CN201196666Y - Power supply polarity discriminator - Google Patents
Power supply polarity discriminator Download PDFInfo
- Publication number
- CN201196666Y CN201196666Y CN 200820019930 CN200820019930U CN201196666Y CN 201196666 Y CN201196666 Y CN 201196666Y CN 200820019930 CN200820019930 CN 200820019930 CN 200820019930 U CN200820019930 U CN 200820019930U CN 201196666 Y CN201196666 Y CN 201196666Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- emitting diode
- polarity
- light
- polarity discriminator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a polarity discriminator for a power supply, which belongs to an electric testing apparatus, in particular to an instrument for discriminating the polarity of the power supply. The polarity discriminator for the power supply is characterized in that a resistor is connected in series with a light-emitting diode; and the end close to an anode of the light-emitting diode is connected with an anode socket and an anode test prod and the end close to a cathode of the light-emitting diode is connected with a cathode socket and a cathode test prod. The polarity discriminator for the power supply has the advantages that the variety and the polarity of the power supply can be conveniently determined by utilization of the characteristic of unilateral conduction of the light-emitting diode, and the polarity discriminator for the power supply has a simple structure and low cost, and is suitable to be used for teaching in middle and primary schools or used in households.
Description
Technical field
The utility model belongs to the electrical testing instrument, particularly is used for differentiating the instrument of electric power polarity.
Background technology
Usually meet some power supply in the daily life, do not know direct current or alternating-current power supply, the both positive and negative polarity of power supply is represented unclear, in order to prevent that electrical equipment from damaging kind and the both positive and negative polarity thereof that need distinguish power supply, instruments such as general use multimeter are tested, but higher general families are not standby at interval for these instruments.
The utility model content
In order to overcome the high complicated deficiency of existing testing tool valency, the utility model provides a kind of electric power polarity arbiter, and this electric power polarity arbiter is simple and practical.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of electric power polarity arbiter, it is characterized in that: being connected to join by resistance and light emitting diode is being connected positive pole socket and anodal prod near the anodal end of light emitting diode, is connecting anode socket and negative pole prod near negative pole one end.
The utility model utilizes the characteristic of the unidirectional conducting of light emitting diode, contact two poles respectively with two prods, at reverse contact the two poles of the earth, be AC power as all luminous then this power supply of twice contact, luminous as forward, oppositely not luminous then anodal prod electrodes in contact be a positive pole.
The beneficial effects of the utility model are to utilize the characteristic of the unidirectional conducting of light emitting diode can determine the kind and the polarity of power supply easily, and are simple in structure cheap, are suitable for middle and primary schools' teaching or family and use.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model,
Among the figure, 1. resistance, 2. light emitting diode, 3. anode socket, 4. negative pole prod, 5. positive pole socket, 6. anodal prod.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Embodiment 1, and a kind of electric power polarity arbiter is characterized in that: being connected in series by resistance 1 and light emitting diode 2 is being connected positive pole socket 5 and anodal prod 6 near the anodal end of light emitting diode, is connecting anode socket 3 and negative pole prod 4 near negative pole one end.
Claims (1)
1. electric power polarity arbiter is characterized in that: being joined by resistance and light emitting diode series connection is being connected positive pole socket and anodal prod near the anodal end of light emitting diode, is connecting anode socket and negative pole prod near negative pole one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820019930 CN201196666Y (en) | 2008-04-03 | 2008-04-03 | Power supply polarity discriminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820019930 CN201196666Y (en) | 2008-04-03 | 2008-04-03 | Power supply polarity discriminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196666Y true CN201196666Y (en) | 2009-02-18 |
Family
ID=40416301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820019930 Expired - Fee Related CN201196666Y (en) | 2008-04-03 | 2008-04-03 | Power supply polarity discriminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196666Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193049A (en) * | 2011-06-23 | 2011-09-21 | 北京七星华创弗朗特电子有限公司 | Alarm circuit for reversed polarity of photovoltaic inverter |
| US10097108B2 (en) | 2014-12-16 | 2018-10-09 | Abb Schweiz Ag | Energy panel arrangement power dissipation |
| CN108680821A (en) * | 2018-05-28 | 2018-10-19 | 天津市捷威动力工业有限公司 | A kind of novel tooling circuit applied to BMS detections |
| US10348094B2 (en) | 2015-01-28 | 2019-07-09 | Abb Schweiz Ag | Energy panel arrangement shutdown |
| US10404060B2 (en) | 2015-02-22 | 2019-09-03 | Abb Schweiz Ag | Photovoltaic string reverse polarity detection |
-
2008
- 2008-04-03 CN CN 200820019930 patent/CN201196666Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193049A (en) * | 2011-06-23 | 2011-09-21 | 北京七星华创弗朗特电子有限公司 | Alarm circuit for reversed polarity of photovoltaic inverter |
| CN102193049B (en) * | 2011-06-23 | 2014-04-09 | 北京七星华创弗朗特电子有限公司 | Alarm circuit for reversed polarity of photovoltaic inverter |
| US10097108B2 (en) | 2014-12-16 | 2018-10-09 | Abb Schweiz Ag | Energy panel arrangement power dissipation |
| US10348094B2 (en) | 2015-01-28 | 2019-07-09 | Abb Schweiz Ag | Energy panel arrangement shutdown |
| US10404060B2 (en) | 2015-02-22 | 2019-09-03 | Abb Schweiz Ag | Photovoltaic string reverse polarity detection |
| CN108680821A (en) * | 2018-05-28 | 2018-10-19 | 天津市捷威动力工业有限公司 | A kind of novel tooling circuit applied to BMS detections |
| CN108680821B (en) * | 2018-05-28 | 2020-12-08 | 天津市捷威动力工业有限公司 | Be applied to novel frock circuit that BMS detected |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 |