CN204835962U - Voltage doubler rectifier circuit - Google Patents
Voltage doubler rectifier circuit Download PDFInfo
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- CN204835962U CN204835962U CN201520466453.3U CN201520466453U CN204835962U CN 204835962 U CN204835962 U CN 204835962U CN 201520466453 U CN201520466453 U CN 201520466453U CN 204835962 U CN204835962 U CN 204835962U
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- 230000007935 neutral effect Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a simple voltage doubler rectifier circuit, including filter inductor, boost circuit, rectifier circuit and filter circuit, the circuit topology only comprises diode and electric capacity, does not need step up transformer. Be applicable to powerful application scenario, the circuit is simple, small, the cost low. This voltage doubler rectifier circuit can realize when three phase current that the rectified output DC voltage reaches 2 times of the line voltage peak value, realize when single phase power perhaps that the rectified output DC voltage reaches 2 times or 4 times of the phase voltage peak value.
Description
[technical field]
The utility model belongs to AC-DC rectification circuit technical field, particularly a kind of voltage doubling rectifing circuit.
[background technology]
The available direct voltage of three-phase bridge diode rectifier circuit is the peak value of three-phase line voltage; The available direct voltage of single-phase bridge diode rectifier circuit is the peak value of single-phase voltage; The available direct voltage of single-phased two-half-wave diode rectifier circuit is 2 times of single-phase voltage peak value.When needing higher rectification output dc voltage, generally need to use step-up transformer, such that the volume of rectifier power source increases, cost rising; Boost rectifying circuit load capacity when progression increases of diode and electric capacity cascade reduces, and is suitable only for low power occasion.Under the occasion of a lot of engineer applied, need to use jumbo high-voltage dc voltage.
[utility model content]
The purpose of this utility model is to provide a kind of voltage doubling rectifing circuit, and its topology is made up of diode and electric capacity completely, does not need step-up transformer, 2 times that can realize when three phase mains that rectification output dc voltage reaches line voltage peak; Or 2 times or 4 times that realize when single phase poaer supply that rectification output dc voltage reaches phase voltage peak value.
To achieve these goals, the utility model adopts following technical scheme:
A kind of voltage doubling rectifing circuit, comprises filter inductance, booster circuit, rectification circuit and filter circuit;
Described filter inductance comprises inductance L
1, L
2, L
3, each phase inductance is connected between a pair electric capacity mid point in A, B, C phase of input ac power and each phase booster circuit of correspondence respectively;
Described booster circuit comprises 3 groups of electric capacity C respectively
1/ C
2, C
3/ C
4, C
5/ C
6with 3 groups of diode half-bridge VD
2/ VD
3, VD
6/ VD
7, VD
10/ VD
11, the mid point of 3 groups of diode half-bridge links together, and forms virtual approximate mains neutral point N '; 3 groups of electric capacity C
1/ C
2, C
3/ C
4, C
5/ C
6mid point be connected on filter inductance L respectively
1, L
2, L
3right-hand member;
Described rectification circuit comprises 6 diode VD
1, VD
4, VD
5, VD
8, VD
9, VD
12; Wherein diode VD
1, VD
5, VD
9cathode interconnect forms output dc voltage U
danode; Diode VD
1, VD
5, VD
9anode connect diode VD respectively
2, VD
6, VD
10negative electrode; Diode VD
1, VD
5, VD
9negative electrode connect VD respectively
3, VD
7, VD
11anode; Diode VD
4, VD
8, VD
12anode interconnect form output dc voltage U
dnegative terminal;
Described filtered electrical routing capacitance C
7and C
8forward be composed in series mutually, its mid point is N
2, at C
7and C
8on obtain output dc voltage U
d.
The utility model further improves and is: inductance L
1, L
2, L
3be 3 single-phase inductance or 1 three pole reactor.
The utility model further improves and is: 3 phase supply voltage A, B, C are symmetrical, inductance L
1, L
2and L
3equal, electric capacity C
1, C
2, C
3, C
4, C
5, C
6equal, electric capacity C
7, C
8equal; Booster circuit diode mid point N ' and electric capacity C
7and C
8mid point N
2equipotential, N ' point and N
2point connects or does not connect.
The utility model further improves and is: 3 phase supply voltage A, B, C are symmetrical, inductance L
1, L
2and L
3equal, electric capacity C
1, C
2, C
3, C
4, C
5, C
6equal, electric capacity C
7, C
8equal; Input in the electric current of 3 phase power supply A, B, C and do not comprise zero-sequence component.
The utility model further improves and is: 3 phase power supplys of voltage doubling rectifing circuit are 3 phase 4 lines; The neutral point N of 3 phase power supplys is connected with the mid point N ' of 3 groups of diode half-bridge, the neutral point N of 3 phase power supplys not with N
2point is connected.
The utility model further improves and is: 3 phase power supplys of voltage doubling rectifing circuit are 3 phase 4 lines; The neutral point N of 3 phase power supplys, the mid point N ' of 3 groups of diode half-bridge, and C
7and C
8mid point N
23 link together.
The utility model further improves and is: containing zero-sequence component in 3 phase currents of A, B, C three-phase, inductance L
1, L
2and L
33 single-phase inductance.
A kind of voltage doubling rectifing circuit, comprises inductance L
4, electric capacity C
9, electric capacity C
10, diode VD
14, diode VD
15, diode VD
13, diode VD
16with electric capacity C
11;
Inductance L
4be connected on a pair electric capacity C in the positive pole of input ac power US and booster circuit
9, electric capacity C
10mid point between;
Diode VD
14, diode VD
15forward connect, VD
14negative electrode upwards with C
9positive pole connect, VD
15anode downwards and C
10negative pole connect; VD
14and VD
15mid point connect the negative pole of input ac power US;
Diode VD
13anode connect VD
14negative electrode, diode VD
13negative electrode connect electric capacity C
11positive pole; Diode VD
16negative electrode connect VD
15anode, diode VD
16anode connect electric capacity C
11negative pole.
A kind of voltage doubling rectifing circuit, comprises inductance L
5, electric capacity C
12, electric capacity C
13, diode VD
18, diode VD
19, diode VD
17, diode VD
20, electric capacity C
14with electric capacity C
15;
Inductance L
5be connected on a pair electric capacity C in the positive pole of input ac power US and booster circuit
12, electric capacity C
13mid point between;
Diode VD
18, diode VD
19forward connect, VD
18negative electrode upwards with C
12positive pole connect, VD
19anode downwards and C
13negative pole connect;
Diode VD
17anode connect VD
18negative electrode, diode VD
17negative electrode connect electric capacity C
14positive pole; Diode VD
20negative electrode connect VD
19anode, diode VD
19anode connect electric capacity C
15negative pole; Electric capacity C
14with electric capacity C
15in sequential series, electric capacity C
14with electric capacity C
15mid point connect VD
18and VD
19mid point and the neutral point N of input ac power US.
In the utility model, rectification circuit is made up of 6 diodes, VD
1, VD
5and VD
9be connected into commoncathode, realize carrying out rectification to 3 forward voltages after boosting, its common cathode is output dc voltage U
d" anode "; VD
4, VD
8and VD
12be connected into common-anode, realize carrying out rectification to 3 negative voltage after boosting, its public anode is output dc voltage U
d" negative terminal ".
Relative to prior art, the utility model has following beneficial effect: the utility model can be used for all needs and under fixing alternating voltage, obtains the occasion higher than common bridge-type or double half-wave rectification voltage through diode rectification, such as power quality control technology field.The utility model voltage doubling rectifing circuit, 2 times that can realize that rectification output dc voltage reaches line voltage peak when three phase mains by the rectification circuit of diode and electric capacity composition; Or 2 times or 4 times that realize when single phase poaer supply that rectification output dc voltage reaches phase voltage peak value; The utility model circuit topology is only made up of diode and electric capacity, does not need step-up transformer.Be applicable to powerful application scenario.Circuit is simple, volume is little, cost is low.
[accompanying drawing explanation]
Fig. 1 is the topology diagram of 3 phase voltage doubling rectifing circuits of the present utility model;
Fig. 2 is a kind of topology diagram of voltage doubling rectifing circuit of the present utility model when being applied to single-phase rectifier;
Fig. 3 is the another kind of topology diagram of voltage doubling rectifing circuit of the present utility model when being applied to single-phase rectifier.
[embodiment]
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.、
Refer to shown in Fig. 1, a kind of 3 phase voltage doubling rectifing circuits of the utility model, comprising: filter inductance 1, booster circuit 2, rectification circuit 3 and filter circuit 4.
" (1) 3 phase inlet wire filter inductance " but 3 single-phase inductance also can be 1 three pole reactors, use L respectively
1, L
2and L
3represent, be used for limiting the harmonic current of injected AC source A, B, C.
By 3, relatively independent and identical part forms and corresponds respectively to 3 phases (2) 3 phase booster circuits, and every phase booster circuit is made up of 2 electric capacity and 2 diodes; For A phase, by electric capacity C
1, electric capacity C
2, diode VD
2with diode VD
3composition, C
1and C
2two electrical condensers are to series connection, and its mid point is through inductance L
1connect A phase, diode VD
2and VD
3forward connect, VD
2negative electrode upwards with C
1the other end connect, VD
3anode downwards and C
2the other end connect; The booster circuit of B phase is by C
3, C
4, VD
6and VD
7composition, the booster circuit of C phase is by C
5, C
6, VD
10and VD
11composition, connection is identical with A phase, repeats no more; VD
2and VD
3mid point, VD
6and VD
7mid point, VD
10and VD
11mid point, three mid points connect together, and are designated as N ' point.The voltage max of each boost capacitor is the half of input ac power line voltage peak, through with input ac power voltage superposition after realize " boosting " and act on.
(3) 3 commutating phase circuit are made up of 6 diodes, diode VD
1, diode VD
5with diode VD
9anode meets C respectively
1and VD
2tie point, C
3and VD
6tie point and C
5and VD
10tie point, VD
1, VD
5and VD
9it is output dc voltage U that negative electrode is connected together
d" anode "; Diode VD
4, diode VD
8with diode VD
12negative electrode meets C respectively
2and VD
3tie point, C
4and VD
7tie point and C
6and VD
11tie point, VD
4, VD
8and VD
12it is output dc voltage U that anode is connected together
d" negative terminal ".VD
1, VD
5and VD
9be connected into commoncathode, realize carrying out rectification to 3 forward voltages after boosting, its common cathode is output dc voltage U
d" anode "; VD
4, VD
8and VD
12be connected into common-anode, realize carrying out rectification to 3 negative voltage after boosting, its public anode is output dc voltage U
d" negative terminal ".
(4) filtered electrical routing capacitance C
7with electric capacity C
8composition, C
7and C
8forward connect, C
7upper end and VD
1, VD
5and VD
9negative electrode is connected together, C
8lower end and VD
4, VD
8and VD
12anode is connected together, C
7and C
8mid point be designated as N
2point.
Symmetrical at 3 phase supply voltage A, B, C, inductance L
1, L
2and L
3equal, electric capacity C
1, C
2, C
3, C
4, C
5, C
6equal, and electric capacity C
7, C
8under equal condition, booster circuit diode mid point " N ' " and electric capacity C
7and C
8mid point " N
2" be equipotential.Therefore, " N ' " put and " N
2" put and can be connected together, can not be connected together, the two does not have difference yet.
Under the condition that above-mentioned power supply and circuit are all symmetrical, A, B and C etc. 3 phase current there is no zero-sequence component, so do not need neutral point " N ".Suitable increase inductance L
1, L
2and L
3the harmonic wave in source current can be reduced.Equally, due to A, B and C etc. 3 phase current there is no zero-sequence component, so, inductance L
1, L
2and L
3can be 13 phase inductance, also can be 3 single-phase inductance.
When the voltage doubling rectifing circuit of accompanying drawing 1 of the present utility model is run, electric capacity C
1, C
2, C
3, C
4, C
5and C
6on voltage max be respectively the half of line voltage peak; Electric capacity C
7and C
8on voltage max be respectively line voltage peak; Output dc voltage U
dmaximum be 2 times of line voltage peak.
A kind of topological structure when voltage doubling rectifing circuit of the present utility model is applied to single-phase rectifier is illustrated in accompanying drawing 2.C
9, C
10, VD
14and VD
15with the C in accompanying drawing 1
1, C
2, VD
2and VD
3operating state principle on identical, through diode VD
13and VD
16at C after rectification
11on obtain rectification output dc voltage U
dmaximum be 2 times of input phase voltage peak value.
Another kind of topological structure when voltage doubling rectifing circuit of the present utility model is applied to single-phase rectifier is illustrated in accompanying drawing 3.C
12, C
13, VD
18and VD
19with the C in accompanying drawing 1
1, C
2, VD
2and VD
3operating state principle on identical, through diode VD
17at C after rectification
14on obtain that direct voltage maximum is input phase voltage peak value 2 times; Through diode VD
20at C after rectification
15on obtain that direct voltage maximum is also input phase voltage peak value 2 times.Final at C
14and C
15on obtain rectification output dc voltage U
dmaximum be 4 times of input phase voltage peak value.
Claims (9)
1. a voltage doubling rectifing circuit, is characterized in that, comprises filter inductance, booster circuit, rectification circuit and filter circuit;
Described filter inductance comprises inductance L
1, L
2, L
3, each phase inductance is connected between a pair electric capacity mid point in A, B, C phase of input ac power and each phase booster circuit of correspondence respectively;
Described booster circuit comprises 3 groups of electric capacity C respectively
1/ C
2, C
3/ C
4, C
5/ C
6with 3 groups of diode half-bridge VD
2/ VD
3, VD
6/ VD
7, VD
10/ VD
11, the mid point of 3 groups of diode half-bridge links together, and forms virtual approximate mains neutral point N '; 3 groups of electric capacity C
1/ C
2, C
3/ C
4, C
5/ C
6mid point be connected on filter inductance L respectively
1, L
2, L
3right-hand member;
Described rectification circuit comprises 6 diode VD
1, VD
4, VD
5, VD
8, VD
9, VD
12; Wherein diode VD
1, VD
5, VD
9cathode interconnect forms output dc voltage U
danode; Diode VD
1, VD
5, VD
9anode connect diode VD respectively
2, VD
6, VD
10negative electrode; Diode VD
1, VD
5, VD
9negative electrode connect VD respectively
3, VD
7, VD
11anode; Diode VD
4, VD
8, VD
12anode interconnect form output dc voltage U
dnegative terminal;
Described filtered electrical routing capacitance C
7and C
8forward be composed in series mutually, its mid point is N
2, at C
7and C
8on obtain output dc voltage U
d.
2. a kind of voltage doubling rectifing circuit according to claim 1, is characterized in that, inductance L
1, L
2, L
3be 3 single-phase inductance or 1 three pole reactor.
3. a kind of voltage doubling rectifing circuit according to claim 1, is characterized in that, 3 phase supply voltage A, B, C are symmetrical, inductance L
1, L
2and L
3equal, electric capacity C
1, C
2, C
3, C
4, C
5, C
6equal, electric capacity C
7, C
8equal; Booster circuit diode mid point N ' and electric capacity C
7and C
8mid point N
2equipotential, N ' point and N
2point connects or does not connect.
4. a kind of voltage doubling rectifing circuit according to claim 1, is characterized in that, 3 phase supply voltage A, B, C are symmetrical, inductance L
1, L
2and L
3equal, electric capacity C
1, C
2, C
3, C
4, C
5, C
6equal, electric capacity C
7, C
8equal; Input in the electric current of 3 phase power supply A, B, C and do not comprise zero-sequence component.
5. a kind of voltage doubling rectifing circuit according to claim 1, is characterized in that, 3 phase power supplys of voltage doubling rectifing circuit are 3 phase 4 lines; The neutral point N of 3 phase power supplys is connected with the mid point N ' of 3 groups of diode half-bridge, the neutral point N of 3 phase power supplys not with N
2point is connected.
6. a kind of voltage doubling rectifing circuit according to claim 1, is characterized in that, 3 phase power supplys of voltage doubling rectifing circuit are 3 phase 4 lines; The neutral point N of 3 phase power supplys, the mid point N ' of 3 groups of diode half-bridge, and C
7and C
8mid point N
23 link together.
7. a kind of voltage doubling rectifing circuit according to claim 1, is characterized in that, containing zero-sequence component in 3 phase currents of A, B, C three-phase, and inductance L
1, L
2and L
33 single-phase inductance.
8. a voltage doubling rectifing circuit, is characterized in that, comprises inductance L
4, electric capacity C
9, electric capacity C
10, diode VD
14, diode VD
15, diode VD
13, diode VD
16with electric capacity C
11;
Inductance L
4be connected on a pair electric capacity C in the positive pole of input ac power US and booster circuit
9, electric capacity C
10mid point between;
Diode VD
14, diode VD
15forward connect, VD
14negative electrode upwards with C
9positive pole connect, VD
15anode downwards and C
10negative pole connect; VD
14and VD
15mid point connect the negative pole of input ac power US;
Diode VD
13anode connect VD
14negative electrode, diode VD
13negative electrode connect electric capacity C
11positive pole; Diode VD
16negative electrode connect VD
15anode, diode VD
16anode connect electric capacity C
11negative pole.
9. a voltage doubling rectifing circuit, is characterized in that, comprises inductance L
5, electric capacity C
12, electric capacity C
13, diode VD
18, diode VD
19, diode VD
17, diode VD
20, electric capacity C
14with electric capacity C
15;
Inductance L
5be connected on a pair electric capacity C in the positive pole of input ac power US and booster circuit
12, electric capacity C
13mid point between;
Diode VD
18, diode VD
19forward connect, VD
18negative electrode upwards with C
12positive pole connect, VD
19anode downwards and C
13negative pole connect;
Diode VD
17anode connect VD
18negative electrode, diode VD
17negative electrode connect electric capacity C
14positive pole; Diode VD
20negative electrode connect VD
19anode, diode VD
19anode connect electric capacity C
15negative pole; Electric capacity C
14with electric capacity C
15in sequential series, electric capacity C
14with electric capacity C
15mid point connect VD
18and VD
19mid point and the neutral point N of input ac power US.
Priority Applications (1)
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CN201520466453.3U CN204835962U (en) | 2015-07-01 | 2015-07-01 | Voltage doubler rectifier circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520466453.3U CN204835962U (en) | 2015-07-01 | 2015-07-01 | Voltage doubler rectifier circuit |
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Publication Number | Publication Date |
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CN204835962U true CN204835962U (en) | 2015-12-02 |
Family
ID=54693517
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105048827A (en) * | 2015-07-01 | 2015-11-11 | 国家电网公司 | Voltage multiplying rectification circuit |
-
2015
- 2015-07-01 CN CN201520466453.3U patent/CN204835962U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105048827A (en) * | 2015-07-01 | 2015-11-11 | 国家电网公司 | Voltage multiplying rectification circuit |
CN105048827B (en) * | 2015-07-01 | 2017-10-31 | 国家电网公司 | Voltage doubling rectifing circuit |
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