CN203180520U - Reverse conversion circuit of bipolar power supply - Google Patents
Reverse conversion circuit of bipolar power supply Download PDFInfo
- Publication number
- CN203180520U CN203180520U CN 201320039583 CN201320039583U CN203180520U CN 203180520 U CN203180520 U CN 203180520U CN 201320039583 CN201320039583 CN 201320039583 CN 201320039583 U CN201320039583 U CN 201320039583U CN 203180520 U CN203180520 U CN 203180520U
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- fuse
- power supply
- diode
- bipolar power
- connection circuit
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Abstract
The utility model provides a revere connection circuit of a bipolar power supply. The reverse connection circuit of the bipolar power supply comprises a first fuse, a first diode, a second fuse and a second diode, wherein the first fuse is connected with the first diode in parallel, the first diode is reversely conducted, the second fuse is connected with the second diode, the second fuse is connected with the first fuse in series, the second fuse is connected with the second diode in parallel, and the second diode is reversely conducted. The reverse connection circuit of the bipolar power supply does not have voltage drop or power loss.
Description
Technical field
The utility model relates to a kind of bipolar power supply reversal connection circuit.
Background technology
Direct current refers to that the sense of current is certain, and the constant electric current of size.Electricity as dry cell, storage battery, DC generator confession all is direct current.Direct current is in supply line, and sense of current is unidirectional, and the sense of current is high potential to electronegative potential conducting (anodal electric charge through load to the power cathode conducting) all the time.Direct current has polarity, and during powering load, polarity can not connect instead.When load was duplicate supply, power supply cyclization short circuit can take place; When load was the polarity load, device damage or serious consequence more can take place; When load is pure resistive loads, for example DC heating, then can not produce damage.
The existing main method that prevents that the DC power supply reversal connection from working the mischief has 2 kinds:
1, silicon bridge; The silicon bridge that utilizes the unilateral conduction of diode to design is applied in the direct current commutation system, has to be widely used characteristics such as low price.
2, DC-isolation power supply; The DC-isolation power supply is according to direct current input, and the power rectifier system of direct current output Specialty Design has characteristics such as isolated from power, voltage stabilizing, protective circuit are complete.
But, when adopting the silicon bridge technology, because the pressure drop (1.4V) that the silicon bridge rectifier diode produces is not adapted at adopting in the solar electric power supply system, solar electric power supply system circuit power voltage adopts the 12V direct current, if the employing silicon bridge, then the direct current pressure drop of 1.4V will cause the equipment component can't operate as normal.
But, when adopting the DC-isolation power technology, because the efficiency of DC-isolation power supply itself will produce power loss.As high-power intermittent work equipment, when for example being used for the big-dipper satellite equipment of communication, the power designs of DC-isolation power supply has problems.
The utility model content
The purpose of this utility model provides a kind of bipolar power supply reversal connection circuit, no pressure drop and no power waste.
In order to solve the problems of the technologies described above, the bipolar power supply reversal connection circuit that the utility model provides is achieved in that
A kind of bipolar power supply reversal connection circuit comprises: first fuse and first diode;
Described first fuse and the first diode parallel connection; The described first diode reverse conducting.
Optionally, described bipolar power supply reversal connection circuit also comprises: second fuse and second diode; Described second fuse is connected with described first fuse, and described second fuse is in parallel with described second diode; The described second diode reverse conducting.
Optionally, described first fuse is: resettable fuse.
Optionally, described second fuse is: the Fuse Type fuse.
Optionally, described first diode and the second diode model are: IN5408.
Optionally, the model of described first fuse is: JK16-500.
The bipolar power supply reversal connection circuit that the utility model provides, first fuse and the first diode parallel connection, the first diode reverse conducting; When the equipment operate as normal, DC power supply first fuse of flowing through, no-voltage pressure drop in the whole current path, and no power waste; When the device power supply (DPS) reversal connection, equipment enters into the service area of first fuse, and first fuse causes and opens circuit or high resistance, and entire equipment enters normally.With respect to the DC power supply reversal connection technology that prevents of prior art, the utility model does not have power consumption, no pressure drop, is fit in the solar electric power supply system very much, and can not causes the loss of power supply.
Further, the bipolar power supply reversal connection circuit that the utility model provides increases by second fuse and second diode, and duplicate protection is carried out in the power supply reversal connection.
Further, the bipolar power supply reversal connection circuit that the utility model provides is during the equipment operate as normal, the DC power supply Fuse Type fuse of flowing through, through supply equipment electricity consumption behind the resettable fuse, no-voltage pressure drop in the whole current path, so entire circuit can be thought " 0 " pressure drop.Equipment connects inverse time, because the effect of 2 backward diodes, when connecing between inverse time in short-term, because it is fast from the action effective of recovery diode, directly with power supply short circuit, cause the short-circuit protection of solar charging controller output, equipment enters the service area of resettable fuse; When trouble shooting, resettable fuse is resumed work, and entire equipment enters normally.Long when connecing between inverse time, and equipment is not when having charge protector, directly with the Fuse Type blown fuse, the equipment no power, the fuse that more renews, and device power supply (DPS) connect just can recover operate as normal after correct, guarantee that damage does not appear in integral device.
Description of drawings
Fig. 1 is the bipolar power supply reversal connection circuit diagram that the utility model provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of bipolar power supply reversal connection circuit comprises: the first fuse F1 and the first diode D1;
The described first fuse F1 and the first diode D1 power interface J3 that is connected in parallel; The described first diode D1 reverse-conducting.
The second fuse F2 and the second diode D2; The described second fuse F2 connects with the described first fuse F1, and F2 connects power interface J3, and the described second fuse F2 is in parallel with the described second diode D2; The described second diode D2 reverse-conducting.D2 reverse-conducting direction ground connection.
The first fuse F1 is: resettable fuse.
The second fuse F2 is: the Fuse Type fuse.
The first diode D1 and the second diode D2 model are: IN5408.
The model of the first fuse F1 is: JK16-500.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. a bipolar power supply reversal connection circuit is characterized in that, comprising: first fuse and first diode;
Described first fuse and the first diode parallel connection; The described first diode reverse conducting.
2. bipolar power supply reversal connection circuit according to claim 1 is characterized in that, described bipolar power supply reversal connection circuit also comprises: second fuse and second diode; Described second fuse is connected with described first fuse, and described second fuse is in parallel with described second diode; The described second diode reverse conducting.
3. bipolar power supply reversal connection circuit according to claim 1 and 2 is characterized in that, described first fuse is: resettable fuse.
4. bipolar power supply reversal connection circuit according to claim 2 is characterized in that, described second fuse is: the Fuse Type fuse.
5. according to claim 2 or 4 described bipolar power supply reversal connection circuit, it is characterized in that described first diode and the second diode model are: IN5408.
6. bipolar power supply reversal connection circuit according to claim 5 is characterized in that the model of described first fuse is: JK16-500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039583 CN203180520U (en) | 2013-01-24 | 2013-01-24 | Reverse conversion circuit of bipolar power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039583 CN203180520U (en) | 2013-01-24 | 2013-01-24 | Reverse conversion circuit of bipolar power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180520U true CN203180520U (en) | 2013-09-04 |
Family
ID=49077180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039583 Expired - Fee Related CN203180520U (en) | 2013-01-24 | 2013-01-24 | Reverse conversion circuit of bipolar power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050965A (en) * | 2013-01-24 | 2013-04-17 | 河南安宏信息科技有限公司 | Reverse conversion circuit of bipolar power supply |
-
2013
- 2013-01-24 CN CN 201320039583 patent/CN203180520U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050965A (en) * | 2013-01-24 | 2013-04-17 | 河南安宏信息科技有限公司 | Reverse conversion circuit of bipolar power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160124 |
|
| EXPY | Termination of patent right or utility model |