CN205811851U - A kind of DC supply input circuit module - Google Patents
A kind of DC supply input circuit module Download PDFInfo
- Publication number
- CN205811851U CN205811851U CN201620678195.XU CN201620678195U CN205811851U CN 205811851 U CN205811851 U CN 205811851U CN 201620678195 U CN201620678195 U CN 201620678195U CN 205811851 U CN205811851 U CN 205811851U
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- CN
- China
- Prior art keywords
- brachium pontis
- diode
- commutation diode
- supply input
- negative pole
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Abstract
The utility model discloses a kind of DC supply input circuit module, use bridge circuit, one diagonal angle is as DC supply input, another diagonal angle is as DC power output end, two brachium pontis near output head anode are the first brachium pontis, two brachium pontis near negative pole of output end are the second brachium pontis, a commutation diode it is respectively connected with on each brachium pontis, commutation diode negative pole on described first brachium pontis is connected with output head anode, the negative pole of the commutation diode positive pole on described first brachium pontis and the commutation diode on the second brachium pontis connects, the positive pole of the commutation diode on described second brachium pontis is connected with negative pole of output end.The circuit module that this utility model provides achieves no matter how DC supply input both positive and negative polarity connects can ensure that output polarity is constant, and wiring is the most quick and easy.
Description
Technical field
This utility model relates to DC power supply circuit field, particularly relates to a kind of DC supply input circuit module.
Background technology
Unidirectional current is convenient as one, safe energy source, by widely be applied to aviation war products, electronics industry
Product, particularly avionics product.How to ensure direct current supply safety, it is ensured that the normal work of product occurs without damage becomes power supply
Module critical function.
Also and non-real constant constant, the situation of reality there may be overvoltage pulsation to unidirectional current so that product exists
Cross pressure work, so make to produce instability and even burn.
When product breaks down or have components and parts to puncture to produce stream, power supply should power-off immediately prevent from further damaging
Bad.
Unidirectional current is divided into positive and negative polarities, and operator are likely to connect positive negative wire the anti-product that burns, institute due to misoperation
Power Entry Module should be added anti-reverse function, it may be preferable to positive and negative all can connect, regardless of positive negative wire.
When DC suppling network is struck by lightning, this is required for power module and protects how to ensure not receive damage etc. by product
Card and realization.
Summary of the invention
For solving above-mentioned technical problem, this utility model provides a kind of DC supply input circuit module, can be regardless of just
Negative pole accesses DC source, has good anti-overflow, anti-wrong alternating current and the function of thunder-lightning.
The purpose of above-mentioned utility model is achieved through the following technical solutions:
A kind of DC supply input circuit module, uses bridge circuit, a diagonal angle as DC supply input, another
Individual diagonal angle is as DC power output end, and two brachium pontis near output head anode are the first brachium pontis, near negative pole of output end
Two brachium pontis are the second brachium pontis, and each brachium pontis is respectively connected with a commutation diode, rectification two pole on described first brachium pontis
Pipe negative pole is connected with output head anode, the commutation diode positive pole on described first brachium pontis and rectification two pole on the second brachium pontis
The negative pole of pipe connects, and the positive pole of the commutation diode on described second brachium pontis is connected with negative pole of output end.
Further, overcurrent electric fuse is accessed in input series connection.
Further, each commutation diode is all parallel with a Zener diode, bearing of described Zener diode
Pole is connected with the negative pole of commutation diode, and the positive pole of described Zener diode is connected with the positive pole of commutation diode.
Further, reverse transient voltage suppressor diode is accessed at outfan.
The beneficial effects of the utility model are: this utility model utilizes the unidirectional of commutation diode in bridge circuit
Electrically, it is achieved that no matter how both positive and negative polarity connects input can ensure that output polarity is constant, and i.e. input is regardless of both positive and negative polarity, connects
Line is the most quick and easy；All use commutation diode in parallel with Zener diode on further each bridge wall, can effectively control
The sense of current processed and magnitude of voltage size, both achieved input corresponding with the polarity of outfan, can prevent again overvoltage, effectively protect
Protect product；Connect respectively at input further and access overcurrent electric fuse, when product occurred that stream or power supply overvoltage could
Power-off protection product in time；Access reverse transient voltage suppressor diode (TVS) between outfan two ends, can effectively prevent
Stop the big energy of transient state such as thunder and lightning and enter product from power supply；Foregoing circuit simple in construction, it is easy to accomplish, with low cost.
Accompanying drawing explanation
Fig. 1 this utility model detailed description of the invention DC supply input circuit module schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings 1 and detailed description of the invention the utility model is described in further detail:
As it is shown in figure 1, a kind of novel DC supply input circuit module, including 4 commutation diodes (11,12,13,
14), 4 Zener diodes (21,22,23,24), 2 overcurrent electric fuses (41,42) and 1 transient voltage suppress two poles
Pipe (TVS) 31；External direct current power supply inputs from DC supply input circuit module input, and DC power output end is with product even
Connect.
When the left positive right side of external direct current power supply is negative, on electrode line, commutation diode 11, Zener diode 21 turn on, rectification two
Pole pipe 14, Zener diode 24 end, current direction product positive pole.In negative line, commutation diode 13, Zener diode 23 are led
Logical, commutation diode 14, Zener diode 24 end, and current reflux is to negative pole.
When the right positive left side of external direct current power supply is negative, on electrode line, commutation diode 12, Zener diode 22 turn on, rectification two
Pole pipe 13, Zener diode 23 end, current direction product positive pole.In negative line, commutation diode 14, Zener diode 24 are led
Logical, commutation diode 13, Zener diode 23 end, and current reflux is to negative pole.
As it has been described above, the most how input of the present utility model connects both positive and negative polarity can ensure that output polarity is constant, this
Sample achieves input regardless of both positive and negative polarity, and wiring is the most quick and easy.
When DC supply input overvoltage, Zener diode can produce a big electric current so that voltage is maintained at work
Voltage.At this moment the big electric current produced can make electric fuse fusing point, and product protected by disconnecting circuit.
Product connect electricity wrong when alternating current, bridge circuit can carry out rectification to alternating current thus ensure that positive-negative polarity,
When alternating current voltage is too high, Zener diode can produce a big electric current so that voltage is maintained at running voltage.Produce is big
Electric current can make electric fuse fusing point, and product protected by disconnecting circuit.
Produce big electric current, blown fuse when product work is abnormal, be effectively protected product and personal safety.
When suffering the big energy transient pulses such as thunderbolt when unidirectional current, common product is most likely to damage, and this utility model exists
Add transient voltage suppressor diode (TVS) between the outfan of module, can effectively prevent the big instantaneous arteries and veins of energy such as thunder and lightning
The punching infringement to product.
To sum up this utility model have anti-overflow, anti-overvoltage, regardless of positive-negative polarity, anti-wrong alternating current, thunder-lightning function.
Claims (4)
1. a DC supply input circuit module, it is characterised in that using bridge circuit, a diagonal angle is defeated as DC source
Entering end, another diagonal angle is as DC power output end, and two brachium pontis near output head anode are the first brachium pontis, near output
Two brachium pontis of end negative pole are the second brachium pontis, each brachium pontis are all connected with a commutation diode, whole on described first brachium pontis
Stream diode cathode is connected with output head anode, whole on commutation diode positive pole on described first brachium pontis and the second brachium pontis
The negative pole of stream diode connects, and the positive pole of the commutation diode on described second brachium pontis is connected with negative pole of output end.
DC supply input circuit module the most according to claim 1, it is characterised in that access electric current in input series connection
Overcurrent fuse.
DC supply input circuit module the most according to claim 2, it is characterised in that on each commutation diode all
Being parallel with a Zener diode, the negative pole of described Zener diode is connected with the negative pole of commutation diode, described voltage stabilizing two
The positive pole of pole pipe is connected with the positive pole of commutation diode.
DC supply input circuit module the most according to claim 1, it is characterised in that access reverse wink at outfan
State voltage suppression diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678195.XU CN205811851U (en) | 2016-06-30 | 2016-06-30 | A kind of DC supply input circuit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678195.XU CN205811851U (en) | 2016-06-30 | 2016-06-30 | A kind of DC supply input circuit module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811851U true CN205811851U (en) | 2016-12-14 |
Family
ID=57512123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678195.XU Active CN205811851U (en) | 2016-06-30 | 2016-06-30 | A kind of DC supply input circuit module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900055A (en) * | 2022-07-12 | 2022-08-12 | 深圳核心医疗科技有限公司 | Wireless charging rectification circuit and wireless charging device |
-
2016
- 2016-06-30 CN CN201620678195.XU patent/CN205811851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900055A (en) * | 2022-07-12 | 2022-08-12 | 深圳核心医疗科技有限公司 | Wireless charging rectification circuit and wireless charging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |