CN1318895A - Double-unit high-performance converter - Google Patents
Double-unit high-performance converter Download PDFInfo
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Abstract
The double-unit high performance converter includes two main power switches, the first inductor, energy storing inductor and the first and the second diode, as well as a subsidiary circuit including five diodes, two inductors, an absorption capacitor and a subsidiary switch. Increasing the subsidiary circuit makes the circuit work in new mode with main power switch tube in soft switching state and possess the advantages of short zero voltage transition period, small conducting loss of the subsidiary switch and high overall conversion efficiency of the converter.
Description
The present invention relates to a kind of double-unit high-performance converter.
For basic boost inverter (as shown in Figure 1), there are conduction loss and switching loss during owing to power switch S and power diode D work, cause conversion efficiency low.In addition, in power switch S opening process, power diode D is in oppositely and returns to form, and this can cause bigger current spike in power switch S and power diode D.Also have, if power switch is MOSFET, then the electric charge that is stored in the parasitic capacitance because of releasing in its opening process produces loss.Along with the increase of frequency, the loss meeting relevant with power diode D with power switch S is linear to increase.Therefore, reduce the loss of boost inverter power switch S and power diode D, can improve the whole efficiency of converter.People have carried out many researchs for this reason, the scheme that proposes as following document: [1] United States Patent (USP), US 0541870405/23/1995 Zero-voltage-transitionpulse-width-modulated converter "; [2] .Henrique A.C.Braga, Ivo Barbi, " A3-kW Unity-Power-Factor Rectifier Based on a Two-Cell Boost ConverterUsing a New Parallel-Connection Technique ", IEEE TRANS.on PowerElectronics, vol, 14.No.1 Jan.1999.; [3]. Chinese patent, CN 95190525.2, " pulse width modulated DC-To-DC boost converter "; [4]. Chinese patent, CN 98113189.1, " a kind of soft switch topology circuit "; [5]. United States Patent (USP), US 5,914,587 22/06/1999 " Circuit forReducing Switching Losses of a Power Converter and Method of OperationThereof ".These schemes all attempt to reduce the loss of power switch S and power diode D, and reach this purpose by an additional auxiliary branch of being made up of auxiliary induction, auxiliary switch etc.Yet all there is same defective in the scheme that document [1] [2] [3] [4] proposes.Be the example explanation with document [1] below.
Document [1] has proposed the processing switching loss problem relevant with switch converters.Document [1] attempts to reduce the loss of the power switch and the power diode of switch converters.Its way is additional one auxiliary branch of being made up of auxiliary induction, auxiliary switch etc.By auxiliary induction, auxiliary switch, come the rate of change of electric current in the power-limiting diode and reduce the turn-on consumption that the power switch both end voltage reduces power switch.Yet, document [1] when solving the turn-on consumption of power switch, the inner contradictions problem when failing to solve converter work.
Contradiction is produced by following reason in design: by the relatively large auxiliary induction that adds, make that the rate of change of electric current reduces in the power diode, thereby reduced the reverse recovery current of power diode.Yet, use relatively large auxiliary induction can cause prolong the release time of power switch two ends electric charge, obtain the time of zero voltage switch (calling ZVS in the following text) thereby in the power switch opening process, prolonged it.For obtaining the time that ZVS prolongs, determined the auxiliary switch ON time, auxiliary switch has produced extra conduction loss like this.When using less relatively auxiliary induction, opposite situation just occurs.At this moment for guaranteeing ZVS, the rate of release of the two ends electric charge of power switch is accelerated, but the degree that reduces of power diode reverse recovery current is restricted, and has produced excess loss in auxiliary switch.Document [1] has been introduced extra loss (as: conduction loss of auxiliary switch Sa) when attempting to obtain ZVS and reducing reverse recovery condition.
Fig. 2 is the ZVT schematic circuit that document [1] proposes.Fig. 2 is the boost type translation circuit, by input voltage source Vin, input inductance L, power switch S, power diode D, output filter capacitor C and the auxiliary branch that is used to reduce switching loss form.Auxiliary branch comprises auxiliary switch Sa, auxiliary induction Lr, absorbs capacitor C r, booster diode Da1, Da2.Usually it is big that input inductance L is bigger than absorption inductor Lr, power switch S bears power than auxiliary switch Sa.S and Sa all turn-off during beginning, and input current Iin is by Lin and D, and then auxiliary switch Sa is open-minded.Because Sa is less, so the turn-on consumption of Sa is less.When the Sa conducting, output voltage V o is added in the Lr two ends, and produces electric current I lr, and the electric current by D is the poor of Iin and Ilr.When Ilr equaled Iin, electric current was zero among the D.Then absorb electric capacity (junction capacitance that comprises S) Cr discharge, Cr both end voltage (being S drain-source both end voltage) is begun to descend by Vo, and the continuation of Ilr increases.When the Cr both end voltage reduced to zero, S changed the ZVS state into, and Sa becomes not on-state.Meanwhile the variation of electric current (di/dt) produces reverse recovery current among the D in D.Because the existence of Lr, make that the electric current rate of change descends among the D, thereby reduced the reverse recovery current among the D.
Some drawbacks limit that Fig. 2 circuit exists its reduce the ability of conduction loss and switching loss.At first, before Cr electric capacity begins discharge, pass through the Iin electric current among the Sa, so Sa bears extra conduction loss.In addition, the climbing speed of Ilr must be moderate, otherwise the reverse recovery current of D can produce extra switching loss in Sa.For satisfying this conditional request, must increase the ON time of Sa again, cause increasing the extra conduction loss of Sa.Like this, in order to reduce the switching loss of power stage, Fig. 2 has introduced the conduction loss of auxiliary switch Sa, and this loss can not reduce.Especially, in order to reduce the conduction loss of Sa, the ON time of Sa must reduce, and must reduce Lr for this reason, and the result can increase the electric current fall off rate of D, has finally increased the reverse recovery current of D.In addition, when the Sa transition was off state, Ilr was born by Da2.Therefore, when Ilr dropped to zero with Vo/Lr speed, Da2 bore reverse recovery current.
At the deficiency of document [1] circuit, document [3] has proposed a kind of new ZVT schematic circuit, as shown in Figure 4.Form by input voltage source Vin, input inductance L, power switch S, power diode D, output filter capacitor C and auxiliary circuit.Auxiliary circuit partly comprises auxiliary switch Sa, blocking diode Da4, inductance L a, absorption inductor Lr, absorbs capacitor C r, booster diode Dal, Da2, Da3.Usually input inductance L (for example 150uH) is big than absorption inductor Lr (for example 10uH) and inductance L a (for example 2uH), and it is little that auxiliary switch Sa bears power than power switch S.
Under the single-phase input condition of electrical network, when inverter power is big (for example about 3kW), generally adopt two or more power switchs, to increase power output, like this, the scheme of document [3] does not just reach requirement.Fig. 3 is a kind of zero voltage transition preferably (ZVT) soft switch topology circuit.As previously mentioned, there is the deficiency of document [1] equally in this topological circuit.
Purpose of the present invention is exactly in order to overcome the above problems, and a kind of double-unit high-performance converter is provided, and realize the soft switch of zero voltage transition of two master power switches, and the auxiliary switch conduction loss is little, converter overall conversion efficiency height.
For achieving the above object, the present invention proposes a kind of double-unit high-performance converter, and additional one comprises auxiliary switch, an auxiliary circuit that absorbs electric capacity, an absorption inductor, an auxiliary induction, a blocking diode Da4, four booster diodes in former basic circuit.According to the difference of basic circuit, it is dissimilar to be divided into boost type, buck and three kinds of lifting/lowering pressure types respectively, as follows respectively:
A kind of double-unit high-performance boost inverter, comprise first master power switch, second master power switch, first inductance, energy storage inductor, first and second diode, the described first master power switch cross-over connection is between the dc bus positive and negative terminal, the second master power switch negative terminal connects the dc bus negative terminal, anode connects the first master power switch anode by first inductance on one side, one edge joint, second diode anode, second diode cathode connects first diode cathode; First diode anode connects the common ends of the energy storage inductor and first inductance; It is characterized in that: also comprise the 11 booster diode, the 12 booster diode, auxiliary induction, second booster diode, the 3rd booster diode, the 4th booster diode, absorb electric capacity, absorption inductor and auxiliary switch; Described auxiliary switch negative terminal connects the dc bus negative terminal, positive termination the 4th booster diode negative electrode, the 4th booster diode anode connects the 3rd booster diode anode, the 3rd booster diode negative electrode connects first diode cathode, the 4th booster diode anode also connects auxiliary induction, the auxiliary induction other end connects first diode cathode by absorbing electric capacity, the common ends that absorbs electric capacity and auxiliary induction connects the 11 diode respectively, the 12 diode cathode, the 11 diode, the 12 diode anode then connects first respectively, the anode of two master power switches, the common ends that absorbs electric capacity and auxiliary induction also connects the second booster diode anode, and the second booster diode negative electrode connects dc bus anode output; Absorption inductor one termination first diode cathode, other end dc bus anode output.
A kind of double-unit high-performance decompression transducer, comprise first master power switch, second master power switch, first inductance, energy storage inductor, first diode anode, described first master power switch is serially connected with the dc bus anode, the second master power switch negative terminal connects the first master power switch negative terminal by first inductance, the positive termination first master power switch anode; The first diode anode negative electrode connects the negative terminal of the energy storage inductor and first master power switch, and the other end of energy storage inductor is a dc bus anode output; It is characterized in that: also comprise the 11 booster diode, the 12 booster diode, auxiliary induction, second booster diode, the 3rd booster diode, the 4th booster diode, absorb electric capacity, absorption inductor and auxiliary switch; Described auxiliary switch one termination first, two master power switches, common ends, another termination the 4th booster diode anode, the 4th booster diode negative electrode connects the 3rd booster diode anode and auxiliary induction, the 3rd booster diode negative electrode connects the anode of the absorption inductor and first diode anode, the auxiliary induction other end connects first diode anode by absorbing electric capacity, the common ends that absorbs electric capacity and auxiliary induction connects the 11 diode anode respectively, the 12 diode anode and the second booster diode negative electrode, the 11 diode, the negative electrode of the 12 diode then connects first respectively, the negative terminal of two master power switches, the second booster diode anode connects the dc bus negative terminal; Absorption inductor one termination first diode anode, other end dc bus negative terminal.
A kind of double-unit high-performance lifting/lowering pressure type converter, comprise first master power switch, second master power switch, first inductance, energy storage inductor, first and second diode, described first master power switch is serially connected with the dc bus anode, the positive termination dc bus of second master power switch anode input, negative terminal connects the first master power switch negative terminal by first inductance on one side, by energy storage inductor connect dc bus negative terminal on one side; First and second diode cathode connects first and second master power switch negative terminal respectively; It is characterized in that: also comprise the 11 booster diode, the 12 booster diode, auxiliary induction, second booster diode, the 3rd booster diode, the 4th booster diode, absorb electric capacity, absorption inductor and auxiliary switch; The positive termination first of described auxiliary switch, two master power switch anodes, negative terminal connects the 4th booster diode anode, the 4th booster diode negative electrode connects the 3rd booster diode negative electrode and auxiliary induction, the 3rd booster diode anode connects first diode anode, the auxiliary induction other end connects first diode anode by absorbing electric capacity, the common ends that absorbs electric capacity and auxiliary induction connects the 11 diode anode respectively, the 12 diode anode and the second booster diode negative electrode, the 11 diode, the 12 diode cathode then connects first respectively, the negative terminal of two master power switches, the second booster diode anode are dc bus anode output; Absorption inductor one termination first diode anode, other end dc bus anode output.
Owing to adopted above scheme,, changed the mode of operation of entire circuit by increasing auxiliary circuit, realized the soft switch of master power switch pipe, have zero voltage transition time weak point simultaneously, the auxiliary switch conduction loss is little, the advantage that the converter overall conversion efficiency is high.
Fig. 1 is basic boost inverter schematic circuit.
Fig. 2 is the ZVT schematic circuit that proposes in the document [1].
Fig. 3 is two unit ZVT schematic circuit in the document [2].
Fig. 4 is the ZVT schematic circuit that proposes in the document [3].
Fig. 5 is a kind of novel pair of unit ZVT boost inverter schematic circuit that this paper proposes.
Fig. 6 a, 6b, 6c, 6d, 6e, 6f, 6g, 6h are eight kinds of mode of operation schematic diagrames in switch periods of Fig. 5 circuit.
Fig. 7 is the main waveform in switch periods of Fig. 5 circuit.
Fig. 8 is the switching power circuit that application drawing 5 constitutes.
Fig. 9 is the application circuit in decompression transducer.
Figure 10 is the application circuit in lifting/lowering pressure type converter.
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Embodiment one, boost type: the soft switch DC-DC converter topological circuit of a kind of boost type ZVT that proposes in this example, basic ideas are on the basis of basic boost type circuit shown in Figure 3, an additional auxiliary circuit, preferably resolve the deficiency of Fig. 3 circuit, realized the soft switch of zero voltage transition (ZVT) of power switch S1, S2.Have the zero voltage transition time short, the auxiliary switch conduction loss is little, the advantage that the converter overall conversion efficiency is high.
Its circuit as shown in Figure 5, it comprises the first master power switch S1, the second master power switch S2, first inductance L 1, energy storage inductor L, first and second diode D1, D2, the described first master power switch S1 cross-over connection is between the dc bus positive and negative terminal, the second master power switch S2 negative terminal connects the dc bus negative terminal, anode connects the first master power switch S1 anode by first inductance L 1 on one side, one edge joint, the second diode D2 anode, the second diode D2 negative electrode connects the first diode D1 negative electrode; The first diode D1 anode connects the common ends of the energy storage inductor L and first inductance L 1; It is characterized in that: also comprise the 11 booster diode Da11, the 12 booster diode Da12, auxiliary induction La, the second booster diode Da2, the 3rd booster diode Da3, the 4th booster diode Da4, absorb capacitor C r, absorption inductor Lr and auxiliary switch Sa; Described auxiliary switch Sa negative terminal connects the dc bus negative terminal, positive termination the 4th booster diode Da4 negative electrode, the 4th booster diode Da4 anode connects the 3rd booster diode Da3 anode, the 3rd booster diode Da3 negative electrode connects the first diode D1 negative electrode, the 4th booster diode Da4 anode also meets auxiliary induction La, the auxiliary induction La other end connects the first diode D1 negative electrode by absorbing capacitor C r, the common ends that absorbs capacitor C r and auxiliary induction La meets the 11 diode Da11 respectively, the 12 diode Da12 negative electrode, the 11 diode Da11, the 12 diode Da12 anode then connects first respectively, two master power switch S1, the anode of S2, the common ends that absorbs capacitor C r and auxiliary induction La also connects the second booster diode Da2 anode, and the second booster diode Da2 negative electrode connects dc bus anode output; The absorption inductor Lr one termination first diode D1 negative electrode, other end dc bus anode output.
This circuit has nine kinds of mode of operations in a switch periods, shown in Fig. 6 a, 6b, 6c, 6d, 6e, 6f, 6g, 6h, Fig. 7 is the main waveform diagram in the switch periods, and division is as follows:
Pattern 1:t＜t1 stage.Power switch S1, S2 and auxiliary switch Sa all turn-off, and electric current flows to load by diode D1, D2.Absorbing capacitor C r both end voltage Vcr is zero, and S1, S2 and Sa drain-source both end voltage Vds (being Vds1, Vds2), Vdsa are converter output voltage V o.Electric current by D1, D2 is equal, and is input current Ii half.Electric current by absorption inductor Lr is Ii.
Pattern 2:[t1 ~ t2] stage.During t=to, auxiliary switch Sa is open-minded, and its Vsa drops to zero, and electric current I sa begins to rise by zero among the auxiliary switch Sa.When the Sa conducting, output voltage V o is added in the La two ends, and produces electric current I la, and the Ila increment is:
ΔIla=(Vo/La)Δt
Meanwhile S1, S2 junction capacitance Cs1, Cs2 produce discharging current, and S1, S2 both end voltage descend.Because the existence of absorption inductor Lr, electric current among the Lr (being that electric current descends among D1, the D1) reduces with following speed:
ΔIlr=-[(Vo-Vds)/Lr]Δt
Because input inductance L is much bigger than absorption inductor Lr and inductance L a, so input inductance electric current I in is at this transitional period substantially constant.Because of Lr is big than La, so electric current changes little than La among the Lr.In case electric current is set up among the auxiliary switch Sa like this, power switch S1, S2 junction capacitance will be discharged immediately.It should be noted that in circuit shown in Figure 2 only when auxiliary switch Sa electric current surpassed input current Ii, the junction capacitance of power switch S just began discharge.
When t=t2, power switch S1, S2 both end voltage Vds drop to when approaching zero, and power switch S1, S2 begin that transition is a conducting state under the ZVS condition.
Mode 3: [t2 ~ t3] stage.During t=t2, separate capacitor C s1, Cs2 discharge off, the Da3 both end voltage is zero.Behind t＞t2, can open S1, S2, the electric current that is caused by junction capacitance discharge is reduced to zero gradually, and the forward increase of starting from scratch.In this stage, the electric current I d among power diode D1, the D2 (being Id1+Id2) descends by following speed:
ΔId=-(Vo/Lr)Δt
This change procedure of electric current can produce reverse recovery current among D1, the D2 on D1, D2, but because the existence of absorption inductor Lr, reverse recovery current can reduce significantly.After opening, S1, S2 can when t=t3, turn-off Sa.
Pattern 4:[t3 ~ t4] stage.Behind t＞t3, electric current I s among S1, the S2 (being Is1, Is2) continues to rise.Because Sa turn-offs, Da3 moment conducting, inductance L a electric current I la reduces, and its energy is transferred to by Da3 and is absorbed on the capacitor C r, and Cr voltage rises.The Ila electric current reduces to zero during to t=t4, and electric current continues to reduce among Lr, D1, the D2.Da3 turn-offs and presents very little reverse recovery loss, and this loss is much smaller than the loss of Dal among Fig. 2.Because its electric current descended with following speed when Da3 turn-offed:
ΔIda3=-(ΔVcr/La)Δt
In following formula, Vcr is more much smaller than Vo usually, and La is than Lr much smaller (be generally its 1/5).Diode two ends electric current fall off rate is more little, and the reverse recovery current of its generation is more little.Like this, there is not the additional absorption electric current at Da3.
Pattern 5:[t4 ~ t5] stage.Electric current I s in this stage S1, S2 (being Is1, Is2) continues to increase;
Electric current continues to reduce among Lr, D1, the D2, and electric current drops to zero during to t=t5.
Pattern 6:[t5 ~ t6] stage.From t=t5, current reversal among Lr, D1, the D2, electric current I s among S1, the S2 (being Is1, Is2) continue to increase, and electric current reaches maximum during to t=t6.
Mode 7: [t6 ~ t7] stage.The complete conducting of S1, S2, identical with common pulse-width modulation (PWM) situation.
Pattern 8:[t7 ~ t8] stage.During t=t7, S1, S2 turn-off, and the electric current among S1, the S2 descends, and both end voltage rises because of junction capacitance is recharged; D1, D2 begin conducting, and the electric current among D1, the D2 increases by zero; Da11, Da12 moment conducting absorb capacitor C r discharge.During t=t8, the Cr discharge off, Da11, Da12 turn-off.Converter ingoing power switch turn-offs running status, and is identical with common pulse-width modulation (PWM) situation.
Also can little electric capacity in parallel at power switch S1, S2 drain-source two ends, can further reduce because of power diode D1, D2 and turn-off the due to voltage spikes that causes.
Fig. 8 is the application circuit of present embodiment in the Switching Power Supply of band power factor correction PFC.
Embodiment two: buck: see Fig. 9, present embodiment shows a kind of double-unit high-performance decompression transducer, comprise the first master power switch S1, the second master power switch S2, first inductance L 1, energy storage inductor L, the first diode D1 anode, the described first master power switch S1 is serially connected with the dc bus anode, the second master power switch S2 negative terminal connects the first master power switch S1 negative terminal by first inductance L 1, the positive termination first master power switch S1 anode; The first diode D1 anode negative electrode connects the negative terminal of the energy storage inductor L and the first master power switch S, and the other end of energy storage inductor L is a dc bus anode output; It is characterized in that: also comprise the 11 booster diode Da11, the 12 booster diode Da12, auxiliary induction La, the second booster diode Da2, the 3rd booster diode Da3, the 4th booster diode Da4, absorb capacitor C r, absorption inductor Lr and auxiliary switch Sa; The positive termination first of described auxiliary switch Sa, two master power switch S1, the common anode of S2, negative terminal connects the 4th booster diode Da4 anode, the 4th booster diode Da4 negative electrode meets the 3rd booster diode Da3 anode and auxiliary induction La, the 3rd booster diode Da3 negative electrode connects the anode of the absorption inductor Lr and the first diode D1, the auxiliary induction La other end connects the first diode D1 anode by absorbing capacitor C r, the common ends that absorbs capacitor C r and auxiliary induction La connects the 11 diode Da11 anode respectively, the 12 diode Da12 anode and the second booster diode Da2 negative electrode, the 11 diode Da11, the negative electrode of the 12 diode Da12 then connects first respectively, two master power switch S1, the negative terminal of S2, the second booster diode Da2 anode connects the dc bus negative terminal; The absorption inductor Lr one termination first diode D1 anode, other end dc bus negative terminal.
Embodiment three: lifting/lowering pressure type: see Figure 10, present embodiment shows a kind of double-unit high-performance lifting/lowering pressure type converter, comprise the first master power switch S1, the second master power switch S2, first inductance L 1, energy storage inductor L, first and second diode D1, D2, the described first master power switch S1 is serially connected with the dc bus anode, negative terminal connects the dc bus negative terminal by energy storage inductor L, the positive termination dc bus of second master power switch S2 anode input, negative terminal connects the first master power switch S1 negative terminal by first inductance L 1; First and second diode D1, D2 negative electrode connect first and second master power switch S1, S2 negative terminal respectively; It is characterized in that: also comprise the 11 booster diode Da11, the 12 booster diode Da12, auxiliary induction La, the second booster diode Da2, the 3rd booster diode Da3, the 4th booster diode Da4, absorb capacitor C r, absorption inductor Lr and auxiliary switch Sa; The positive termination first of described auxiliary switch Sa, two master power switch S1, the S2 anode, negative terminal connects the 4th booster diode Da4 anode, the 4th booster diode Da4 negative electrode meets the 3rd booster diode Da3 negative electrode and auxiliary induction La, the 3rd booster diode Da3 anode connects the first diode D1 anode, the auxiliary induction La other end connects the first diode D1 anode by absorbing capacitor C r, the common ends that absorbs capacitor C r and auxiliary induction La connects the 11 diode Da11 anode respectively, the 12 diode Da12 anode and the second booster diode Da2 negative electrode, the 11 diode Da11, the 12 diode Da12 negative electrode then connects first respectively, two master power switch S1, the negative terminal of S2, the second booster diode Da2 anode is a dc bus anode output; The absorption inductor Lr one termination first diode D1 anode, another termination dc bus anode output.
The principle and the embodiment one of the foregoing description two, three are similar, the Therefore, omited it.
In each example, the first junction capacitance Cs1, the second junction capacitance Cs2 can also be arranged, be parallel to respectively on first and second master power switch S1, the S2; The first inverse parallel diode Ds1, the second inverse parallel diode Ds2 also can be set, be parallel to respectively on first and second master power switch S1, the S2.
In the scheme that this paper proposed, the auxiliary open pipe Sa and the inductance L a that link to each other with power switch have reduced the switching loss of power switch.Because the existence of absorption inductor Lr makes when electric current reduces among power diode D1, the D2 and can not suddenly change, thereby reduced the reverse recovery current of power diode.Absorbing capacitor C r and booster diode Da11, Da12, Da2, Da3 effect mainly is that the energy among inductance L a, the Lr is resetted, and finishes the magnetic balance of inductance in a switch periods, and the energy among inductance L a, the Lr is delivered to the output of converter.This programme has the advantage of several respects: the first, and the time circuit more shown in Figure 2 of finishing the ZVS transition descends about one times (by dropping to about 250ns about 500ns); The second, the peak current of auxiliary switch Sa descends, thereby has obviously reduced the conduction loss of auxiliary switch Sa, therefore, when having reduced the switching loss of inverter power level, only introduced minimum auxiliary switch conduction loss, the whole efficiency of converter is improved.In two cells D C-DC converter applications, has excellent application value.
Claims (5)
1, a kind of double-unit high-performance boost inverter, comprise first master power switch (S1), second master power switch (S2), first inductance (L1), energy storage inductor (L), first and second diode (D1, D2), described first master power switch (S1) cross-over connection is between the dc bus positive and negative terminal, second master power switch (S2) negative terminal connects the dc bus negative terminal, anode connects first master power switch (S1) anode by first inductance (L1) on one side, one edge joint, second diode (D2) anode, second diode (D2) negative electrode connects first diode (D1) negative electrode; First diode (D1) anode connects the common ends of energy storage inductor (L) and first inductance (L1); It is characterized in that: also comprise the 11 booster diode (Da11), the 12 booster diode (Da12), auxiliary induction (La), second booster diode (Da2), the 3rd booster diode (Da3), the 4th booster diode (Da4), absorb electric capacity (Cr), absorption inductor (Lr) and auxiliary switch (Sa); Described auxiliary switch (Sa) negative terminal connects the dc bus negative terminal, positive termination the 4th booster diode (Da4) negative electrode, the 4th booster diode (Da4) anode connects the 3rd booster diode (Da3) anode, the 3rd booster diode (Da3) negative electrode connects first diode (D1) negative electrode, the 4th booster diode (Da4) anode also connects auxiliary induction (La), auxiliary induction (La) other end connects first diode (D1) negative electrode by absorbing electric capacity (Cr), the common ends that absorbs electric capacity (Cr) and auxiliary induction (La) connects the 11 diode (Da11) respectively, the 12 diode (Da12) negative electrode, the 11 diode (Da11), the 12 diode (Da12) anode then connects first respectively, two master power switch (S1, S2) anode, the common ends that absorbs electric capacity (Cr) and auxiliary induction (La) also connects second booster diode (Da2) anode, and second booster diode (Da2) negative electrode connects dc bus anode output; Absorption inductor (Lr) termination first diode (D1) negative electrode, other end dc bus anode output.
2, double-unit high-performance converter as claimed in claim 1 is characterized in that: also comprise first junction capacitance (Cs1), second junction capacitance (Cs2), be parallel to respectively on first and second master power switch (S1, S2).
3, double-unit high-performance converter as claimed in claim 1 or 2 is characterized in that: also comprise the first inverse parallel diode (Ds1), the second inverse parallel diode (Ds2), be parallel to respectively on first and second master power switch (S1, S2).
4, a kind of double-unit high-performance decompression transducer, comprise first master power switch (S1), second master power switch (S2), first inductance (L1), energy storage inductor (L), first diode (D1) anode, described first master power switch (S1) is serially connected with the dc bus anode, second master power switch (S2) negative terminal connects first master power switch (S1) negative terminal by first inductance (L1), positive termination first master power switch (S1) anode; First diode (D1) anode negative electrode connects the negative terminal of energy storage inductor (L) and first master power switch (S), and the other end of energy storage inductor (L) is a dc bus anode output; It is characterized in that: also comprise the 11 booster diode (Da11), the 12 booster diode (Da12), auxiliary induction (La), second booster diode (Da2), the 3rd booster diode (Da3), the 4th booster diode (Da4), absorb electric capacity (Cr), absorption inductor (Lr) and auxiliary switch (Sa); The positive termination first of described auxiliary switch (Sa), two master power switch (S1, S2) common anode, negative terminal connects the 4th booster diode (Da4) anode, the 4th booster diode (Da4) negative electrode connects the 3rd booster diode (Da3) anode and auxiliary induction (La), the 3rd booster diode (Da3) negative electrode connects the anode of absorption inductor (Lr) and first diode (D1), auxiliary induction (La) other end connects first diode (D1) anode by absorbing electric capacity (Cr), the common ends that absorbs electric capacity (Cr) and auxiliary induction (La) connects the 11 diode (Da11) anode respectively, the 12 diode (Da12) anode and second booster diode (Da2) negative electrode, the 11 diode (Da11), the negative electrode of the 12 diode (Da12) then connects first respectively, two master power switch (S1, S2) negative terminal, second booster diode (Da2) anode connects the dc bus negative terminal; Absorption inductor (Lr) termination first diode (D1) anode, other end dc bus negative terminal.
5, a kind of double-unit high-performance lifting/lowering pressure type converter, comprise first master power switch (S1), second master power switch (S2), first inductance (L1), energy storage inductor (L), first and second diode (D1, D2), described first master power switch (S1) is serially connected with the dc bus anode, negative terminal connects the dc bus negative terminal by energy storage inductor (L), the positive termination dc bus anode input of second master power switch (S2), negative terminal connects first master power switch (S1) negative terminal by first inductance (L1); First and second diode (D1, D2) negative electrode connects first and second master power switch (S1, S2) negative terminal respectively; It is characterized in that: also comprise the 11 booster diode (Da11), the 12 booster diode (Da12), auxiliary induction (La), second booster diode (Da2), the 3rd booster diode (Da3), the 4th booster diode (Da4), absorb electric capacity (Cr), absorption inductor (Lr) and auxiliary switch (Sa); The positive termination first of described auxiliary switch (Sa), two master power switch (S1, S2) anode, negative terminal connects the 4th booster diode (Da4) anode, the 4th booster diode (Da4) negative electrode connects the 3rd booster diode (Da3) negative electrode and auxiliary induction (La), the 3rd booster diode (Da3) anode connects first diode (D1) anode, auxiliary induction (La) other end connects first diode (D1) anode by absorbing electric capacity (Cr), the common ends that absorbs electric capacity (Cr) and auxiliary induction (La) connects the 11 diode (Da11) anode respectively, the 12 diode (Da12) anode and second booster diode (Da2) negative electrode, the 11 diode (Da11), the 12 diode (Da12) negative electrode then connects first respectively, two master power switch (S1, S2) negative terminal, second booster diode (Da2) anode is a dc bus anode output; Absorption inductor (Lr) termination first diode (D1) anode, another termination dc bus anode output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01117517A CN1123961C (en) | 2001-05-30 | 2001-05-30 | Double-unit high-performance converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01117517A CN1123961C (en) | 2001-05-30 | 2001-05-30 | Double-unit high-performance converter |
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| Publication Number | Publication Date |
|---|---|
| CN1318895A true CN1318895A (en) | 2001-10-24 |
| CN1123961C CN1123961C (en) | 2003-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN01117517A Expired - Fee Related CN1123961C (en) | 2001-05-30 | 2001-05-30 | Double-unit high-performance converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346563C (en) * | 2004-03-25 | 2007-10-31 | 南京航空航天大学 | Isolation boost transformer of boosting induction adopting LCD non-loss absorption circuit and having coupled winding |
| CN105245105A (en) * | 2015-11-05 | 2016-01-13 | 盐城工学院 | Parallel-serial conversion single tube control high-gain DC voltage-boosting conversion circuit |
| CN108736709A (en) * | 2018-06-14 | 2018-11-02 | 南京矽力杰半导体技术有限公司 | Power inverter |
| CN110277912A (en) * | 2018-03-15 | 2019-09-24 | 株洲中车时代电气股份有限公司 | A kind of DC boosting translation circuit |
-
2001
- 2001-05-30 CN CN01117517A patent/CN1123961C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346563C (en) * | 2004-03-25 | 2007-10-31 | 南京航空航天大学 | Isolation boost transformer of boosting induction adopting LCD non-loss absorption circuit and having coupled winding |
| CN105245105A (en) * | 2015-11-05 | 2016-01-13 | 盐城工学院 | Parallel-serial conversion single tube control high-gain DC voltage-boosting conversion circuit |
| CN110277912A (en) * | 2018-03-15 | 2019-09-24 | 株洲中车时代电气股份有限公司 | A kind of DC boosting translation circuit |
| CN110277912B (en) * | 2018-03-15 | 2021-01-22 | 株洲中车时代电气股份有限公司 | Direct current boost conversion circuit |
| CN108736709A (en) * | 2018-06-14 | 2018-11-02 | 南京矽力杰半导体技术有限公司 | Power inverter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1123961C (en) | 2003-10-08 |
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