CN203466737U - Safe low-voltage AC/DC power supply input pen - Google Patents
Safe low-voltage AC/DC power supply input pen Download PDFInfo
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- CN203466737U CN203466737U CN201320455420.XU CN201320455420U CN203466737U CN 203466737 U CN203466737 U CN 203466737U CN 201320455420 U CN201320455420 U CN 201320455420U CN 203466737 U CN203466737 U CN 203466737U
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- rectifier bridge
- input pen
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- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses a safe low-voltage AC/DC power supply input pen, which comprises a transformer, a rectifier and an option switch. One side edge of the low-voltage end of the transformer is respectively connected with one input pin of a rectifier bridge and one output port of an alternating-current voltage, the other side edge of the low-voltage end of the transformer is respectively connected with one input pin of the rectifier bridge and the other output port of the alternating-current voltage through the option switch, the two output pins of the rectifier bridge are connected with an output positive port and an output negative port of a direct-current voltage respectively, and test meter pens are arranged on the two output ports of the alternating-current voltage and/or the output positive port and the output negative port of the direct-current voltage. According to the safe low-voltage AC/DC power supply input pen, gears of an output voltage can be switched over, great convenience is brought to adjustment and use, and the low-voltage alternating-current and direct-current power source output device further has the automatic protection and output display functions, and is simple, practical, easy and convenient to operate, and high in working efficiency.
Description
technical field:
The utility model relates to a kind of alterating and direct current source apparatus, particularly relates to a kind of safe, reliable low-voltage AC/DC power supply input pen.
background technology:
At present, when some power equipment of maintenance, need to be to input voltage between certain two point of power equipment, and sometimes need to input different voltage, conventional way is: use a transformer, different magnitudes of voltage are provided as required, the method complex operation, inefficiency.
utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of simple and practical, can output AC voltage and the safety low-pressure power of alterating and direct current input pen of direct voltage.
The technical solution of the utility model is: a kind of safety low-pressure power of alterating and direct current input pen, contain transformer, rectifier and selector switch, low-pressure end one side of transformer is connected with input pin of rectifier bridge and an output port of alternating voltage respectively, another side of the low-pressure end of transformer is connected with input pin of rectifier bridge and another output port of alternating voltage respectively by selector switch, and two output pins of rectifier bridge connect respectively the positive and negative port of direct voltage output; The positive and negative port of output of two output ports of described alternating voltage and/or described direct voltage is provided with test test pencil.
Between described change over switch and rectifier bridge, be connected to adjustable resistance.Between described rectifier bridge and DC voltage output end mouth, be connected with fuse.Between described step-down side one side and ac voltage output mouth, be connected with fuse.
Between described direct voltage both positive and negative polarity output port, be connected with polar capacitor and D.C. voltmeter.Described polar capacitor and A.C. voltmeter are parallel joins.Between described alternating voltage both positive and negative polarity output port, be connected with A.C. voltmeter.
The beneficial effects of the utility model are:
1, the utility model output voltage gear is changeable, uses very conveniently, and in addition, output voltage values can be finely tuned, and guarantees the accuracy of output voltage.
2, the utlity model has automatic protection functions, when this new-type circuit goes wrong, fuse fuses automatically, can protect by lateral circuit and testing staff's safety.
3, the utlity model has output voltage Presentation Function, guarantee that testing staff can know the output voltage of this utility model fast and accurately.
4, the utility model is simple and practical, can output AC voltage and direct voltage, and it is applied widely, is easy to promotion and implementation, has good economic benefit.
accompanying drawing explanation:
Fig. 1 is the circuit theory diagrams of safety low-pressure power of alterating and direct current input pen.
embodiment:
Embodiment: referring to Fig. 1, in figure, 1-fuse, 2-transformer, 3-change over switch, 4-adjustable resistance, 5-rectifier bridge, 6-polar capacitor, 7-D.C. voltmeter, 8-tests test pencil, 9-A.C. voltmeter.
In Fig. 1, transformer 2 is for having the transformer of multivoltage output, 220V voltage can be become to 1V, 2V, 3V, 4.5V, 6V, 9V, 12V, 15V, 18V, 24V, 36V and 48V, low-voltage AC one tunnel of the low-pressure end one side output of transformer 2 is input to rectifier bridge 5, another road is input to ac voltage output mouth, rectifier bridge 5 changes into direct current the alternating current of input, then output to the positive pole of DC voltage output end, change over switch 3 can be selected the magnitude of voltage of output, voltage is input to rectifier bridge 5 through the adjusting Hou Yi road of adjustable resistance 4, another road is input to ac voltage output mouth, between two ac voltage output mouths, connect alternating voltage, this A.C. voltmeter 9 can show the voltage of output, facilitate testing staff's operation, two output pins, one tunnel of rectifier bridge 5 connects the positive pole of DC voltage output end mouth, another road connects the negative pole of DC voltage output end mouth, between two DC voltage output end mouths, be connected with polar capacitor 6 and D.C. voltmeter 7, polar capacitor 6 can fall the concussion voltage filter in circuit after rectification, make output voltage more stable, D.C. voltmeter 7 can show the voltage of output, facilitate testing staff's operation.
Two output ports of alternating voltage and/or the positive and negative port of output of direct voltage are provided with test test pencil 8.Use this test test pencil 8 directly in circuit board, to test, as midget relay, diode, triode, voltage stabilizing circuit, integrated circuit etc.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a safety low-pressure power of alterating and direct current input pen, contain transformer, rectifier bridge and selector switch, it is characterized in that: low-pressure end one side of transformer is connected with input pin of rectifier bridge and an output port of alternating voltage respectively, another side of the low-pressure end of transformer is connected with input pin of rectifier bridge and another output port of alternating voltage respectively by selector switch, and two output pins of rectifier bridge connect respectively the positive and negative port of direct voltage output; The positive and negative port of output of two output ports of described alternating voltage and/or described direct voltage is provided with test test pencil.
2. safety low-pressure power of alterating and direct current input pen according to claim 1, is characterized in that: between described selector switch and rectifier bridge, be connected to adjustable resistance.
3. safety low-pressure power of alterating and direct current input pen according to claim 1, is characterized in that: between described rectifier bridge and DC voltage output end mouth, be connected with fuse.
4. safety low-pressure power of alterating and direct current input pen according to claim 1, is characterized in that: between described step-down side one side and ac voltage output mouth, be connected with fuse.
5. safety low-pressure power of alterating and direct current input pen according to claim 1, is characterized in that: between described direct voltage both positive and negative polarity output port, be connected with polar capacitor and D.C. voltmeter.
6. safety low-pressure power of alterating and direct current input pen according to claim 5, is characterized in that: described polar capacitor and D.C. voltmeter are parallel joins.
7. safety low-pressure power of alterating and direct current input pen according to claim 1, is characterized in that: between described alternating voltage both positive and negative polarity output port, be connected with A.C. voltmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455420.XU CN203466737U (en) | 2013-07-29 | 2013-07-29 | Safe low-voltage AC/DC power supply input pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455420.XU CN203466737U (en) | 2013-07-29 | 2013-07-29 | Safe low-voltage AC/DC power supply input pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466737U true CN203466737U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320455420.XU Expired - Fee Related CN203466737U (en) | 2013-07-29 | 2013-07-29 | Safe low-voltage AC/DC power supply input pen |
Country Status (1)
| Country | Link |
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| CN (1) | CN203466737U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414324A (en) * | 2013-07-29 | 2013-11-27 | 国家电网公司 | Low-voltage alternating-current and direct-current power source output device |
| CN103869195A (en) * | 2014-03-31 | 2014-06-18 | 国电科学技术研究院银川电力技术分院 | Engine rotor over-voltage protection device tester |
| CN109696625A (en) * | 2019-02-27 | 2019-04-30 | 上海地铁维护保障有限公司 | Portable relay test-device and test method |
-
2013
- 2013-07-29 CN CN201320455420.XU patent/CN203466737U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414324A (en) * | 2013-07-29 | 2013-11-27 | 国家电网公司 | Low-voltage alternating-current and direct-current power source output device |
| CN103869195A (en) * | 2014-03-31 | 2014-06-18 | 国电科学技术研究院银川电力技术分院 | Engine rotor over-voltage protection device tester |
| CN103869195B (en) * | 2014-03-31 | 2017-03-22 | 国电科学技术研究院银川电力技术分院 | Engine rotor over-voltage protection device tester |
| CN109696625A (en) * | 2019-02-27 | 2019-04-30 | 上海地铁维护保障有限公司 | Portable relay test-device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20190729 |