CN204179960U - A kind of novel transmitter - Google Patents
A kind of novel transmitter Download PDFInfo
- Publication number
- CN204179960U CN204179960U CN201420633950.3U CN201420633950U CN204179960U CN 204179960 U CN204179960 U CN 204179960U CN 201420633950 U CN201420633950 U CN 201420633950U CN 204179960 U CN204179960 U CN 204179960U
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- Prior art keywords
- transmitter
- mutual inductor
- novel
- utility
- electricity
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Abstract
The utility model discloses a kind of novel transmitter, it is characterized in that: described transmitter is that to be provided with electricity-getting mutual inductor be that transmitter is powered in transmitter inside.Owing to adopting above-mentioned structure, the utility model is integrated with an electricity-getting mutual inductor in the inside of transmitter, makes it produce 12V power supply for transmitter.Make the utility model have wiring simple, cost is low, high reliability.
Description
Technical field
The utility model relates to the technological improvement field of transmitter, particularly a kind of novel transmitter.
Background technology
Existing transmitter all needs external power supply.General transmitter is that 12V, 24V power, and this, with regard to needing the electric power system using the occasion of transmitter to increase a set of AC/DC, causes the complexity of wiring, the increase of cost, occupy valuable space resources simultaneously.
For the problems referred to above, provide a kind of novel transmitter, simplify wiring, reduce costs low, improving reliability is the problem that prior art needs to solve.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of novel transmitter, to reach simplification wiring, reduces costs low, improves the object of reliability.
For achieving the above object, the technical solution of the utility model is, a kind of novel transmitter, is characterized in that: described transmitter is that to be provided with electricity-getting mutual inductor be that transmitter is powered in transmitter inside.
Described electricity-getting mutual inductor is that transmitter is powered by rectification circuit and filter circuit of pressure-stabilizing successively.
Described electricity-getting mutual inductor outlet side output saturation signal, after all-wave saturation signal is become direct current signal by rectifier bridge D1, by 24V voltage stabilizing didoe D2, sawtooth waveforms is stabilized to 24V, again through large value capacitor C1 and low value capacitor C2 combined filter, export 24V burning voltage.
Resistance R1, R2 respectively ground connection and resistance is equal is provided with in the circuit of described electricity-getting mutual inductor.
A novel transmitter, owing to adopting above-mentioned structure, the utility model is integrated with an electricity-getting mutual inductor in the inside of transmitter, makes it produce 12V power supply for transmitter.Make the utility model have wiring simple, cost is low, high reliability.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the structural representation of power taking part in a kind of novel transmitter of the utility model;
Fig. 2 is the circuit diagram of electricity-getting mutual inductor in a kind of novel transmitter of the utility model;
Fig. 3 is the circuit diagram of rectification circuit in a kind of novel transmitter of the utility model;
Fig. 4 is the circuit diagram of filter circuit of pressure-stabilizing in a kind of novel transmitter of the utility model;
In FIG, 1, electricity-getting mutual inductor; 2, rectification circuit; 3, filter circuit of pressure-stabilizing.
Embodiment
As Figure 1-4, the utility model transmitter inside be provided with electricity-getting mutual inductor 1 successively by rectification circuit 2 and filter circuit of pressure-stabilizing 3 for transmitter is powered.
Electricity-getting mutual inductor 1 outlet side output saturation signal, after all-wave saturation signal is become direct current signal by rectifier bridge D1, by 24V voltage stabilizing didoe D2, sawtooth waveforms is stabilized to 24V, again through large value capacitor C1 and low value capacitor C2 combined filter, export 24V burning voltage.Resistance R1, R2 respectively ground connection and resistance is equal is provided with in the circuit of electricity-getting mutual inductor 1.
Because the voltage-current characteristic of diode is in cut-off or characteristic curve not sweep when small-signal, the unilateral conduction of general diode forms rectification circuit, and when small-signal detection, output will can not get original signal (or make original signal distortion very large).In the utility model, diode is placed in the feedback control loop of operational amplifier composition, just can greatly slackens this impact, improve circuit precision.The U+ signal obtained after RC filtering again.This direct current signal and primary side current effective value proportional.
0 ~ 20mA signal is obtained through two-wire system voltage-current converter circuit.To break principle according to the empty short void of operational amplifier, the in-phase input end of U4, reverse input end, the in-phase input end of U5, reverse input end voltage are equal, so the voltage of R11 is exactly U+, the electric current flowing through R11 resistance according to Ohm's law is U+/R11, and this electric current is also flow through the electric current adopting resistance RL.
During debugging, getting RL is 500 Ω precision resistances, and when current transformer primary side is rated value, adjustment slide rheostat R11, makes RL voltage be 10V.
Existing transmitter all needs external power supply.General transmitter is that 12V, 24V power, and this, with regard to needing the electric power system using the occasion of transmitter to increase a set of AC/DC, causes the complexity of wiring, the increase of cost, occupy valuable space resources simultaneously.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the various improvement that technical solutions of the utility model are carried out; or directly apply to other occasion, all within protection range of the present utility model without improving.
Claims (4)
1. a novel transmitter, is characterized in that: described transmitter is that transmitter inside is provided with electricity-getting mutual inductor (1) for transmitter and powers.
2. a kind of novel transmitter according to claim 1, is characterized in that: described electricity-getting mutual inductor (1) successively by rectification circuit (2) and filter circuit of pressure-stabilizing (3) for transmitter is powered.
3. a kind of novel transmitter according to claim 1 and 2, it is characterized in that: described electricity-getting mutual inductor (1) outlet side output saturation signal, after all-wave saturation signal is become direct current signal by rectifier bridge D1, by 24V voltage stabilizing didoe D2, sawtooth waveforms is stabilized to 24V, again through large value capacitor C1 and low value capacitor C2 combined filter, export 24V burning voltage.
4. a kind of novel transmitter according to claim 1 and 2, is characterized in that: be provided with resistance R1, R2 respectively ground connection and resistance is equal in the circuit of described electricity-getting mutual inductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633950.3U CN204179960U (en) | 2014-10-29 | 2014-10-29 | A kind of novel transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633950.3U CN204179960U (en) | 2014-10-29 | 2014-10-29 | A kind of novel transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179960U true CN204179960U (en) | 2015-02-25 |
Family
ID=52568734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420633950.3U Expired - Fee Related CN204179960U (en) | 2014-10-29 | 2014-10-29 | A kind of novel transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204179960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044597A (en) * | 2015-05-29 | 2015-11-11 | 国家电网公司 | Test system for parameter actual measurement tests of steam turbine generator unit prime mover and regulating system thereof |
-
2014
- 2014-10-29 CN CN201420633950.3U patent/CN204179960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044597A (en) * | 2015-05-29 | 2015-11-11 | 国家电网公司 | Test system for parameter actual measurement tests of steam turbine generator unit prime mover and regulating system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170522 Address after: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District No. 118 North Park electrical components Patentee after: Anhui Xinlong Automation Co., Ltd. Address before: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District No. 118 North Park electrical components Patentee before: Xinlong Electric-Appliance Co., Ltd., Anhui |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20171029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |