CN204465366U - A kind of protection type bridge rectifier and there is its module - Google Patents
A kind of protection type bridge rectifier and there is its module Download PDFInfo
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- CN204465366U CN204465366U CN201520137910.4U CN201520137910U CN204465366U CN 204465366 U CN204465366 U CN 204465366U CN 201520137910 U CN201520137910 U CN 201520137910U CN 204465366 U CN204465366 U CN 204465366U
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Abstract
The utility model discloses a kind of protection type bridge rectifier and has its module.This protection type bridge rectifier, comprising: AC transformer, ac input end: comprise input AC positive pole and input AC negative pole; DC output end: comprise and export direct-flow positive pole and export direct current negative pole; Rectifier diode, is located between ac input end and DC output end; The two-way transient state killer tube of input; The two-way transient state killer tube of output; The vice-side winding of ac input end and AC transformer is electrically connected, described input two-way transient state killer tube is integrated between described input AC positive pole and described input AC negative pole, and described output two-way transient state killer tube is integrated between described output direct-flow positive pole and described output direct current negative pole.This has the module of protection type bridge rectifier, comprises protection type bridge rectifier as above.Compared with prior art; the utility model, by two two-way transient state killer tubes of output being integrated in respectively input and the output of bridge rectifier, can being protected rectifier bridge not affect by input power surge and protect downstream load circuit not damage by upstream surge noise effect.
Description
Technical field
The utility model relates to a kind of bridge rectifier, particularly relates to a kind of protection type bridge rectifier and has its module.
Background technology
Bridge rectifier is one common in rectification circuit, and its basic functional principle utilizes the alternating voltage of the unidirectional general character of diode to input to carry out rectification.At present, AC-input voltage fluctuation is frequent or AC-input voltage is instantaneous too high, the easy puncture short of inside modules power device; Also may there is peak voltage in the output voltage after rectification, cause the damage of load device or rectifier diode.
In addition, existing bridge rectifier is generally all incorporated in the circuit design of product, and the product of different series can carry out the design of repetition, and without independent, general module can be used.
Utility model content
The purpose of this utility model is to provide a kind of protection type bridge rectifier that can solve the problems of the technologies described above.
The purpose of this utility model is also to provide a kind of module with protection type bridge rectifier.
Wherein, protection type bridge rectifier comprises:
Alternating current transformer: comprise former limit winding and vice-side winding;
Ac input end: comprise input AC positive pole and input AC negative pole;
DC output end: comprise and export direct-flow positive pole and export direct current negative pole;
Rectifier diode, is located between described ac input end and described DC output end;
The two-way transient state killer tube of input;
The two-way transient state killer tube of output;
Wherein, the vice-side winding of described ac input end and described AC transformer is electrically connected, described input two-way transient state killer tube is integrated between described input AC positive pole and described input AC negative pole, and described output two-way transient state killer tube is integrated between described output direct-flow positive pole and described output direct current negative pole;
Input two-way transient state killer tube ends when described alternating current transformer vice-side winding normal output voltage, can transient switching clamp voltage when high voltage surge appears in described alternating current transformer vice-side winding;
Output two-way transient state killer tube ends when described output direct-flow positive pole and described output direct current negative pole normal output voltage, can transient switching clamp voltage when high voltage surge appears in described output direct-flow positive pole and described output direct current negative pole.
As further improvement of the utility model, described protection type bridge rectifier also comprises load circuit, and described load circuit and described DC output end are electrically connected.
As further improvement of the utility model, described protection type bridge rectifier also comprises filter, and described filter is in parallel with described DC output end.
For realizing above-mentioned another utility model object, the utility model provides a kind of module with protection type bridge rectifier, comprises the protection type bridge rectifier as above described in any one.
Compared with prior art; the protection type bridge rectifier that the utility model provides, by two two-way transient state killer tubes of output being integrated in respectively input and the output of bridge rectifier, can being protected rectifier bridge not affect by input power surge and protect downstream load circuit not damage by upstream surge noise effect.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of protection type bridge rectifier in the utility model one execution mode.
Fig. 2 is the front layout design drawing in the utility model one execution mode with protection type bridge rectifier module.
Fig. 3 is the reverse side layout design drawing in the utility model one execution mode with protection type bridge rectifier module.
Embodiment
Below with reference to embodiment shown in the drawings, the utility model is described in detail.But these execution modes do not limit the utility model, the structure that those of ordinary skill in the art makes according to these execution modes, method or conversion functionally are all included in protection range of the present utility model.
Ginseng Fig. 1, introduces an embodiment of protection type bridge rectifier of the present utility model.Rectification circuit (rectifying circuit) is converted to AC energy in the circuit of direct current energy.Most of rectification circuit is made up of alternating current transformer, rectification main circuit and filter etc.This circuit, be made up of an alternating current transformer (comprising former limit winding, vice-side winding and iron core) and two brachium pontis (comprising two pairs of rectifier diodes), can full-wave rectification be realized, overcome the shortcoming of halfwave rectifier simultaneously to a certain extent.In the present embodiment; protection type bridge rectifier comprises alternating current transformer (not shown), ac input end, DC output end, rectifier diode D1; D2, D3, D4, input two-way transient state killer tube D5, output two-way transient state killer tube D6 and filter (not shown).
Wherein, ac input end comprises input AC positive pole 10 and input AC negative pole 20, DC output end comprises output direct-flow positive pole 30 and exports direct current negative pole 40, rectifier diode D1, D2, D3, D4, be located between ac input end and DC output end, input two-way transient state killer tube D5 is integrated between input AC positive pole 10 and input AC negative pole 20, and output two-way transient state killer tube D6 is integrated in and exports direct-flow positive pole 30 and export between direct current negative pole 40.Protection type bridge rectifier also comprises load circuit (not shown) and filter (not shown), and load circuit and DC output end are electrically connected, and filter is in parallel with DC output end.
Input AC positive pole 10 and input AC negative pole 20 connect the output of alternating current transformer (not shown) vice-side winding, and usually, transformer according to the operating voltage determination transformation ratio of backend load, and can carry out transformation process.Transformer secondary exports when positive half period and input AC positive pole 10 is just, input AC negative pole 20 is negative, rectifier diode D1, D3 conducting; Transformer secondary exports when negative half-cycle and input AC positive pole 10 is negative, and input AC negative pole 20 is just, rectifier diode D2, D4 conducting.In the whole cycle that this circuit makes alternating current transformer secondary export, export direct-flow positive pole 30 and export direct current negative pole 40 and provide forward voltage to load (not shown) all the time, then make output direct-flow positive pole 30 by the filter (not shown) in parallel with DC output end and export direct current negative pole 40 to provide level and smooth direct voltage to load.
Input two-way transient state killer tube D5 is integrated between the input AC positive pole 10 of protection type rectifier bridge and input AC negative pole 20, and output two-way transient state killer tube D6 is integrated in the output direct-flow positive pole 30 of protection type rectifier bridge and exports between direct current negative pole 40.
Input two-way transient state killer tube D5 ends when alternating current transformer secondary normal output voltage; can transient switching clamp voltage when high voltage surge appears in alternating current transformer secondary; high voltage surge is released; prevent the rectifier diode of rear end to be burned, rectifier bridge can be protected not affect by input power surge.
Output two-way transient state killer tube D6 ends when exporting direct-flow positive pole 30 and exporting direct current negative pole 40 normal output voltage; can transient switching clamp voltage when exporting direct-flow positive pole 30 and exporting when high voltage surge appears in direct current negative pole 40; high voltage surge is released; clamper protection can be carried out to downstream load circuit, prevent from being damaged by upstream surge noise.
In addition; protection type rectifier circuit can also be made standard component encapsulation storehouse by the utility model and Standard PC B encapsulates storehouse, if the product of different series uses identical rectification circuit directly can call encapsulation storehouse, without the need to design iterations when designing; without the need to repeating placement-and-routing, the design cycle can be shortened.
Shown in ginseng Fig. 2 and Fig. 3; the utility model also provides a kind of module with protection type bridge rectifier; this module is by adopting the protection type bridge rectifier introduced in the respective embodiments described above; the beneficial effect that in the respective embodiments described above, protection type bridge rectifier has can be obtained; and; owing to not making improvement to other structures of this module or function, therefore at this, other structure that this has the module of protection type bridge rectifier is also repeated no more.
The utility model protection type rectifier circuit can realize individual packages, and actual production technique comprises PCB and produces, component encapsulation.Have in Fig. 2 in six paster regions 50, Fig. 3 and have four to mount port 60.Standalone module in the utility model can be tested separately when producing, then mounts on actual product, improves the yield of final products, ensures the quality of final products.
Be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, technical scheme in each execution mode also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility execution mode of the present utility model; they are also not used to limit protection range of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection range of the present utility model.
Claims (4)
1. a protection type bridge rectifier, is characterized in that, comprising:
Alternating current transformer: comprise former limit winding and vice-side winding;
Ac input end: comprise input AC positive pole and input AC negative pole;
DC output end: comprise and export direct-flow positive pole and export direct current negative pole;
Rectifier diode, is located between described ac input end and described DC output end;
The two-way transient state killer tube of input;
The two-way transient state killer tube of output;
Wherein, the vice-side winding of described ac input end and described AC transformer is electrically connected, described input two-way transient state killer tube is integrated between described input AC positive pole and described input AC negative pole, and described output two-way transient state killer tube is integrated between described output direct-flow positive pole and described output direct current negative pole;
Input two-way transient state killer tube ends when described alternating current transformer vice-side winding normal output voltage, can transient switching clamp voltage when high voltage surge appears in described alternating current transformer vice-side winding;
Output two-way transient state killer tube ends when described output direct-flow positive pole and described output direct current negative pole normal output voltage, can transient switching clamp voltage when high voltage surge appears in described output direct-flow positive pole and described output direct current negative pole.
2. protection type bridge rectifier according to claim 1, is characterized in that, described protection type bridge rectifier also comprises load circuit, and described load circuit and described DC output end are electrically connected.
3. protection type bridge rectifier according to claim 1, is characterized in that, described protection type bridge rectifier also comprises filter, and described filter is in parallel with described DC output end.
4. there is a module for protection type bridge rectifier, it is characterized in that, comprise the protection type bridge rectifier as above described in arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137910.4U CN204465366U (en) | 2015-03-11 | 2015-03-11 | A kind of protection type bridge rectifier and there is its module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137910.4U CN204465366U (en) | 2015-03-11 | 2015-03-11 | A kind of protection type bridge rectifier and there is its module |
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| Publication Number | Publication Date |
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| CN204465366U true CN204465366U (en) | 2015-07-08 |
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| CN201520137910.4U Active CN204465366U (en) | 2015-03-11 | 2015-03-11 | A kind of protection type bridge rectifier and there is its module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682731A (en) * | 2015-03-11 | 2015-06-03 | 禾邦电子（中国）有限公司 | Protection type bridge rectifier circuit and module comprising the same |
| CN117559374A (en) * | 2024-01-05 | 2024-02-13 | 深圳市信瑞达电力设备有限公司 | Protection circuit topology and method of leakage current sensor |
-
2015
- 2015-03-11 CN CN201520137910.4U patent/CN204465366U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682731A (en) * | 2015-03-11 | 2015-06-03 | 禾邦电子（中国）有限公司 | Protection type bridge rectifier circuit and module comprising the same |
| CN117559374A (en) * | 2024-01-05 | 2024-02-13 | 深圳市信瑞达电力设备有限公司 | Protection circuit topology and method of leakage current sensor |
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