CN202837355U - Isolation voltage regulator - Google Patents
Isolation voltage regulator Download PDFInfo
- Publication number
- CN202837355U CN202837355U CN 201220527255 CN201220527255U CN202837355U CN 202837355 U CN202837355 U CN 202837355U CN 201220527255 CN201220527255 CN 201220527255 CN 201220527255 U CN201220527255 U CN 201220527255U CN 202837355 U CN202837355 U CN 202837355U
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- isolation
- voltage
- pressure regulation
- decoupling
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Abstract
The utility model discloses a segregating pressure regulator which comprises a segregating voltage transformation unit, a decoupling unit and a voltage regulating unit. The decoupling unit is used for preventing interference source signals from the feedback to a public supply system. The pressure regulating unit is used for regulating input voltage of tested equipment. The decoupling unit and the pressure regulating unit are arranged in the segregating pressure regulator. The decoupling unit is not necessary to be arranged in a thunderstrike and surging generator. Voltage loss of inductive reactance is avoided. A precise input of input voltage of the tested equipment is guaranteed. The pressure regulating unit is further arranged in the segregating pressure regulator. Output voltage can be adjusted by the pressure regulating unit. Suring testing demands of the tested equipment of different input voltages can be met.
Description
Technical field
The utility model belongs to the electromagnetic compatibility test field, is specifically related to a kind of surge with isolating pressure regulator.
Background technology
The antijamming capability of electronic equipment is the important indicator of estimating its performance, such as antistatic effect, anti-burst of pulses ability, antisurge ability etc.Take lightning surge as example, general employing lightning surge generator is carried in the input end of tested equipment (EUT) at present, with the anti-lightning surge capacity of checking EUT.Yet lightning surge generator also can exert an influence to public electric wire net except to the EUT effect in actual applications.For avoiding above-mentioned situation, lightning surge generator inside generally all arranges the decoupling unit, in order to consume the high-octane lightning surge of high frequency, prevents that lightning surge from feeding back in the public electric wire net, disturbs other equipment in uses in the public electric wire net.
When the lightning surge generator of built-in decoupling unit is linked in the public electric wire net; because the decoupling unit is the LC loop; the electric current of L phase of causing flowing through is not equal to the electric current of the N phase of flowing through, and therefore several amperes the electric current of can flowing through in the ground wire can cause the loop tripping operation that earth leakage protective device is installed.Generally the access isolating transformer is to avoid above-mentioned situation in circuit for industry, and Fig. 1 has provided a kind of structure of lightning surge generator.
The basic structure of existing isolating transformer is: primary coil, iron core and secondary coil, be the disclosed magnetic saturation isolating transformer of CN101087068A such as publication number, this isolating transformer carries out electrical isolation by the input and output to lightning surge generator, thereby avoids tripping operation.But, even in electrical network, increased the isolating transformer of existing structure, because the induction reactance in LC loop has consumed certain voltage, so that the actual input voltage of EUT can not equate with the voltage of isolating transformer output terminal, can bring certain measuring error.In addition, tested equipment operating voltage is not identical, and the transformation multiple of existing isolating transformer is certain, only can be applicable to the lightning surge test of the tested equipment of specific voltage, and range of application is narrower.
The utility model content
For above-mentioned the deficiencies in the prior art, the utility model aims to provide a kind of isolation pressure regulator with decoupling and voltage regulation function, and this isolation pressure regulator not only can avoid surge to affect public electric wire net, and applied widely.
The utility model is achieved through the following technical solutions.A kind of isolation pressure regulator is characterized in that, comprises the isolation voltage transformation unit, is used for preventing the interference source signal feedback to the decoupling unit of public electric wire net and regulates the pressure regulation unit of tested equipment input voltage; Public electric wire net accesses from the input end of isolation voltage transformation unit, the output terminal of isolation voltage transformation unit is electrically connected with the input end of decoupling unit, the output terminal of decoupling unit is electrically connected with the input end of pressure regulation unit, and the output terminal of pressure regulation unit is linked into tested device power supply (DPS) input end.
On the basis of tradition isolation pressure regulator basic structure, the utility model is by arranging the decoupling unit in order to consume high frequency high-energy surge in isolation pressure regulator inside, thereby need not to arrange the decoupling unit that is formed by the LC loop in the lightning surge generator, during work, owing to do not have the decoupling unit in the generator, namely there is not induction reactance, electric consumption voltage not, therefore, equal the voltage of tested equipment input end from the output voltage of isolation pressure regulator, the measurement result accuracy is high.In addition, also be provided with the pressure regulation unit in this isolation pressure regulator, can regulate isolation pressure regulator output voltage, thereby can satisfy the surge test requirement of the tested equipment of different input voltages.Therefore, than existing isolating transformer, the disclosed isolation pressure regulator of the utility model has the function of decoupling and pressure regulation, guarantees the accurate input of tested equipment input voltage, and is also applicable to various types of tested equipment, applied widely simultaneously.
The utility model also can further limit by following technical scheme:
As preferably, described decoupling unit is the LC loop, in the described LC loop, and the inductance of all connecting on every live wire, electric capacity in parallel in twos respectively between live wire, zero line and the ground wire.In the utility model, power circuit can be single-phase electricity or three-phase electricity, and therefore, the LC loop here can arrange according to concrete power circuit.
As preferably, described pressure regulation unit is for carrying out the device of voltage-regulation by autotransformer.
As preferably, comprise the voltage detection unit of the output voltage that detects the pressure regulation unit, voltage detection unit is carried in the output terminal of pressure regulation unit.Voltage detection unit is generally voltage table or other have the electrical measurement instrument of voltage measurement function.
As preferably, comprise controlling the input switch unit of public electric wire net access isolation voltage transformation unit, described input switch unit is arranged between isolation voltage transformation unit and the public electric wire net.
As preferably, comprise in order to the output voltage with the pressure regulation unit being linked into output switching element in the tested device power supply (DPS) input end power circuit that described output switching element is arranged between pressure regulation unit and the tested device power supply (DPS) input end.
In sum, the disclosed isolation pressure regulator of the utility model, by built-in decoupling unit and pressure regulation unit, and need not to arrange the decoupling unit in the surge generator, avoided the voltage loss of induction reactance, thereby guaranteed the accurate input of tested equipment input voltage, also applicable to the lightning surge generator of various models, applied widely simultaneously.
Description of drawings
Accompanying drawing 2 is synoptic diagram of isolation pressure regulator among the embodiment 1;
Accompanying drawing 3 is synoptic diagram of embodiment 1 isolation pressure regulator access public electric wire net;
Accompanying drawing 4 is synoptic diagram of isolation pressure regulator among the embodiment 2.
The 1-input switch unit; 2-isolating transformer unit; 3-decoupling unit; 4-pressure regulation unit; The 5-voltage detection unit; The 6-output switching element.
Embodiment
As shown in Figure 2, present embodiment discloses a kind of isolation pressure regulator, comprises input switch unit 1, isolation voltage transformation unit 2, decoupling unit 3, pressure regulation unit 4, voltage detection unit 5 and output switching element 6.
As shown in Figure 3, public electric wire net accesses from input switch unit 1, and the input end of isolation voltage transformation unit 2 is electrically connected with input switch unit 1; The output terminal of isolation voltage transformation unit 2 is electrically connected with the input end of decoupling unit 3, the output terminal of decoupling unit 3 is electrically connected with the input end of pressure regulation unit 4, the output terminal of pressure regulation unit 4 is connected with output switching element 6, and output switching element 6 is linked into tested device power supply (DPS) input end again.Input switch unit 1, isolation voltage transformation unit 2, pressure regulation unit 4, voltage detection unit 5 and output switching element 6 all are arranged between live wire and zero line.
In the present embodiment, power supply is single-phase electricity, comprises two inductance, three electric capacity in the decoupling unit 3; Two inductance are connected on respectively on live wire L and the zero line N, three electric capacity are connected in parallel on respectively among live wire L, zero line N and the ground wire PE, to guarantee when lightning surge generator sends lightning surge, no matter which two port surge is carried between, all form a LC decoupling loop, consume high frequency high-energy surge, avoid affecting public electric wire net.For example, when lightning surge is carried between L ' and the N ', L
LAnd C
L-NForm the LC loop; When lightning surge is carried between L ' and the PE ', L
LAnd C
L-PEForm the LC loop; When lightning surge is carried between N ' and the PE ', L
NAnd C
N-PEForm the LC loop.
During actual the use, the isolation pressure regulator is arranged on the circuit between public electric wire net and the EUT, and lightning surge generator is carried between isolation pressure regulator and the EUT, need not to arrange the decoupling unit that is comprised of the LC loop in the lightning surge generator here.During work, owing to do not have decoupling unit 2 in the generator, namely there is not induction reactance, electric consumption voltage not, thus the output voltage of isolation pressure regulator equals the voltage of tested equipment input end.Utilize this principle to disconnect output switching element 6, regulate the pressure regulation unit, until voltage detection unit detects the operational voltage value that the output voltage of isolation pressure regulator equals tested equipment; Closed output switching element 6 is connected lightning surge generator.
As shown in Figure 4, as different from Example 1, power circuit in the present embodiment is three-phase electricity, isolation voltage transformation unit 2 is comprised of the elementary cell of three single-phase isolating transformers, pressure regulation unit 4 is comprised of three single-phase autotransformers, voltage detection unit 5 comprises three voltage tables, and input switch unit 1 and output switching element 6 comprise respectively 4 switches.Input switch unit 1, isolation voltage transformation unit 2, pressure regulation unit 4, voltage detection unit 5 and output switching element 6 are separately positioned on L
1, L
2, L
3And between the N.
Claims (7)
1. an isolation pressure regulator is characterized in that, comprises isolation voltage transformation unit (2), is used for preventing that the interference source signal feedback is to the pressure regulation unit (4) of the decoupling unit (3) of public electric wire net and the tested equipment input voltage of adjusting; Power circuit accesses from the input end of isolation voltage transformation unit (2), the output terminal of isolation voltage transformation unit (2) is electrically connected with the input end of decoupling unit (3), the output terminal of decoupling unit (3) is electrically connected with the input end of pressure regulation unit (4), and the output terminal of pressure regulation unit (4) is linked into tested device power supply (DPS) input end.
2. a kind of isolation pressure regulator as claimed in claim 1 is characterized in that, described decoupling unit (3) is the LC loop, and in the described LC loop, the inductance of all connecting on every live wire is distinguished in twos electric capacity in parallel between live wire, zero line and the ground wire.
3. a kind of isolation pressure regulator as claimed in claim 1 is characterized in that, described pressure regulation unit (4) is for carrying out the device of voltage-regulation by autotransformer.
4. a kind of isolation pressure regulator as claimed in claim 1 is characterized in that, comprises the voltage detection unit (5) of the output voltage that detects pressure regulation unit (4), and voltage detection unit (5) is carried in the output terminal of pressure regulation unit (4).
5. such as claim 1 or 3 described a kind of isolation pressure regulators, it is characterized in that, comprise controlling the input switch unit (1) of public electric wire net access isolation voltage transformation unit (2), described input switch unit (1) is arranged between isolation voltage transformation unit (2) and the public electric wire net.
6. such as claim 1 or 3 described a kind of isolation pressure regulators, it is characterized in that, comprise the output switching element (6) that is linked into tested device power supply (DPS) input end in order to the output voltage with pressure regulation unit (4), described output switching element (6) is arranged between pressure regulation unit (4) and the tested device power supply (DPS) input end.
7. a kind of isolation pressure regulator as claimed in claim 1 is characterized in that, described power circuit is single-phase electricity or three-phase electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527255 CN202837355U (en) | 2012-10-16 | 2012-10-16 | Isolation voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527255 CN202837355U (en) | 2012-10-16 | 2012-10-16 | Isolation voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837355U true CN202837355U (en) | 2013-03-27 |
Family
ID=47949034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527255 Expired - Lifetime CN202837355U (en) | 2012-10-16 | 2012-10-16 | Isolation voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471481A (en) * | 2019-09-16 | 2019-11-19 | 南京中感微电子有限公司 | A kind of high-precision pressure regulator |
-
2012
- 2012-10-16 CN CN 201220527255 patent/CN202837355U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471481A (en) * | 2019-09-16 | 2019-11-19 | 南京中感微电子有限公司 | A kind of high-precision pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |