CN102570860A - DC (direct current) high-voltage output circuit and high-voltage testing device - Google Patents
DC (direct current) high-voltage output circuit and high-voltage testing device Download PDFInfo
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- CN102570860A CN102570860A CN2010106207534A CN201010620753A CN102570860A CN 102570860 A CN102570860 A CN 102570860A CN 2010106207534 A CN2010106207534 A CN 2010106207534A CN 201010620753 A CN201010620753 A CN 201010620753A CN 102570860 A CN102570860 A CN 102570860A
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Abstract
The invention relates to a DC (direct current) high-voltage output circuit and a high-voltage testing device. The DC high-voltage output circuit comprises an AC (alternating current) input end, a DC output end and an AC-DC conversion module, wherein the AC-DC conversion module comprises a diode D2, a diode D1, a first energy storage unit, a second energy storage unit, a first discharge unit and a second discharge unit; the positive pole of the diode D2 is connected with the AC input end, the negative pole of the diode D2 is respectively connected with the first energy storage unit and the first discharge unit, the first energy storage unit and the first discharge unit are respectively connected with the AC input end, the negative pole of the diode D1 is connected with the AC input end, the positive pole of the diode D1 is respectively connected with the second energy storage unit and the second discharge unit, the second energy storage unit and the second discharge unit are respectively connected with the AC input end; and two ends of the AC output end are respectively connected with the first energy storage unit and the second energy storage unit. According to the DC high-voltage output circuit and the high-voltage testing device AC can be converted into high-voltage DC, the device is simple, the test is convenient, and the cost is low.
Description
Technical field
The present invention relates to circuit control field, more particularly, relate to a kind of high direct voltage output circuit.
Background technology
Light fixture (particularly mining light fixture) often will bear the operating voltage that is higher than several times of normal working voltages when using; If light fixture can't bear the safety that the variation of this voltage will injure the light fixture user, so light fixture dispatches from the factory and all can carry out the test of HVDC tolerance as last.But the test light fixture will tolerate the above direct voltage of direct current 300V, will buy special high direct voltage tester, costs an arm and a leg, and volume is big, and carrying is inconvenient.
Summary of the invention
The technical problem that the present invention will solve is; The defective that Hi-pot test device to prior art costs an arm and a leg, volume is big, carrying is inconvenient provides a kind of and can alternating voltage be converted into direct voltage more than 2.5 times, simple in structure, convenient test, high direct voltage output circuit and Hi-pot test device that cost is low.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of high direct voltage output circuit; Comprising ac input end, dc output end and AC-DC modular converter; Said AC-DC modular converter comprises diode D2, diode D1, first energy-storage units, second energy-storage units, first discharge cell and second discharge cell; The positive pole of said diode D2 is connected with first end of said ac input end; The negative pole of said diode D2 is connected with first end of said first energy-storage units and first end of said first discharge cell respectively, and second end of said first energy-storage units is connected with second end of said ac input end respectively with second end of said first discharge cell; The negative pole of said diode D1 is connected with first end of said ac input end; The positive pole of said diode D1 is connected with first end of said second energy-storage units and first end of said second discharge cell respectively, and second end of said second energy-storage units is connected with second end of said ac input end respectively with second end of said second discharge cell; The positive pole of said dc output end is connected with first end of said first energy-storage units, and the negative pole of said dc output end is connected with first end of said second energy-storage units.
In high direct voltage output circuit of the present invention; Said AC-DC modular converter also comprises and is used to suppress that said ac input end disturbs removes interference capacitors C1; The said end of interference capacitors C1 and first end of said ac input end of going, the said other end of interference capacitors C1 that goes is connected with second end of said ac input end.
In high direct voltage output circuit of the present invention, said first energy-storage units comprises the first storage capacitor subelement, and said second energy-storage units comprises the second storage capacitor subelement.
In high direct voltage output circuit of the present invention, the said first storage capacitor subelement comprises at least two storage capacitors of series connection successively, and the said second storage capacitor subelement comprises at least two storage capacitors of series connection successively.
In high direct voltage output circuit of the present invention, said first discharge cell comprises the first discharge resistance subelement, and said second discharge cell comprises the second discharge resistance subelement.
In high direct voltage output circuit of the present invention, the said first discharge resistance subelement comprises at least two discharge resistances of series connection successively, and the said second discharge resistance subelement comprises at least two discharge resistances of series connection successively.
The invention still further relates to a kind of Hi-pot test device, adopt above-mentioned high direct voltage output circuit to carry out the high pressure tolerance test of light fixture.
The high direct voltage output circuit of embodiment of the present invention and Hi-pot test device; Has following beneficial effect: can alternating voltage effectively be converted into the direct voltage more than 2.5 times; Device is simple, convenient test, cost are low, can avoid the defective that existing Hi-pot test device costs an arm and a leg, volume big, carrying is inconvenient.
Employing goes interference capacitors can effectively suppress the interference signal in the ac input end.Adopt electric capacity can better carry out energy storage.The voltage endurance capability that can strengthen electric capacity through a plurality of capacitances in series energy storage reduces the purchase cost of electric capacity simultaneously.Adopt resistance to carry out capacitance discharges, prevent that the surplus electricity of storing on the storage capacitor from causing injury to the people.Safer the carrying out of discharge of adopting a plurality of resistance discharged in series to guarantee.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the circuit diagram of first preferred embodiment of high direct voltage output circuit of the present invention;
Fig. 2 is the circuit diagram of second preferred embodiment of high direct voltage output circuit of the present invention.
Embodiment
In order to make the object of the invention, principle and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the physical circuit figure of first preferred embodiment of high direct voltage output circuit of the present invention shown in Figure 1; Said high direct voltage output circuit comprises ac input end, dc output end and AC-DC modular converter; The AC-DC modular converter comprises diode D2, diode D1, first energy-storage units 1, second energy-storage units 2, first discharge cell 3 and second discharge cell 4; The positive pole of diode D2 is connected with first end of ac input end; The negative pole of diode D2 is connected with first end of first energy-storage units 1 and first end of first discharge cell 3 respectively, and second end of second end of first energy-storage units 1 and first discharge cell 3 is connected with second end of ac input end respectively; The negative pole of diode D1 is connected with first end of ac input end; The positive pole of diode D1 is connected with first end of second energy-storage units 2 and first end of second discharge cell 4 respectively, and second end of second end of second energy-storage units 2 and second discharge cell 4 is connected with second end of ac input end respectively; The positive pole of dc output end is connected with first end of first energy-storage units 1, and the negative pole of dc output end is connected with first end of second energy-storage units 2.Adopt high direct voltage output circuit of the present invention; Alternating current is through the ac input end input, and when alternating current was its positive half period, electric current flowed into from first end of ac input end; Second end of ac input end flows out; At this moment diode D2 conducting, diode D1 ends, and first energy-storage units 1 carries out energy storage; When alternating current was its negative half-cycle, electric current flowed into from second end of ac input end, and first end of ac input end flows out, and at this moment diode D2 ends, diode D1 conducting, and second energy-storage units 2 carries out energy storage; The both positive and negative polarity of dc output end connects first end of first energy-storage units 1 and first end of second energy-storage units 2 respectively; Second end of second end of first energy-storage units 1 and second energy-storage units 2 interconnects; The effective value of voltage like the alternating current of input is 220V; Then the voltage output value of dc output end is the voltage sum of the voltage and second energy-storage units 2 of first energy-storage units 1, i.e. (220*2) * 1.41=620.4V, the circuit loss of removing the high direct voltage output circuit; VD can reach more than the 550V, has realized alternating current is converted into the direct current more than 2.5 times.When dc output end stopped output DC, first energy-storage units 1 carried out discharge process through the surplus electricity of 3 pairs of storages of first discharge cell, and second energy-storage units 2 is put a processing through the surplus electricity of 4 pairs of storages of second discharge cell, guaranteed user's safety.The unidirectional on state characteristic of high direct voltage output circuit of the present invention through diode D2 and diode D1 alternating current change into direct current and through first energy-storage units 1 and second energy-storage units 2 the voltage filter of the positive and negative semiaxis of alternating current with stack up; Making filtered voltage is 2.5 times of input ac voltage; This circuit design is simple, convenient test, cost are low, can effectively avoid the defective that existing Hi-pot test device costs an arm and a leg, volume big, carrying is inconvenient.
In the physical circuit figure of first preferred embodiment of high direct voltage output circuit of the present invention shown in Figure 1; Said AC-DC modular converter also comprises interference capacitors C1; Going interference capacitors C1 to be used to suppress ac input end disturbs; Go the end of interference capacitors C1 to be connected, go the other end of interference capacitors C1 to be connected with second end of ac input end with first end of ac input end.Employing goes interference capacitors C1 can effectively suppress the interference signal in the ac input end.
In the physical circuit figure of second preferred embodiment of high direct voltage output circuit of the present invention shown in Figure 2; First energy-storage units 1 comprises the first storage capacitor subelement; Second energy-storage units 2 comprises the second storage capacitor subelement; The first storage capacitor subelement comprises at least two storage capacitors of series connection successively, and the second storage capacitor subelement comprises at least two storage capacitors of series connection successively.As shown in Figure 3; Storage capacitor C2 and storage capacitor C3 are followed in series to form the first storage capacitor subelement; Storage capacitor C4 and storage capacitor C5 are followed in series to form the second storage capacitor subelement, and this high direct voltage output circuit adopts electric capacity can better carry out energy storage as energy storage device.Realize that through a plurality of capacitances in series energy storage can strengthen the voltage endurance capability of electric capacity, prevent that electric capacity is breakdown, adopt the low capacitances in series of breakdown voltage value to prevent that electric capacity from can effectively reduce the purchase cost of electric capacity when puncturing.
In the physical circuit of the preferred embodiment of high direct voltage output circuit of the present invention; First discharge cell 3 comprises the first discharge resistance subelement; Second discharge cell 4 comprises the second discharge resistance subelement; The first discharge resistance subelement comprises at least two discharge resistances of series connection successively, and the second discharge resistance subelement comprises at least two discharge resistances of series connection successively.As shown in Figure 3; Discharge resistance R1, discharge resistance R3 and discharge resistance R6 are followed in series to form the first discharge resistance subelement; Discharge resistance R6, discharge resistance R4, discharge resistance R2 are followed in series to form the second discharge resistance subelement; This high direct voltage output circuit adopts resistance that storage capacitor is discharged, and it is safer to discharge, and can prevent effectively that the surplus electricity of storing on the storage capacitor from causing injury to the people.Adopt a plurality of resistance discharged in series to guarantee the carrying out that discharge is safer, can not cause the generation of unsafe factors such as heavy-current discharge because of the problems such as puncture of some resistance.
The present invention also constructs a kind of Hi-pot test device, and said Hi-pot test device adopts above-mentioned high direct voltage output circuit to carry out the high pressure tolerance test of light fixture.Embodiment and beneficial effect are referring to the specific embodiment of above-mentioned high direct voltage output circuit.Hi-pot test device simplicity of design of the present invention, convenient test, cost are low, can effectively avoid the defective that existing Hi-pot test device costs an arm and a leg, volume big, carrying is inconvenient.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to be done, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (7)
1. high direct voltage output circuit; It is characterized in that; Comprise ac input end, dc output end and AC-DC modular converter; Said AC-DC modular converter comprises diode D2, diode D1, first energy-storage units (1), second energy-storage units (2), first discharge cell (3) and second discharge cell (4); The positive pole of said diode D2 is connected with first end of said ac input end; The negative pole of said diode D2 is connected with first end of said first energy-storage units (1) and first end of said first discharge cell (3) respectively, and second end of second end of said first energy-storage units (1) and said first discharge cell (3) is connected with second end of said ac input end respectively; The negative pole of said diode D1 is connected with first end of said ac input end; The positive pole of said diode D1 is connected with first end of said second energy-storage units (2) and first end of said second discharge cell (4) respectively, and second end of second end of said second energy-storage units (2) and said second discharge cell (4) is connected with second end of said ac input end respectively; The positive pole of said dc output end is connected with first end of said first energy-storage units (1), and the negative pole of said dc output end is connected with first end of said second energy-storage units (2).
2. high direct voltage output circuit according to claim 1; It is characterized in that; Said AC-DC modular converter also comprises and is used to suppress that said ac input end disturbs removes interference capacitors C1; The said end of interference capacitors C1 and first end of said ac input end of going, the said other end of interference capacitors C1 that goes is connected with second end of said ac input end.
3. high direct voltage output circuit according to claim 1 and 2 is characterized in that, said first energy-storage units (1) comprises the first storage capacitor subelement, and said second energy-storage units (2) comprises the second storage capacitor subelement.
4. high direct voltage output circuit according to claim 3 is characterized in that, the said first storage capacitor subelement comprises at least two storage capacitors of series connection successively, and the said second storage capacitor subelement comprises at least two storage capacitors of series connection successively.
5. high direct voltage output circuit according to claim 1 and 2 is characterized in that, said first discharge cell (3) comprises the first discharge resistance subelement, and said second discharge cell (4) comprises the second discharge resistance subelement.
6. high direct voltage output circuit according to claim 5 is characterized in that, the said first discharge resistance subelement comprises at least two discharge resistances of series connection successively, and the said second discharge resistance subelement comprises at least two discharge resistances of series connection successively.
7. a Hi-pot test device is characterized in that, said Hi-pot test device comprises like arbitrary described high direct voltage output circuit in the claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106207534A CN102570860A (en) | 2010-12-31 | 2010-12-31 | DC (direct current) high-voltage output circuit and high-voltage testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106207534A CN102570860A (en) | 2010-12-31 | 2010-12-31 | DC (direct current) high-voltage output circuit and high-voltage testing device |
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| CN102570860A true CN102570860A (en) | 2012-07-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229119Y (en) * | 1994-04-05 | 1996-06-12 | 大连电源技术有限公司 | Portable DC high voltage generator |
| CN101252802A (en) * | 2007-02-25 | 2008-08-27 | 电灯专利信托有限公司 | Charge pump electric ballast for low input voltage |
| CN101298109A (en) * | 2008-04-11 | 2008-11-05 | 孔星 | Striking device suitable for welding and cutting equipment |
| CN101825649A (en) * | 2009-11-16 | 2010-09-08 | 中国南方电网有限责任公司超高压输电公司 | Superpower remote control electric discharge device |
| CN201626950U (en) * | 2010-02-10 | 2010-11-10 | 周永才 | Equipment for preparing biodiesel by ultra-high voltage pulse electric-field microalgae wall-breaking method |
-
2010
- 2010-12-31 CN CN2010106207534A patent/CN102570860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2229119Y (en) * | 1994-04-05 | 1996-06-12 | 大连电源技术有限公司 | Portable DC high voltage generator |
| CN101252802A (en) * | 2007-02-25 | 2008-08-27 | 电灯专利信托有限公司 | Charge pump electric ballast for low input voltage |
| CN101298109A (en) * | 2008-04-11 | 2008-11-05 | 孔星 | Striking device suitable for welding and cutting equipment |
| CN101825649A (en) * | 2009-11-16 | 2010-09-08 | 中国南方电网有限责任公司超高压输电公司 | Superpower remote control electric discharge device |
| CN201626950U (en) * | 2010-02-10 | 2010-11-10 | 周永才 | Equipment for preparing biodiesel by ultra-high voltage pulse electric-field microalgae wall-breaking method |
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Application publication date: 20120711 |