CN203643763U - Two-wire system transmitter simulator circuit for boat - Google Patents
Two-wire system transmitter simulator circuit for boat Download PDFInfo
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- CN203643763U CN203643763U CN201320862185.8U CN201320862185U CN203643763U CN 203643763 U CN203643763 U CN 203643763U CN 201320862185 U CN201320862185 U CN 201320862185U CN 203643763 U CN203643763 U CN 203643763U
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Abstract
The utility model discloses a two-wire system transmitter simulator circuit for a boat. A wire inlet end of a transmitter simulator is connected to one end of a power supply through a transmission line, and a wire outlet end of the transmitter simulator is connected to the other end of the power supply through a transmission line and an ammeter. The two-wire system transmitter simulator circuit is characterized in that the transmitter simulator comprises a constant-current source device U1, a voltage stabilizer U2 and an integrated operational amplifier U3; the integrated operational amplifier comprises three parts, i.e., a U3A, a U3B and a U3C inside; the two integrate operational devices, i.e., the U3B and the U3C of the U3 form a two-stage reverse proportional amplifier; other interfaces of the constant-current source device U1 are connected to a wire outlet end successively through the voltage stabilizer U2, the two integrated operational devices, i.e., the U3C and the U3B, an light-emitting diode LED 1 and a light-emitting diode D2, and the U3C and the U3B are connected to a main circuit in parallel; and a power supply end U3A of the integrated operational amplifier U3 is connected between a wire inlet end and the wire outlet end of the main circuit in parallel. The universal two-wire system transmitter simulator adopting a simplest circuit scheme design is less in circuit element and convenient to connect with the outside, can replace all faulted two-wire system transmitters and provides convenience for an electro-technical officer to improve maintenance work as soon as possible; and, when people run into a four-wire system transmitter, a DC low-voltage power supply is connected with the two-wire-system transmitter in serial, and a current of 4mA to 20mA is provided for the outside.
Description
Technical field
The utility model relates to ship control circuit field, relates in particular to a kind of two-wire system transformer simulator circuit peculiar to vessel.
Background technology
Modern ships more and more adopts two-wire system transformer, and wiring is simple, and two lines are transmitter power supply line, are also signal transmssion lines.As shown in Figure 1, the left side is power supply, adopts two wires transmission power supply, both can detect transmitter output signal with 4-20mA table, also can adopt the accurate resistance sampling electric current of 250 Europe superscript, then carry out data demonstration etc.
When boats and ships are during in oceangoing voyage, various types of transmitters have, if institute's transmitter for subsequent use of being with is not with required corresponding, must have makeshift---universal two-wire transmitter simulator, could fix a breakdown rapidly, and to deal with problems, the system that maintains is normally moved.
Utility model content
For the problem of above-mentioned existence, the utility model object is to provide a kind of circuit component few, externally connects easy two-wire system transformer simulator circuit peculiar to vessel.
In order to achieve the above object, the technical solution adopted in the utility model is as follows: a kind of two-wire system transformer simulator circuit peculiar to vessel, the end of incoming cables of described transmitter simulator is connected on power supply by transmission line, described transmitter simulator leading-out terminal is connected to by transmission line and reometer on the other end of power supply, it is characterized in that, described transmitter simulator comprises constant-current source device U1, voltage stabilizer U2 and integrated operational amplifier U3, in described integrated operational amplifier, comprise three parts U3A, U3B and U3C, the reverse proportional amplifier of two-stage that two integrated computation parts U3B of described U3 and U3C form, other interfaces of described constant-current source device U1 are by passing through successively two integrated computation parts U3C in parallel on voltage stabilizer U2 and main line circuit, U3B and luminotron LED1 and diode D2 are connected on leading-out terminal, the power end U3A of described integrated operational amplifier U3 is connected in parallel between the end of incoming cables and leading-out terminal of main line.
As a kind of improvement of the present utility model, No. two interfaces of described constant-current source device U1 are connected on main line by the resistance R 1 of series connection, on the circuit of described resistance R 1, be parallel with resistance R 2, No. three interfaces of described constant-current source device U1 connect on main line by diode D1.
As a kind of improvement of the present utility model, described integrated computation parts U3C is connected in parallel on voltage stabilizer U2 by resistance R 3 and multi-turn point position device RW, described integrated computation parts U3C is connected with integrated computation parts U3B through resistance R 5 simultaneously, and described integrated computation parts U3B is connected in parallel on main line by triode V1 and resistance R 8.
As a kind of improvement of the present utility model, on described integrated computation parts U3C and the connection line of resistance R 3, be parallel with resistance R 4, the two ends of described resistance R 4 are parallel with capacitor C 1; On the circuit of described integrated computation parts U3B and resistance R 8, be parallel with resistance R 6, the connection line of described resistance R 6 is provided with resistance R 7 and is connected on main line.
As a kind of improvement of the present utility model, on described main line, be parallel with two electrochemical capacitor CD1 and CD2, it is upper that described circuit one end is connected to triode V1, and one end is connected between luminotron LED1 and diode D2; LED1 is current indicator, is also amplifier negative supply circuit.
As a kind of improvement of the present utility model, the model of described constant-current source device U1 is LM134, and the model of described voltage stabilizer U2 is TL431, and the model of described integrated operational amplifier U3 is LM124.
The utility model has the advantage of: the utility model adopts the universal two-wire system transformer simulator of simplest circuit conceptual design, circuit component is few, externally connection is easy, can replace all out of order two-wire system transformers, facilitates electronics person to improve as early as possible maintenance work; Run into four-wire system transmitter, DC low voltage power supply is connected with two-wire system transformer, 4-20mA electric current is externally provided.
Brief description of the drawings
Fig. 1 is conventional boats and ships two-wire system transformer connection sketch;
Fig. 2 is the utility model theory diagram;
Fig. 3 is the utility model circuit structure sketch.
Embodiment
Below in conjunction with brief description of the drawings and embodiment, the utility model is described in further detail.
embodiment 1:as Fig. 1, one shown in 2 and 3 two-wire system transformer simulator peculiar to vessel circuit, the end of incoming cables of described transmitter simulator is connected on power supply by transmission line, described transmitter simulator leading-out terminal is connected to by transmission line and reometer on the other end of power supply, it is characterized in that, described transmitter simulator comprises constant-current source device U1, voltage stabilizer U2 and integrated operational amplifier U3, in described integrated operational amplifier, comprise three parts U3A, U3B and U3C, the reverse proportional amplifier of two-stage that two integrated computation parts U3B of described U3 and U3C form, other interfaces of described constant-current source device U1 are by passing through successively two integrated computation parts U3C in parallel on voltage stabilizer U2 and main line circuit, U3B and luminotron LED1 and diode D2 are connected on leading-out terminal, the power end U3A of described integrated operational amplifier U3 is connected in parallel between the end of incoming cables and leading-out terminal of main line.
embodiment 2:as shown in Figure 3, No. two interfaces of described constant-current source device U1 are connected on main line by the resistance R 1 of series connection, on the circuit of described resistance R 1, are parallel with resistance R 2, and No. three interfaces of described constant-current source device U1 connect on main line by diode D1.
embodiment 3:as shown in Figure 3, described integrated computation parts U3C is connected in parallel on voltage stabilizer U2 by resistance R 3 and multi-turn point position device RW, described integrated computation parts U3C is connected with integrated computation parts U3B through resistance R 5 simultaneously, and described integrated computation parts U3B is connected in parallel on main line by triode V1 and resistance R 8.
embodiment 4:as shown in Figure 3, on described integrated computation parts U3C and the connection line of resistance R 3, be parallel with resistance R 4, the two ends of described resistance R 4 are parallel with capacitor C 1; On the circuit of described integrated computation parts U3B and resistance R 8, be parallel with resistance R 6, the connection line of described resistance R 6 is provided with resistance R 7 and is connected on main line.
embodiment 5:as shown in Figure 3, be parallel with two electrochemical capacitor CD1 and CD2 on described main line, it is upper that described circuit one end is connected to triode V1, and one end is connected between luminotron LED1 and diode D2.
embodiment 6:as shown in Figure 3, the model of described constant-current source device U1 is LM134, and the model of described voltage stabilizer U2 is TL431, and the model of described integrated operational amplifier U3 is LM124; The model of diode D1 is 1N4148, and the model of diode D2 is 1N4007, the model of triode V1 be 9013, C1 and C2 be the electric capacity of 0.1 μ F/63V, CD1 and CD2 are the electrochemical capacitor of 10 μ F/50V, R1, R7, R8 are the resistance of 100 Ω, 1/4W; R2 is the resistance of 1K Ω, 1/4W; R3, R5, R6 are the resistance of 10K Ω, 1/4W; R4 is the resistance of 3.3k Ω, 1/4W.
embodiment 7:workflow of the present utility model:
1) U1, R1, R2, D1 form constant-current source circuit, and continuous current I0=134mV/R1=1.34mA, for the power supply of U2 stabilivolt, forms 2.50V burning voltage, are RW power supply, and whole branch road is current sinking ring 1.34mA electric current altogether;
2) A point voltage scope 0-2.50V, after U3C, R3, R4, the reverse ratio amplifier of the C1 first order, B point voltage scope 0 ∽-0.825V, again after U3B, R5, R6, the reverse ratio amplifier in the C2 second level, C point voltage scope 0 ∽+0.825V, R7, R8 select 100 Europe, after parallel connection, are 50 Europe, form 0 ∽+16.5mA in R7R8;
3) the about 2mA of the working current of U3, circuit static electric current is no more than 4mA, and maximum current, at 20mA, can be simulated the electric current that output needs completely, and any transmitter of emulation provides current signal to system;
4) D2 protection diode, guarantees circuital current direction, if line connects instead, LED1 lamp does not work.
It should be noted that, above-mentioned is only preferred embodiment of the present utility model, is not used for limiting protection domain of the present utility model, and the equivalents of having done on the basis of above-described embodiment all belongs to protection domain of the present utility model.
Claims (6)
1. a two-wire system transformer simulator circuit peculiar to vessel, the end of incoming cables of described transmitter simulator is connected on power supply by transmission line, described transmitter simulator leading-out terminal is connected to by transmission line and reometer on the other end of power supply, it is characterized in that, described transmitter simulator comprises constant-current source device U1, voltage stabilizer U2 and integrated operational amplifier U3, in described integrated operational amplifier, comprise three parts U3A, U3B and U3C, the reverse proportional amplifier of two-stage that two integrated computation parts U3B of described U3 and U3C form, other interfaces of described constant-current source device U1 are by passing through successively two integrated computation parts U3C in parallel on voltage stabilizer U2 and main line circuit, U3B and luminotron LED1 and diode D2 are connected on leading-out terminal, the power end U3A of described integrated operational amplifier U3 is connected in parallel between the end of incoming cables and leading-out terminal of main line.
2. two-wire system transformer simulator circuit peculiar to vessel according to claim 1, it is characterized in that, No. two interfaces of described constant-current source device U1 are connected on main line by the resistance R 1 of series connection, on the circuit of described resistance R 1, be parallel with resistance R 2, No. three interfaces of described constant-current source device U1 connect on main line by diode D1.
3. two-wire system transformer simulator circuit peculiar to vessel according to claim 1, it is characterized in that, described integrated computation parts U3C is connected in parallel on voltage stabilizer U2 by resistance R 3 and multi-turn point position device RW, described integrated computation parts U3C is connected with integrated computation parts U3B through resistance R 5 simultaneously, and described integrated computation parts U3B is connected in parallel on main line by triode V1 and resistance R 8.
4. two-wire system transformer simulator circuit peculiar to vessel according to claim 1, is characterized in that, on described integrated computation parts U3C and the connection line of resistance R 3, is parallel with resistance R 4, and the two ends of described resistance R 4 are parallel with capacitor C 1; On the circuit of described integrated computation parts U3B and resistance R 8, be parallel with resistance R 6, the connection line of described resistance R 6 is provided with resistance R 7 and is connected on main line.
5. two-wire system transformer simulator circuit peculiar to vessel according to claim 1, it is characterized in that, on described main line, be parallel with two electrochemical capacitor CD1 and CD2, it is upper that described circuit one end is connected to triode V1, and one end is connected between luminotron LED1 and diode D2.
6. two-wire system transformer simulator circuit peculiar to vessel according to claim 1, is characterized in that, the model of described constant-current source device U1 is LM134, and the model of described voltage stabilizer U2 is TL431, and the model of described integrated operational amplifier U3 is LM124.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320862185.8U CN203643763U (en) | 2013-12-25 | 2013-12-25 | Two-wire system transmitter simulator circuit for boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320862185.8U CN203643763U (en) | 2013-12-25 | 2013-12-25 | Two-wire system transmitter simulator circuit for boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643763U true CN203643763U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320862185.8U Expired - Fee Related CN203643763U (en) | 2013-12-25 | 2013-12-25 | Two-wire system transmitter simulator circuit for boat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688309A (en) * | 2017-08-30 | 2018-02-13 | 中车青岛四方机车车辆股份有限公司 | A kind of windshield wiper trouble-shooter and fault diagnosis and restorative procedure |
-
2013
- 2013-12-25 CN CN201320862185.8U patent/CN203643763U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688309A (en) * | 2017-08-30 | 2018-02-13 | 中车青岛四方机车车辆股份有限公司 | A kind of windshield wiper trouble-shooter and fault diagnosis and restorative procedure |
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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: 20140611 Termination date: 20161225 |