CN200983554Y - A high-gain separated active clamp voltage-elevation converter - Google Patents
A high-gain separated active clamp voltage-elevation converter Download PDFInfo
- Publication number
- CN200983554Y CN200983554Y CN 200620140967 CN200620140967U CN200983554Y CN 200983554 Y CN200983554 Y CN 200983554Y CN 200620140967 CN200620140967 CN 200620140967 CN 200620140967 U CN200620140967 U CN 200620140967U CN 200983554 Y CN200983554 Y CN 200983554Y
- Authority
- CN
- China
- Prior art keywords
- links
- power switch
- winding
- coupling inductance
- switching tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a high gain isolated-type source clamp pressure-rise converter, which includes two power switching tubes, two after flow diodes, two output capacities and two coupling inductances, each of the coupling inductances has three windings. The utility model realizes a high gain output of the converter by using a third winding of the two coupling inductance and the output capacity series, two coupling inductance leakage inductance energy is absorbed and transmitted without loss by using a first auxiliary switching tube and a first clamp electric capacity series circuit, and also the first and second power switching tube zero voltage open is realized, further the first and second power switching tube zero shutdown is realized by using the first and second power switching tube parallel capacitance, the first auxiliary switching tube zero open and the zero voltage shutdown are realized by using the first and second power switching tube and the arrangement of the gate pole of the first auxiliary switching tube, thereby the attachments are fewer, the structure is simple, non-energy loss elements in the electric circuit, and raising the output gain and the circuit efficiency of the converter.
Description
Technical field
The utility model relates to DC-to-DC converter, is high gain isolating active clamping boost transducer specifically.
Background technology
Conventional flyback (Flyback) crisscross parallel DC-to-DC converter, comprise two coupling inductances, two fly-wheel diodes, two power switch pipes, an output capacitance, the drain electrode of first power switch pipe links to each other with an end of first winding of first coupling inductance, the drain electrode of second power switch pipe links to each other with an end of first winding of second coupling inductance, the other end of first winding of first coupling inductance links to each other with the other end of first winding of second coupling inductance, one end of second winding of first coupling inductance links to each other with the anode of first diode, one end of second winding of second coupling inductance links to each other with the anode of second diode, the negative electrode of first diode links to each other with the negative electrode of second diode and an end of first output capacitance, and the other end of second winding of first coupling inductance links to each other with the other end of second winding of second coupling inductance and the other end of first input capacitance.This flyback crisscross parallel DC-to-DC converter is hard switching work, switching loss is big, can realize that the wide region of input voltage is regulated, but output voltage gain is big inadequately, leakage inductance energy causes the due to voltage spikes of first power switch pipe, second power switch pipe, and efficient is lower.In recent years, some isolated form high gain boost type topologys have been studied in succession, wherein a kind of topology is on the basis of current mode bridge circuit, the series circuit that increase is made up of auxiliary power switching tube and electric capacity is realized the soft switch of power switch pipe, but the power switch pipe quantity that should topology needs is many, and the current stress of power switch pipe is bigger, and another kind is the resonant mode transformation topology, this topology can realize soft switch, but the electric current that flows through resonant capacitance is very big.
Summary of the invention
It is few that the purpose of this utility model provides power switch pipe quantity, simple in structure, and cost is low, and the high gain isolating active clamping boost transducer of noenergy loss.
Technical solution of the present utility model is, high gain isolating active clamping boost transducer comprises two power switch pipes, two fly-wheel diodes, two output capacitances and two coupling inductances, first coupling inductance and second coupling inductance have three windings respectively, the drain electrode of first power switch pipe links to each other with an end of first winding of first coupling inductance, the source electrode of first power switch pipe links to each other with an end of first winding of second coupling inductance, the source electrode of second power switch pipe links to each other with the other end of first winding of second coupling inductance, the drain electrode of second power switch pipe links to each other with the other end of first winding of first coupling inductance, one end of second winding of first coupling inductance links to each other with an end of the tertiary winding of second coupling inductance, the other end of second winding of first coupling inductance links to each other with the negative terminal of the negative electrode of second fly-wheel diode and first output capacitance and the anode of second output capacitance, one end of second winding of second coupling inductance links to each other with an end of the tertiary winding of first coupling inductance, the other end of second winding of second coupling inductance links to each other with the negative terminal of second output capacitance, the other end of the tertiary winding of first coupling inductance links to each other with the anode of second fly-wheel diode, the other end of the tertiary winding of second coupling inductance links to each other with the anode of first fly-wheel diode, the negative electrode of first fly-wheel diode links to each other with the anode of first output capacitance, between the drain electrode of the source electrode of second power switch pipe and first power switch pipe, seal in the series circuit of forming by the first auxiliary power switching tube and first clamping capacitance, and the drain electrode of first auxiliary switch links to each other with the source electrode of second power switch pipe, the source electrode of first auxiliary switch links to each other with an end of first clamping capacitance, and the other end of first clamping capacitance links to each other with the drain electrode of first power switch pipe.
During work, utilize the tertiary winding of two coupling inductances to realize the high-gain of circuit, first output capacitance and connecting of second output capacitance have further been expanded the output voltage gain of circuit; Because first power switch pipe leaks, shunt capacitance, second power switch pipe between source electrode leak, the existence of the shunt capacitance between source electrode, realized that the no-voltage of first power switch pipe, second power switch pipe is turn-offed; First clamping capacitance is collected the leakage inductance energy of first coupling inductance, second coupling inductance, and finally transfers to input, has realized the harmless absorption of clamp circuit.In whole switch periods,, can make first, second power switch pipe, first auxiliary switch realization no-voltage open with no-voltage and turn-off by controlling the gate pulse of first power switch pipe, second power switch pipe, first auxiliary switch.
High gain isolating active clamping boost transducer of the present utility model, utilize the series connection of the tertiary winding of two coupling inductances and output capacitance to realize the high-gain output of converter, absorption that the series circuit that utilizes first auxiliary switch and first clamping capacitance to form can't harm and the leakage inductance energy that has shifted two coupling inductances, and realized first, the no-voltage of second power switch pipe is open-minded, utilize first, the shunt capacitance of second power switch pipe has realized first, the no-voltage of second power switch pipe is turn-offed, utilize first, the gate pole arrangement of second power switch pipe and first auxiliary switch, the no-voltage that has realized first auxiliary switch is opened with no-voltage and is turn-offed, need not extra inductance element, thereby add ons is few, simple in structure, cost is low, need not extra testing circuit, noenergy losser in the circuit, can improve the output gain and the circuit efficiency of converter, and in the commutation course, no-voltage overshoot when power switch pipe turn-offs, no current overshoot when fly-wheel diode turn-offs.
Description of drawings
Fig. 1 is the circuit diagram of high gain isolating active clamping boost transducer.
Embodiment
Referring to Fig. 1, high gain isolating active clamping boost transducer of the present utility model, comprise two power switch tube S 1, S2, two sustained diode 1, D2, two output capacitance Co1, Co2 and two coupling inductances, first coupling inductance has three winding L 1a, L1b, L1c, second coupling inductance has three winding L 2a, L2b, L2c, the drain electrode of first power switch tube S 1 links to each other with the end of the first winding L 1a of first coupling inductance, the source electrode of first power switch tube S 1 links to each other with the end of the first winding L 2a of second coupling inductance, the source electrode of second power switch tube S 2 links to each other with the other end of the first winding L 2a of second coupling inductance, the drain electrode of second power switch tube S 2 links to each other with the other end of the first winding L 1a of first coupling inductance, the end of the second winding L 1b of first coupling inductance links to each other with the end of the tertiary winding L2c of second coupling inductance, the other end of the second winding L 1b of first coupling inductance links to each other with the negative terminal of the negative electrode of second sustained diode 2 and the first output capacitance Co1 and the anode of the second output capacitance Co2, the end of the second winding L 2b of second coupling inductance links to each other with the end of the tertiary winding L1c of first coupling inductance, the other end of the second winding L 2b of second coupling inductance links to each other with the negative terminal of the second output capacitance Co2, the other end of the tertiary winding L1c of first coupling inductance links to each other with the anode of second sustained diode 2, the other end of the tertiary winding L2c of second coupling inductance links to each other with the anode of first sustained diode 1, the negative electrode of first sustained diode 1 links to each other with the anode of the first output capacitance Co1, between the drain electrode of the source electrode of second power switch tube S 2 and first power switch tube S 1, seal in the series circuit of forming by the first auxiliary power switching tube Sc and the first clamping capacitance Cc, and the drain electrode of the first auxiliary switch Sc links to each other with the source electrode of second power switch tube S 2, the source electrode of the first auxiliary switch Sc links to each other with the end of the first clamping capacitance Cc, and the other end of the first clamping capacitance Cc links to each other with the drain electrode of first power switch tube S 1.
There are four kinds of change of current situations in high gain isolating active clamping boost transducer, the change of current between the change of current between promptly 1 shutoff of first power switch tube S and the first auxiliary switch Sc open and first auxiliary switch Sc shutoff and the first switching tube S1 open; The change of current between the change of current between 2 shutoffs of second power switch tube S and the first auxiliary switch Sc open and first auxiliary switch Sc shutoff and second power switch tube S 2 are opened.Because the symmetry of circuit, only the commutation course with first power switch tube S 1 is that example is analyzed as follows:
First power switch tube S 1 is turn-offed the commutation course that the first auxiliary switch Sc opens:
Before the change of current, circuit is in first power switch tube S 1, second power switch tube S 2 is open-minded, the steady-working state that first sustained diode 1, second sustained diode 2 are turn-offed.When first power switch tube S 1 was turn-offed, because the existence of shunt capacitance on first power switch tube S 1, the voltage of first power switch tube S 1 was started from scratch and is risen so that certain slope is linear, and promptly first power switch tube S 1 has realized the no-voltage shutoff.When the voltage of first power switch tube S 1 rises to certain value, diode is open-minded in the body of the first auxiliary switch Sc, the voltage of the first auxiliary switch Sc is zero, the leakage inductance energy of first coupling inductance is transferred on the first clamping capacitance Cc, after diode is opened in the body of the first auxiliary switch Sc, provide the gate signal of the first auxiliary switch Sc, realized that the no-voltage of the first auxiliary switch Sc is open-minded.In this process, 1 conducting of first sustained diode, the coupling inductance energy begins to shift to the output of circuit.Afterwards, circuit enters the first power tube S1 and turn-offs, and the first auxiliary switch Sc is open-minded, the steady operational status that first sustained diode 1 is opened.
The first auxiliary switch Sc turn-offs, the commutation course that first power switch tube S 1 is opened:
Before the first auxiliary switch Sc turn-offs, the leakage inductance of first coupling inductance and the first clamping capacitance Cc resonance, first sustained diode 1 is in the stable operation operating state of conducting.When the first auxiliary switch Sc turn-offed, because the existence of shunt capacitance on first power switch tube S 1, the first auxiliary switch Sc voltage was started from scratch and is risen so that certain slope is linear, and promptly the first auxiliary switch Sc has realized that no-voltage is open-minded.Shunt capacitance resonance on the leakage inductance of first coupling inductance and first power switch tube S 1, the shunt capacitance energy shifts to the leakage inductance of first coupling inductance on first power switch tube S 1, the voltage of first power switch tube S 1 begins to descend with certain slope from certain value, when the voltage of first power switch tube S 1 drops to zero, diode is open-minded in the body of first power switch tube S 1, after diode is opened in the body of first power switch tube S 1, provide first power switch tube S, 1 gate signal, realized that the no-voltage of first power switch tube S 1 is open-minded.First sustained diode, 1 electric current begins to descend with certain slope from certain value, and when first sustained diode, 1 electric current dropped to zero, first sustained diode 1 was turn-offed.Like this, the reverse recovery current of first sustained diode 1 is zero, has reduced the reverse recovery loss that first sustained diode 1 is brought greatly.Afterwards, circuit enters 1 conducting of first power switch tube S, the steady operational status that first sustained diode 1 is turn-offed.
Claims (1)
1. high gain isolating active clamping boost transducer, comprise two power switch pipe (S1, S2), two fly-wheel diode (D1, D2), two output capacitance (Co1, Co2) and two coupling inductances, first coupling inductance has three winding (L1a, L1b, L1c), second coupling inductance has three winding (L2a, L2b, L2c), the drain electrode that it is characterized in that first power switch pipe (S1) links to each other with an end of first winding (L1a) of first coupling inductance, the source electrode of first power switch pipe (S1) links to each other with an end of first winding (L2a) of second coupling inductance, the source electrode of second power switch pipe (S2) links to each other with the other end of first winding (L2a) of second coupling inductance, the drain electrode of second power switch pipe (S2) links to each other with the other end of first winding (L1a) of first coupling inductance, one end of second winding (L1b) of first coupling inductance links to each other with an end of the tertiary winding (L2c) of second coupling inductance, the other end of second winding (L1b) of first coupling inductance links to each other with the negative terminal of the negative electrode of second fly-wheel diode (D2) and first output capacitance (Co1) and the anode of second output capacitance (Co2), one end of second winding (L2b) of second coupling inductance links to each other with an end of the tertiary winding (L1c) of first coupling inductance, the other end of second winding (L2b) of second coupling inductance links to each other with the negative terminal of second output capacitance (Co2), the other end of the tertiary winding of first coupling inductance (L1c) links to each other with the anode of second fly-wheel diode (D2), the other end of the tertiary winding of second coupling inductance (L2c) links to each other with the anode of first fly-wheel diode (D1), the negative electrode of first fly-wheel diode (D1) links to each other with the anode of first output capacitance (Co1), between the drain electrode of the source electrode of second power switch pipe (S2) and first power switch pipe (S1), seal in the series circuit of forming by the first auxiliary power switching tube (Sc) and first clamping capacitance (Cc), and the drain electrode of first auxiliary switch (Sc) links to each other with the source electrode of second power switch pipe (S2), the source electrode of first auxiliary switch (Sc) links to each other with an end of first clamping capacitance (Cc), and the other end of first clamping capacitance (Cc) links to each other with the drain electrode of first power switch pipe (S1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140967 CN200983554Y (en) | 2006-12-12 | 2006-12-12 | A high-gain separated active clamp voltage-elevation converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140967 CN200983554Y (en) | 2006-12-12 | 2006-12-12 | A high-gain separated active clamp voltage-elevation converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983554Y true CN200983554Y (en) | 2007-11-28 |
Family
ID=38910704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140967 Expired - Fee Related CN200983554Y (en) | 2006-12-12 | 2006-12-12 | A high-gain separated active clamp voltage-elevation converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200983554Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108475991A (en) * | 2015-10-16 | 2018-08-31 | 维洛发动机控制系统 | Isolated DC-DC converter |
-
2006
- 2006-12-12 CN CN 200620140967 patent/CN200983554Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108475991A (en) * | 2015-10-16 | 2018-08-31 | 维洛发动机控制系统 | Isolated DC-DC converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100446390C (en) | Active clamp zero voltage soft switch high gain booster staggered parallel converter | |
| CN100499337C (en) | High gain isolating active clamping boost transducer | |
| CN100581033C (en) | Active-clamp high-gain alternation and parallel connection boosting converter | |
| CN2706955Y (en) | Boost type active staggered parallel soft switch DC-DC converter | |
| CN100334797C (en) | Boost type active interlaced parallel soft switch circuit | |
| CN101510726B (en) | Passive clamping voltage boosting type interleave parallel connection converter implemented by coupling inductance and switch capacitance | |
| CN201383753Y (en) | Pressure raising type staggered parallel connection convertor realizing inactive clamping through coupling inductance added with switching capacity | |
| CN202424533U (en) | Wide-region high-voltage output converter | |
| CN101247085B (en) | Passive-clamp alternation and parallel connection boosting converter | |
| CN105743344A (en) | Isolated three-level bidirectional DC-DC converter with coupling inductor | |
| CN101355309A (en) | Seclusion type interleaving parallel connection DC/DC converter with switch capacitance | |
| CN100403637C (en) | Passive clamping soft switch high gain boost interleaved parallel converter | |
| CN101604916B (en) | Zero voltage switch full bridge DC converter based on pi-type auxiliary network | |
| CN103457460A (en) | High-gain boost converter based on coupling inductance and voltage transfer technology | |
| CN103595258A (en) | Boost type soft switching resonant converter and frequency fixing control method thereof | |
| CN201018410Y (en) | Active clamp zero voltage soft switch high-gain boost type interleaving parallel convertor | |
| CN104638932A (en) | Multi-resonant converter | |
| CN100553093C (en) | Active clamping stagger parallel connection voltage boosting-type converter | |
| CN100358227C (en) | Zero voltage switch three lever double tube positive exciting DC converter with clamp diode | |
| CN203434860U (en) | High-gain boost converter based on coupling inductor and voltage transfer technology | |
| CN100563087C (en) | A kind of isolation type active clamping alternation parallel DC/DC converter | |
| CN100379131C (en) | Three-level output soft-switch isolated DC converter | |
| CN101325368B (en) | Alternation parallel voltage-releasing type convertor implemented by three-winding coupling inductance | |
| CN101252319A (en) | Isolated active clamping stagger parallel connection voltage boosting-type converter | |
| CN201167287Y (en) | Active clamping high-gain interleaving parallel-connection voltage-boosting type converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20100112 |