CN206960542U - A kind of power supply ripple voltage check device - Google Patents
A kind of power supply ripple voltage check device Download PDFInfo
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- CN206960542U CN206960542U CN201720780666.2U CN201720780666U CN206960542U CN 206960542 U CN206960542 U CN 206960542U CN 201720780666 U CN201720780666 U CN 201720780666U CN 206960542 U CN206960542 U CN 206960542U
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- probe
- electric capacity
- power supply
- negative pole
- positive
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Abstract
A kind of power supply ripple voltage check device, including the oscillograph (1) with oscilloprobe are the utility model is related to, the oscilloprobe includes probe negative pole (2) and probe positive probe (3)；It is characterized in that：Also include filter circuit, the filter circuit includes first resistor (R1), second resistance (R2), first electric capacity (C1) and the second electric capacity (C2), wherein the positive pole of the first end of first resistor (R1) and power supply connects, second end of first resistor (R1) is connected with probe positive probe (3), the first end of second resistance (R2), the positive pole of first electric capacity (C1) and the positive pole of the second electric capacity (C2) are connected with probe positive probe (3), second end of second resistance (R2), the negative pole of the negative pole of first electric capacity (C1) and the negative pole of the second electric capacity (C2) with probe negative pole (2) and power supply is connected.Compared with prior art, the utility model is by setting filter circuit, it will not be necessary to which the interference signal filters out, and ensures the uniformity of test.
Description
Technical field
It the utility model is related to a kind of power supply ripple voltage check device.
Background technology
The ripple voltage of power supply is an important indicator for influenceing power quality, there is very big influence to power quality.
In the prior art, the ripple test of power supply, the detection probe of oscillograph is directly connected with power supply, this test mode environment is done
Disturb it is very big, measurement it is repeated poor.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned prior art to provide a kind of energy retest, resist and do
Disturb the strong power supply ripple voltage check device of ability.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of power supply ripple voltage detecting dress
Put, including the oscillograph with oscilloprobe, the oscilloprobe include probe negative pole and probe positive probe；Its feature
It is：Also including filter circuit, the filter circuit includes first resistor, second resistance, the first electric capacity and the second electric capacity, wherein the
The first end of one resistance and the positive pole of power supply are connected, and the second end of first resistor is connected with probe positive probe, the negative pole of power supply
It is connected with probe negative pole, the positive pole of the first end of second resistance, the positive pole of the first electric capacity and the second electric capacity is visited with probe positive pole
Pin is connected, and the negative pole at the second end of second resistance, the negative pole of the first electric capacity and the second electric capacity is connected with probe negative pole.
As an improvement, the utility model also includes metallic shield, the filter circuit is integrally provided in metallic shield
It is interior, and metallic shield is grounded.
Compared with prior art, the utility model has the advantage of：By setting filter circuit, it will not be necessary to the interference letter
Number filter out, ensure the uniformity of test；In addition, in improvement project, increase metallic shield, can further reduce interference.This
The power supply ripple voltage check device that utility model provides, it is applicable the ripple voltage test of various power supply occasions.
Brief description of the drawings
Fig. 1 is power supply ripple voltage check device schematic diagram in the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
A kind of power supply ripple voltage check device as shown in Figure 1, including the oscillograph 1 with oscilloprobe, it is described to show
Ripple device probe includes pop one's head in negative pole 2 and positive probe 3 of popping one's head in, in addition to filter circuit, the filter circuit including first resistor R1,
Second resistance R2, the first electric capacity C1 and the second electric capacity C2, the wherein positive pole of first resistor R1 first end and power supply are connected, and first
Resistance R1 the second end is connected with probe positive probe 3, and the negative pole of power supply is connected with probe negative pole 2, and the first of second resistance R2
The positive pole at end, the first electric capacity C1 positive pole and the second electric capacity C2 is connected with probe positive probe 3, and the second of second resistance R2
The negative pole at end, the first electric capacity C1 negative pole and the second electric capacity C2 is connected with probe negative pole 2；Foregoing filter circuit is integrally provided in
In metallic shield 4, and metallic shield 4 is grounded.
Claims (2)
1. a kind of power supply ripple voltage check device, including the oscillograph (1) with oscilloprobe, the oscilloprobe bag
Include probe negative pole (2) and probe positive probe (3)；It is characterized in that：Also include filter circuit, the filter circuit includes the first electricity
Hinder the first end and power supply of (R1), second resistance (R2), the first electric capacity (C1) and the second electric capacity (C2), wherein first resistor (R1)
Positive pole connection, the second end of first resistor (R1) be connected with probe positive probe (3), the negative pole of power supply and negative pole (2) of popping one's head in
Connection, the positive pole of the first end of second resistance (R2), the positive pole of the first electric capacity (C1) and the second electric capacity (C2) with positive pole of popping one's head in
Probe (3) connects, the negative pole at the second end of second resistance (R2), the negative pole of the first electric capacity (C1) and the second electric capacity (C2) with spy
Head negative pole (2) connection.
2. power supply ripple voltage check device according to claim 1, it is characterised in that：Also include metallic shield (4),
The filter circuit is integrally provided in metallic shield (4), and metallic shield (4) is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780666.2U CN206960542U (en) | 2017-06-30 | 2017-06-30 | A kind of power supply ripple voltage check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780666.2U CN206960542U (en) | 2017-06-30 | 2017-06-30 | A kind of power supply ripple voltage check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206960542U true CN206960542U (en) | 2018-02-02 |
Family
ID=61385583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720780666.2U Active CN206960542U (en) | 2017-06-30 | 2017-06-30 | A kind of power supply ripple voltage check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206960542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008174A (en) * | 2017-06-30 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of power supply ripple voltage check device |
| CN111965441A (en) * | 2020-08-24 | 2020-11-20 | 安徽南瑞中天电力电子有限公司 | Shielding fixed probe device based on ripple test of electric energy meter and test method |
-
2017
- 2017-06-30 CN CN201720780666.2U patent/CN206960542U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008174A (en) * | 2017-06-30 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of power supply ripple voltage check device |
| CN111965441A (en) * | 2020-08-24 | 2020-11-20 | 安徽南瑞中天电力电子有限公司 | Shielding fixed probe device based on ripple test of electric energy meter and test method |
| CN111965441B (en) * | 2020-08-24 | 2021-07-30 | 安徽南瑞中天电力电子有限公司 | Shielding fixed probe device based on ripple test of electric energy meter and test method |
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