CN204102020U - A kind of constant-current supply system for earth mat current by pass proving installation transmitter module - Google Patents
A kind of constant-current supply system for earth mat current by pass proving installation transmitter module Download PDFInfo
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- CN204102020U CN204102020U CN201420617607.XU CN201420617607U CN204102020U CN 204102020 U CN204102020 U CN 204102020U CN 201420617607 U CN201420617607 U CN 201420617607U CN 204102020 U CN204102020 U CN 204102020U
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Abstract
The utility model discloses a kind of constant-current supply system for earth mat current by pass proving installation transmitter module, comprise Power Entry Module, Voltage Regulator Module, pressure differential detection module, constant current output module, Power Entry Module possesses over-voltage over-current protection function; Voltage Regulator Module carries out level conversion to input voltage; Constant current output module is for generation of steady current; Pressure differential detection module detects the voltage of constant current output module output terminal automatically, and exports according to the power supply of this magnitude of voltage control voltage adjustment module; Power Entry Module and Voltage Regulator Module are electrically connected; Constant current output module is connected with pressure differential detection module with Voltage Regulator Module respectively; Pressure differential detection module is connected with Voltage Regulator Module with constant current output module respectively.The utility model can provide wider output voltage range, according to the situation of load, automatically can adjust power, effective extension device serviceable life, has better energy-saving effect.
Description
Technical field
The utility model relates to the underground utilities field of power industry, refers more particularly to a kind of constant-current supply system for earth mat current by pass proving installation transmitter module.
Background technology
The underground utilities that earth mat current by pass proving installation is applicable to power industry position measurement, when it measures operation, the stability of signal transmitter is extremely important, in order to ensure the reliability of signal, usual use constant current drive mode, but traditional constant-current circuit utilization of power rate variance, output voltage range is little, can not ensure the stable output of electric current for high impedance load.
Summary of the invention
The constant-current supply system for earth mat current by pass proving installation transmitter module that the purpose of this utility model is to overcome above-mentioned weak point of the prior art and provides a kind of practicality.
The utility model realizes in the following way:
A kind of constant-current supply system for earth mat current by pass proving installation transmitter module, it is characterized in that: comprise Power Entry Module 1, Voltage Regulator Module 2, pressure differential detection module 3, constant current output module 4, described Power Entry Module 1 can access 12V lithium battery or outside 9-18V direct supply; Power Entry Module 1 possesses over-voltage over-current protection function, and overvoltage protection magnitude of voltage is 24V, and overcurrent protection current value is 3A; The supply voltage that described Voltage Regulator Module 2 pairs of Power Entry Modules 1 input carries out level conversion, and the output voltage range after changing is 1-80V; The power supply that described constant current output module 4 inputs for Power Entry Module 1 produces steady current, and the electric current produced directly exports to load; Described pressure differential detection module 3 detects the voltage of constant current output module 4 output terminal automatically, and exports according to the power supply of this magnitude of voltage control voltage adjustment module 2; Described Power Entry Module 1 is electrically connected with Voltage Regulator Module 2; Described constant current output module 4 is connected with pressure differential detection module 3 with Voltage Regulator Module 2 respectively; Described pressure differential detection module 3 is connected with Voltage Regulator Module 2 with constant current output module 4 respectively.
The beneficial effects of the utility model are: can provide wider output voltage range, according to the situation of load, automatically can adjust power, effective extension device serviceable life, have better energy-saving effect.
Accompanying drawing explanation
Fig. 1 the utility model structural representation.
Embodiment
Now by reference to the accompanying drawings, the utility model embodiment is described in detail in detail:
As shown in Figure 1, a kind of constant-current supply system for earth mat current by pass proving installation transmitter module, comprise Power Entry Module 1, Voltage Regulator Module 2, pressure differential detection module 3, constant current output module 4, Power Entry Module 1 can access 12V lithium battery or outside 9-18V direct supply; Power Entry Module 1 possesses over-voltage over-current protection function, and overvoltage protection magnitude of voltage is 24V, and overcurrent protection current value is 3A; The supply voltage that Voltage Regulator Module 2 pairs of Power Entry Modules 1 input carries out level conversion, and the output voltage range after changing is 1-80V; The power supply that constant current output module 4 inputs for Power Entry Module 1 produces steady current, and the electric current produced directly exports to load; Pressure differential detection module 3 detects the voltage of constant current output module 4 output terminal automatically, and exports according to the power supply of this magnitude of voltage control voltage adjustment module 2; Power Entry Module 1 and Voltage Regulator Module 2 are electrically connected; Constant current output module 4 is connected with pressure differential detection module 3 with Voltage Regulator Module 2 respectively; Pressure differential detection module 3 is connected with Voltage Regulator Module 2 with constant current output module 4 respectively.
The utility model Power Entry Module 1 can access 12V lithium battery or outside 9-18V direct supply; Power Entry Module 1 possesses over-voltage over-current protection function, and overvoltage protection magnitude of voltage is 24V, and overcurrent protection current value is 3A; Voltage Regulator Module 2 pairs of input voltages carry out level conversion, and the output voltage range after changing is 1-80V; Constant current output module 4 is for generation of steady current, and the electric current produced directly exports to load; Pressure differential detection module 3 detects the voltage of constant current output module 4 output terminal automatically, and exports according to the power supply of this magnitude of voltage control voltage adjustment module 2.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. the constant-current supply system for earth mat current by pass proving installation transmitter module, it is characterized in that: comprise Power Entry Module (1), Voltage Regulator Module (2), pressure differential detection module (3), constant current output module (4), described Power Entry Module (1) can access 12V lithium battery or outside 9-18V direct supply; Power Entry Module (1) possesses over-voltage over-current protection function, and overvoltage protection magnitude of voltage is 24V, and overcurrent protection current value is 3A; Described Voltage Regulator Module (2) carries out level conversion to the supply voltage that Power Entry Module (1) inputs, and the output voltage range after changing is 1-80V; The power supply that described constant current output module (4) inputs for Power Entry Module (1) produces steady current, and the electric current produced directly exports to load; Described pressure differential detection module (3) detects the voltage of constant current output module (4) output terminal automatically, and exports according to the power supply of this magnitude of voltage control voltage adjustment module (2); Described Power Entry Module (1) and Voltage Regulator Module (2) are electrically connected; Described constant current output module (4) is connected with pressure differential detection module (3) with Voltage Regulator Module (2) respectively; Described pressure differential detection module (3) is connected with Voltage Regulator Module (2) with constant current output module (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617607.XU CN204102020U (en) | 2014-10-22 | 2014-10-22 | A kind of constant-current supply system for earth mat current by pass proving installation transmitter module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617607.XU CN204102020U (en) | 2014-10-22 | 2014-10-22 | A kind of constant-current supply system for earth mat current by pass proving installation transmitter module |
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| Publication Number | Publication Date |
|---|---|
| CN204102020U true CN204102020U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420617607.XU Active CN204102020U (en) | 2014-10-22 | 2014-10-22 | A kind of constant-current supply system for earth mat current by pass proving installation transmitter module |
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| CN (1) | CN204102020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914907A (en) * | 2015-06-05 | 2015-09-16 | 国网辽宁省电力有限公司葫芦岛供电公司 | Constant current power supply for lightning protection discharging channel test device of artificial earthing electrode |
| CN113625817A (en) * | 2021-08-03 | 2021-11-09 | 无锡天和电子有限公司 | Three-terminal fixed positive output voltage regulator and manufacturing method thereof |
-
2014
- 2014-10-22 CN CN201420617607.XU patent/CN204102020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914907A (en) * | 2015-06-05 | 2015-09-16 | 国网辽宁省电力有限公司葫芦岛供电公司 | Constant current power supply for lightning protection discharging channel test device of artificial earthing electrode |
| CN113625817A (en) * | 2021-08-03 | 2021-11-09 | 无锡天和电子有限公司 | Three-terminal fixed positive output voltage regulator and manufacturing method thereof |
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