CN110311573A - A kind of more level of switched capacitor hand over~hand over direct converter - Google Patents

A kind of more level of switched capacitor hand over~hand over direct converter Download PDF

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Publication number
CN110311573A
CN110311573A CN201910569370.XA CN201910569370A CN110311573A CN 110311573 A CN110311573 A CN 110311573A CN 201910569370 A CN201910569370 A CN 201910569370A CN 110311573 A CN110311573 A CN 110311573A
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CN
China
Prior art keywords
switching tube
tube group
drain electrode
capacitor
switching
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Application number
CN201910569370.XA
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Chinese (zh)
Inventor
何雯慧
李磊
吴世杰
刘芝越
廖伟棋
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Nanjing Tech University
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Nanjing Tech University
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Priority to CN201910569370.XA priority Critical patent/CN110311573A/en
Publication of CN110311573A publication Critical patent/CN110311573A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H02M3/073—Charge pumps of the Schenkel-type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H02M3/073—Charge pumps of the Schenkel-type
    • H02M3/077—Charge pumps of the Schenkel-type with parallel connected charge pump stages

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Hand over the invention discloses a kind of more level of switched capacitor~direct converter is handed over, it is made of switching tube group and capacitor, wherein switching tube group is made of the wholly-controled device of a pair of of source series, and capacitor is non-polar capacitor under friendship~friendship pattern conversion.When the converter in buck mode when, input voltage is connected with high-voltage end, and output loading is connected with low-pressure end, is achieved in the decompression transformation of input and output；When the converter is under low-voltage, input voltage is connected with low-pressure end, and output loading is connected with high-voltage end, is achieved in the boosting inverter of input and output.Buck/boost friendship~friendship that the present invention can be realized (M*N) times directly converts, have many advantages, such as control strategy simply, power density and high conversion efficiency, small in size, light-weight, easy extension.

Description

A kind of more level of switched capacitor hand over~hand over direct converter
Technical field
The invention belongs to converters technology, specially a kind of more level friendship~friendships of switched capacitor are directly converted Device.
Background technique
All the time, to the research of more level friendship~AC-AC converters, mainly there are friendship~straight~more level friendship~alternations of friendship type The non-isolated three-level AC of parallel operation, Buck type~friendship direct converter and multilevel matrix converter etc., but it is multiple to there is topology The miscellaneous, disadvantages such as control is complicated, conversion efficiency is low.In recent years, have scholar propose novel more level hand over~hand over direct converter, Although topology is more succinct, power conversion series is few, conversion efficiency is high, but has a problem in that this more level friendship~AC-AC converter works Making process, there is still a need for magnetic elements, it is however generally that, magnetics volume is big, weight is big, can also bring EMI problem, influences to become Parallel operation performance.
Summary of the invention
Hand over the purpose of the present invention is to provide a kind of more level of switched capacitor~hand over direct converter.
Realize the technical solution of the object of the invention are as follows: direct converter is handed over~handed over to a kind of more level of switched capacitor, including Sequentially connected longitudinal switch capacitance module, lateral switching capacity module, bridge-type module；The longitudinal switch capacitance module includes Two input terminals and two output ends；The transverse direction switching capacity module includes two input terminals and four output ends；The bridge Formula module includes four input terminals and two output ends；
The longitudinal switch capacitance module includes switching tube group S1, switching tube group S2, switching tube group S3, switching tube group S4, electricity Container C1, capacitor C2, capacitor C3, the capacitor C1One end and switching tube group S1Upper drain electrode connection, the capacitor C1The other end and capacitor C3One end connection, the capacitor C3The other end and switching group S4Lower drain electrode connection；It is described Switching group S4Upper drain electrode and switching tube group S3Lower drain electrode connection, the switching tube group S3Upper drain electrode and switching tube group S1's Lower drain electrode connection, the capacitor C2One end and switching tube group S1Lower drain electrode connection, the capacitor C2The other end with open Close pipe group S3Lower drain electrode connection；The switching tube group S1Upper drain electrode, the switching tube group S4Lower drain electrode as longitudinal switch The input terminal of capacitance module；The switching tube group S3The upper drain electrode switching tube group S4Lower drain electrode as two output ends；
The transverse direction switching capacity module includes switching tube group S5, switching tube group S6, switching tube group S7, capacitor C4, capacitor Device C5, the capacitor C4One end and switching tube group S5Right drain electrode connection, the capacitor C5One end and switching tube group S6 Right drain electrode connection；The switching tube group S5Right drain electrode and switching tube group S6Left drain electrode connection, the switching tube group S6The right side Drain electrode and switching tube group S7Left drain electrode connection；The capacitor C4The other end, the capacitor C5The other end, described open Close pipe group S7Right drain electrode be lateral switching capacity module wherein three output ends, the switching tube group S5Left drain electrode as it In an input terminal, an input terminal of the transverse direction switching capacity module and an output end of longitudinal switch capacitance module connect It connects, the another output of the longitudinal switch capacitance module is simultaneously as the remaining input of lateral switching capacity module End, output end；
The bridge-type module includes switching tube group S8, switching tube group S9, switching tube group S10, switching tube group S11；The switch Pipe group S8Lower drain electrode and switching tube group S9Upper drain electrode connection, the switching tube group S10Lower drain electrode and switching tube group S11It is upper Drain electrode connection, the switching tube group S8Upper drain electrode and switching tube group S10Upper drain electrode connection, the switching tube group S9Lower leakage Pole and switching tube group S11Lower drain electrode connection；The switching tube group S8Upper drain electrode, the switching tube group S8Lower drain electrode, described Switching tube group S10Lower drain electrode, the switching tube group S9Four input terminals of the lower drain electrode as bridge-type module, the switching tube Group S11Lower drain electrode, switching tube group S10Lower drain electrode as two output ends；Four input terminals of bridge-type module and laterally switch Four output ends of capacitance module connect one to one.
Preferably, each switching tube group includes the full-controlled switch device of two source series, while applying identical Driving signal realizes two-way switch conducting.
Preferably, the capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5In exchange conversion mode Under be non-polar capacitor.
Preferably, it when input voltage is connected with high-pressure side, output loading is connected with low-pressure side, realizes 2*3 times and is depressured；Input When voltage is connected with low-pressure side, output loading is connected with high-pressure side, realizes 2*3 times and boost.
Preferably, the longitudinal switch capacitance module, which is longitudinally expanded, forms longitudinal switch capacitance module topology, every to increase by two The ratio of a switching tube group and two capacitors, input voltage and output voltage just reduces by one times or rises and doubles.
Preferably, the lateral switching capacity module, which is laterally expanded, forms lateral switching capacity module topology, every to increase by one As soon as the ratio of a switching tube group and capacitor, input voltage and output voltage reduces by one times or rises and doubles.
Preferably, the longitudinal switch capacitance module is longitudinally expanded, while the lateral switching capacity module is laterally expanded, Realize that the ratio of input voltage and output voltage reduces M*N times or M*N times of raising, wherein M >=2, N >=3.
The present invention has following positive technical advantage:
1) present invention can be realized M*N times and be depressured, and exchanges the position of input voltage and output loading, then can be realized M*N It is depressured again；2) small in size, light-weight, high conversion efficiency of the invention, power density are big；3) present invention is easily extended may be implemented The amplitude transformation of alternating voltage.
Detailed description of the invention
Fig. 1 is that direct converter structure chart is handed over~handed over to the more level of switched capacitor.
Fig. 2 is longitudinal switch capacitance module schematic diagram.
Fig. 3 is lateral switching capacity module diagram.
Fig. 4 is bridge-type module diagram.
Fig. 5 is the driving signal schematic diagram of switching tube group.
Fig. 6 is that input and output voltage theoretical waveform is illustrated under decompression mode.
Fig. 7 is that capacitor voltage at both ends theoretical waveform is illustrated under decompression mode.
Fig. 8 is the signal of decompression mode lower switch pipe group both end voltage theoretical waveform, and (a) is switching tube group S1、S2、S3、S4Two Hold voltage waveform；It (b) is switching tube group S6Both end voltage waveform；It (c) is switching tube group S5、S7、S8、S9、S10、S11Both end voltage Waveform.
Fig. 9 is the transformer configuration figure after the extension of longitudinal switch capacitance module.
Figure 10 is the transformer configuration figure after lateral switching capacity module extension.
Figure 11 is longitudinal expands and the transformer configuration figure after lateral expand.
Specific embodiment
Direct converter is handed over~handed over to a kind of more level of switched capacitor, including sequentially connected longitudinal switch capacitance module, Lateral switching capacity module, bridge-type module；The longitudinal switch capacitance module includes two input terminals and two output ends；It is described Lateral switching capacity module includes two input terminals and four output ends；The bridge-type module includes that four input terminals and two are defeated Outlet；
The longitudinal switch capacitance module includes switching tube group S1, switching tube group S2, switching tube group S3, switching tube group S4, electricity Container C1, capacitor C2, capacitor C3, the capacitor C1One end and switching tube group S1Upper drain electrode connection, the capacitor C1The other end and capacitor C3One end connection, the capacitor C3The other end and switching group S4Lower drain electrode connection；It is described Switching group S4Upper drain electrode and switching tube group S3Lower drain electrode connection, the switching tube group S3Upper drain electrode and switching tube group S1's Lower drain electrode connection, the capacitor C2One end and switching tube group S1Lower drain electrode connection, the capacitor C2The other end with open Close pipe group S3Lower drain electrode connection；The switching tube group S1Upper drain electrode, the switching tube group S4Lower drain electrode as longitudinal switch The input terminal of capacitance module；The switching tube group S3The upper drain electrode switching tube group S4Lower drain electrode as two output ends；On The control strategy for stating switching tube group is switching tube group S1With switching tube group S3Driving signal it is consistent, switching tube group S2And switching tube Group S4Driving signal it is consistent, switching tube group S2Driving signal lag behind switching tube group S1180 ° of driving signal.
The transverse direction switching capacity module includes switching tube group S5, switching tube group S6, switching tube group S7, capacitor C4, capacitor Device C5, the capacitor C4One end and switching tube group S5Right drain electrode connection, the capacitor C5One end and switching tube group S6 Right drain electrode connection；The switching tube group S5Right drain electrode and switching tube group S6Left drain electrode connection, the switching tube group S6The right side Drain electrode and switching tube group S7Left drain electrode connection；The capacitor C4The other end, the capacitor C5The other end, described open Close pipe group S7Right drain electrode be lateral switching capacity module wherein three output ends, the switching tube group S5Left drain electrode as it In an input terminal, an input terminal of the transverse direction switching capacity module and an output end of longitudinal switch capacitance module connect It connects, the another output of the longitudinal switch capacitance module is simultaneously as the remaining input of lateral switching capacity module End, output end；The control strategy of above-mentioned switching tube group is switching tube group S5With switching tube group S7Driving signal it is consistent, switching tube Group S6Driving signal lag behind switching tube group S5180 ° of driving signal.
The bridge-type module includes switching tube group S8, switching tube group S9, switching tube group S10, switching tube group S11；The switch Pipe group S8Lower drain electrode and switching tube group S9Upper drain electrode connection, the switching tube group S10Lower drain electrode and switching tube group S11It is upper Drain electrode connection, the switching tube group S8Upper drain electrode and switching tube group S10Upper drain electrode connection, the switching tube group S9Lower leakage Pole and switching tube group S11Lower drain electrode connection；The switching tube group S8Upper drain electrode, the switching tube group S8Lower drain electrode, described Switching tube group S10Lower drain electrode, the switching tube group S9Four input terminals of the lower drain electrode as bridge-type module, the switching tube Group S11Lower drain electrode, switching tube group S10Lower drain electrode as two output ends；Four input terminals of bridge-type module and laterally switch Four output ends of capacitance module connect one to one.The control strategy of above-mentioned switching tube group is switching tube group S8With switching tube group S11Driving signal it is consistent, switching tube group S9With switching tube group S10Driving signal is consistent, switching tube group S9Driving signal lag In switching tube group S8180 ° of driving signal.
Switching tube group S in above three module1, switching tube group S5, switching tube group S8Control strategy it is consistent；All opens Closing pipe group is all that there are two the full-controlled switch devices of source series to form, while applying identical driving signal, be can be realized Two-way switch conducting.
In further embodiment, each switching tube group includes the full-controlled switch device of two source series, simultaneously Apply identical driving signal, realizes two-way switch conducting.
In further embodiment, the capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5It is handing over Flowing under pattern conversion is non-polar capacitor.
In further embodiment, when input voltage is connected with high-pressure side, output loading is connected with low-pressure side, 2*3 is realized It is depressured again；When input voltage is connected with low-pressure side, output loading is connected with high-pressure side, realizes 2*3 times and boost.
In further embodiment, longitudinal switch capacitance module longitudinal direction expansion forms longitudinal switch capacitance module and opens up It flutters, two switching tube groups of every increase and two capacitors, the ratio of input voltage and output voltage just reduces by one times or increases One times.
In further embodiment, the transverse direction switching capacity module is laterally expanded the lateral switching capacity module of formation and is opened up It flutters, as soon as the ratio of one switching tube group of every increase and capacitor, input voltage and output voltage reduces by one times or increases One times.
In further embodiment, the longitudinal switch capacitance module is longitudinally expanded, while the lateral switching capacity mould Block is laterally expanded, and realizes that the ratio of input voltage and output voltage reduces M*N times or M*N times of raising, wherein M >=2, N >=3.
Embodiment 1
As shown in Figure 1, direct converter, including a longitudinal switch capacitor mould are handed over~handed over to a kind of more level of switched capacitor Block, lateral switching capacity module, a bridge-type module；The longitudinal switch capacitance module includes two input terminals and two A output end, two input terminals are connected with input voltage, two output ends and lateral switching capacity module phase Even；The lateral switching capacity module includes two input terminals and four output ends, and two input terminals are opened with longitudinal It closes capacitance module to be connected, four output ends are connected with bridge-type module；The bridge-type module include four input terminals and Two output ends, four input terminals are connected with lateral switching capacity module, two output ends and output loading It is connected.
As shown in Fig. 2, the longitudinal switch capacitance module is by switching tube group S1, switching tube group S2, switching tube group S3, switch Pipe group S4, capacitor C1, capacitor C2, capacitor C3Composition；The control strategy of above-mentioned switching tube group is switching tube group S1And switch Pipe group S3Driving signal it is consistent, switching tube group S2With switching tube group S4Driving signal it is consistent, switching tube group S2Driving signal Lag behind switching tube group S1180 ° of driving signal, as shown in Figure 5.
As shown in figure 3, the longitudinal switch capacitance module is by switching tube group S5, switching tube group S6, switching tube group S7, capacitor Device C4, capacitor C5Composition；The control strategy of above-mentioned switching tube group is switching tube group S5With switching tube group S7Driving signal one It causes, switching tube group S6Driving signal lag behind switching tube group S5180 ° of driving signal, as shown in Figure 5.
As shown in figure 4, the bridge-type module is by switching tube group S8, switching tube group S9, switching tube group S10, switching tube group S11Group At；The control strategy of above-mentioned switching tube group is switching tube group S8With switching tube group S11Driving signal it is consistent, switching tube group S9With Switching tube group S10Driving signal is consistent, switching tube group S9Driving signal lag behind switching tube group S8180 ° of driving signal, such as Shown in Fig. 5.
As shown in fig. 6, the output end voltage i.e. low-pressure end electricity of direct converter is handed over~handed over to the more level of switched capacitor Relationship proportional to input terminal voltage, that is, high-voltage end voltage is pressed, the input terminal voltage is peak value UpeakSine wave when, it is described Output end voltage is peak value 1/6UpeakSine wave.
As shown in fig. 7, the capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5Both end voltage with it is defeated Enter to hold the proportional relationship of voltage, the input terminal voltage is peak value UpeakSine wave when, the capacitor C1, capacitor C2, electricity Container C3Both end voltage is 1/2UpeakSine wave, the capacitor C4Both end voltage is 1/3UpeakSine wave, the capacitor Device C5Both end voltage is 1/6UpeakSine wave.
As shown in figure 8, the switching tube group S1, switching tube group S2, switching tube group S3, switching tube group S4, switching tube group S5, open Close pipe group S6, switching tube group S7, switching tube group S8, switching tube group S9, switching tube group S10, switching tube group S11Both end voltage is by a system The copped wave for arranging not constant amplitude is constituted, and sine wave characteristics is presented in the envelope of the not constant amplitude copped wave, and has centainly with input terminal voltage Proportionate relationship, the input terminal voltage be peak value UpeakSine wave when, the switching tube group S1, switching tube group S2, switching tube Group S3, switching tube group S4Not constant amplitude copped wave envelope be 1/2UpeakSine wave, the switching tube group S6Not constant amplitude copped wave Envelope is 1/3UpeakSine wave, the switching tube group S5, switching tube group S7, switching tube group S8, switching tube group S9, switching tube Group S10, switching tube group S11Not constant amplitude copped wave envelope be 1/6UpeakSine wave.
Switching tube group S in above three module1, switching tube group S5, switching tube group S8Control strategy it is consistent；All opens Closing pipe group is all that there are two the full-controlled switch devices of source series to form, and driving signal is identical, can be realized two-way switch and leads It is logical.
The switching tube group S1Upper drain electrode be connected with input voltage anode；The switching tube group S1Lower drain electrode with Switching tube group S2Upper drain electrode be connected；The switching tube group S2Lower drain electrode and switching tube group S3Upper drain electrode be connected；Described Switching tube group S3Lower drain electrode and switching tube group S4Upper drain electrode be connected；Switching tube group S4Lower drain electrode and input voltage cathode phase Even.
Capacitor C1With switching tube group S1Upper drain electrode, switching tube group S2Lower drain electrode be connected；Capacitor C2With switching tube group S1Lower drain electrode, switching tube group S4Upper drain electrode be connected；Capacitor C3With switching tube group S3Upper drain electrode, switching tube group S4Lower leakage Extremely it is connected.
The switching tube group S5Left drain electrode and switching tube group S3Upper drain electrode be connected；The switching tube group S5The right side Drain electrode and switching tube group S6Left drain electrode be connected；The switching tube group S6Right drain electrode and switching tube group S7Left drain electrode be connected.
Capacitor C4With switching tube group S5Right drain electrode be connected；Capacitor C5With switching tube group S7Left drain electrode be connected.
The switching tube group S8Upper drain electrode and switching tube group S10Upper drain electrode be connected, be connected with output loading anode； The switching tube group S8Lower drain electrode and switching tube group S9Upper drain electrode be connected；The switching tube group S10Lower drain electrode with open Close pipe group S11Upper drain electrode be connected；The switching tube group S9Lower drain electrode and switching tube group S11Lower drain electrode be connected, with output Cathode is loaded to be connected.
Direct converter is handed over~handed over to the more level of the switched capacitor of the present embodiment, and there are two work in a switch periods State:
(1) switching tube group S1、S3、S5、S7、S9、S10It is open-minded, switching tube group S2、S4、S6、S8、S11Shutdown.Capacitor C2、C3 Charge to (1/2) Uhign, capacitor C4Charge to (1/3) Uhign, capacitor C1It is discharged to (1/2) Uhign, C5It is discharged to (1/6) Uhign, obtaining output voltage is (1/6) Uhign。
(2) switching tube group S1、S3、S5、S7、S9、S10Shutdown, switching tube group S2、S4、S6、S8、S11It is open-minded.Capacitor C1、C2 Charge to (1/2) Uhign, C5Charge to (1/6) Uhign, capacitor C3It is discharged to (1/2) Uhign, C4It is discharged to (1/3) Uhign, obtain Output voltage is (1/6) Uhign。
Above-mentioned two working condition alternately realizes that switching frequency 50kHz, driving signal controls plan in the entire period It is slightly controlled using PWM, duty ratio 0.5.
Embodiment 2
With reference to Fig. 9, longitudinal switch capacitance module is longitudinally expanded, increases a longitudinal switch capacitor cell, that is, increases by two The decompression of (3*3) again may be implemented in a switching tube group and two capacitors.
Longitudinal expansion department point includes switching tube group S5, switching tube group S6, capacitor C4, capacitor C5, constitute one A longitudinal switch capacitor cell, the switching tube group S5Lower drain electrode and switching tube group S6Upper drain electrode connection, the capacitor C4One end and switching tube group S5Lower drain electrode connection, the capacitor C5One end and switching tube group S5Upper drain electrode connection, institute State capacitor C5The other end and switching tube group S6Lower drain electrode connection；
The relationship of longitudinal expansion part and original longitudinal switch capacitance module is: the capacitor C4One end with Switching tube group S4Upper drain electrode connection, the capacitor C5One end and switching tube group S4Lower drain electrode connection；
The input terminal of longitudinal switch capacitance module after longitudinal expansion changes: the switching tube S1Upper drain electrode It is connected with input terminal one end, the switching tube S6Lower drain electrode be connected with the input terminal other end；
Embodiment 3
With reference to Figure 10, lateral switching capacity mode is laterally expanded, increases a lateral switching capacity unit, that is, increases by one The decompression of (2*4) again may be implemented in a switching tube group and a capacitor.
The lateral expansion department point includes switching tube group S8, capacitor C6, a lateral switching capacity unit is constituted, The relationship of the lateral expansion part and original lateral switching capacity module is: the capacitor C6One end and capacitor C4 One end connection, the capacitor C6The other end and switching tube group S7Right drain electrode connection, the switching tube group S8Left drain electrode With switching tube group S7Right drain electrode connection；
The output end of longitudinal switch capacitance module after longitudinal expansion changes: the switching tube S8Right drain electrode It is connected with output end one end (3 port), the capacitor C4One end be connected with output end one end (4 port), the capacitor C5 One end be connected with output end one end (5 port), the capacitor C6One end be also connected with output end one end (4 port)；
Embodiment 4
As shown in figure 11, longitudinal switch capacitance module longitudinally expanded respectively, laterally expand lateral switching capacity, that is, divided Not Zeng Jia the lateral switching capacity unit of a longitudinal switch capacitor cell and one, the decompression of (3*4) times may be implemented, specifically connect It is identical as embodiment 2,3 to connect mode.
Input terminal in Fig. 1, Fig. 9, Figure 10, Figure 11 is exchanged into position with output end, boosting inverter may be implemented.

Claims (7)

1. a kind of more level of switched capacitor hand over~hand over direct converter, which is characterized in that including sequentially connected longitudinal switch Capacitance module, lateral switching capacity module, bridge-type module；The longitudinal switch capacitance module includes that two input terminals and two are defeated Outlet；The transverse direction switching capacity module includes two input terminals and four output ends；The bridge-type module includes four inputs End and two output ends；
The longitudinal switch capacitance module includes switching tube group S1, switching tube group S2, switching tube group S3, switching tube group S4, capacitor C1, capacitor C2, capacitor C3, the capacitor C1One end and switching tube group S1Upper drain electrode connection, the capacitor C1's The other end and capacitor C3One end connection, the capacitor C3The other end and switching group S4Lower drain electrode connection；The switch Group S4Upper drain electrode and switching tube group S3Lower drain electrode connection, the switching tube group S3Upper drain electrode and switching tube group S1Lower leakage Pole connection, the capacitor C2One end and switching tube group S1Lower drain electrode connection, the capacitor C2The other end and switching tube Group S3Lower drain electrode connection；The switching tube group S1Upper drain electrode, the switching tube group S4Lower drain electrode as longitudinal switch capacitor The input terminal of module；The switching tube group S3The upper drain electrode switching tube group S4Lower drain electrode as two output ends；
The transverse direction switching capacity module includes switching tube group S5, switching tube group S6, switching tube group S7, capacitor C4, capacitor C5, The capacitor C4One end and switching tube group S5Right drain electrode connection, the capacitor C5One end and switching tube group S6The right side Drain electrode connection；The switching tube group S5Right drain electrode and switching tube group S6Left drain electrode connection, the switching tube group S6Right drain electrode With switching tube group S7Left drain electrode connection；The capacitor C4The other end, the capacitor C5The other end, the switching tube Group S7Right drain electrode be lateral switching capacity module wherein three output ends, the switching tube group S5Left drain electrode as wherein one One input terminal of a input terminal, the transverse direction switching capacity module is connect with an output end of longitudinal switch capacitance module, The another output of the longitudinal switch capacitance module is simultaneously as the remaining input terminal of lateral switching capacity module, defeated Outlet；
The bridge-type module includes switching tube group S8, switching tube group S9, switching tube group S10, switching tube group S11；The switching tube group S8 Lower drain electrode and switching tube group S9Upper drain electrode connection, the switching tube group S10Lower drain electrode and switching tube group S11Upper drain electrode connect It connects, the switching tube group S8Upper drain electrode and switching tube group S10Upper drain electrode connection, the switching tube group S9Lower drain electrode with open Close pipe group S11Lower drain electrode connection；The switching tube group S8Upper drain electrode, the switching tube group S8Lower drain electrode, the switching tube Group S10Lower drain electrode, the switching tube group S9Four input terminals of the lower drain electrode as bridge-type module, the switching tube group S11's Lower drain electrode, switching tube group S10Lower drain electrode as two output ends；Four input terminals of bridge-type module and lateral switching capacity mould Four output ends of block connect one to one.
2. the more level of switched capacitor according to claim 1 hand over~hand over direct converter, which is characterized in that each switch Guan Zujun includes the full-controlled switch device of two source series, while applying identical driving signal, realizes that two-way switch is led It is logical.
3. the more level of switched capacitor according to claim 1 hand over~hand over direct converter, which is characterized in that the electricity Container C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5It is non-polar capacitor under exchange conversion mode.
4. the more level of switched capacitor according to claim 1 hand over~hand over direct converter, which is characterized in that input voltage It is connected with high-pressure side, when output loading is connected with low-pressure side, realizes 2*3 times and be depressured；Input voltage is connected with low-pressure side, exports and bear When load is connected with high-pressure side, realizes 2*3 times and boost.
5. the more level of switched capacitor according to claim 1 hand over~hand over direct converter, which is characterized in that the longitudinal direction Switching capacity module, which is longitudinally expanded, forms longitudinal switch capacitance module topology, two switching tube groups of every increase and two capacitors, The ratio of input voltage and output voltage just reduces by one times or rises and doubles.
6. the more level of switched capacitor according to claim 1 hand over~hand over direct converter, which is characterized in that the transverse direction Switching capacity module, which is laterally expanded, forms lateral switching capacity module topology, one switching tube group of every increase and a capacitor, The ratio of input voltage and output voltage just reduces by one times or rises and doubles.
7. the more level of switched capacitor according to claim 1 hand over~hand over direct converter, which is characterized in that the longitudinal direction Switching capacity module is longitudinally expanded, while the lateral switching capacity module is laterally expanded, and realizes input voltage and output voltage Ratio reduce M*N times or raising M*N times, wherein M >=2, N >=3.
CN201910569370.XA 2019-06-27 2019-06-27 A kind of more level of switched capacitor hand over~hand over direct converter Pending CN110311573A (en)

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US20180026518A1 (en) * 2016-07-07 2018-01-25 Tianshu Liu Multi-Stage Multilevel DC-DC Step-Down Converter
US10090763B1 (en) * 2017-06-19 2018-10-02 Dialog Semiconductor (Uk) Limited Multi-level buck converter having a regulated flying capacitor voltage used for high-side drive
CN109256953A (en) * 2017-07-13 2019-01-22 英飞凌科技奥地利有限公司 Switch capacitor converter and its operating method
US20190028031A1 (en) * 2017-07-18 2019-01-24 Texas Instruments Incorporated Three-level converter using an auxiliary switched capacitor circuit
CN109474186A (en) * 2018-12-30 2019-03-15 龚秋声 Modified Cuk hands over voltage regulation circuit of chopping and its application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160344214A1 (en) * 2015-05-21 2016-11-24 Dialog Semiconductor (Uk) Limited High Efficiency Switching Charger with Reduced Input Voltage Ripple
US20180026518A1 (en) * 2016-07-07 2018-01-25 Tianshu Liu Multi-Stage Multilevel DC-DC Step-Down Converter
US10090763B1 (en) * 2017-06-19 2018-10-02 Dialog Semiconductor (Uk) Limited Multi-level buck converter having a regulated flying capacitor voltage used for high-side drive
CN109256953A (en) * 2017-07-13 2019-01-22 英飞凌科技奥地利有限公司 Switch capacitor converter and its operating method
US20190028031A1 (en) * 2017-07-18 2019-01-24 Texas Instruments Incorporated Three-level converter using an auxiliary switched capacitor circuit
CN109474186A (en) * 2018-12-30 2019-03-15 龚秋声 Modified Cuk hands over voltage regulation circuit of chopping and its application

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Application publication date: 20191008