CN109327139A - A kind of step-up/step-down circuit - Google Patents
A kind of step-up/step-down circuit Download PDFInfo
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- CN109327139A CN109327139A CN201811342262.0A CN201811342262A CN109327139A CN 109327139 A CN109327139 A CN 109327139A CN 201811342262 A CN201811342262 A CN 201811342262A CN 109327139 A CN109327139 A CN 109327139A
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- 239000003990 capacitor Substances 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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Classifications
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- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
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- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of step-up/step-down circuits, it is improved on the basis of traditional four pipe BUCK-BOOST step-up/step-down circuits, remove switching device S3 therein, multiplex switch device S2 is under BOOST boost mode to save a switching tube, an and inductance of connecting between the source electrode of switching device S1 and the drain electrode of switching device S2, so that the turn ratio of circuit in different modes is different, when for BUCK mode, under the conditions of identical input and output voltage ratio, the duty ratio of switching device S1 the turn ratio be greater than 1 when than the turn ratio be equal to 1 when it is big, and when for BOOST mode, the duty ratio of switching device S2 the turn ratio be greater than 1 when than the turn ratio be equal to 1 when it is small, it is less than to realize the circuit not only and output voltage may be implemented, equal to or more than the power supply application of input voltage , can also realize output and input is the power supply application of large velocity ratio.
Description
Technical field
The present invention relates to switching power converters circuits, in particular to have the buck of two kinds of operating modes of voltage raising and reducing
Circuit.
Background technique
In solar energy, the field of the application fields such as wind energy, fuel cell and wide-voltage range input, needing to use has
The DC converter of buck characteristic.Due to the wide input voltage range of power inverter, have simultaneously provided by the prior art
There is the circuit of boosting and decompression to realize high lifting in the case where can not be in high or low input voltage and certain duty cycle range
Pressure ratio rate even if other topological realizations can be used, but increases the complexity, stability and the cost of raw material of system.
Existing four switch BUCKs-BOOST step-up/step-down circuit is as shown in Figure 1, include 4 switching device S1 to S4, an electricity
Feel L, an input capacitance C1 and an output capacitance C2.
Switching device S1, switching device S2 and inductance L composition decompression (BUCK) converter in Fig. 1, derailing switch therein
Part S2 is able to achieve synchronous rectification using metal-oxide-semiconductor substitution diode；Switching device S3, switching device S4 and inductance L composition boosting
(BOOST) converter, switching device S4 therein are able to achieve synchronous rectification using metal-oxide-semiconductor substitution diode.Converter S1 and
S3 may be implemented energy and transmit from input to output, S4 and S2 are as master switch device, Ke Yishi as master switch device
Existing energy is transmitted from output to input, so energy energy two-way flow, may be implemented the application of bi-directional power transformation.
Fig. 1 circuit both of which principle Analysis is as follows:
Under BUCK mode, output voltage is less than input voltage.In each switch periods time t, S4 is normally opened, and S3 long is closed,
S1 and S2 are open-minded in turn, and there are relationships by the duty ratio D1 that opens of input and output voltage ratio and S1, in the feelings that switching frequency is fixed
Under condition, with the reduction of D1, it is well known that turning on and off for switching device all needs the time, when D1 is reduced to centainly
When value, that is, it is less than switching device when opening the time of needs, switching device S1 cannot be normal open-minded, and power supply can not
It works normally.
Under BOOST mode, output voltage is greater than input voltage.In each switch periods time t, S1 is normally opened, and S2 long is closed,
S3 and S4 are open-minded in turn, and there are relationships by the duty ratio D3 that opens of input and output voltage ratio and S3, when D3 increases to certain value,
Namely 1-D3 be less than switching device shutdown need time when, switching device S3 cannot normal turn-off, power supply can not
It works normally.
From above-mentioned analysis it is found that output voltage V may be implemented in four traditional pipe BUCK-BOOST step-up/step-down circuitsOUTBe less than,
Equal to or more than input voltage VINPower supply application, can also realize the power supply application of bi-directional power conversion.But input and it is defeated
Become larger out for the loss of large velocity ratio application environment lower switch device, power-supply system efficiency is lower, or even cannot achieve voltage transformation
Function.
Existing coupling inductance class topology includes 2 switching devices S1 and S2,2 inductors as shown in Figures 2 and 3
Device L1 and L2, an input capacitance C1 and an output capacitance C2, two inductor devices are coupled by magnetic core.
Fig. 2 show decompression coupling inductance class topology and defines turn ratio λ=(n1+n2)/n1, input and output for Fig. 2
There are relationships by open duty ratio D and the turn ratio λ of voltage ratio and S1, can be obtained according to formula, identical gain M, and turn ratio λ increases, and account for
Sky ratio D also increases, and it is exactly the input and output voltage ratio of common BUCK and the relational expression of duty ratio D that turn ratio λ, which is 1,.The circuit is excellent
Under the conditions of point is identical input and output voltage ratio, turn ratio λ becomes larger, and duty ratio D also becomes larger, and solves common 4 switch BUCK-
The problem that BOOST circuit causes switching device that cannot normally open with the reduction of D1, but the disadvantage is that boosting cannot be realized simultaneously
Function.
Fig. 3 show boosting coupling inductance class topology and defines turn ratio λ=(n1+n2)/n1, input and output for Fig. 3
There are relationships by open duty ratio D and the turn ratio λ of voltage ratio and S2, can be obtained according to formula, identical gain M, and turn ratio λ increases, and account for
Sky ratio D reduces, and it is exactly the input and output voltage ratio of common BOOST and the relational expression of duty ratio D that turn ratio λ, which is 1,.The circuit advantage
It is under the conditions of identical input and output voltage ratio, turn ratio λ becomes larger, and duty ratio D reduces, and solves common 4 switch BUCK-BOOST
The problem of circuit causes switching device to be unable to normal turn-off with the increase of D3.But the disadvantage is that buck functionality cannot be realized simultaneously.
By above-mentioned analysis it is found that decompression coupling inductance class topology shown in Fig. 2 can solve output less than under input condition
The problem of large velocity ratio demand；Boosting coupling inductance class topology shown in Fig. 3 can solve output and need greater than large velocity ratio under input condition
The problem of asking.But two kinds of coupling inductance class topologys all not can be implemented simultaneously output voltage less than, greater than or equal to input voltage
Power supply application.
In conclusion the shortcomings that existing four switch BUCKs-BOOST is to cannot achieve output and input as the function of large velocity ratio
Energy；The disadvantage of existing coupling inductance class topology is the electricity that not can be implemented simultaneously output voltage less than, greater than or equal to input voltage
Source application.
Summary of the invention
In view of technological deficiency present in foregoing circuit, the technical problem to be solved by the present invention is to propose a kind of lifting piezoelectricity
Road not only may be implemented power supply application of the output voltage less than, greater than or equal to input voltage, can also realize output and input
For the power supply application of large velocity ratio.
In order to solve the above-mentioned technical problem, present invention is conceived are as follows: in tetra- pipe BUCK-BOOST step-up/step-down circuit of Fig. 1
Basis on improve, remove switching device S3 therein, multiplex switch device S2 is under BOOST boost mode to saving
One switching tube, and an inductance of connecting between the source electrode of switching device S1 and the drain electrode of switching device S2, so that circuit exists
The turn ratio under different mode is different, when for BUCK mode, under the conditions of identical input and output voltage ratio, and switching device S1
Duty ratio it is big when being equal to 1 than the turn ratio when the turn ratio is greater than 1, and when for BOOST mode, the duty ratio of switching device S2 exists
It is small when being equal to 1 than the turn ratio when turn ratio is greater than 1, it is less than, is equal to or greatly to realizes the circuit not only and may be implemented output voltage
In the power supply application of input voltage, it can also realize output and input is the power supply application of large velocity ratio.
In order to achieve the above-mentioned object of the invention, the invention adopts the following technical scheme:
A kind of step-up/step-down circuit, it is characterised in that: including input power just, out-put supply just, power supply is negative, first switch device
Part S1, second switch device S2, third switching device S3, the first coupling inductance device L1, the second coupling inductance device L2, first
Capacitor element C1 and the second capacitor element C2；Wherein, the conducting electric current of first switch device S1 is flowing into end connection input power just
With the port one of first capacitor C1, the conducting electric current outflow end of first switch device S1 connects the end of the first coupling inductance device L1
Mouth one, the conducting electric current of second switch device S2 flow into port two and the second coupling electricity that end connects the first coupling inductance device L1
The conducting electric current outflow end connection power supply of the port one of inductor component L2, second switch device S2 is negative, and third switching device S3's leads
Galvanization flows into the port two that end connects the second coupling inductance device L2, the conducting electric current outflow end connection of third switching device S3
The port two of port one of the out-put supply just with the second capacitor element C2, first capacitor device C1 and the second capacitor element C2 connect
Power supply is negative.
Preferably, the first coupling inductance device L1 and the second coupling inductance device L2 is by sharing a magnetic core phase
Mutual coupling is combined.
Preferably, the number of turns of the first coupling inductance device L1 and the second coupling inductance device L2 are adjustable.
Preferably, first switch device S1, the second switch device S2 and third switching device S3 are metal-oxide-semiconductor.
Preferably, the first switch device S1 and second switch device S2 is metal-oxide-semiconductor, and third switching device S3 is two
Pole pipe.
As an improvement of the above technical solution, it is characterised in that: further including third coupling inductance device L3 couples to X+1
Inductance component L (X+1), the 4th switching device S4 are to+2 switching device S (X+2) and third capacitor element C3 of X to X+1
Capacitor element C (X+1)；The port one of third coupling inductance device L3 connects the port two and second of the first coupling inductance device L1
The port one of coupling inductance device L2, the port two of third coupling inductance device L3 connect the conducting electric current of the 4th switching device S4
Outflow end, the conducting electric current of the 4th switching device S4 are flowing into the second out-put supply that end is step-up/step-down circuit just, third capacitor
The conducting electric current that the port one of part C3 connects the 4th switching device S4 flows into end, and the port two of third capacitor element C3 connects power supply
It is negative；……；The port one of+1 coupling inductance device L (X+1) of X connects port two and the second coupling of the first coupling inductance device L1
The port one of inductance component L2 is closed, the port two of+1 coupling inductance device L (X+1) of X connects+2 switching device S's (X+2) of X
Conducting electric current outflow end, the conducting electric current of+2 switching device S (X+2) of X flow into the X out-put supply that end is step-up/step-down circuit
Just, the conducting electric current that the port one of+1 capacitor element C (X+1) of X connects+2 switching device S (X+2) of X flows into end ,+1 electricity of X
It is negative that the port two of container piece C (X+1) connects power supply；X is the natural number more than or equal to 2.
Term is explained:
The control terminal of switching device: control switch conducting and the port of cut-off refer to the grid of metal-oxide-semiconductor such as metal-oxide-semiconductor
Pole；For triode, the base stage of triode is referred to.
The conducting electric current of switching device flows into end: after switch conduction, the port that electric current flows into refers to such as metal-oxide-semiconductor
The drain electrode of metal-oxide-semiconductor, no matter N-channel, P-channel, enhanced or depletion type MOS tube, conducting when, electric current is all high by voltage
Drain electrode flows to the low source electrode of voltage；For triode, the collector of triode is referred to, in conducting, electric current is by voltage height
Collector flow to the low emitter of voltage；For diode, the anode of diode is referred to.
The conducting electric current outflow end of switching device: after switch conduction, the port of electric current outflow refers to such as metal-oxide-semiconductor
The source electrode of metal-oxide-semiconductor；For triode, the emitter of triode is referred to；For diode, the cathode of diode is referred to.
The working principle of the invention will be described in detail in a specific embodiment, compared with prior art, the present invention
With following the utility model has the advantages that
1, step-up/step-down circuit of the present invention, it is only necessary to which 3 switching devices, four traditional switch step-up/step-down circuits need 4 and open
Device is closed, switching device quantity greatly reduces, because having lacked a switching device, the total losses of switching device are also reduced,
Overall efficiency is improved.
2, it is small to solve output voltage in the case of input and output voltage ratio is large velocity ratio for step-up/step-down circuit of the present invention
In input voltage, the problem that power device cannot be fully on solves output voltage greater than input voltage, and power device cannot
The problem of complete switching off.
Detailed description of the invention
Fig. 1 is 4 traditional switch BUCK-BOOST circuit diagrams；
Fig. 2 is the functional block diagram of existing bidirectional couple inductance BUCK circuit；
Fig. 3 is the functional block diagram of existing bidirectional couple inductance BOOST circuit；
Fig. 4 is first embodiment of the invention schematic diagram；
Fig. 5 is the graph of relation for exporting and inputting ratio, turn ratio λ and duty ratio under BUCK mode of the present invention；
Fig. 6 is the graph of relation for exporting and inputting ratio, turn ratio λ and duty ratio under BOOST mode of the present invention；
Fig. 7 is second embodiment of the invention schematic diagram；
Fig. 8 is third embodiment of the invention schematic diagram.
Specific embodiment
The improvement made compared with the existing technology for a better understanding of the present invention, below with reference to specific embodiment into
Row is described in detail.
First embodiment
Fig. 4 shows the schematic diagram of the first embodiment of the present invention.Including input power just, out-put supply just, power supply it is negative,
First switch device S1, second switch device S2, third switching device S3, the first coupling inductance device L1, the second coupling inductance
Device L2, first capacitor device C1 and the second capacitor element C2；Wherein, the drain electrode of first switch device S1 is connecting input power just
With the port one of first capacitor C1, the source electrode of first switch device S1 connects the port one of the first coupling inductance device L1, and second
The port two of the first coupling inductance device L1 of drain electrode connection of switching device S2 and the port one of the second coupling inductance device L2, the
The source electrode connection power supply of two switching device S2 is negative, the port of the second coupling inductance device L2 of drain electrode connection of third switching device S3
Port one of the source electrode connection out-put supply of two, third switching device S3 just with the second capacitor element C2, first capacitor device C1
It is negative that power supply is connected with the port two of the second capacitor element C2.
The present embodiment the first coupling inductance device L1 and the second coupling inductance device L2 is mutual by sharing a magnetic core
It is coupled, to realize the mutual conversion between three coupling inductance device voltage and currents.
The number of turns of the present embodiment the first coupling inductance device L1 and the second coupling inductance device L2 are adjustable, thus real
The design of the existing turn ratio.
The present embodiment is its working principle is that such, and according to input, output voltage size relation, this step-up/step-down circuit can be with
There are two kinds of operating modes of BUCK and BOOST, the duty ratio of the switching device Q1 and Q2 is denoted as D1 and D2, and the turn ratio is denoted as λ=(n1
+ n2)/n1, input voltage is denoted as Vin, and output voltage is denoted as Vo.
When output voltage be less than input voltage, that is, work in BUCK mode.Within each switch periods time, S3 is normally opened,
S1 and S2 are open-minded in turn, and there are relationships by the duty ratio D1 and turn ratio λ that opens of input and output voltage ratio and S1
Attached drawing 5 opens duty ratio for input and output voltage ratio Vo/Vin, S1's
Graph of relation between D1 and turn ratio λ.From fig. 5, it can be seen that under the conditions of identical input and output voltage ratio, the derailing switch
The duty ratio D1 of part S1 is big when turn ratio λ is greater than 1 when ratio λ equal to 1, solves common four switch BUCKs-BOOST circuit and is inputting
The problem for causing switching device that cannot normally open with the reduction of D1 when exporting large velocity ratio,
Under BOOST mode, output voltage is greater than input voltage.In each switch periods time t, S1 is normally opened, and S2 and S3 are in turn
Open-minded, there are relationships by the duty ratio D2 that opens of input and output voltage ratio and S2It is attached
Fig. 6 is the graph of relation of input and output voltage ratio, S2 opened between duty ratio D2 and turn ratio λ.From fig. 6, it can be seen that
Under the conditions of identical input and output voltage ratio, the duty ratio D2 of the switching device S2 is when turn ratio λ is greater than 1 when ratio λ and is equal to 1
It is small, solve common four switch BUCKs-BOOST circuit in input and output large velocity ratio as the increase of D3 leads to switching device not
The problem of energy normal turn-off,
The present embodiment step-up/step-down circuit may be implemented output voltage less than input voltage, output voltage be equal to input voltage and
Output voltage is greater than the function of input voltage.And 3 switching devices are only used.
It is small to solve output voltage in the case of input and output voltage ratio is large velocity ratio for the present embodiment effective solution
In input voltage, the problem that power device cannot be fully on solves output voltage greater than input voltage, and power device cannot
The problem of complete switching off.And a switching device fewer than traditional four switch BUCK-BOOST circuits, switching device quantity is significantly
It reduces, because having lacked a switching device, the total losses of switching device are also reduced, and overall efficiency is improved.
Second embodiment
Fig. 7 is second embodiment of the invention schematic diagram, on the basis of first embodiment, by the way that third switching tube to be changed to
Diode D1 realizes unidirectional high-gain BUCK-BOOST power supply application.
The beneficial effect is that fewer than first embodiment a controllable switch device, power supply cost substantially reduce.
The concrete operating principle of second embodiment, those skilled in the art can be according to first embodiment
You can get it for the course of work and the simple derivation of principle progress, is not described in detail herein.
3rd embodiment
Fig. 8 is third embodiment of the invention schematic diagram, on the basis of first embodiment, increases third coupling inductor
Part L3 is electric to+1 coupling inductance device L (X+1) of X, the 4th switching device S4 to+2 switching device S (X+2) of X and third
Container piece C3 to+1 capacitor element C (X+1) of X；The port one of third coupling inductance device L3 connects the first coupling inductance device
The port one of the port two of L1 and the second coupling inductance device L2, the 4th switch of the connection of port two of third coupling inductance device L3
The conducting electric current outflow end of device S4, the conducting electric current of the 4th switching device S4 flow into the second output electricity that end is step-up/step-down circuit
Just, the conducting electric current that the port one of third capacitor element C3 connects the 4th switching device S4 flows into end, third capacitor element C3 in source
To connect power supply negative for port two；……；The port one of+1 coupling inductance device L (X+1) of X connects the first coupling inductance device L1
Port two and the second coupling inductance device L2 port one, the port two of+1 coupling inductance device L (X+1) of X connects X+2
The conducting electric current outflow end of switching device S (X+2), it is lifting piezoelectricity that the conducting electric current of+2 switching device S (X+2) of X, which flows into end,
Just, the port one of+1 capacitor element C (X+1) of X connects the electric conduction of+2 switching device S (X+2) of X to the X out-put supply on road
Stream flows into end, and it is negative that the port two of+1 capacitor element C (X+1) of X connects power supply；X is the natural number more than or equal to 2.Third is real
The improvement purpose for applying example is realization multiple-channel output, and concrete operating principle, those skilled in the art can basis
The course of work and principle of first embodiment carry out simple derivation, and you can get it, is not described in detail herein.
Above embodiment is not construed as limitation of the present invention, and protection scope of the present invention should be limited with claim
Subject to fixed range.For those skilled in the art, without departing from the spirit and scope of the present invention, also
Several improvements and modifications can be made, such as according to the difference of application, the switching tube can be MOSFET, BJT and IGBT
Equal switching devices；According to circuit theory and design needs, by the simple fine tuning of the means to circuit such as series-parallel of device, these
Improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of step-up/step-down circuit, it is characterised in that: including input power just, out-put supply just, power supply is negative, first switch device
S1, second switch device S2, third switching device S3, the first coupling inductance device L1, the second coupling inductance device L2, the first electricity
Container piece C1 and the second capacitor element C2；Wherein, first switch device S1 conducting electric current flow into end connection input power just and
The port one of first capacitor C1, the conducting electric current outflow end of first switch device S1 connect the port of the first coupling inductance device L1
The conducting electric current of one, second switch device S2 flow into port two and the second coupling inductance that end connects the first coupling inductance device L1
The conducting electric current outflow end connection power supply of the port one of device L2, second switch device S2 is negative, the conducting of third switching device S3
Electric current flows into the port two that end connects the second coupling inductance device L2, and the conducting electric current outflow end connection of third switching device S3 is defeated
The port two of port one of the power supply just with the second capacitor element C2 out, first capacitor device C1 and the second capacitor element C2 connect electricity
Source is negative.
2. step-up/step-down circuit according to claim 1, it is characterised in that: the first coupling inductance device L1 and the second coupling
It closes inductance component L2 and is intercoupled together by sharing a magnetic core.
3. step-up/step-down circuit according to claim 1, it is characterised in that: the first coupling inductance device L1 and the second coupling
It is adjustable for closing the number of turns of inductance component L2.
4. step-up/step-down circuit according to claim 1, it is characterised in that: the first switch device S1, second switch
Device S2 and third switching device S3 is metal-oxide-semiconductor.
5. step-up/step-down circuit according to claim 1, it is characterised in that: the first switch device S1 and second switch
Device S2 is metal-oxide-semiconductor, and third switching device S3 is diode.
6. step-up/step-down circuit according to any one of claims 1 to 5, it is characterised in that: further include third coupling inductor
Part L3 is electric to+1 coupling inductance device L (X+1) of X, the 4th switching device S4 to+2 switching device S (X+2) of X and third
Container piece C3 to+1 capacitor element C (X+1) of X；The port one of third coupling inductance device L3 connects the first coupling inductance device
The port one of the port two of L1 and the second coupling inductance device L2, the 4th switch of the connection of port two of third coupling inductance device L3
The conducting electric current outflow end of device S4, the conducting electric current of the 4th switching device S4 flow into the second output electricity that end is step-up/step-down circuit
Just, the conducting electric current that the port one of third capacitor element C3 connects the 4th switching device S4 flows into end, third capacitor element C3 in source
To connect power supply negative for port two；……；The port one of+1 coupling inductance device L (X+1) of X connects the first coupling inductance device L1
Port two and the second coupling inductance device L2 port one, the port two of+1 coupling inductance device L (X+1) of X connects X+2
The conducting electric current outflow end of switching device S (X+2), it is lifting piezoelectricity that the conducting electric current of+2 switching device S (X+2) of X, which flows into end,
Just, the port one of+1 capacitor element C (X+1) of X connects the electric conduction of+2 switching device S (X+2) of X to the X out-put supply on road
Stream flows into end, and it is negative that the port two of+1 capacitor element C (X+1) of X connects power supply；X is the natural number more than or equal to 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342262.0A CN109327139A (en) | 2018-11-13 | 2018-11-13 | A kind of step-up/step-down circuit |
| PCT/CN2019/112795 WO2020098463A1 (en) | 2018-11-13 | 2019-10-23 | Buck-boost circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811342262.0A CN109327139A (en) | 2018-11-13 | 2018-11-13 | A kind of step-up/step-down circuit |
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| CN109327139A true CN109327139A (en) | 2019-02-12 |
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| CN201811342262.0A Withdrawn CN109327139A (en) | 2018-11-13 | 2018-11-13 | A kind of step-up/step-down circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071636A (en) * | 2019-05-30 | 2019-07-30 | 广东工业大学 | A kind of DC transfer circuit |
| WO2020098463A1 (en) * | 2018-11-13 | 2020-05-22 | 广州金升阳科技有限公司 | Buck-boost circuit |
| CN117526709A (en) * | 2024-01-05 | 2024-02-06 | 深圳市高斯宝电气技术有限公司 | Bidirectional direct current conversion circuit |
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| CN102290985A (en) * | 2011-08-12 | 2011-12-21 | 南京航空航天大学 | Coupling inductor based voltage boosting and reducing direct current (DC) converter |
| CN107517003A (en) * | 2017-08-31 | 2017-12-26 | 江苏大学 | One kind output inputs high-gain Boost translation circuits and switching method in parallel floatingly |
| CN209134302U (en) * | 2018-11-13 | 2019-07-19 | 广州金升阳科技有限公司 | A kind of step-up/step-down circuit |
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| US8773085B2 (en) * | 2011-03-22 | 2014-07-08 | Ledillion Technologies Inc. | Apparatus and method for efficient DC-to-DC conversion through wide voltage swings |
| US9698674B1 (en) * | 2015-12-30 | 2017-07-04 | Silicon Laboratories Inc. | Timing based approach for efficient switched mode power conversion |
| CN106208726B (en) * | 2016-07-14 | 2018-07-17 | 厦门大学 | A kind of voltage-type Quasi-Z-Source AC-AC converters |
| CN109327139A (en) * | 2018-11-13 | 2019-02-12 | 广州金升阳科技有限公司 | A kind of step-up/step-down circuit |
| CN109450258A (en) * | 2018-12-12 | 2019-03-08 | 亚瑞源科技（深圳）有限公司 | A kind of two-way BUCK BOOST route |
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2018
- 2018-11-13 CN CN201811342262.0A patent/CN109327139A/en not_active Withdrawn
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2019
- 2019-10-23 WO PCT/CN2019/112795 patent/WO2020098463A1/en active Application Filing
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| CN102290985A (en) * | 2011-08-12 | 2011-12-21 | 南京航空航天大学 | Coupling inductor based voltage boosting and reducing direct current (DC) converter |
| CN107517003A (en) * | 2017-08-31 | 2017-12-26 | 江苏大学 | One kind output inputs high-gain Boost translation circuits and switching method in parallel floatingly |
| CN209134302U (en) * | 2018-11-13 | 2019-07-19 | 广州金升阳科技有限公司 | A kind of step-up/step-down circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098463A1 (en) * | 2018-11-13 | 2020-05-22 | 广州金升阳科技有限公司 | Buck-boost circuit |
| CN110071636A (en) * | 2019-05-30 | 2019-07-30 | 广东工业大学 | A kind of DC transfer circuit |
| CN110071636B (en) * | 2019-05-30 | 2021-07-06 | 广东工业大学 | Direct current conversion circuit |
| CN117526709A (en) * | 2024-01-05 | 2024-02-06 | 深圳市高斯宝电气技术有限公司 | Bidirectional direct current conversion circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020098463A1 (en) | 2020-05-22 |
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Application publication date: 20190212 |