CN202353473U - Combined type converter - Google Patents
Combined type converter Download PDFInfo
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- CN202353473U CN202353473U CN201120520243XU CN201120520243U CN202353473U CN 202353473 U CN202353473 U CN 202353473U CN 201120520243X U CN201120520243X U CN 201120520243XU CN 201120520243 U CN201120520243 U CN 201120520243U CN 202353473 U CN202353473 U CN 202353473U
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Abstract
The utility model discloses a combined type converter. The combined type converter comprises a first converting circuit, a second converting circuit, a first balancing circuit and a second balancing circuit, wherein primary circuits of the first converting circuit and the second converting circuit are connected in series, and secondary circuits of the first converting circuit and the second converting circuit are connected in parallel; an input end of a first primary circuit is connected with a first capacitor in parallel; an input end of a second primary circuit is connected with a second capacitor in parallel; the first balancing circuit is connected with the second balancing circuit in series; an output end anode of the first balancing circuit is connected with an anode of the first capacitor, and an output end cathode of the first balancing circuit is connected with a cathode of the first capacitor; and an output end anode of the second balancing circuit is connected with an anode of the second capacitor, and an output end cathode of the second balancing circuit is connected with a cathode of the second capacitor. The voltage difference value of the two capacitors of primary ends of the combined type converter is small, and the two capacitors work stably, and a metal-oxide-semiconductor field-effect transistor (MOSFET) with low withstand-voltage can be applied to high-voltage input. The combined type converter can be applied to the fields of electric welders, cutting machines, electric power supplies, communication power supplies, electroplating power supplies and the like.
Description
Technical field
The utility model relates to Switching Power Supply, relates in particular to a kind of combined variable parallel operation.
Background technology
The forward conversion circuit is because characteristics such as control is simple, no magnetic bias are widely applied in field of switch power.But owing to receive the restriction of the withstand voltage and conducting resistance of MOSFET, be three phase times at input voltage, cost is very high, and efficient reduces.
In order to address this problem, the structure of existing combined variable parallel operation is shown in Fig. 1 (A) and circuit (B).The combined variable parallel operation comprises two forward conversion circuit, and each forward conversion circuit comprises former limit circuit and secondary circuit, and former limit circuit and secondary circuit are through transformer coupled, and the former limit circuit of two forward conversion circuit is connected, the secondary circuit parallel connection; The input of each former limit circuit is connected to electric capacity.So just can be applied to the low MOSFET of rated voltage in the high-tension circuit and go.But owing to reasons such as device differences, this method often causes the Voltage unbalance of two electric capacity of former end, thereby causes the undesired and device failure of work.Though have document to attempt to address this problem, fail to see basic corrective measure.
Summary of the invention
The technical problem that the utility model will solve provides that the voltage difference of two electric capacity of a kind of former end is less, the combined variable parallel operation of working stability.
In order to solve the problems of the technologies described above; The technical scheme that the utility model adopts is; A kind of combined variable parallel operation; Comprise first translation circuit, second translation circuit, first balancing circuitry and second balancing circuitry, first translation circuit comprises the first former limit circuit and first secondary circuit, and the first former limit circuit and first secondary circuit are transformer coupled through first; Second translation circuit comprises the second former limit circuit and second secondary circuit, and the second former limit circuit and second secondary circuit are transformer coupled through second; The first former limit circuit is connected with the second former limit circuit, and first secondary circuit is parallelly connected with second secondary circuit; The input of the first former limit circuit also is connected to first electric capacity; The input of the second former limit circuit also is connected to second electric capacity; First transformer and second transformer comprise that respectively secondary adds winding; First balancing circuitry comprises the additional winding of the second transformer secondary and second rectification circuit, and second balancing circuitry comprises the additional winding of the first transformer secondary and first rectification circuit; First balancing circuitry is connected with second balancing circuitry, and the positive pole of the first balancing circuitry output connects the positive pole of first electric capacity, and the negative pole of the first balancing circuitry output connects the negative pole of first electric capacity; The positive pole of the second balancing circuitry output connects the positive pole of second electric capacity, and the negative pole of the second balancing circuitry output connects the negative pole of second electric capacity.
Above-described combined variable parallel operation, described translation circuit are double tube positive exciting translation circuit, semi-bridge alternation circuit or full-bridge circuit.
Above-described combined variable parallel operation comprises first resistance, and described first resistance is connected between first balancing circuitry and the second balancing circuitry tie point and first electric capacity and the second electric capacity tie point.
Above-described combined variable parallel operation; Described first rectification circuit and second rectification circuit are full bridge rectifier; The additional winding of the second transformer secondary connects two inputs of the first balancing circuitry full bridge rectifier; The positive pole of the first balancing circuitry full bridge rectifier output connects the positive pole of first electric capacity, and the negative pole of the first balancing circuitry full bridge rectifier output connects the negative pole of first electric capacity; The additional winding of the first transformer secondary connects two inputs of the second balancing circuitry full bridge rectifier; The positive pole of the second balancing circuitry full bridge rectifier output connects the positive pole of second electric capacity, and the negative pole of the second balancing circuitry full bridge rectifier input connects the negative pole of second electric capacity.
Above-described combined variable parallel operation; Described first rectification circuit and second rectification circuit are rectifier diode; The rectifier diode series connection of the additional winding of the second transformer secondary and first balancing circuitry, the rectifier diode series connection of the additional winding of the first transformer secondary and second balancing circuitry.
Above-described combined variable parallel operation, first secondary circuit comprise the secondary winding and first half-wave rectifying circuit of said first transformer, and second secondary circuit comprises the secondary winding and second half-wave rectifying circuit of said second transformer; The output of the secondary winding of input termination first transformer of first half-wave rectifying circuit, the output of the secondary winding of input termination second transformer of second half-wave rectifying circuit; The output of the output of first half-wave rectifying circuit and second half-wave rectifying circuit also connects.
Above-described combined variable parallel operation, first secondary circuit comprise the secondary winding and first full-wave rectifying circuit of said first transformer, and second secondary circuit comprises the secondary winding and second full-wave rectifying circuit of said second transformer; The output of the secondary winding of input termination first transformer of first full-wave rectifying circuit, the output of the secondary winding of input termination second transformer of second full-wave rectifying circuit; The output of the output of first full-wave rectifying circuit and second full-wave rectifying circuit also connects.
Above-described combined variable parallel operation, the first former limit circuit comprises first switching tube, second switch pipe, first diode and second diode, the negative electrode of a termination first diode of first switching tube, the negative electrode of another termination second diode; The anode of one termination, first diode of second switch pipe, the anode of another termination second diode; The anode of one termination, first diode of the former limit of said first transformer winding, the negative electrode of another termination second diode; The negative electrode of first diode connects the positive pole of said first electric capacity, and the anode of second diode connects the negative pole of first electric capacity; The second former limit circuit comprises the 3rd switching tube, the 4th switching tube, the 3rd diode and the 4th diode, the negative electrode of a termination the 3rd diode of the 3rd switching tube, the negative electrode of another termination the 4th diode; The anode of one termination the 3rd diode of the 4th switching tube, the anode of another termination the 4th diode; The anode of one termination the 3rd diode of the former limit of said second transformer winding, the negative electrode of another termination the 4th diode; The negative electrode of the 3rd diode connects the positive pole of said second electric capacity, and the anode of the 4th diode connects the negative pole of second electric capacity.
Above-described combined variable parallel operation, the first former limit circuit comprises first switching tube, second switch pipe, described first electric capacity comprises first fen electric capacity and second fen electric capacity of serial connection; It is parallelly connected after first switching tube is connected with the second switch pipe with first electric capacity; One termination, first switching tube of the former limit of said first transformer winding and the tie point of second switch pipe, the tie point of first fen electric capacity of another termination and second fen electric capacity; The second former limit circuit comprises the 3rd switching tube, the 4th switching tube, and described second electric capacity comprises the 3rd fen electric capacity and the 4th fen electric capacity of serial connection; It is parallelly connected after the 3rd switching tube is connected with the 4th switching tube with second electric capacity; One termination the 3rd switching tube of the former limit of said second transformer winding and the tie point of the 4th switching tube, the tie point of the 3rd fen electric capacity of another termination and the 4th fen electric capacity.
Above-described combined variable parallel operation; The first former limit circuit comprises first full-bridge circuit of being made up of 4 switching tubes; Two outputs of two terminations, first full-bridge circuit of the former limit of said first transformer winding, the two ends of two input termination first electric capacity of first full-bridge circuit; The second former limit circuit comprises second full-bridge circuit of being made up of 4 switching tubes, two outputs of two terminations, second full-bridge circuit of the former limit of said second transformer winding, the two ends of two input termination second electric capacity of second full-bridge circuit.
Less, the working stability of voltage difference of two electric capacity of the former end of the utility model combined variable parallel operation; And can withstand voltage lower MOSFET be applied in the high pressure input, the utility model can be applied to fields such as electric welding machine, cutting machine, electric supply, communication power supply, electroplating power supply, electric vehicle charging power supply.
[description of drawings]
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 (A) is one of prior art combined variable parallel operation schematic diagram.
Fig. 1 (B) is two of a prior art combined variable parallel operation schematic diagram.
Fig. 2 (A) is the utility model combined variable parallel operation embodiment 1 schematic diagram.
Fig. 2 (B) is the utility model combined variable parallel operation embodiment 2 schematic diagrams.
Fig. 3 (A) is the utility model combined variable parallel operation embodiment 3 schematic diagrams.
Fig. 3 (B) is the utility model combined variable parallel operation embodiment 4 schematic diagrams.
Fig. 4 is the utility model combined variable parallel operation embodiment 5 schematic diagrams.
Fig. 5 is the utility model combined variable parallel operation embodiment 6 schematic diagrams.
[embodiment]
Below the utility model among each embodiment; The combined variable parallel operation comprises first translation circuit, second translation circuit, first balancing circuitry and second balancing circuitry; First translation circuit comprises the first former limit circuit and first secondary circuit, and the first former limit circuit and first secondary circuit are through first transformer TR1 coupling; Second translation circuit comprises the second former limit circuit and second secondary circuit, and the second former limit circuit and second secondary circuit are through second transformer TR2 coupling; The first former limit circuit is connected with the second former limit circuit, and first secondary circuit is parallelly connected with second secondary circuit; The input of the first former limit circuit also is connected to first capacitor C 1; The input of the second former limit circuit also is connected to second capacitor C 2; The first transformer TR1 and the second transformer TR2 comprise that respectively secondary adds winding; First balancing circuitry comprises the additional winding TR2C of the second transformer secondary and second rectification circuit, and second balancing circuitry comprises the additional winding TR1C of the first transformer secondary and first rectification circuit; First balancing circuitry is connected with second balancing circuitry, and the positive pole of the first balancing circuitry output connects the positive pole of first capacitor C 1, and the negative pole of the first balancing circuitry output connects the negative pole of first capacitor C 1; The positive pole of the second balancing circuitry output connects the positive pole of second capacitor C 2, and the negative pole of the second balancing circuitry output connects the negative pole of second capacitor C 2.
First resistance R 1 is connected between the tie point of tie point and first capacitor C 1 and second capacitor C 2 of first balancing circuitry and second balancing circuitry.
Translation circuit can be double tube positive exciting translation circuit, semi-bridge alternation circuit or full-bridge circuit.
In the utility model embodiment 1 shown in Fig. 2 (A); Translation circuit is the double tube positive exciting translation circuit; The first former limit circuit comprises the first switching tube Q1, second switch pipe Q2, the first diode D1 and the second diode D2; The negative electrode of a termination first diode D1 of the first switching tube Q1, the negative electrode of another termination second diode D2; The anode of a termination first diode D1 of second switch pipe Q2, the anode of another termination second diode D2; The anode of a termination first diode D1 of the former limit of first transformer winding TR1A, the negative electrode of another termination second diode D2; The negative electrode of the first diode D1 connects the positive pole of first capacitor C 1, and the anode of the second diode D2 connects the negative pole of first capacitor C 1; The second former limit circuit comprises the 3rd switching tube Q3, the 4th switching tube Q4, the 3rd diode D3 and the 4th diode D4, the negative electrode of a termination the 3rd diode D3 of the 3rd switching tube Q3, the negative electrode of another termination the 4th diode D4; The anode of a termination the 3rd diode D3 of the 4th switching tube Q4, the anode of another termination the 4th diode D4; The anode of a termination the 3rd diode D3 of the former limit of second transformer winding TR2A, the negative electrode of another termination the 4th diode D4; The negative electrode of the 3rd diode D3 connects the positive pole of second capacitor C 2, and the anode of the 4th diode D4 connects the negative pole of second capacitor C 2.
First rectification circuit and second rectification circuit are respectively rectifier diode D9 and D10; The rectifier diode D9 series connection of the additional winding TR2C of the second transformer secondary and first balancing circuitry, the rectifier diode D10 series connection of the additional winding TR1C of the first transformer secondary and second balancing circuitry.
First secondary circuit comprises the first transformer secondary winding TR1B, rectifier diode D5, sustained diode 6 and filter inductance L1, and rectifier diode D5 constitutes first half-wave rectifying circuit; Second secondary circuit comprises the second transformer secondary winding TR2B, rectifier diode D7, sustained diode 8 and filter inductance L2, and rectifier diode D7 constitutes second half-wave rectifying circuit; The input termination first transformer secondary winding TR1B of first half-wave rectifying circuit, the input termination two transformer secondary winding TR2B of second half-wave rectifying circuit; The output of the output of first half-wave rectifying circuit and second half-wave rectifying circuit and filter capacitor C3 also connect.
The utility model embodiment 1 is at the additional winding of secondary of the last increase of main transformer TR1, the TR2 of two alternations.And additional winding carried out rectification.Receive down the additional winding of the transformer TR1 that sets out on a journey on the capacitor C 2 on road through the voltage behind the over commutation.Receive the voltage after the additional winding rectification of following road transformer TR2 on the capacitor C 1 of setting out on a journey.Up and down two converter alternations among the figure, each time of 50% of working.If capacitor C 1, the last Voltage unbalance of C2 for example, are worked as VC1>VC2, when switching tube Q1, Q2 conducting, the voltage of on TR1C, responding to can surpass VC2, D10 conducting at this moment, thereby the voltage on the C1 passes through TR1A---TR1C---, and D10 charges to C2.Upward voltage drop is low to make C1, and the last voltage of C2 rises.Work as VC1>VC2, end at switching tube Q1, Q2, when switching tube Q3, Q4 conducting, be lower than the voltage on the C1, so not conducting of D9 at the voltage of responding on the TR2C.Thereby C2 can not charge to C1 through TR2C.Go round and begin again like this, just make voltage VC1 on the C1 level off to the voltage VC2 on the C2, played the effect of the last voltage of balance C1, C2.Also just guarantee that switching tube Q1, Q2 can not damage because of overvoltage.Otherwise, if VC2>and VC1, equilibrium process also is similar.
The utility model embodiment 2 shown in Fig. 2 (B) only is to have reduced sustained diode 8 and filter inductance L2 with the difference of embodiment 1, and the shared sustained diode 6 of first half-wave rectifying circuit and second half-wave rectifying circuit is carried out afterflow and filtering with filter inductance L1.
The utility model combined variable parallel operation embodiment 3 shown in Fig. 3 (A) is with the difference of embodiment 1; First rectification circuit and second rectification circuit are respectively 4 rectifier diode D9-D12,4 full bridge rectifiers that rectifier diode D13-D16 forms; The additional winding TR2C of the second transformer secondary is connected between two inputs of the full bridge rectifier that D9-D12 forms, the two poles of the earth of two output termination first capacitor C 1 of the full bridge rectifier that D9-D12 forms; The additional winding TR1C of the first transformer secondary is connected between two inputs of the full bridge rectifier that D13-D16 forms, the two poles of the earth of two output termination second capacitor C 2 of the full bridge rectifier that D13-D16 forms.
The utility model combined variable parallel operation embodiment 4 shown in Fig. 3 (B) is with the difference of embodiment 3; Reduced sustained diode 8 and filter inductance L2, the shared sustained diode 6 of first half-wave rectifying circuit and second half-wave rectifying circuit is carried out afterflow and filtering with filter inductance L1.
In order to prevent that before circuit working capacitor C 1, C2 have certain pressure reduction, switching tube Q1, Q2 (or Q3, Q4) give C1 (or C2) charging current excessive during conducting, cause the damage of switching tube Q1, Q2 (or Q3, Q4).In embodiment 1-4, first resistance R 1 is connected between the tie point of tie point and first capacitor C 1 and second capacitor C 2 of first balancing circuitry and second balancing circuitry.
The utility model combined variable parallel operation embodiment 5 shown in Figure 4 is with the difference of embodiment 3; Translation circuit is a full-bridge circuit; The first former limit circuit comprises first full-bridge circuit of being made up of 4 switching tube Q1-Q4; The output of two terminations, first full-bridge circuit of the former limit of first transformer winding TR1A, the two ends of input termination first capacitor C 1 of first full-bridge circuit; The second former limit circuit comprises second full-bridge circuit of being made up of 4 switching tube Q5-Q8, the output of two terminations, second full-bridge circuit of the former limit of second transformer winding TR2A, the two ends of input termination second capacitor C 2 of second full-bridge circuit.
In addition, embodiment 5 is also that with the difference of embodiment 3 secondary circuit is different.In embodiment 5; First secondary circuit comprises with the centre tapped first transformer secondary winding TR1B and first full-wave rectifying circuit be made up of rectifier diode D5, D6, and second secondary circuit comprises with the centre tapped second transformer secondary winding TR2B and second full-wave rectifying circuit be made up of rectifier diode D7, D8; The input termination first transformer secondary winding TR1B of first full-wave rectifying circuit, the input termination second transformer secondary winding TR2B of second full-wave rectifying circuit; The output of the output of first full-wave rectifying circuit and second full-wave rectifying circuit also connects.
The utility model combined variable parallel operation embodiment 6 shown in Figure 5 is that with the difference of embodiment 5 translation circuit is the semi-bridge alternation circuit, and the first former limit circuit comprises the first switching tube Q1, second switch pipe Q2.First electric capacity is made up of first fen capacitor C 5 and second fen capacitor C 6 of serial connection; It is parallelly connected after the first switching tube Q1 connects with second switch pipe Q2 with first electric capacity; The a termination first switching tube Q1 of the former limit of first transformer winding TR1A and the tie point of second switch pipe Q2, the tie point of first fen capacitor C 5 of another termination and second fen capacitor C 6; The second former limit circuit comprises the 3rd switching tube Q3, the 4th switching tube Q4, and second electric capacity is made up of the 3rd fen capacitor C 7 and the 4th fen capacitor C 8 of serial connection; It is parallelly connected after the 3rd switching tube Q3 connects with the 4th switching tube Q4 with second electric capacity; A termination the 3rd switching tube Q3 of the former limit of second transformer winding TR2A and the tie point of the 4th switching tube Q4, the tie point of the 3rd fen capacitor C 7 of another termination and the 4th fen capacitor C 8.Secondary circuit is identical with embodiment 5.
The three-phase 380V that the above embodiment of the present invention successfully is used for the applicant's research and development imports, is output as among the rectifier power source of 40V-60V, 100A-150A.This power supply can be used for fields such as electric welding machine, cutting machine, electric supply, communication power supply, electroplating power supply, electric vehicle charging power supply.Effect is can the MOSFET of withstand voltage 500V be applied in fully in the high pressure input.Actual result shows.Capacitor C 1, the last voltage difference of C2 can be less than 5 volts.
Claims (10)
1. a combined variable parallel operation comprises first translation circuit and second translation circuit, and first translation circuit comprises the first former limit circuit and first secondary circuit, and the first former limit circuit and first secondary circuit are transformer coupled through first; Second translation circuit comprises the second former limit circuit and second secondary circuit, and the second former limit circuit and second secondary circuit are transformer coupled through second; The first former limit circuit is connected with the second former limit circuit, and first secondary circuit is parallelly connected with second secondary circuit; The input of the first former limit circuit also is connected to first electric capacity; The input of the second former limit circuit also is connected to second electric capacity; It is characterized in that comprise first balancing circuitry and second balancing circuitry, first transformer and second transformer comprise that respectively secondary adds winding; First balancing circuitry comprises the additional winding of the second transformer secondary and second rectification circuit, and second balancing circuitry comprises the additional winding of the first transformer secondary and first rectification circuit; First balancing circuitry is connected with second balancing circuitry, and the positive pole of the first balancing circuitry output connects the positive pole of first electric capacity, and the negative pole of the first balancing circuitry output connects the negative pole of first electric capacity; The positive pole of the second balancing circuitry output connects the positive pole of second electric capacity, and the negative pole of the second balancing circuitry output connects the negative pole of second electric capacity.
2. combined variable parallel operation according to claim 1 is characterized in that, described translation circuit is double tube positive exciting translation circuit, semi-bridge alternation circuit or full-bridge circuit.
3. combined variable parallel operation according to claim 1 is characterized in that, comprises first resistance, and described first resistance is connected between first balancing circuitry and the second balancing circuitry tie point and first electric capacity and the second electric capacity tie point.
4. combined variable parallel operation according to claim 1; It is characterized in that; Described first rectification circuit and second rectification circuit are full bridge rectifier; The additional winding of the second transformer secondary connects two inputs of the first balancing circuitry full bridge rectifier, and the positive pole of the first balancing circuitry full bridge rectifier output connects the positive pole of first electric capacity, and the negative pole of the first balancing circuitry full bridge rectifier output connects the negative pole of first electric capacity; The additional winding of the first transformer secondary connects two inputs of the second balancing circuitry full bridge rectifier; The positive pole of the second balancing circuitry full bridge rectifier output connects the positive pole of second electric capacity, and the negative pole of the second balancing circuitry full bridge rectifier input connects the negative pole of second electric capacity.
5. combined variable parallel operation according to claim 1; It is characterized in that; Described first rectification circuit and second rectification circuit are rectifier diode; The rectifier diode series connection of the additional winding of the second transformer secondary and first balancing circuitry, the rectifier diode series connection of the additional winding of the first transformer secondary and second balancing circuitry.
6. combined variable parallel operation according to claim 1; It is characterized in that; First secondary circuit comprises the secondary winding and first half-wave rectifying circuit of said first transformer, and second secondary circuit comprises the secondary winding and second half-wave rectifying circuit of said second transformer; The output of the secondary winding of input termination first transformer of first half-wave rectifying circuit, the output of the secondary winding of input termination second transformer of second half-wave rectifying circuit; The output of the output of first half-wave rectifying circuit and second half-wave rectifying circuit also connects.
7. combined variable parallel operation according to claim 1; It is characterized in that; First secondary circuit comprises the secondary winding and first full-wave rectifying circuit of said first transformer, and second secondary circuit comprises the secondary winding and second full-wave rectifying circuit of said second transformer; The output of the secondary winding of input termination first transformer of first full-wave rectifying circuit, the output of the secondary winding of input termination second transformer of second full-wave rectifying circuit; The output of the output of first full-wave rectifying circuit and second full-wave rectifying circuit also connects.
8. combined variable parallel operation according to claim 1; It is characterized in that; The first former limit circuit comprises first switching tube, second switch pipe, first diode and second diode, the negative electrode of a termination first diode of first switching tube, the negative electrode of another termination second diode; The anode of one termination, first diode of second switch pipe, the anode of another termination second diode; The anode of one termination, first diode of the former limit of said first transformer winding, the negative electrode of another termination second diode; The negative electrode of first diode connects the positive pole of said first electric capacity, and the anode of second diode connects the negative pole of first electric capacity; The second former limit circuit comprises the 3rd switching tube, the 4th switching tube, the 3rd diode and the 4th diode, the negative electrode of a termination the 3rd diode of the 3rd switching tube, the negative electrode of another termination the 4th diode; The anode of one termination the 3rd diode of the 4th switching tube, the anode of another termination the 4th diode; The anode of one termination the 3rd diode of the former limit of said second transformer winding, the negative electrode of another termination the 4th diode; The negative electrode of the 3rd diode connects the positive pole of said second electric capacity, and the anode of the 4th diode connects the negative pole of second electric capacity.
9. combined variable parallel operation according to claim 1 is characterized in that, the first former limit circuit comprises first switching tube, second switch pipe, and described first electric capacity comprises first fen electric capacity and second fen electric capacity of serial connection; It is parallelly connected after first switching tube is connected with the second switch pipe with first electric capacity; One termination, first switching tube of the former limit of said first transformer winding and the tie point of second switch pipe, the tie point of first fen electric capacity of another termination and second fen electric capacity; The second former limit circuit comprises the 3rd switching tube, the 4th switching tube, and described second electric capacity comprises the 3rd fen electric capacity and the 4th fen electric capacity of serial connection; It is parallelly connected after the 3rd switching tube is connected with the 4th switching tube with second electric capacity; One termination the 3rd switching tube of the former limit of said second transformer winding and the tie point of the 4th switching tube, the tie point of the 3rd fen electric capacity of another termination and the 4th fen electric capacity.
10. combined variable parallel operation according to claim 1; It is characterized in that; The first former limit circuit comprises first full-bridge circuit of being made up of 4 switching tubes; Two outputs of two terminations, first full-bridge circuit of the former limit of said first transformer winding, the two ends of two input termination first electric capacity of first full-bridge circuit; The second former limit circuit comprises second full-bridge circuit of being made up of 4 switching tubes, two outputs of two terminations, second full-bridge circuit of the former limit of said second transformer winding, the two ends of two input termination second electric capacity of second full-bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120520243XU CN202353473U (en) | 2011-12-14 | 2011-12-14 | Combined type converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120520243XU CN202353473U (en) | 2011-12-14 | 2011-12-14 | Combined type converter |
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| CN202353473U true CN202353473U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120520243XU Expired - Fee Related CN202353473U (en) | 2011-12-14 | 2011-12-14 | Combined type converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762872A (en) * | 2014-01-28 | 2014-04-30 | 华南理工大学 | Three-energy-storage-capacitor dual-output Z source half-bridge converter |
-
2011
- 2011-12-14 CN CN201120520243XU patent/CN202353473U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762872A (en) * | 2014-01-28 | 2014-04-30 | 华南理工大学 | Three-energy-storage-capacitor dual-output Z source half-bridge converter |
| CN103762872B (en) * | 2014-01-28 | 2016-06-22 | 华南理工大学 | A kind of three storage capacitor dual output Z source half-bridge converters |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171214 |