CN202019311U - Controllable rectifying bridge for alternating-current generator - Google Patents
Controllable rectifying bridge for alternating-current generator Download PDFInfo
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- CN202019311U CN202019311U CN2011201274585U CN201120127458U CN202019311U CN 202019311 U CN202019311 U CN 202019311U CN 2011201274585 U CN2011201274585 U CN 2011201274585U CN 201120127458 U CN201120127458 U CN 201120127458U CN 202019311 U CN202019311 U CN 202019311U
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- brachium pontis
- current generator
- alternating current
- operational amplifier
- effect transistor
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Abstract
The utility model provides a controllable rectifying bridge for an alternating-current generator, which is used for solving the problems of low control precision and instability of signals in a rectification circuit in the prior art. The controllable rectifying bridge for the alternating-current generator comprises three upper bridge arms and three lower bridge arms corresponding to the upper bridge arms respectively, each bridge arm comprises a rectification element and a driving device of the rectification element, the rectification element is a field-effect tube, and the driving device includes an operational amplifier. The controllable rectifying bridge with the technical scheme is favorable for improving low control precision and reliability of the rectification circuit and finer in rectification effect so that the output performance of the generator is enhanced.
Description
Technical field
The utility model relates to a kind of alternating current generator rectifier bridge, relates in particular to a kind of alternating current generator controlled rectification bridge.
Background technology
Progressively raising along with the vehicle energy saving environmental requirement cuts down the consumption of energy, raises the efficiency the trend that becomes the automobile current generator development.Traditional rectifier bridge adopts diode to carry out rectification, and its conduction voltage drop is bigger, and this has just caused the loss of output of a generator in rectification circuit to strengthen, thereby has reduced the output performance of generator.
Above-mentioned defective at traditional rectifier bridge existence, the rectifier bridge that a kind of rectification circuit adopts MOSFET (field effect transistor) to carry out rectification has also appearred in the prior art, for example, disclosed rectifier bridge among the US Patent specification US20040232538A1, the rectification circuit of this rectifier bridge adopts MOSFET to carry out rectification, because MOSFET has Low ESR, the less characteristic of conduction voltage drop, thereby greatly reduce the loss of alternating current generator in rectification circuit, but also have the problem that control precision is low, signal is stable inadequately simultaneously.
In the prior art, there is the problem that control precision is low, signal is stable inadequately in rectification circuit, for these problems, does not propose effective solution at present as yet.
Summary of the invention
Main purpose of the present utility model provides a kind of alternating current generator controlled rectification bridge, to solve the low problem of control precision that rectification circuit exists in the prior art, another purpose of the present utility model is to solve the stable inadequately problem of signal that rectification circuit exists.
To achieve these goals, the utility model provides a kind of alternating current generator controlled rectification bridge.
Alternating current generator controlled rectification bridge of the present utility model comprises: go up brachium pontis and corresponding described respectively three three following brachium pontis going up brachium pontis for three, each brachium pontis includes the drive unit of rectifier cell and described rectifier cell, described rectifier cell is a field effect transistor, wherein, comprise operational amplifier in the described drive unit.
Further, the grid of the field effect transistor in the output of each described operational amplifier and this operational amplifier place brachium pontis is connected.
Further, described three inverting inputs of going up in the brachium pontis each operational amplifier of going up brachium pontis by last resistance separately be connected with the high level output of described alternating current generator controlled rectification bridge, in-phase input end is connected with inverting input of the operational amplifier of its pairing time brachium pontis by following resistance separately, the source electrode of the field effect transistor in the in-phase input end of each operational amplifier of described three following brachium pontis and this operational amplifier place brachium pontis is connected.
Further, go up in the brachium pontis that each drain electrode of going up the field effect transistor of brachium pontis all is connected with the high level output of described alternating current generator controlled rectification bridge, the source electrode of the field effect transistor of brachium pontis all is connected with drain electrode of the field effect transistor of its pairing time brachium pontis on each for described three.
Further, also comprise three voltage stabilizing circuits, each voltage stabilizing circuit is connected across respectively between the in-phase input end and earth terminal of each operational amplifier of described three following brachium pontis.
Further, described three voltage stabilizing circuits include series arm that is serially connected with voltage-stabiliser tube and diode and the flat wave capacitor that is in parallel with described series arm, the negative pole of each voltage-stabiliser tube and the positive pole of each flat wave capacitor be the in-phase input end of concatenation operation amplifier respectively, and the negative pole of each diode all is connected with described earth terminal with the negative pole of each flat wave capacitor.
Further, each voltage-stabiliser tube in described three voltage stabilizing circuits is the 16V voltage-stabiliser tube.
Further, each field effect transistor as described rectifier cell is a N type field effect transistor.
According to the technical solution of the utility model, in the drive unit of rectifier cell, replace triode of the prior art with operational amplifier, thereby avoided causing the low negative consequence of rectification circuit control precision because of triode self precision is low, simultaneously, in the rectification circuit of following brachium pontis, added voltage stabilizing circuit, can make down the operational amplifier of brachium pontis obtain more stable signal, thereby improve the control precision and the reliability of rectification circuit greatly.
Description of drawings
Figure of description is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation according to the alternating current generator controlled rectification bridge of the utility model embodiment.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is the structural representation according to the alternating current generator controlled rectification bridge of the utility model embodiment, as shown in Figure 1, this alternating current generator controlled rectification bridge mainly comprises: go up brachium pontis and three following brachium pontis for three, three go up brachium pontis be respectively on the brachium pontis on first 1, second 3, three following brachium pontis of brachium pontis on the brachium pontis 2 and the 3rd be respectively the first time brachium pontis 4 corresponding with brachium pontis 1 on described first, with described second on the corresponding second time brachium pontis 5 of brachium pontis 2 and with the described the 3rd on the 3rd time corresponding brachium pontis 6 of brachium pontis 3.
In the present embodiment, the structure of three last brachium pontis is all identical with the structure of three following brachium pontis, going up brachium pontis and the annexation of three following brachium pontis of correspondence is also all identical respectively for three, is that example is described its structure and position annexation in detail with brachium pontis 1 on first and first time brachium pontis 4 corresponding with it below.
As shown in Figure 1, brachium pontis 1 comprises first drive unit 12 of first rectifier cell 11 and first rectifier cell 11 on first.
What first rectifier cell 11 adopted is first field effect transistor 111, and in the present embodiment, first field effect transistor 111 is a N type field effect transistor.
In the such scheme of present embodiment, the utility model alternating current generator controlled rectification bridge replaces triode of the prior art with operational amplifier in the drive unit of rectifier cell, thereby has avoided causing because of triode self precision is low the low negative consequence of rectification circuit control precision.
For each operational amplifier that makes first time brachium pontis 4, second time brachium pontis 5 and the 3rd time brachium pontis 6 obtains more stable signal, to improve the control precision and the reliability of rectification circuit, the utility model alternating current generator controlled rectification bridge also comprises three voltage stabilizing circuits, be respectively first voltage stabilizing circuit 7, second voltage stabilizing circuit 8 and the 3rd voltage stabilizing circuit 9, each voltage stabilizing circuit is connected across respectively between the in-phase input end and earth terminal of each operational amplifier of three following brachium pontis.
In the present embodiment, the structure of three voltage stabilizing circuits is identical, and the annexation with three following brachium pontis is all identical respectively, is that example is described its structure and position annexation in detail with first voltage stabilizing circuit 7 and first time brachium pontis 4 corresponding with it below.
As shown in Figure 1, first voltage stabilizing circuit 7 comprises first voltage-stabiliser tube 71, first diode 72 and first flat wave capacitor 73, wherein, first voltage-stabiliser tube 71 and first diode 72 order serial connection up and down form series arm, and the branch road at first flat wave capacitor, 73 places is in parallel with the series arm that first voltage-stabiliser tube 71 and first diode 72 form.
As shown in Figure 1, the negative pole of first voltage-stabiliser tube 71 and the positive pole of first flat wave capacitor 73 are connected the in-phase input end of four-operational amplifier 421 respectively, and the negative pole of the negative pole of first diode 72 and first flat wave capacitor 73 all is connected earth terminal.
In the present embodiment, the voltage-stabiliser tube in three voltage stabilizing circuits is the 16V voltage-stabiliser tube.
From above description, as can be seen, alternating current generator controlled rectification bridge of the present utility model, in the drive unit of rectifier cell, replace triode of the prior art with operational amplifier, thereby avoided causing the low negative consequence of rectification circuit control precision, simultaneously, in the rectification circuit of following brachium pontis, added voltage stabilizing circuit because of triode self precision is low, can make down the operational amplifier of brachium pontis obtain more stable signal, thereby improve the control precision and the reliability of rectification circuit greatly.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. alternating current generator controlled rectification bridge, comprise that three are gone up brachium pontis and corresponding described respectively three three following brachium pontis going up brachium pontis, each brachium pontis includes the drive unit of rectifier cell and described rectifier cell, described rectifier cell is a field effect transistor, it is characterized in that, comprise operational amplifier in the described drive unit.
2. alternating current generator controlled rectification bridge according to claim 1 is characterized in that, the grid of the field effect transistor in the output of each described operational amplifier and this operational amplifier place brachium pontis is connected.
3. alternating current generator controlled rectification bridge according to claim 2, it is characterized in that, described three inverting inputs of going up in the brachium pontis each operational amplifier of going up brachium pontis by last resistance separately be connected with the high level output of described alternating current generator controlled rectification bridge, in-phase input end is connected with inverting input of the operational amplifier of its pairing time brachium pontis by following resistance separately, the source electrode of the field effect transistor in the in-phase input end of each operational amplifier of described three following brachium pontis and this operational amplifier place brachium pontis is connected.
4. alternating current generator controlled rectification bridge according to claim 3, it is characterized in that, go up in the brachium pontis that each drain electrode of going up the field effect transistor of brachium pontis all is connected with the high level output of described alternating current generator controlled rectification bridge, the source electrode of the field effect transistor of brachium pontis all is connected with drain electrode of the field effect transistor of its pairing time brachium pontis on each for described three.
5. according to each described alternating current generator controlled rectification bridge in the claim 1 to 4, it is characterized in that, also comprise three voltage stabilizing circuits, each voltage stabilizing circuit is connected across respectively between the in-phase input end and earth terminal of each operational amplifier of described three following brachium pontis.
6. alternating current generator controlled rectification bridge according to claim 5, it is characterized in that, described three voltage stabilizing circuits include series arm that is serially connected with voltage-stabiliser tube and diode and the flat wave capacitor that is in parallel with described series arm, the negative pole of each voltage-stabiliser tube and the positive pole of each flat wave capacitor be the in-phase input end of concatenation operation amplifier respectively, and the negative pole of each diode all is connected with described earth terminal with the negative pole of each flat wave capacitor.
7. alternating current generator controlled rectification bridge according to claim 6 is characterized in that, each voltage-stabiliser tube in described three voltage stabilizing circuits is the 16V voltage-stabiliser tube.
8. alternating current generator controlled rectification bridge according to claim 1 is characterized in that, each field effect transistor as described rectifier cell is a N type field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201274585U CN202019311U (en) | 2011-04-26 | 2011-04-26 | Controllable rectifying bridge for alternating-current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201274585U CN202019311U (en) | 2011-04-26 | 2011-04-26 | Controllable rectifying bridge for alternating-current generator |
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| Publication Number | Publication Date |
|---|---|
| CN202019311U true CN202019311U (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201274585U Expired - Fee Related CN202019311U (en) | 2011-04-26 | 2011-04-26 | Controllable rectifying bridge for alternating-current generator |
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| CN (1) | CN202019311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977494A (en) * | 2014-04-01 | 2015-10-14 | 青岛海信日立空调系统有限公司 | Method for detecting electric leakage of electric appliance, and electric appliance |
-
2011
- 2011-04-26 CN CN2011201274585U patent/CN202019311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977494A (en) * | 2014-04-01 | 2015-10-14 | 青岛海信日立空调系统有限公司 | Method for detecting electric leakage of electric appliance, and electric appliance |
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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: 20111026 Termination date: 20180426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |