to a machine telegraph signal conditioning circuit for an electric propulsive ship. The machine telegraph signal conditioning circuit comprises an acquisition circuit, a shaping circuit, an isolation circuit and an output voltage regulating circuit. A current signal of a machine telegraph forms a voltage signal on a resistor R1 and a capacitor C, the voltage signal is transmitted to the same-phase input end of an operational amplifier U1A, the output end of the operational amplifier U1A is connected with the reverse-phase input end of an operational amplifier U1B through a resistor R2 and a feedback receiving collector electrode pin of a linear photoelectric coupler U2, the output end of the operational amplifier U1B is connected with an input photodiode cathode of the linear photoelectric coupler U2, an output phototube collector electrode of the linear photoelectric coupler U2 is connected with the reverse-phase input end of an operational amplifier U3A, the output end of the operational amplifier U3A is connected with the same-phase input end of an operational amplifier U3B through a resistor R5 and a resistor R6, and a control chip is fed to the output end of the operational amplifier U3B after voltage stabilization. The machine telegraph signal conditioning circuit is suitable for an electric propulsive ship.
Description
Technical field
The present invention relates to carriage clock signaling conversion circuit in watercraft electric propulsion system, be specially a kind of Electrical Propulsion Ship carriage clock signal conditioning circuit.
Background technology
At present, the basic propulsion system of tradition boats and ships generally adopts the mechanically-propelled mode of diesel engine+gear box+screw, watercraft electric propulsion system is compared with traditional mechanically-propelled mode, adopts the boats and ships of electric propulsion system to have obvious advantage in mobility, emergency capability, power performance, economy, vibration noise, Ship Controling, layout and security reliability etc.And carriage clock is the stepless speed controller in watercraft electric propulsion system, driver sends gear instruction (carriage clock signal) at driver's cabin, and main control unit receives carriage clock signal and drives propulsion electric machine to perform the actions such as advance, retrogressing, traction, braking, acceleration, deceleration, parking.Therefore carriage clock signal reach the accuracy of main control unit and precision most important, have influence on the mobility of Electrical Propulsion Ship, emergency capability, power performance etc.Need the modulate circuit that reliable and stable, conversion accuracy is very high, carriage clock signal is transferred to suitable signal and be used for driving propulsion electric machine to main control unit.
Summary of the invention
The present invention in order to solve now not by carriage clock signal stabilization, precise delivery to the problem of the modulate circuit of main control unit, provide a kind of Electrical Propulsion Ship carriage clock signal conditioning circuit.
The present invention adopts following technical scheme to realize: a kind of Electrical Propulsion Ship carriage clock signal conditioning circuit, comprises Acquisition Circuit, shaping circuit, buffer circuit and output voltage regulation circuit;
Acquisition Circuit comprises the first resistance R1 and the first electric capacity C1;
Shaping circuit comprises the first operational amplifier U1A and the second operational amplifier U1B; The in-phase input end of the first operational amplifier U1A is connected with one end of the first electric capacity C1, the other end ground connection of the first electric capacity C1, first resistance R1 is connected in parallel on the first electric capacity C1 two ends, the inverting input of the first operational amplifier U1A is connected with the output of the first operational amplifier U1A, the output of the first operational amplifier U1A is connected with the in-phase input end of the second operational amplifier U1B by the second resistance R2, the reverse inter-input-ing ending grounding of the second operational amplifier U1B;
Buffer circuit comprises precision photoelectric coupler U2; The input photodiode cathode of precision photoelectric coupler U2 is connected with the output of the second operational amplifier U1B, the input photodiode anode of precision photoelectric coupler U2 is connected with power supply by the 3rd resistance R3, the feedback reception photoelectric tube collector electrode of precision photoelectric coupler U2 is connected with the in-phase input end of the second operational amplifier U1B, the feedback reception photoelectric tube base earth of precision photoelectric coupler U2; The output photoelectric pipe base earth of precision photoelectric coupler U2,
Output voltage regulation circuit comprises the 3rd operational amplifier U3A, four-operational amplifier U3B and voltage-stabiliser tube Z1, the in-phase input end of the 3rd operational amplifier U3A is connected with the output photoelectric pipe base stage of precision photoelectric coupler U2, the inverting input of the 3rd operational amplifier U3A is connected with the output photoelectric pipe collector of precision photoelectric coupler U2, the inverting input of the 3rd operational amplifier U3A is also connected with the output of the 3rd operational amplifier U3A by the 4th resistance R4, the output of the 3rd operational amplifier U3A is connected with the in-phase input end of four-operational amplifier U3B with the 6th resistance R6 by the 5th resistance R5, the in-phase input end of four-operational amplifier U3B is by the 6th electric capacity C6 ground connection, the inverting input of four-operational amplifier U3B is connected with the output of the 4th concatenation operation amplifier U3B, and be connected between the 5th resistance R5 and the 6th resistance R6 by the 5th electric capacity C5, the output of four-operational amplifier U3B is as the output of modulate circuit, and by voltage-stabiliser tube Z1 ground connection, voltage-stabiliser tube Z1 two ends are also parallel with the 8th electric capacity C8, 9th electric capacity C9, 7th resistance R7 and the tenth electric capacity C10.
During work, carriage clock signal becomes voltage signal by carriage clock signal conditioning circuit from current signal, and is admitted to the control chip of main control unit, and control unit controls the actions such as boats and ships advance, retrogressing, acceleration, deceleration, traction, braking.Specific works process is as follows: carriage clock signal is current signal, by being isolated by this signal after Acquisition Circuit, shaping circuit, buffer circuit, output voltage regulation circuit and converting voltage signal to, the control chip sent in main control unit controls Electrical Propulsion Ship running status.In the process, the first voltage signal that current signal transfers to by Acquisition Circuit, the effect of shaping circuit is as follows: the first voltage signal improves input impedance by the first operational amplifier U1A, the input photodiode of precision photoelectric coupler U2 is outputted to again through the second operational amplifier U1B, the signal that first operational amplifier U1A exports simultaneously sends into the feedback reception photoelectric tube of precision photoelectric coupler U2, carry out the linearisation that linear adjustment photoelectrical coupler U2 inputs photodiode, buffer circuit adopts precision photoelectric coupler U2, by different with the access of output photoelectric pipe for feedback reception photoelectric tube " ", serve the effect of signal isolation, output voltage regulation circuit effect is as follows: the signal of isolation and amplifier is become the second voltage signal by the 3rd operational amplifier U3A, and the second voltage signal is by sending into control chip after four-operational amplifier U3B, electric capacity C8, electric capacity C9, resistance R7, voltage-stabiliser tube Z1, electric capacity C10 shaping filter.
The invention provides a kind of Electrical Propulsion Ship carriage clock signal conditioning circuit, this modulate circuit have employed precision photoelectric coupler U2, it uses high matching transistor to make servo feedback receive photoelectric tube loop and output photoelectric tube loop reaches extraordinary coupling, improve stability and the accuracy of carriage clock signal, precision photoelectric coupler U2 provides the input signal change of high transmission line degree and wide region, and it is very good that these characteristics make carriage clock Signal transmissions linearly spend.The present invention efficiently solves the problem of Electrical Propulsion Ship carriage clock signal condition, and successful Application on electric propulsion trawler, electric propulsion inland river cargo ship, electric propulsion light-seine fishery ship, achieve good Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
A kind of Electrical Propulsion Ship carriage clock signal conditioning circuit, comprises Acquisition Circuit, shaping circuit, buffer circuit and output voltage regulation circuit;
Acquisition Circuit comprises the first resistance R1 and the first electric capacity C1;
Shaping circuit comprises the first operational amplifier U1A and the second operational amplifier U1B; The in-phase input end of the first operational amplifier U1A is connected with one end of the first electric capacity C1, the other end ground connection of the first electric capacity C1, first resistance R1 is connected in parallel on the first electric capacity C1 two ends, the inverting input of the first operational amplifier U1A is connected with the output of the first operational amplifier U1A, the output of the first operational amplifier U1A is connected with the in-phase input end of the second operational amplifier U1B by the second resistance R2, the reverse inter-input-ing ending grounding of the second operational amplifier U1B;
Buffer circuit comprises precision photoelectric coupler U2; The input photodiode cathode of precision photoelectric coupler U2 is connected with the output of the second operational amplifier U1B, the input photodiode anode of precision photoelectric coupler U2 is connected with power supply by the 3rd resistance R3, the feedback reception photoelectric tube collector electrode of precision photoelectric coupler U2 is connected with the in-phase input end of the second operational amplifier U1B, the feedback reception photoelectric tube base earth of precision photoelectric coupler U2; The output photoelectric pipe base earth of precision photoelectric coupler U2,
Output voltage regulation circuit comprises the 3rd operational amplifier U3A, four-operational amplifier U3B and voltage-stabiliser tube Z1, the in-phase input end of the 3rd operational amplifier U3A is connected with the output photoelectric pipe base stage of precision photoelectric coupler U2, the inverting input of the 3rd operational amplifier U3A is connected with the output photoelectric pipe collector of precision photoelectric coupler U2, the inverting input of the 3rd operational amplifier U3A is also connected with the output of the 3rd operational amplifier U3A by the 4th resistance R4, the output of the 3rd operational amplifier U3A is connected with the in-phase input end of four-operational amplifier U3B with the 6th resistance R6 by the 5th resistance R5, the in-phase input end of four-operational amplifier U3B is by the 6th electric capacity C6 ground connection, the inverting input of four-operational amplifier U3B is connected with the output of the 4th concatenation operation amplifier U3B, and be connected between the 5th resistance R5 and the 6th resistance R6 by the 5th electric capacity C5, the output of four-operational amplifier U3B is as the output of modulate circuit, and by voltage-stabiliser tube Z1 ground connection, voltage-stabiliser tube Z1 two ends are also parallel with the 8th electric capacity C8, 9th electric capacity C9, 7th resistance R7 and the tenth electric capacity C10.
During concrete enforcement, the anode of the input photodiode of precision photoelectric coupler U2 is connected with 24V power supply, and the collector electrode of the output photoelectric pipe of precision photoelectric coupler U2 adopts 15V Power supply.
Claims (1)
1. an Electrical Propulsion Ship carriage clock signal conditioning circuit, is characterized in that comprising Acquisition Circuit, shaping circuit, buffer circuit and output voltage regulation circuit;
Acquisition Circuit comprises the first resistance R1 and the first electric capacity C1;
Shaping circuit comprises the first operational amplifier U1A and the second operational amplifier U1B; The in-phase input end of the first operational amplifier U1A is connected with one end of the first electric capacity C1, the other end ground connection of the first electric capacity C1, first resistance R1 is connected in parallel on the first electric capacity C1 two ends, the inverting input of the first operational amplifier U1A is connected with the output of the first operational amplifier U1A, the output of the first operational amplifier U1A is connected with the in-phase input end of the second operational amplifier U1B by the second resistance R2, the reverse inter-input-ing ending grounding of the second operational amplifier U1B;
Buffer circuit comprises precision photoelectric coupler U2; The input photodiode cathode of precision photoelectric coupler U2 is connected with the output of the second operational amplifier U1B, the input photodiode anode of precision photoelectric coupler U2 is connected with power supply by the 3rd resistance R3, the feedback reception photoelectric tube collector electrode of precision photoelectric coupler U2 is connected with the in-phase input end of the second operational amplifier U1B, the feedback reception photoelectric tube base earth of precision photoelectric coupler U2; The output photoelectric pipe base earth of precision photoelectric coupler U2,
Output voltage regulation circuit comprises the 3rd operational amplifier U3A, four-operational amplifier U3B and voltage-stabiliser tube Z1, the in-phase input end of the 3rd operational amplifier U3A is connected with the output photoelectric pipe base stage of precision photoelectric coupler U2, the inverting input of the 3rd operational amplifier U3A is connected with the output photoelectric pipe collector of precision photoelectric coupler U2, the inverting input of the 3rd operational amplifier U3A is also connected with the output of the 3rd operational amplifier U3A by the 4th resistance R4, the output of the 3rd operational amplifier U3A is connected with the in-phase input end of four-operational amplifier U3B with the 6th resistance R6 by the 5th resistance R5, the in-phase input end of four-operational amplifier U3B is by the 6th electric capacity C6 ground connection, the inverting input of four-operational amplifier U3B is connected with the output of the 4th concatenation operation amplifier U3B, and be connected between the 5th resistance R5 and the 6th resistance R6 by the 5th electric capacity C5, the output of four-operational amplifier U3B is as the output of modulate circuit, and by voltage-stabiliser tube Z1 ground connection, voltage-stabiliser tube Z1 two ends are also parallel with the 8th electric capacity C8, 9th electric capacity C9, 7th resistance R7 and the tenth electric capacity C10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498026.3A CN104218944A (en) | 2014-09-26 | 2014-09-26 | Machine telegraph signal conditioning circuit for electric propulsive ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410498026.3A CN104218944A (en) | 2014-09-26 | 2014-09-26 | Machine telegraph signal conditioning circuit for electric propulsive ship |
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| CN104218944A true CN104218944A (en) | 2014-12-17 |
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| CN201410498026.3A Pending CN104218944A (en) | 2014-09-26 | 2014-09-26 | Machine telegraph signal conditioning circuit for electric propulsive ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152557A (en) * | 2017-12-26 | 2018-06-12 | 常州三立精图光电有限公司 | Sample circuit is isolated in a kind of feedback current |
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| CN101908864A (en) * | 2010-08-17 | 2010-12-08 | 秦皇岛市康泰医学系统有限公司 | Signal acquisition processing circuit for digital brain electrical activity mapping instrument |
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| CN204068928U (en) * | 2014-09-26 | 2014-12-31 | 永济新时速电机电器有限责任公司 | A kind of Electrical Propulsion Ship carriage clock signal conditioning circuit |
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| CN108152557A (en) * | 2017-12-26 | 2018-06-12 | 常州三立精图光电有限公司 | Sample circuit is isolated in a kind of feedback current |
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