CN103236786A - Voltage-sharing circuit and inverter - Google Patents
Voltage-sharing circuit and inverter Download PDFInfo
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- CN103236786A CN103236786A CN2013101343574A CN201310134357A CN103236786A CN 103236786 A CN103236786 A CN 103236786A CN 2013101343574 A CN2013101343574 A CN 2013101343574A CN 201310134357 A CN201310134357 A CN 201310134357A CN 103236786 A CN103236786 A CN 103236786A
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Abstract
The invention provides a voltage-sharing circuit and an inverter. The voltage-sharing circuit comprises a first capacitor, a second capacitor, a first switch tube, a second switch tube, a first resistor, a first winding and a second winding. Capacitance of the first capacitor and the second capacitor is the same. Voltage of the first winding and the second winding is the half of the bus voltage. A first node and a second node are connected to two ends of the first capacitor. The second node and a third node are connected to two ends of the second capacitor. A different name end of the first winding is connected with the first node. A same name end of the first winding is connected with the fourth node through the first switch tube. A different name end of the second winding is connected with the fourth node. A same name end of the second winding is connected with the third node through the second switch tube. Two ends of the first resistor are connected with the second node and the fourth node. Voltage between the first node and the third node is the bus voltage. By the circuit which is simple in structure and convenient to control, power consumption is lowered, and cost is not increased.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly a kind of equalizer circuit and inverter.
Background technology
Under multi-level circuit, half-bridge circuit or other high-tension circuit occasions, the capacitances in series of appearance value that equates commonly used realizes dividing equally busbar voltage.Referring to Fig. 1, this figure is a kind of three-level inverter circuit diagram of the prior art.
Be connected in A point and B point after first capacitor C 1 among Fig. 1 and the series connection of second capacitor C 2, namely C1 and C2 divide busbar voltage equally, and the M point namely is bisecting point, and the voltage that M is ordered is half of voltage between A point and the B point.
Fig. 2 is the circuit diagram of the two-level inverter of half-bridge structure, and wherein first capacitor C 1 and second capacitor C 2 also are cascaded and divide busbar voltage equally, and namely the M voltage of ordering is half of busbar voltage.
But in the practical application, because electric capacity technology causes its appearance value there are differences, and leakage current also there are differences, and Chuan Lian several electric capacity are impossible identical like this, therefore, cause busbar voltage not divided equally well.
In order to overcome the above problems, adopt the form in electric capacity two ends parallel resistance, as shown in Figure 3 in the prior art.
The two ends of the two ends of first capacitor C 1 first resistance R, 1, the second capacitor C 2 in parallel second resistance R 2 in parallel.
Because C1 and the leakage current diversity ratio between C2 of series connection are bigger, therefore, when needing electric current on R1 and the R2 to want obviously level greater than capacitor leakage current difference, just can play and all press effect preferably.But ohmically like this power consumption is very big, has reduced the efficient of system.
Therefore, also provide equalizer circuit in the prior art.As shown in Figure 4, adopt switching tube to come balance.
Be connected A point and B point after the 3rd resistance R 3 and the series connection of the 4th resistance R 4 in this circuit; The resistance of R3 and the resistance of R4 equate, utilize R3 and R4 to divide equally busbar voltage, and namely the M1 voltage of ordering is half of busbar voltage (voltage between the AB), and the M1 point is used as the datum mark of half busbar voltage.
First switching tube Q1(NPN pipe) and second switch pipe Q2(PNP manage) connect into push-pull circuit.
When Q1 and Q2 all turn-offed, the current potential that M2 is ordered was identical with the current potential that M is ordered.Press because C1 and C2 are uneven, when M point current potential is not busbar voltage one half, for example, M point current potential is lower than half of busbar voltage, then Q1 conducting, then flow through Q1, R1 of electric current charges to C2, along with the growth in charging interval, then the voltage on the C2 rises, and the current potential of ordering up to M2 rises to half of busbar voltage.The current potential of ordering as M2 is higher than a half of busbar voltage, the Q2 conducting, and at this moment, C2 is by R1, Q2 discharge, and along with the prolongation of discharge time, the voltage of C2 reduces, and therefore, the current potential that M2 is ordered also decreases, and the current potential of ordering up to M2 is half of busbar voltage.
In sum, the voltage that circuit shown in Figure 4 can balance M be ordered is half of busbar voltage, realizes the effect of all pressing.
But Fig. 2 sort circuit need increase by two switching tubes and two resistance, makes circuit structure become complicated, has increased extra circuit cost like this.And the voltage that M1 is ordered is half busbar voltage accurately.
Summary of the invention
The embodiment of the invention provides a kind of equalizer circuit and inverter, can realize all pressures of busbar voltage exactly, and circuit structure is simple, and cost is low.
The embodiment of the invention provides a kind of equalizer circuit, comprising: comprising: first electric capacity, second electric capacity, first switching tube, second switch pipe, first resistance, first winding and second winding;
The appearance value of described first electric capacity and second electric capacity is identical, and the voltage on first winding and second winding respectively is half of busbar voltage;
The two ends of first electric capacity connect first node and Section Point respectively; The two ends of second electric capacity connect Section Point and the 3rd node respectively;
The different name end of first winding connects first node, and the end of the same name of first winding connects the 4th node by first switching tube;
The different name end of second winding connects the 4th node, and the end of the same name of second winding connects the 3rd node by the second switch pipe;
The two ends of first resistance connect Section Point and the 4th node respectively;
Voltage between first node and the 3rd node is busbar voltage.
The embodiment of the invention also provides a kind of inverter, comprising: described equalizer circuit, described first switching tube in the described equalizer circuit and the switching tube in the second switch pipe supply convertor.
The embodiment of the invention also provides a kind of equalizer circuit, comprising: comprising: first electric capacity, second electric capacity, first switching tube, second switch pipe, the 3rd switching tube, first diode, second diode, first resistance, first winding and second winding;
The appearance value of described first electric capacity and second electric capacity is identical, and the voltage on first winding and second winding respectively is half of busbar voltage; The two ends of first electric capacity connect first node and Section Point respectively; The two ends of second electric capacity connect Section Point and the 3rd node respectively;
Be connected in Section Point and the 4th node after first resistance and first switching tube and the series connection of second switch pipe;
First diode and the first switching tube inverse parallel, second diode and the inverse parallel of second switch pipe;
Be connected described first node and the 4th node after the 3rd switching tube and first windings in series;
Perhaps,
Be connected described the 4th node and the 3rd node after the 3rd switching tube and second windings in series.
The embodiment of the invention also provides a kind of inverter, comprising: described equalizer circuit, described the 3rd switching tube in the described equalizer circuit are the switching tube in the supply convertor.
Above technical scheme is added first resistance between Section Point and the 4th node, because the voltage on first winding and second winding respectively is busbar voltage half; Therefore, be the benchmark of half busbar voltage with the 4th node (public point of first winding and second winding), come the voltage of autobalance Section Point identical with the voltage of the 4th node by first resistance.When the voltage of Section Point is higher than the 4th node voltage, the first ohmically sense of current is for to flow to the 4th node by Section Point, second electric capacity powered on and pressed off the beginning discharge this moment, prolongation along with discharge time, make the voltage of Section Point begin to descend, identical with the voltage of the 4th node up to Section Point voltage.When the voltage of the 4th node is higher than Section Point voltage, the second ohmically sense of current is for to flow to Section Point by the 4th node, begin to the charging of second electric capacity, the voltage of Section Point is risen, identical with the voltage of the 4th node up to the voltage of Section Point.When equalizer circuit is realized all pressing more and more near half busbar voltage, be the current potential of current potential and the 4th node of Section Point when identical, according to the electromotive force same principle in the electricity, will do not have electric current on first resistance and pass through, therefore, first resistance can not produce loss.The power consumption of equalizer circuit provided by the invention is more close to 0.Therefore, the power consumption of equalizer circuit provided by the invention has reduced much with respect to the equalizer circuit power consumption of prior art.And equalizer circuit provided by the invention has utilized to switching tube and winding in the supply convertor of system's power supply, not extra other power devices that increase, and circuit structure is fairly simple like this, and control is convenient, does not also increase cost simultaneously.
Description of drawings
Fig. 1 is a kind of three-level inverter circuit diagram of the prior art;
Fig. 2 is the two-level inverter circuit diagram of half-bridge structure of the prior art;
Fig. 3 is a kind of equalizer circuit figure of the prior art;
Fig. 4 is another kind of equalizer circuit figure of the prior art;
Fig. 5 is equalizer circuit embodiment one schematic diagram provided by the invention;
Fig. 6 is the equivalent circuit diagram of Fig. 5 correspondence;
Fig. 6 a is the V that works as of Fig. 6 correspondence
HV
LThe time isoboles;
Fig. 6 b is the V that works as of Fig. 6 correspondence
H＜V
LThe time isoboles;
Fig. 7 is equalizer circuit figure of the prior art;
The another kind of embodiment schematic diagram of the equalizer circuit that Fig. 8 provides;
Fig. 9 a is the another embodiment schematic diagram of equalizer circuit provided by the invention;
Fig. 9 b is another embodiment schematic diagram of equalizer circuit provided by the invention;
Figure 10 is the another embodiment schematic diagram of equalizer circuit provided by the invention.
Embodiment
At first the embodiment of the invention is realized that a kind of equalizer circuit describes, and comprising:
First electric capacity, second electric capacity, first switching tube, second switch pipe, first resistance, first winding and second winding;
The appearance value of described first electric capacity and second electric capacity is identical, and the voltage on first winding and second winding respectively is half of busbar voltage;
The two ends of first electric capacity connect first node and Section Point respectively; The two ends of second electric capacity connect Section Point and the 3rd node respectively;
The different name end of first winding connects first node, and the end of the same name of first winding connects the 4th node by first switching tube;
The different name end of second winding connects the 4th node, and the end of the same name of second winding connects the 3rd node by the second switch pipe;
The two ends of first resistance connect Section Point and the 4th node respectively;
Voltage between first node and the 3rd node is busbar voltage.
Referring to Fig. 5, this figure is equalizer circuit embodiment one schematic diagram provided by the invention.
The equalizer circuit that present embodiment provides comprises: first capacitor C 1, second capacitor C 2, the first switching tube Q1, second switch pipe Q2, first resistance R 1, first winding L 1 and second winding L 2;
The appearance value of described first capacitor C 1 and second capacitor C 2 is identical, and the voltage on first winding L 1 and second winding L 2 respectively is half of busbar voltage;
The two ends of first capacitor C 1 connect first node A and Section Point M respectively; The two ends of second capacitor C 2 connect Section Point M and the 3rd Node B respectively;
The different name end of first winding L 1 connects first node A, and the end of the same name of first winding L 1 connects the 4th node M 1 by the first switching tube Q1;
The end of the same name that the different name end of second winding L 2 connects the 4th node M 1, the second winding L 2 connects the 3rd Node B by second switch pipe Q2;
The two ends of first resistance R 1 connect Section Point M and the 4th node M 1 respectively;
Voltage between first node A and the 3rd Node B is busbar voltage.
Come the operation principle of the equalizer circuit that the labor embodiment of the invention provides below in conjunction with accompanying drawing.
Referring to Fig. 6, this figure is the equivalent circuit diagram of Fig. 5 correspondence.
Among this figure, R2 and R3 are respectively the leakage current equivalent resistances of first capacitor C 1 and second capacitor C 2.
For convenience, establish:
Wherein, V
H, V
LBe respectively the voltage on C1, the C2;
Work as V
HV
LThe time, Fig. 6 can equivalence be shown in Fig. 6 a.
Why work as V below in conjunction with Fig. 6 explanation
HV
LThe time, Fig. 6 can equivalence be shown in Fig. 6 a.
Among Fig. 6, because the voltage on first winding L 1 and second winding L 2 is symmetry equivalent fully, therefore, the current potential that M1 is ordered is the busbar voltage of half, i.e. 0.5*Vbus; Wherein, Vbus is busbar voltage.
Work as V
HV
LThe time, M point current potential is on the low side, and the electric current on first resistance R 1 is for from right to left, so equivalence is that the resistance of this parallel resistance can be come out from the electric current reasoning that R1 flows through at the two ends of first capacitor C 1 resistance in parallel; The electric current of R1 of flowing through can be represented with following formula (2);
I
R1=(0.5*Vbus-V
L)/R1 （2）
Wherein, busbar voltage can be represented with formula (3);
Vbus=V
H+V
L （3）
With formula (2) and (3) substitution formula (1), the resistance that can obtain this resistance is:
Wherein, D is the duty ratio of supply convertor.
Need to prove that the switching tube Q1 in the equalizer circuit that the embodiment of the invention provides and Q2 and winding L 1 and L2 are for the switching tube in the supply convertor of system's power supply, are not the switching tube in the inverter topology.
Be understandable that, work as V
H=V
LThe time, k=1, this moment, equivalent resistance can think that resistance is infinitely great, equalizer circuit will no longer consume any power consumption this moment;
Work as V
H＜V
LThe time, this moment, equivalent resistance was equivalent to be connected in parallel on the two ends of C2, and principle does not repeat them here with to be connected in parallel on the C1 two ends identical.Equivalent circuit diagram is shown in Fig. 6 b, and the resistance of equivalent resistance is:
Above embodiment proves absolutely that L1 and L2 go up even dividing potential drop, and therefore, the current potential that M1 is ordered is half of busbar voltage, and the current potential of ordering with M1 is that benchmark is regulated the current potential that M is ordered.
Illustrate below in conjunction with Fig. 7 why equalizer circuit of the prior art can not solve the dividing potential drop problem in the inverter.
When not having R1 in the circuit, namely the M point directly is connected with the M1 point, and namely 2 current potential is identical.When Q1 and Q2 conducting simultaneously, L1 and L2 are equivalent to directly be connected in parallel on respectively on C1 and the C2, because L1 is identical with the voltage of L2 induction, are half of busbar voltage.If the voltage on the C2 is on the low side, then the N2 higher voltage directly and the electric capacity parallel connection of a low voltage, immediate current will be very big, may cause Q2 to damage like this.And in the inverter applications, because voltage and circuit output current on C1 and the C2 are associated, so the voltage of permanent disequilibrium may occur, cause the switching tube Q1 of L1 and L2 series connection or Q2 to damage the most at last.
From above analysis as can be known, between Section Point and the 4th node, add first resistance, because the voltage on first winding and second winding respectively is busbar voltage half; Therefore, be the benchmark of half busbar voltage with the 4th node (public point of first winding and second winding), come the voltage of autobalance Section Point identical with the voltage of the 4th node by first resistance.When the voltage of Section Point is higher than the 4th node voltage, the first ohmically sense of current is for to flow to the 4th node by Section Point, second electric capacity powered on and pressed off the beginning discharge this moment, prolongation along with discharge time, make the voltage of Section Point begin to descend, identical with the voltage of the 4th node up to Section Point voltage.When the voltage of the 4th node is higher than Section Point voltage, the second ohmically sense of current is for to flow to Section Point by the 4th node, begin to the charging of second electric capacity, the voltage of Section Point is risen, identical with the voltage of the 4th node up to the voltage of Section Point.When equalizer circuit provided by the invention was realized all pressing more and more near half busbar voltage, namely the M current potential of ordering and the M1 current potential of ordering was identical, at this moment, according to the electromotive force same principle in the electricity, to not have electric current on first resistance and pass through, therefore, first resistance can not produce loss.The power consumption of equalizer circuit provided by the invention is more close to 0.Therefore, the power consumption of equalizer circuit provided by the invention has reduced much with respect to the equalizer circuit power consumption of prior art.And equalizer circuit provided by the invention has utilized to switching tube and winding in the supply convertor of system's power supply, not extra other power devices that increase, and circuit structure is fairly simple like this, and control is convenient, does not also increase cost simultaneously.
Need to prove that first resistance in the equalizer circuit that above embodiment provides can also be connected with voltage-stabiliser tube or bi-directional voltage stabilizing pipe.Referring to Fig. 8, this figure is the another kind of embodiment schematic diagram of equalizer circuit provided by the invention.
As shown in Figure 8, also comprise bi-directional voltage stabilizing pipe D;
Described bi-directional voltage stabilizing pipe D be connected between Section Point M and the 4th node M 1 after described first resistance R 1 is connected.
In the present embodiment, utilize R1 and D to connect to reach all pressures effect of different expections.
Need to prove, according to the difference of practical application scene, R1 can be provided with the resistance that to regulate resistance, can realize different all pressures effects by regulating its resistance like this.
Need to prove that the described first switching tube Q1 and second switch pipe Q2 are metal-oxide-semiconductor, transistor or IGBT pipe, do not limit the particular type of Q1 and Q2 among the embodiment provided by the invention.
Among the figure of above embodiment, it is that example is described that described first switching tube and second switch pipe are NPN transistor; Its concrete annexation is as follows:
The collector electrode of the described first switching tube Q1 connects the end of the same name of first winding L 1, and the emitter of the first switching tube Q1 connects the 4th node M 1;
The collector electrode of described second switch pipe Q2 connects the end of the same name of second winding L 2, and the emitter of second switch pipe Q2 connects the 3rd Node B.
Need to prove, the present invention also provides a kind of inverter, and this inverter comprises the described equalizer circuit of above embodiment, wherein, first switching tube in the equalizer circuit and second switch pipe are the switching tube in the supply convertor, rather than the switching tube of inverter topology itself.
In the equalizer circuit that above embodiment provides, switching tube in the supply convertor comprises Q1 and Q2, namely connect to realize by two switching tubes, some application scenario, possible supply voltage is higher, when using a switching tube to realize, the voltage that this switching tube need bear is too high, therefore, uses two switching tubes to connect dividing potential drop, the voltage that bears of each switching tube is lower like this, is favourable to selecting for use of switching tube.
The equalizer circuit that the following examples provide is when realizing by one to the switching tube in the supply convertor of system power supply, also can utilize switching tube in this supply convertor to realize the function of equalizer circuit.Need to prove that in such cases, winding can be similar be divided into two during two switching tubes, continues to realize dividing equally the effect of busbar voltage.
Referring to Fig. 9 a and 9b, this figure is the another embodiment schematic diagram of equalizer circuit provided by the invention.
The equalizer circuit that present embodiment provides comprises: first capacitor C 1, second capacitor C 2, the first switching tube Q1, second switch pipe Q2, the 3rd switching tube Q3, the first diode D1, the second diode D2, first resistance R 1, first winding L 1 and second winding L 2;
The appearance value of described first capacitor C 1 and second capacitor C 2 is identical, and the voltage on first winding L 1 and second winding L 2 respectively is half of busbar voltage;
The two ends of first capacitor C 1 connect first node A and Section Point M respectively; The two ends of second capacitor C 2 connect Section Point M and the 3rd Node B respectively;
Be connected in Section Point M and the 4th node M 1 after first resistance R 1 and the first switching tube Q1 and the second switch pipe Q2 series connection;
The first diode D1 and the first switching tube Q1 inverse parallel, the second diode D2 and second switch pipe Q2 inverse parallel;
Be connected described first node A and the 4th node M 1 after the 3rd switching tube Q3 and the series connection of first winding L 1; Shown in Fig. 9 a.
Perhaps,
Be connected described the 4th node M 1 and the 3rd Node B after the 3rd switching tube Q3 and the series connection of second winding L 2, shown in Fig. 9 b.
Need to prove that D1 and D2 are for current path is provided, when the current potential of ordering as M was higher than the M1 point, during the Q1 conducting, the sense of current of the R1 that flows through this moment was for from left to right, Q2 disconnection this moment, D2 conducting.When the current potential of ordering as M1 was higher than the M point, Q1 disconnected, the D1 conducting, and the Q2 conducting, the sense of current of the R1 that flows through is for from right to left.
The operation principle of this circuit is identical with the operation principle of the equalizer circuit that above embodiment provides, and does not repeat them here.
Q3 in the equalizer circuit that present embodiment provides is the switching tube in the supply convertor, and L1 and L2 are the winding in the supply convertor.
Be understandable that, also can realize all pressures effect of different expections with connect voltage-stabiliser tube or bi-directional voltage stabilizing pipe D of R1 in the present embodiment.Specifically can be referring to Figure 10.
Need to prove, the present invention also provides a kind of inverter again at the equalizer circuit that Fig. 9 a or 9b provide, this inverter comprises Fig. 9 a or the described equalizer circuit of 9b embodiment, wherein, first switching tube in the equalizer circuit and second switch pipe are the switching tube in the supply convertor, rather than the switching tube of inverter topology itself.
Be understandable that the equalizer circuit that the above embodiment of the present invention provides goes in the multi-electrical level inverter, also go in the inverter of half-bridge structure correspondence, also go for having in other high-tension circuits in the circuit that series capacitance all presses.Have to continue under the uneven situation of pressing in circuit, the equalizer circuit that the embodiment of the invention provides can effectively solve the problem of all pressing, and power consumption is little, and simple in structure, cost is low.
Device embodiment described above only is schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of module to realize the purpose of present embodiment scheme according to the actual needs.Those of ordinary skills namely can understand and implement under the situation of not paying creative work.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation of the spirit or scope that do not break away from the embodiment of the invention in other embodiments herein.Therefore, the embodiment of the invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an equalizer circuit is characterized in that, comprising: first electric capacity, second electric capacity, first switching tube, second switch pipe, first resistance, first winding and second winding;
The appearance value of described first electric capacity and second electric capacity is identical, and the voltage on first winding and second winding respectively is half of busbar voltage;
The two ends of first electric capacity connect first node and Section Point respectively; The two ends of second electric capacity connect Section Point and the 3rd node respectively;
The different name end of first winding connects first node, and the end of the same name of first winding connects the 4th node by first switching tube;
The different name end of second winding connects the 4th node, and the end of the same name of second winding connects the 3rd node by the second switch pipe;
The two ends of first resistance connect Section Point and the 4th node respectively;
Voltage between first node and the 3rd node is busbar voltage.
2. equalizer circuit according to claim 1 is characterized in that, described first switching tube and second switch pipe are metal-oxide-semiconductor, transistor or IGBT pipe.
3. equalizer circuit according to claim 2 is characterized in that, described first switching tube and second switch pipe are NPN transistor;
The collector electrode of described first switching tube connects the end of the same name of first winding, and the emitter of first switching tube connects the 4th node;
The collector electrode of described second switch pipe connects the end of the same name of second winding, and the emitter of second switch pipe connects the 3rd node.
4. according to each described equalizer circuit of claim 1-3, it is characterized in that, also comprise the bi-directional voltage stabilizing pipe;
Described bi-directional voltage stabilizing pipe be connected between Section Point and the 4th node after described first resistance is connected.
5. an inverter is characterized in that, comprises each described equalizer circuit of claim 1-4, described first switching tube in the equalizer circuit and the switching tube in the second switch pipe supply convertor.
6. an equalizer circuit is characterized in that, comprising: first electric capacity, second electric capacity, first switching tube, second switch pipe, the 3rd switching tube, first diode, second diode, first resistance, first winding and second winding;
The appearance value of described first electric capacity and second electric capacity is identical, and the voltage on first winding and second winding respectively is half of busbar voltage; The two ends of first electric capacity connect first node and Section Point respectively; The two ends of second electric capacity connect Section Point and the 3rd node respectively;
Be connected in Section Point and the 4th node after first resistance and first switching tube and the series connection of second switch pipe;
First diode and the first switching tube inverse parallel, second diode and the inverse parallel of second switch pipe;
Be connected described first node and the 4th node after the 3rd switching tube and first windings in series;
Perhaps,
Be connected described the 4th node and the 3rd node after the 3rd switching tube and second windings in series.
7. equalizer circuit according to claim 6 is characterized in that, described first switching tube and second switch pipe are metal-oxide-semiconductor, transistor or IGBT pipe.
8. equalizer circuit according to claim 6 is characterized in that, described first switching tube and second switch pipe are NPN transistor;
The collector electrode of described first switching tube connects Section Point by first resistance, and the emitter of first switching tube connects the emitter of second switch pipe, and the collector electrode of second switch pipe connects the 4th node;
The anode of first diode connects the emitter of first switching tube, and the negative electrode of first diode connects the collector electrode of first switching tube;
The anode of second diode connects the emitter of second switch pipe, and the negative electrode of second diode connects the collector electrode of second switch pipe.
9. according to each described equalizer circuit of claim 6-8, it is characterized in that, also comprise the bi-directional voltage stabilizing pipe;
Be connected Section Point and the 4th node after described bi-directional voltage stabilizing pipe and described first resistance and first switching tube, the series connection of second switch pipe.
10. an inverter is characterized in that, comprises each described equalizer circuit of claim 6-9, and described the 3rd switching tube in the equalizer circuit is the switching tube in the supply convertor.
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| CN103607121A (en) * | 2013-11-22 | 2014-02-26 | 广州金升阳科技有限公司 | Series circuit of converter |
| CN106026666A (en) * | 2016-06-23 | 2016-10-12 | 广东工业大学 | DC-DC converter |
| CN107482943A (en) * | 2017-07-03 | 2017-12-15 | 中国科学院电工研究所 | A kind of equalizer circuit of multi-level converter DC capacitor group |
| CN109004837A (en) * | 2018-07-13 | 2018-12-14 | 广州金升阳科技有限公司 | High voltage flyback converter |
| CN112202344A (en) * | 2020-12-04 | 2021-01-08 | 深圳市优优绿能电气有限公司 | Bidirectional direct-current converter with wide voltage range and adaptive switching function |
| WO2024087629A1 (en) * | 2022-10-25 | 2024-05-02 | 邯郸美的制冷设备有限公司 | Control method and apparatus for three-phase power supply conversion circuit, device, and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335668A (en) * | 2001-08-24 | 2002-02-13 | 深圳市安圣电气有限公司 | Voltage balancer circuit for power converter |
| JP2004015843A (en) * | 2002-06-03 | 2004-01-15 | Shizuki Electric Co Inc | Voltage-equalizing circuit for electricity-storing element, and voltage-detecting circuit and equalizing charging circuit utilizing the same |
| CN101917122A (en) * | 2010-07-15 | 2010-12-15 | 北京交通大学 | Pressure equalizing module and series-wound super capacitor set provided therewith |
| CN202135056U (en) * | 2011-06-29 | 2012-02-01 | 深圳市核达中远通电源技术有限公司 | Equalization circuit used in power supply converter |
| CN102510114A (en) * | 2011-11-13 | 2012-06-20 | 东华大学 | Four-end type capacitor node voltage balancing module |
-
2013
- 2013-04-17 CN CN201310134357.4A patent/CN103236786B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335668A (en) * | 2001-08-24 | 2002-02-13 | 深圳市安圣电气有限公司 | Voltage balancer circuit for power converter |
| JP2004015843A (en) * | 2002-06-03 | 2004-01-15 | Shizuki Electric Co Inc | Voltage-equalizing circuit for electricity-storing element, and voltage-detecting circuit and equalizing charging circuit utilizing the same |
| CN101917122A (en) * | 2010-07-15 | 2010-12-15 | 北京交通大学 | Pressure equalizing module and series-wound super capacitor set provided therewith |
| CN202135056U (en) * | 2011-06-29 | 2012-02-01 | 深圳市核达中远通电源技术有限公司 | Equalization circuit used in power supply converter |
| CN102510114A (en) * | 2011-11-13 | 2012-06-20 | 东华大学 | Four-end type capacitor node voltage balancing module |
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| CN103607121A (en) * | 2013-11-22 | 2014-02-26 | 广州金升阳科技有限公司 | Series circuit of converter |
| CN106026666A (en) * | 2016-06-23 | 2016-10-12 | 广东工业大学 | DC-DC converter |
| CN107482943A (en) * | 2017-07-03 | 2017-12-15 | 中国科学院电工研究所 | A kind of equalizer circuit of multi-level converter DC capacitor group |
| CN107482943B (en) * | 2017-07-03 | 2019-07-30 | 中国科学院电工研究所 | A kind of equalizer circuit of multi-level converter DC capacitor group |
| CN109004837A (en) * | 2018-07-13 | 2018-12-14 | 广州金升阳科技有限公司 | High voltage flyback converter |
| CN112202344A (en) * | 2020-12-04 | 2021-01-08 | 深圳市优优绿能电气有限公司 | Bidirectional direct-current converter with wide voltage range and adaptive switching function |
| WO2024087629A1 (en) * | 2022-10-25 | 2024-05-02 | 邯郸美的制冷设备有限公司 | Control method and apparatus for three-phase power supply conversion circuit, device, and storage medium |
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