CN101102083A - Power supply conversion device - Google Patents
Power supply conversion device Download PDFInfo
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- CN101102083A CN101102083A CNA2006101054201A CN200610105420A CN101102083A CN 101102083 A CN101102083 A CN 101102083A CN A2006101054201 A CNA2006101054201 A CN A2006101054201A CN 200610105420 A CN200610105420 A CN 200610105420A CN 101102083 A CN101102083 A CN 101102083A
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Abstract
The invention is concerned with a kind of power supply shift equipment, relating to power supply engender unit, at least two switch units, at least two transformers and power supply output unit. The power supply produced unit produces power supply signal, and the switch unit connects with power supply produced unit electrically and products at least one shift signal respectively. The transformer connects with switch unit and each transformer has the first and second loops, and the first loop accepts shift signals respectively, while the second loops connects with each other in series. The power supply output unit connects with the first loop to transformer electrically.
Description
Technical field
The invention relates to a kind of power supply change-over device, especially in regard to a kind of buck power supply change-over device.
Background technology
Please refer to shown in Figure 1A, known multi-channel straight circulation direct current transducer (Multi-channel DCto DC converyer) the 1st is formed in one group of switching device of each channel usage, 11 collocation inductors 12, and the open and close of passing through switching device 11 are operated, and the energy storage principle of inductor 12, and the DC power supply DC that will import switching device 11 is exported by output OUT after being converted to required DC power supply DC again.
Shown in Figure 1B, another kind of known multi-channel DC DC power supply converter 1 ' is at each passage, utilize above-mentioned switching device 11 collocation coupled in reverse wi transformers 13 to be coupled, and the DC power supply DC that each passage was coupled is sent to outputting inductance 14 and output capacitance 15, and export by output OUT.
From the above, the DC-DC power supply converter of present known use is owing to there is no direct coupled relation between each passage, when one of them passage takes place unusual, and producing the electric current surging, rest channels can't be reacted in real time thereupon, and causes the dynamic response of power supply changeover device slower.Therefore, how to provide a kind of dynamic response speed that can improve power supply change-over device, real one of the current important topic that belongs to.
Summary of the invention
Because above-mentioned problem, purpose of the present invention is for providing a kind of power supply change-over device that can improve dynamic response speed.
Edge is for reaching above-mentioned purpose, to comprise a power supply generation unit, at least two switch elements, at least two transformers and a power supply output unit according to a kind of power supply change-over device of the present invention.The power supply generation unit produces power supply signal; These switch elements are to electrically connect with the power supply generation unit, and these switch element systems produce at least one switching signal respectively according to power supply signal; These transformers are to electrically connect with these switch elements respectively, and each transformer has first coil and second coil, and these first coils are to receive these switching signals respectively, and these second coils are to electrically connect with series system; The power supply output unit is that these first coils with these transformers electrically connect.
In addition, for reaching above-mentioned purpose, comprise the first power supply generation unit, first switch element, second switch unit, at least one magnetic and a power supply output unit according to a kind of power supply change-over device of the present invention.The power supply generation unit produces power supply signal; First switch element is to electrically connect with the power supply generation unit, and first switch element produces at least one first switching signal according to power supply signal; The second switch unit is to electrically connect with the power supply generation unit, and the second switch unit produces at least one second switching signal according to power supply signal; Magnetic has central magnetic post, the first magnetic post, the second magnetic post, be set around the central coil of central magnetic post, be set around first coil of the first magnetic post and be set around second coil of the second magnetic post, wherein the first magnetic post and the second magnetic post are the both sides that are arranged at central magnetic post respectively, and central coil is to electrically connect with series system, first coil is to electrically connect with first switch element, and receive first switching signal, second coil is to electrically connect with the second switch unit, and receives second switching signal; The power supply output unit is to electrically connect with first coil of magnetic and second coil respectively.Wherein, central coil is to constitute a transformer with first coil, and the central coil and second coil are to constitute another transformer.
In addition, for reaching above-mentioned purpose, according to a kind of power supply change-over device of the present invention, it comprises: the power supply generation unit produces power supply signal; First switch element is to electrically connect with this power supply generation unit, and this first switch element produces at least one first switching signal according to this power supply signal; The second switch unit is to electrically connect with this power supply generation unit, and this second switch unit produces at least one second switching signal according to this power supply signal; Magnetic, have central magnetic post, the first magnetic post, the second magnetic post, be set around this first magnetic post first coil, be set around this first magnetic post first interpole coil, be set around second coil of this second magnetic post and be set around second interpole coil of this second magnetic post, these first interpole coils and these second interpole coils are to electrically connect mutually with series system, this first coil is to electrically connect with this first switch element, and receive this first switching signal, this second coil is to electrically connect with this second switch unit, and receives this second switching signal; And the power supply output unit, be to electrically connect with this first coil of this magnetic and this second coil respectively.
From the above, because of foundation a kind of power supply change-over device of the present invention, be to electrically connect with series system by second coil with each transformer, make by the formed passage of each transformer one of can be therein passage when producing the electric current surging, quicken the reaction speed of each channel via the coupling of coil.In addition, integrate at least two transformers, can reduce transformer occupied volume in side circuit by magnetic.
Description of drawings
Figure 1A and Figure 1B are for showing the schematic diagram of known multi-channel DC DC power supply converter;
Fig. 2 is for showing the schematic diagram according to a kind of power supply change-over device of first embodiment of the invention;
Fig. 3 is for showing another schematic diagram according to a kind of power supply change-over device of first embodiment of the invention;
Fig. 4 is the schematic diagram of the transformer of the power supply change-over device of demonstration use ring-shaped core realization Fig. 2;
Fig. 5 is for showing the schematic diagram according to a kind of power supply change-over device of second embodiment of the invention; And
Fig. 6 is for showing the schematic diagram according to a kind of power supply change-over device of third embodiment of the invention.
[main element label declaration]
1,1 ': the multi-channel DC DC power supply converter
11: switching device
12: inductor
13: the coupled in reverse wi transformer
14: outputting inductance
15: output capacitance
2,3: power supply change-over device
21,31: the power supply generation unit
22,32: the first switch elements
23,33: the second switch unit
24,34: the three switch elements
25,35: the four switch elements
26,38: the power supply output unit
36: the first magnetics
37: the second magnetics
41: magnetic
Tx1: first transformer
Tx2: second transformer
Tx3: the 3rd transformer
Tx4: the 4th transformer
PS, PS ': power supply signal
OUT: output
Pia, Pia ': first switching signal
Pib, Pib ': second switching signal
Pic, Pic ': the 3rd switching signal
Pid, Pid ': the 4th switching signal
W1, W2, W3, W4: first coil
W10, W20, W30, W40: second coil
SW11, SW12, SW13, SW14: first switch element
SW21, SW22, SW23, SW24: second switch element
L1: first inductor
L2: second inductor
C1: capacitor
F1, F2, F3, F4: ring-shaped core
M11, M21: the first magnetic post
M12, M22: the second magnetic post
M13, M23: central magnetic post
Co11, Co21: first coil
Co12, Co22: second coil
Co13, Co23: central coil
A11, A21: first interpole coil
A12, A22: second interpole coil
Embodiment
Hereinafter with reference to correlative type, power supply change-over device and magnetic texure thereof according to preferred embodiment of the present invention are described.
Please refer to shown in Figure 2ly, comprise a power supply generation unit 21, at least two switch elements, at least two transformers and a power supply output unit 26 according to a kind of power supply change-over device 2 of first embodiment of the invention.In the present embodiment, be to be example with four switch elements and four transformers, in other words, power supply change-over device 2 comprises first switch element 22, second switch unit 23, the 3rd switch element 24, the 4th switch element 25, the first transformer Tx1, the second transformer Tx2, the 3rd transformer Tx3 and the 4th transformer Tx4.In addition, in present embodiment, power supply change-over device is buck DC-DC power supply conversion equipment (Buck Converter).
Power supply generation unit 21 produces power supply signal PS.In present embodiment, power supply signal PS is a dc power signal.
The first transformer Tx1, the second transformer Tx2, the 3rd transformer Tx3 and the 4th transformer Tx4 electrically connect with first switch element 22, second switch unit 23, the 3rd switch element 24 and the 4th switch element 25 respectively.Wherein, each transformer has first coil (Coil) and second coil, meaning promptly, the first transformer Tx1 has the first coil W1 and the second coil W10, the second transformer Tx2 and has the first coil W2 and the second coil W20, the 3rd transformer Tx3 and have the first coil W3 and the second coil W30 and the 4th transformer Tx4 and have the first coil W4 and the second coil W40.In addition, these first coils W1, W2, W3, W4 receive the first switching signal Pia, the second switching signal Pib, the 3rd switching signal Pic and the 4th switching signal Pid respectively, and these second coils W10, W20, W30, W40 electrically connect and form circulation with series system.
From the above, in present embodiment, first switch element 22, second switch unit 23, the 3rd switch element 24 and the 4th switch element 25 respectively have the first switch element SW11, SW21, SW31, SW41 and second switch element SW12, SW22, SW32, SW42.Wherein each first switch element SW11, SW21, SW31, SW41 and each second switch element SW12, SW22, SW32, SW42 electrically connect with each first coil W1, W2, W3, W4 respectively with parallel way.Wherein the first switch element SW11, SW21, SW31, SW41 and second switch element SW12, SW22, SW32, SW42 can be respectively bipolar junction transistor (BJT) or field-effect transistor (FET).
Power supply output unit 26 is to electrically connect with the first coil W1 of the first transformer Tx1, the second transformer Tx2, the 3rd transformer Tx3 and the 4th transformer Tx4, W2, W3, W4, with the power supply signal output that will be changed via each transformer.
Please refer to shown in Figure 3ly, in present embodiment, power supply change-over device 2 also comprises the first inductor L1, the second inductor L2 and capacitor C1.Wherein, the first inductor L1 electrically connects with the second coil W10 of the first transformer Tx1, the second transformer Tx2, the 3rd transformer Tx3 and the 4th transformer Tx4, W20, W30, W40, and the first inductor L1 is series between the second coil W40 of the second coil W10 of the first transformer Tx1 and the 4th transformer Tx4; The end of the second inductor L2 is to electrically connect with power supply output unit 26, and the other end is to electrically connect with the first coil W1 of the first transformer Tx1, the second transformer Tx2, the 3rd transformer Tx3 and the 4th transformer Tx4, W2, W3, W4, and wherein the other end of the second inductor L2 is that the first coil W1, W2, W3, W4 with the first transformer Tx1, the second transformer Tx2, the 3rd transformer Tx3 and the 4th transformer Tx4 electrically connects with parallel way; Capacitor C1 electrically connects with power supply output unit 26.
Power supply change-over device 2 with Fig. 2 is an example, and the practical structures of its each transformer is can be as shown in Figure 4.Each transformer Tx1, Tx2, Tx3, Tx4 can be set around the first coil W1, W2, W3, W4 and the second coil W10, W20, W30, W40 on ring-shaped core F1, F2, F3, the F4 respectively, and with these second coils W10, W20, W30, W40 connects mutually and form circulation.Yet the foregoing description is to be example with the four-way, and other variation aspect also can connect according to this rule, will no longer add to give unnecessary details in this.
Below, please refer to Fig. 5 and shown in Figure 6, with the power supply change-over device 3 of explanation second embodiment of the invention.In the present embodiment, be to be main explanation at the structure of transformer.
As shown in Figure 5, the power supply change-over device 3 of second embodiment of the invention comprises power supply generation unit 31, first switch element 32, second switch unit 33, the 3rd switch element 34, the 4th switch element 35, first magnetic 36, second magnetic 37 and power supply output unit 38.Wherein, power supply generation unit 31, first switch element 32, second switch unit 33, the 3rd switch element 34, the 4th switch element 35 and power supply output unit 38 are to have identical formation and function with power supply generation unit 21, first switch element 22, second switch unit 23, the 3rd switch element 24, the 4th switch element 25 and the power supply output unit 26 of first embodiment, anticipate promptly, power supply generation unit 31 produces power supply signal PS '; First switch element 32, second switch unit 33, the 3rd switch element 34, the 4th switch element 35 produce the first switching signal Pia ', the second switching signal Pib ', the 3rd switching signal Pic ' and the 4th switching signal Pid ' respectively; The connected mode of inductor or capacitor is also identical with first embodiment, so no longer add to give unnecessary details in this.
First magnetic 36 has the first magnetic post M11, the second magnetic post M12, central magnetic post M13, the first coil Co11, the second coil Co12 and central coil Co13, and the first magnetic post M11 and the second magnetic post M12 are the both sides that are arranged at central magnetic post M13 respectively.Wherein, central coil Co13 is set around central magnetic post M13; The first coil Co11 is set around the first magnetic post M11; The second coil Co12 is set around the second magnetic post M12.In present embodiment, the first coil Co11 electrically connects with first switch element 32, and receives the first switching signal Pia ', and the second coil Co12 electrically connects with second switch unit 33, and receives the second switching signal Pib '.
Second magnetic 37 has the first magnetic post M21, the second magnetic post M22, central magnetic post M23, the first coil Co21, the second coil Co22 and central coil Co23, and the first magnetic post M21 and the second magnetic post M22 are the both sides that are arranged at central magnetic post M23 respectively.Wherein, central coil Co23 is set around central magnetic post M23; The first coil Co21 is set around the first magnetic post M21; The second coil Co22 is set around the second magnetic post M23.In present embodiment, the first coil Co21 electrically connects with the 3rd switch element 34, and receives the 3rd switching signal Pic ', and the second coil Co22 electrically connects with the 4th switch element 35, and receives the 4th switching signal Pid '.In addition, in present embodiment, the central coil Co23 of the central coil Co13 of first magnetic 36 and second magnetic 37 electrically connects and forms circulation with series system.
From the above, the central coil Co13 of first magnetic 36 and the first coil Co11 are the first transformer Tx1 that constitutes as among first embodiment; The central coil Co13 of first magnetic 36 and the second coil Co12 are as constituting the second transformer Tx2 among first embodiment; The central coil Co23 of second magnetic 37 and the first coil Co21 are the 3rd transformer Tx3 that constitutes as among first embodiment; The central coil Co23 of second magnetic 37 and the second coil Co21 are as constituting the 4th transformer Tx4 among first embodiment.Wherein, central coil Co13, Co23 are second coils that is equivalent to each transformer among first embodiment.
As shown in Figure 6, the power supply change-over device 3 of the element of the power supply change-over device 3 of third embodiment of the invention and its connected mode and aforementioned second embodiment is roughly the same, difference is in first magnetic 36 and has the first magnetic post M11, the second magnetic post M12, central magnetic post M13, the first coil Co11, the second coil Co12, the first interpole coil A11, and the second interpole coil A12, and the first magnetic post M11 and the second magnetic post M12 are the both sides that are arranged at central magnetic post M13 respectively.Wherein, the first coil Co11 and the first interpole coil A11 are set around the first magnetic post M11; The second coil Co12 and the second interpole coil A12 are set around the second magnetic post M12.In present embodiment, the first coil Co11 electrically connects with first switch element 32, and receives the first switching signal Pia ', and the second coil Co12 electrically connects with second switch unit 33, and receives the second switching signal Pib '; And second magnetic 37 has the first magnetic post M21, the second magnetic post M22, central magnetic post M23, the first coil Co21, the second coil Co22, the first interpole coil A21 and the second interpole coil A22, and the first magnetic post M21 and the second magnetic post M22 are the both sides that are arranged at central magnetic post M23 respectively.Wherein, the first coil Co21 and the first interpole coil A21 are set around the first magnetic post M21; The second coil Co22 and the second interpole coil A21 are set around the second magnetic post M23.In present embodiment, the first coil Co21 electrically connects with the 3rd switch element 34, and receives the 3rd switching signal Pic ', and the second coil Co22 electrically connects with the 4th switch element 35, and receives the 4th switching signal Pid '.In addition, in present embodiment, the first interpole coil A21 and the second interpole coil A22 of the first interpole coil A11 of first magnetic 36 and the second interpole coil A12 and second magnetic 37 electrically connect and form circulation mutually with series system.
From the above, the first interpole coil A11 of first magnetic 36 and the first coil Co11 are as constituting the first transformer Tx1 among first embodiment; The second interpole coil A12 of first magnetic 36 and the second coil Co12 are as constituting the second transformer Tx2 among first embodiment; The first interpole coil A21 of second magnetic 37 and the first coil Co21 are as constituting the 3rd transformer Tx3 among first embodiment; The second interpole coil A22 of second magnetic 37 and the second coil Co21 are as constituting the 4th transformer Tx4 among first embodiment.
In sum, because of electrically connecting with series system by second coil with each transformer according to a kind of power supply change-over device of the present invention, make by the formed passage of each transformer one of can be therein passage when producing the electric current surging, quicken the reaction speed of each channel via the coupling of coil.In addition, integrate at least two transformers, can reduce transformer occupied volume in side circuit by magnetic.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim scope its equivalent modifications of carrying out or change.
Claims (16)
1, a kind of power supply change-over device comprises:
The power supply generation unit produces power supply signal;
At least two switch elements are to electrically connect with this power supply generation unit, and these switch elements produce at least one switching signal respectively according to this power supply signal;
At least two transformers are to electrically connect with these switch elements respectively, and each transformer has first coil and second coil, and these first coils are to receive these switching signals respectively, and these second coils are to electrically connect mutually with series system; And
The power supply output unit is these the first coils electric connections with these transformers.
2, power supply change-over device according to claim 1, wherein the phase difference of these switching signals is the 360/n degree, wherein n is the quantity of these switch elements.
3, power supply change-over device according to claim 1, it also comprises first inductor, it is that these second coils with these transformers electrically connect, and is series at wherein between these second coils of these transformers.
4, power supply change-over device according to claim 1, it also comprises second inductor, it is that these first coils with this power supply output unit and these transformers electrically connect.
5, a kind of power supply change-over device, it comprises:
The power supply generation unit produces power supply signal;
First switch element is to electrically connect with this power supply generation unit, and this first switch element produces at least one first switching signal according to this power supply signal;
The second switch unit is to electrically connect with this power supply generation unit, and this second switch unit produces at least one second switching signal according to this power supply signal;
Magnetic, have central magnetic post, the first magnetic post, the second magnetic post, be set around this central authorities' magnetic post central coil, be set around first coil of this first magnetic post and be set around second coil of this second magnetic post, this first magnetic post and this second magnetic post are the both sides that are arranged at this central authorities' magnetic post respectively, this central coil is to electrically connect mutually with series system, this first coil is to electrically connect with this first switch element, and receive this first switching signal, this second coil is to electrically connect with this second switch unit, and receives this second switching signal; And
The power supply output unit is to electrically connect with this first coil of this magnetic and this second coil respectively.
6, power supply change-over device according to claim 5, wherein the phase difference of these switching signals is the 360/n degree, wherein n is the quantity of transformer.
7, power supply change-over device according to claim 5 also comprises first inductor, and it is that this central coil with this magnetic electrically connects, and connects with this central coil of this magnetic.
8, power supply change-over device according to claim 5 also comprises second inductor, and it is to electrically connect with this power supply output unit, this first coil and this second coil respectively.
9, a kind of power supply change-over device, it comprises:
The power supply generation unit produces power supply signal;
First switch element is to electrically connect with this power supply generation unit, and this first switch element produces at least one first switching signal according to this power supply signal;
The second switch unit is to electrically connect with this power supply generation unit, and this second switch unit produces at least one second switching signal according to this power supply signal;
Magnetic, have central magnetic post, the first magnetic post, the second magnetic post, be set around this first magnetic post first coil, be set around this first magnetic post first interpole coil, be set around second coil of this second magnetic post and be set around second interpole coil of this second magnetic post, these first interpole coils and these second interpole coils are to electrically connect mutually with series system, this first coil is to electrically connect with this first switch element, and receive this first switching signal, this second coil is to electrically connect with this second switch unit, and receives this second switching signal; And
The power supply output unit is to electrically connect with this first coil of this magnetic and this second coil respectively.
10, power supply change-over device according to claim 9, wherein the phase difference of these switching signals is the 360/n degree, wherein n is the quantity of transformer.
11, power supply change-over device according to claim 9, it also comprises first inductor, it is that this first interpole coil with this magnetic electrically connects, and connects with this first interpole coil of this magnetic.
12, power supply change-over device according to claim 9 also comprises second inductor, and it is to electrically connect with this power supply output unit, this first coil and this second coil respectively.
13, according to claim 1,5 or 9 described power supply change-over devices, also comprise capacitor, it is to electrically connect with this power supply output unit.
14, according to claim 1,5 or 9 described power supply change-over devices, wherein this power supply change-over device is a buck DC-DC power supply conversion equipment.
15, according to claim 1,5 or 9 described power supply change-over devices, wherein these switch elements are bipolar junction transistor or field-effect transistor.
16, according to claim 5 or 9 described power supply change-over devices, wherein this first switch element and this second switch unit have first switch element and second switch element respectively, and these first switch elements and these second switch elements are to electrically connect with this first coil and this second coil respectively with parallel way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101054201A CN101102083A (en) | 2006-07-06 | 2006-07-06 | Power supply conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101054201A CN101102083A (en) | 2006-07-06 | 2006-07-06 | Power supply conversion device |
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| Publication Number | Publication Date |
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| CN101102083A true CN101102083A (en) | 2008-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101054201A Pending CN101102083A (en) | 2006-07-06 | 2006-07-06 | Power supply conversion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412728A (en) * | 2011-12-23 | 2012-04-11 | 航天长峰朝阳电源有限公司 | Chained large-power direct current converting circuit boosting voltages in positive direction |
-
2006
- 2006-07-06 CN CNA2006101054201A patent/CN101102083A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412728A (en) * | 2011-12-23 | 2012-04-11 | 航天长峰朝阳电源有限公司 | Chained large-power direct current converting circuit boosting voltages in positive direction |
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