CN107086775A - A kind of DC DC converters and booster system - Google Patents
A kind of DC DC converters and booster system Download PDFInfo
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- CN107086775A CN107086775A CN201710463966.2A CN201710463966A CN107086775A CN 107086775 A CN107086775 A CN 107086775A CN 201710463966 A CN201710463966 A CN 201710463966A CN 107086775 A CN107086775 A CN 107086775A
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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
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Abstract
The invention discloses a kind of DC DC converters and booster system, including switching tube, major loop storage capacitor, the sub- diode of major loop, the first active impedance network and structure for first class boost are different from the first active impedance network, the second active impedance network for two grades of boostings, the first end of first active impedance network and the positive pole of dc source are connected, second end of the first active impedance network is connected with the first end of major loop storage capacitor and the first end of switching tube respectively, the negative pole of second end of switching tube respectively with dc source, the first end of second active impedance network and one end connection of load, anode of second end of the second active impedance network respectively with the second end of major loop storage capacitor and the sub- diode of major loop is connected, the negative electrode of the sub- diode of major loop is connected with the other end loaded.The application has only used a switching tube, on the one hand, cost is low, is lost small；On the other hand, convenient control, substantially increases stability and reliability.
Description
Technical field
The present invention relates to energy conversion technique field, more particularly to a kind of DC-DC converter and booster system.
Background technology
With life and industrial expansion, requirement of the people to Power Electronic Circuit also more and more higher.In many applied fields
Jing Zhong, generally requires to carry out lifting voltage using the DC-DC converter with high-gain.For example, in new energy resources system, photovoltaic,
The direct current of the generator units such as fuel cell output just needs to use the DC-DC converter of high-gain first to carry out voltage increase, so
It can just be connected to the grid and use afterwards.
High-gain often is realized using the cascade of multiple DC-DC converters in the prior art, such as two grades Boost circuits, but
Which increase the quantity of the switching tube used, on the one hand, cost is high, loss is big；On the other hand, once wherein some link collapses
Burst, then can cause the collapse of whole booster system, greatly reduce the stability and reliability of booster system.
Therefore, how to provide a kind of scheme for solving above-mentioned technical problem is that those skilled in the art need solution at present
Problem.
The content of the invention
It is an object of the invention to provide a kind of DC-DC converter and booster system, a switching tube has only been used, on the one hand,
Cost is low, is lost small；On the other hand, convenient control, substantially increases stability and reliability.
In order to solve the above technical problems, the invention provides a kind of DC-DC converter, applied to the liter including dc source
Pressure system, including switching tube, major loop storage capacitor, major loop diode, the first active impedance network for first class boost
The first active impedance network, the second active impedance network for two grades of boostings are different from structure, wherein：
The first end of the first active impedance network is connected with the positive pole of the dc source, first active impedance
Second end of network is connected with the first end of the major loop storage capacitor and the first end of the switching tube respectively, the switch
Second end of pipe negative pole respectively with the dc source, the one of the first end of the second active impedance network and the load
End connection, the second end of the second active impedance network is returned with the second end of the major loop storage capacitor and the master respectively
The anode connection of road diode, the negative electrode of the major loop diode is connected with the other end of the load.
Preferably, the first active impedance network or the second active impedance network include the first sub- inductance, the
Two sub- inductance, the first sub- diode, the second sub- diode and the sub- electric capacity of the first energy storage, wherein：
The anode of the first sub- diode is connected with the first end of the described first sub- inductance, and its common port is used as described
The first end of one active impedance network or the second active impedance network, the negative electrode of the first sub- diode respectively with institute
State the first end of the second sub- inductance and the negative electrode connection of the second sub- diode, the second end of the first sub- inductance respectively with
The first end connection of the anode of the second sub- diode and the sub- electric capacity of the first energy storage, the of the sub- electric capacity of the first energy storage
Two ends are connected with the second end of the described second sub- inductance, and its common port is used as the first active impedance network or described second
Second end of active impedance network.
Preferably, the first active impedance network or the second active impedance network include the 3rd sub- inductance, the
Four sub- inductance, the 3rd sub- diode, the 4th sub- diode and the sub- electric capacity of the second energy storage, wherein：
The first end of the 3rd sub- inductance is connected with the anode of the 3rd sub- diode, and its common port is used as described
The first end of one active impedance network or the second active impedance network, the negative electrode of the 3rd sub- diode respectively with institute
State the first end of the 4th sub- inductance and the first end connection of the sub- electric capacity of the second energy storage, the second of the sub- electric capacity of the second energy storage
End is connected with the anode of the 4th sub- diode and the second end of the 3rd sub- inductance respectively, the 4th sub- diode
Negative electrode is connected with the second end of the 4th sub- inductance, and its common port is used as the first active impedance network or described second
Second end of active impedance network.
Preferably, the first active impedance network or the second active impedance network include the 5th sub- inductance, the
Six sub- inductance, the 5th sub- diode, the 6th sub- diode and the 7th sub- diode, wherein：
The first end of the 5th sub- inductance is connected with the anode of the 5th sub- diode, and its common port is used as described
The first end of one active impedance network or the second active impedance network, the negative electrode of the 5th sub- diode respectively with institute
State the first end of the 6th sub- inductance and the negative electrode connection of the 7th sub- diode, the anode of the 7th sub- diode respectively with
Second end of the 5th sub- inductance and the anode connection of the 6th sub- diode, the negative electrode of the 6th sub- diode and institute
The second end connection of the 6th sub- inductance is stated, its common port is used as the first active impedance network or second active impedance
Second end of network.
Preferably, the first active impedance network or the second active impedance network include the 7th sub- inductance, the
Eight sub- inductance, the 8th sub- diode, the 9th sub- diode and the 3rd sub- electric capacity of energy storage, wherein：
The first end of the 7th sub- inductance is connected with the first end of the sub- electric capacity of the 3rd energy storage, and its common port is used as institute
State the first end of the first active impedance network or the second active impedance network, the second end of the sub- electric capacity of the 3rd energy storage
It is connected respectively with the first end of the 8th sub- inductance and the negative electrode of the 9th sub- diode, the sun of the 9th sub- diode
Pole is connected with the anode of the 8th sub- diode and the second end of the 7th sub- inductance respectively, the 8th sub- diode
Negative electrode is connected with the second end of the 8th sub- inductance, and its common port is used as the first active impedance network or described second
Second end of active impedance network.
Preferably, the first active impedance network or the second active impedance network include the 9th sub- inductance, the
Ten sub- inductance, the 4th sub- electric capacity of energy storage, the 5th sub- electric capacity of energy storage and the tenth sub- diode, wherein：
The first end of the 9th sub- inductance is connected with the first end of the sub- electric capacity of the 4th energy storage, and its common port is used as institute
State the first end of the first active impedance network or the second active impedance network, the second end of the sub- electric capacity of the 4th energy storage
It is connected respectively with the first end of the tenth sub- inductance and the negative electrode of the tenth sub- diode, the sun of the tenth sub- diode
Pole is connected with the second end of the 9th sub- inductance and the first end of the sub- electric capacity of the 5th energy storage respectively, the 5th energy storage
Second end of electric capacity is connected with the second end of the tenth sub- inductance, its common port as the first active impedance network or
Second end of the second active impedance network.
Preferably, the switching tube is NMOS, wherein, the drain electrode of the NMOS is used as the first end of the switching tube, institute
The source electrode for stating NMOS is used as the second end of the switching tube.
Preferably, the switching tube is IGBT, wherein, the colelctor electrode of the IGBT as the switching tube first end,
The emitter stage of the IGBT as the switching tube the second end.
In order to solve the above technical problems, the invention provides a kind of booster system, including dc source, in addition to as described above
Described DC-DC converter.
Preferably, the dc source is solar panel.
The invention provides a kind of DC-DC converter, including switching tube, major loop storage capacitor, the sub- diode of major loop,
The first active impedance network and structure for first class boost are different from the first active impedance network, second for two grades of boostings
Active impedance network, the first end of the first active impedance network and the positive pole of dc source are connected, the first active impedance network
Second end is connected with the first end of major loop storage capacitor and the first end of switching tube respectively, the second end of switching tube respectively with directly
Flow negative pole, the first end of the second active impedance network and the connection of one end of load of power supply, the second of the second active impedance network
The anode respectively with the second end of major loop storage capacitor and the sub- diode of major loop is held to be connected, the negative electrode of the sub- diode of major loop
It is connected with the other end of load.
It can be seen that, the application is only carried out by the first active impedance network, the second active impedance network and a switching tube
Two grades of boostings, realize high-gain, compared with two grades of Boost circuits of the prior art, the application has only used a switching tube, one
Aspect, cost is low, is lost small；On the other hand, convenient control, substantially increases stability and reliability.
The booster system that the present invention is provided equally has as above beneficial effect.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
A kind of structural representation for DC-DC converter that Fig. 1 provides for the present invention；
A kind of structural representation for active impedance network that Fig. 2 provides for the present invention；
The structural representation for another active impedance network that Fig. 3 provides for the present invention；
The structural representation for another active impedance network that Fig. 4 provides for the present invention；
The structural representation for another active impedance network that Fig. 5 provides for the present invention；
The structural representation for another active impedance network that Fig. 6 provides for the present invention；
A kind of structural representation for specifically DC-DC converter that Fig. 7 provides for the present invention；
Fig. 8 is a kind of fundamental diagram of the DC-DC converter shown in Fig. 7；
Fig. 9 is another fundamental diagram of the DC-DC converter shown in Fig. 7.
Embodiment
The core of the present invention is to provide a kind of DC-DC converter and booster system, has only used a switching tube, on the one hand,
Cost is low, is lost small；On the other hand, convenient control, substantially increases stability and reliability.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Refer to Fig. 1, a kind of structural representation for DC-DC converter that Fig. 1 provides for the present invention, the converter applications in
Booster system including dc source, including switching tube Q, major loop storage capacitor C01, major loop diode D01, for one-level
The the first active impedance network 1 and structure of boosting are different from the first active impedance network 1, the second active resistance for two grades of boostings
Anti- network 2, wherein：
The first end of first active impedance network 1 and the positive pole of dc source are connected, and the second of the first active impedance network 1
End respectively with major loop storage capacitor C01First end and switching tube Q first end connection, switching tube Q the second end respectively with directly
Flow the negative pole of power supply, the first end of the second active impedance network 2 and the connection of one end of load, the of the second active impedance network 2
Two ends respectively with major loop storage capacitor C01The second end and major loop diode D01Anode connection, major loop diode D01
Negative electrode with load the other end be connected.
It is understood that using the first active impedance network 1 as first order boost module in the application, it is active by second
Impedance network 2 realizes the boosting to DC power output voltage as second level boost module.In addition, active in the application
Impedance network is made up of electric capacity and/or inductance and/or diode, not including switching tube Q.
Specifically, when switching tube Q is turned on, dc source charges to the second active impedance network 2；Switching tube Q is closed
When disconnected, the first active impedance network 1 series connection major loop storage capacitor C01It is load supplying jointly with the second active impedance network 2,
A switching tube Q is only used in whole process, the effect of wide gain Boost circuit is just realized.
The invention provides a kind of DC-DC converter, including switching tube, major loop storage capacitor, the sub- diode of major loop,
The first active impedance network and structure for first class boost are different from the first active impedance network, second for two grades of boostings
Active impedance network, the first end of the first active impedance network and the positive pole of dc source are connected, the first active impedance network
Second end is connected with the first end of major loop storage capacitor and the first end of switching tube respectively, the second end of switching tube respectively with directly
Flow negative pole, the first end of the second active impedance network and the connection of one end of load of power supply, the second of the second active impedance network
The anode respectively with the second end of major loop storage capacitor and the sub- diode of major loop is held to be connected, the negative electrode of the sub- diode of major loop
It is connected with the other end of load.
It can be seen that, the application is only carried out by the first active impedance network, the second active impedance network and a switching tube
Two grades of boostings, realize high-gain, compared with two grades of Boost circuits of the prior art, the application has only used a switching tube, one
Aspect, cost is low, is lost small；On the other hand, convenient control, substantially increases stability and reliability.
On the basis of a upper embodiment：
As a kind of preferred embodiment, the first active impedance network 1 or the second active impedance network 2 include the first son
Inductance L1, the second sub- inductance L2, the first sub- diode D1, the second sub- diode D2And the first sub- electric capacity C of energy storage1, wherein：
First sub- diode D1Anode and the first sub- inductance L1First end connection, its common port is used as the first active resistance
The first end of the anti-active impedance network 2 of network 1 or second, the first sub- diode D1Negative electrode respectively with the second sub- inductance L2's
First end and the second sub- diode D2Negative electrode connection, the first sub- inductance L1The second end respectively with the second sub- diode D2Sun
Pole and the sub- electric capacity C of the first energy storage1First end connection, the sub- electric capacity C of the first energy storage1The second end and the second sub- inductance L2Second
End connection, its common port as the first active impedance network 1 or the second active impedance network 2 the second end.
Specifically, Fig. 2, a kind of structural representation for active impedance network that Fig. 2 provides for the present invention be refer to.
Firstly the need of explanation, the selection of each inductance value and capacitance in the application be not it is fixed, according to
Actual conditions are selected.
As a kind of preferred embodiment, the first active impedance network 1 or the second active impedance network 2 include the 3rd son
Inductance L3, the 4th sub- inductance L4, the 3rd sub- diode D3, the 4th sub- diode D4And the second sub- electric capacity C of energy storage2, wherein：
3rd sub- inductance L3First end and the 3rd sub- diode D3Anode connection, its common port is used as the first active resistance
The first end of the anti-active impedance network 2 of network 1 or second, the 3rd sub- diode D3Negative electrode respectively with the 4th sub- inductance L4's
First end and the sub- electric capacity C of the second energy storage2First end connection, the sub- electric capacity C of the second energy storage2The second end respectively with the 4th sub two pole
Pipe D4Anode and the 3rd sub- inductance L3The second end connection, the 4th sub- diode D4Negative electrode and the 4th sub- inductance L4Second
End connection, its common port as the first active impedance network 1 or the second active impedance network 2 the second end.
Specifically, Fig. 3, the structural representation for another active impedance network that Fig. 3 provides for the present invention be refer to.
As a kind of preferred embodiment, the first active impedance network 1 or the second active impedance network 2 include the 5th son
Inductance L5, the 6th sub- inductance L6, the 5th sub- diode D5, the 6th sub- diode D6And the 7th sub- diode D7, wherein：
5th sub- inductance L5First end and the 5th sub- diode D5Anode connection, its common port is used as the first active resistance
The first end of the anti-active impedance network 2 of network 1 or second, the 5th sub- diode D5Negative electrode respectively with the 6th sub- inductance L6's
First end and the 7th sub- diode D7Negative electrode connection, the 7th sub- diode D7Anode respectively with the 5th sub- inductance L5Second
End and the 6th sub- diode D6Anode connection, the 6th sub- diode D6Negative electrode and the 6th sub- inductance L6The second end connection, its
Common port as the first active impedance network 1 or the second active impedance network 2 the second end.
Specifically, Fig. 4, the structural representation for another active impedance network that Fig. 4 provides for the present invention be refer to.
As a kind of preferred embodiment, the first active impedance network 1 or the second active impedance network 2 include the 7th son
Inductance L7, the 8th sub- inductance L8, the 8th sub- diode D8, the 9th sub- diode D9And the 3rd sub- electric capacity C of energy storage3, wherein：
7th sub- inductance L7First end and the sub- electric capacity C of the 3rd energy storage3First end connection, its common port has as first
The first end of the active impedance network 2 of source impedance network 1 or second, the sub- electric capacity C of the 3rd energy storage3The second end respectively with the 8th son
Inductance L8First end and the 9th sub- diode D9Negative electrode connection, the 9th sub- diode D9Anode respectively with the 8th sub two pole
Pipe D8Anode and the 7th sub- inductance L7The second end connection, the 8th sub- diode D8Negative electrode and the 8th sub- inductance L8Second
End connection, its common port as the first active impedance network 1 or the second active impedance network 2 the second end.
Specifically, Fig. 5, the structural representation for another active impedance network that Fig. 5 provides for the present invention be refer to.
As a kind of preferred embodiment, the first active impedance network 1 or the second active impedance network 2 include the 9th son
Inductance L9, the tenth sub- inductance L10, the sub- electric capacity C of the 4th energy storage4, the sub- electric capacity C of the 5th energy storage5And the tenth sub- diode D10, wherein：
9th sub- inductance L9First end and the sub- electric capacity C of the 4th energy storage4First end connection, its common port has as first
The first end of the active impedance network 2 of source impedance network 1 or second, the sub- electric capacity C of the 4th energy storage4The second end respectively with the tenth son
Inductance L10First end and the tenth sub- diode D10Negative electrode connection, the tenth sub- diode D10Anode respectively with the 9th son electricity
Feel L9The second end and the sub- electric capacity C of the 5th energy storage5First end connection, the sub- electric capacity C of the 5th energy storage5The second end with the tenth son electricity
Feel L10The second end connection, its common port as the first active impedance network 1 or the second active impedance network 2 the second end.
Specifically, Fig. 6, the structural representation for another active impedance network that Fig. 6 provides for the present invention be refer to.
In actual applications, the first active impedance network 1 or the second active impedance network 2 can be active in satisfaction first
Impedance network 1 is different from any impedance network selected in Fig. 2-Fig. 6 under conditions of the second active impedance network 2, certainly, may be used also
To select other kinds of impedance network, the purpose of the application disclosure satisfy that.
As a kind of preferred embodiment, switching tube Q is NMOS, wherein, NMOS drain electrode is used as the first of switching tube Q
End, NMOS source electrode as switching tube Q the second end.
As a kind of preferred embodiment, switching tube Q is IGBT, wherein, IGBT colelctor electrode is used as the first of switching tube Q
End, IGBT emitter stage as switching tube Q the second end.
Specifically, in actual applications, if the electric current in DC-DC converter is very big, switching tube Q here can also be
By multiple NMOS NMOS modules in parallel, or for by IGBT module in parallel multiple IGBT.
In addition, switching tube Q here is also an option that other kinds of switching tube Q, the application does not do special limit herein
It is fixed, determined according to actual conditions.
For convenience of the understanding to the application, the course of work of the application is described with reference to an instantiation, please be join
According to Fig. 7, a kind of structural representation for specifically DC-DC converter that Fig. 7 provides for the present invention.In the example, the first active resistance
Anti- network 1 be specially two grades of active impedance networks, and the first active impedance network 1 for as shown in Figure 2 in active impedance network,
Second active impedance network 2 for as shown in Figure 3 in active impedance network, then：
Stage 1：
Fig. 8 is refer to, Fig. 8 is a kind of fundamental diagram of the DC-DC converter shown in Fig. 7.
Switching tube Q is turned on, now the sub- diode D of diode first1, the 4th sub- diode D4With the 3rd sub- diode D3Lead
It is logical, the second sub- diode D2With major loop diode D01It is off state.Circuit forms single three loops, is respectively：
Dc source is to the second sub- inductance L in parallel2Branch road and the first sub- inductance L1Formed back respectively with the first sub- capacitive series branch
Road, is charged；Major loop storage capacitor C01To the 3rd sub- inductance L in parallel3Branch road, the 4th sub- inductance L4Branch road and the second storage
Energon electric capacity C2Branch road forms loop respectively, is charged；Load capacitance constitutes loop with load, and transmits energy.
Stage 2：
Fig. 9 is refer to, Fig. 9 is another fundamental diagram of the DC-DC converter shown in Fig. 7.
Switching tube Q is turned off, now the second sub- diode D2With major loop diode D01Conducting, the first sub- diode D1,
Three sub- diode D3With the 4th sub- diode D4It is off state.First sub- inductance L1Connect the second sub- inductance L2With the first storage
The parallel branch of energon electric capacity formation, then the major loop storage capacitor C that connects01, for load (load capacitance and load parallel branch)
Energy is provided.3rd sub- inductance L3The sub- electric capacity C of second energy storage of connecting2Again with the 4th sub- inductance L4Series connection, for load (load capacitance
With load parallel branch) energy is provided.
During switching tube Q is turned on, the second sub- inductance L2Branch road and the first sub- inductance L1With the sub- capacitive series branch of the first energy storage
Dc source two ends are parallel to respectively, and two branch voltages are respectively equal to direct current power source voltage, there is formula：
ON time is DT；3rd sub- inductance L3With the 4th sub- inductance L4The sub- electric capacity C of the second energy storage is parallel to respectively2Two
End, its voltage is equal to the sub- electric capacity C of the second energy storage2Both end voltage VC2, there is formula：VL3=VL4=VC2, ON time is DT.Wherein,
T is switch periods, VL1、VL2、VL3And VL4It is the first sub- inductance L respectively1, the second sub- inductance L2, the 3rd sub- inductance L3With the 4th son
Inductance L4Voltage.Major loop storage capacitor C01Inductance L to the 3rd respectively3Branch road, the 4th sub- inductance L4Branch road, the second energy storage
Sub- electric capacity C2Branch road is charged.Therefore there is formula as follows：
VL3=VL4=VC2=VC01 (3)
During switching tube Q is turned off, the first sub- inductance L1, the second sub- inductance L2Through the second sub- diode D2, to major loop energy storage
Electric capacity C01Release energy, major loop storage capacitorC01Energy storage, there is expression formula：
VL1'=Vs-VC1-VC01-VL (4)
Branch road：3rd sub- inductance L3The sub- electric capacity C of second energy storage of connecting2, series connection the 4th sub- inductance L4Through major loop diode D01
Power to the load, and have
V'L3+V'L4-VC2=-VL (6)
ON time is (1-D) T.
Analyze, according to inductance Flux consumption conservation principle, have more than：
For the first sub- inductance L1：
(Vs-VC1)DT+(Vs-VC1-VC01-VL) (1-D) T=0 (7)
For the second sub- inductance L2：
For the 3rd sub- inductance L3With the 4th sub- inductance L4, have
Simultaneous formula (1)-(9) can be obtained：
It can thus be seen that a kind of wide output voltage range DC-DC with less active device of the present invention becomes
The voltage gain M of parallel operation is：
It should be noted that due to the selection of the first active impedance network 1 and the second active impedance network 2 in the application
With diversity, selection is different, and final voltage gain M may also be different.
In order to solve the above technical problems, the invention provides a kind of booster system, including dc source, in addition to as described above
DC-DC converter.
A kind of introduction of the booster system provided for the present invention refer to above-described embodiment, and the present invention no longer goes to live in the household of one's in-laws on getting married herein
State.
As a kind of preferred embodiment, dc source is solar panel.
Certainly, dc source here can also be other kinds of dc source, such as wind power generation unit, the application
It is not particularly limited herein.
It should be noted that in this manual, such as first and second or the like relational terms are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include those
Key element, but also other key elements including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of DC-DC converter, applied to the booster system including dc source, it is characterised in that including switching tube, lead back
Road storage capacitor, major loop diode, the first active impedance network and structure for first class boost are different from described first has
Source impedance network, the second active impedance network for two grades of boostings, wherein：
The first end of the first active impedance network is connected with the positive pole of the dc source, the first active impedance network
The second end be connected respectively with the first end of the major loop storage capacitor and the first end of the switching tube, the switching tube
Negative pole, the first end of the second active impedance network and the one end of the load of second end respectively with the dc source connect
Connect, the second end of the second active impedance network the second end respectively with the major loop storage capacitor and the major loop two
The anode connection of pole pipe, the negative electrode of the major loop diode is connected with the other end of the load.
2. DC-DC converter as claimed in claim 1, it is characterised in that the first active impedance network or described
Two active impedance networks include the first sub- inductance, the second sub- inductance, the first sub- diode, the second sub- diode and the first energy storage
Electric capacity, wherein：
The anode of the first sub- diode is connected with the first end of the described first sub- inductance, and its common port has as described first
The first end of source impedance network or the second active impedance network, the negative electrode of the first sub- diode is respectively with described
The negative electrode connection of the first end of two sub- inductance and the second sub- diode, the second end of the first sub- inductance respectively with it is described
The first end connection of the anode of second sub- diode and the sub- electric capacity of the first energy storage, the second end of the sub- electric capacity of the first energy storage
It is connected with the second end of the described second sub- inductance, its common port is used as the first active impedance network or described second active
Second end of impedance network.
3. DC-DC converter as claimed in claim 1, it is characterised in that the first active impedance network or described
Two active impedance networks include the 3rd sub- inductance, the 4th sub- inductance, the 3rd sub- diode, the 4th sub- diode and the second energy storage
Electric capacity, wherein：
The first end of the 3rd sub- inductance is connected with the anode of the 3rd sub- diode, and its common port has as described first
The first end of source impedance network or the second active impedance network, the negative electrode of the 3rd sub- diode is respectively with described
The first end of four sub- inductance and the connection of the first end of the sub- electric capacity of the second energy storage, the second end point of the sub- electric capacity of the second energy storage
It is not connected with the anode of the 4th sub- diode and the second end of the 3rd sub- inductance, the negative electrode of the 4th sub- diode
It is connected with the second end of the 4th sub- inductance, its common port is used as the first active impedance network or described second active
Second end of impedance network.
4. DC-DC converter as claimed in claim 1, it is characterised in that the first active impedance network or described
Two active impedance networks include the 5th sub- inductance, the 6th sub- inductance, the 5th sub- diode, the 6th sub- diode and the 7th sub two pole
Pipe, wherein：
The first end of the 5th sub- inductance is connected with the anode of the 5th sub- diode, and its common port has as described first
The first end of source impedance network or the second active impedance network, the negative electrode of the 5th sub- diode is respectively with described
The negative electrode connection of the first end of six sub- inductance and the 7th sub- diode, the anode of the 7th sub- diode respectively with it is described
The anode connection of second end of the 5th sub- inductance and the 6th sub- diode, the negative electrode of the 6th sub- diode and described the
The second end connection of six sub- inductance, its common port is used as the first active impedance network or the second active impedance network
The second end.
5. DC-DC converter as claimed in claim 1, it is characterised in that the first active impedance network or described
Two active impedance networks include the 7th sub- inductance, the 8th sub- inductance, the 8th sub- diode, the 9th sub- diode and the 3rd energy storage
Electric capacity, wherein：
The first end of the 7th sub- inductance is connected with the first end of the sub- electric capacity of the 3rd energy storage, and its common port is used as described
The first end of one active impedance network or the second active impedance network, the second end difference of the sub- electric capacity of the 3rd energy storage
It is connected with the first end of the 8th sub- inductance and the negative electrode of the 9th sub- diode, the anode point of the 9th sub- diode
It is not connected with the anode of the 8th sub- diode and the second end of the 7th sub- inductance, the negative electrode of the 8th sub- diode
It is connected with the second end of the 8th sub- inductance, its common port is used as the first active impedance network or described second active
Second end of impedance network.
6. DC-DC converter as claimed in claim 1, it is characterised in that the first active impedance network or described
Two active impedance networks include the 9th sub- inductance, the tenth sub- inductance, the 4th sub- electric capacity of energy storage, the 5th sub- electric capacity of energy storage and the tenth son
Diode, wherein：
The first end of the 9th sub- inductance is connected with the first end of the sub- electric capacity of the 4th energy storage, and its common port is used as described
The first end of one active impedance network or the second active impedance network, the second end difference of the sub- electric capacity of the 4th energy storage
It is connected with the first end of the tenth sub- inductance and the negative electrode of the tenth sub- diode, the anode point of the tenth sub- diode
It is not connected with the second end of the 9th sub- inductance and the first end of the sub- electric capacity of the 5th energy storage, the sub- electric capacity of the 5th energy storage
The second end be connected with the second end of the tenth sub- inductance, its common port is used as the first active impedance network or described
Second end of the second active impedance network.
7. the DC-DC converter as described in claim any one of 1-6, it is characterised in that the switching tube is NMOS, wherein,
The drain electrode of the NMOS as the switching tube first end, the source electrode of the NMOS as the switching tube the second end.
8. the DC-DC converter as described in claim any one of 1-6, it is characterised in that the switching tube is IGBT, wherein,
The colelctor electrode of the IGBT is as the first end of the switching tube, and the emitter stage of the IGBT is used as the second of the switching tube
End.
9. a kind of booster system, it is characterised in that including dc source, in addition to the DC- as described in claim any one of 1-8
DC converters.
10. booster system as claimed in claim 9, it is characterised in that the dc source is solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710463966.2A CN107086775A (en) | 2017-06-19 | 2017-06-19 | A kind of DC DC converters and booster system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710463966.2A CN107086775A (en) | 2017-06-19 | 2017-06-19 | A kind of DC DC converters and booster system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490620A (en) * | 2013-09-16 | 2014-01-01 | 华南理工大学 | Wide-gain sepic converter |
| CN103825457A (en) * | 2014-02-24 | 2014-05-28 | 华南理工大学 | Quasi-Z-source DC-DC boost converter circuit |
| CN205407589U (en) * | 2016-03-10 | 2016-07-27 | 兰州交通大学 | High voltage gain's DCDC booster converter circuit |
| CN207399033U (en) * | 2017-06-19 | 2018-05-22 | 广东工业大学 | A kind of DC-DC converter and booster system |
-
2017
- 2017-06-19 CN CN201710463966.2A patent/CN107086775A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490620A (en) * | 2013-09-16 | 2014-01-01 | 华南理工大学 | Wide-gain sepic converter |
| CN103825457A (en) * | 2014-02-24 | 2014-05-28 | 华南理工大学 | Quasi-Z-source DC-DC boost converter circuit |
| CN205407589U (en) * | 2016-03-10 | 2016-07-27 | 兰州交通大学 | High voltage gain's DCDC booster converter circuit |
| CN207399033U (en) * | 2017-06-19 | 2018-05-22 | 广东工业大学 | A kind of DC-DC converter and booster system |
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