CN109639141A - A kind of booster circuit of double-tube series - Google Patents
A kind of booster circuit of double-tube series Download PDFInfo
- Publication number
- CN109639141A CN109639141A CN201910090427.8A CN201910090427A CN109639141A CN 109639141 A CN109639141 A CN 109639141A CN 201910090427 A CN201910090427 A CN 201910090427A CN 109639141 A CN109639141 A CN 109639141A
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- Prior art keywords
- diode
- power
- switch tube
- power switch
- resistance
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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
Abstract
The present invention discloses a kind of booster circuit of double-tube series, which includes: DC power supply DC, boost inductance L1, resistance R1, resistance R2, power switch tube Q1, power switch tube Q2, output bus filter capacitor C1, power diode D1, power diode D2, zener diode D3 and Transient Suppression Diode D4.The present invention need to only control power switch tube Q1, and power switch tube Q2 can be acted with the movement of power switch tube Q1, because there is no the problem of capacitance voltage unevenness, control are simple up and down in traditional symmetrical BOOST booster circuit without midpoint；DC source DC and the total cathode of output, so common mode interference problem is not present；A boost inductance L1 is only needed, and only needs driving circuit all the way, reduces system cost.
Description
Technical field
The present invention relates to field of power electronics more particularly to a kind of booster circuits of double-tube series.
Background technique
In order to reduce photovoltaic generating system cost, the inverter of present high-voltage system is more more and more universal, photovoltaic MPPT
(Maximum Power Point Tracking, MPPT maximum power point tracking) optimizing mostly uses Boost circuit, compares in the market
General power switch tube is difficult to bear higher voltage, so many producers realize MPPT with symmetrical BOOST circuit now
Optimizing function.The topology of symmetrical BOOST booster circuit is as shown in Figure 1, not due to power switch tube Q1 and power switch tube Q2
It is ideal component, can not realizes while turn on and off, so there can be upper and lower capacitor C1 and capacitor C2 voltage is uneven asks
Topic needs the timing by controlling power switch tube Q1 and power switch tube Q2 to realize capacitor voltage equalizing, and control is complicated；Due to mother
There are power switch tube Q1 and power switch tube Q2 between line output and DC source DC, cause output voltage over the ground between exist it is tight
Common mode interference is formed between the common-mode signal and the earth of weight；Symmetrical BOOST circuit needs two inductance, increases system cost.
Summary of the invention
It is an object of the invention to pass through a kind of booster circuit of double-tube series, mentioned to solve background section above
The problem of.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of booster circuit of double-tube series, the circuit include: DC power supply DC, boost inductance L1, resistance R1, resistance
It is R2, power switch tube Q1, power switch tube Q2, output bus filter capacitor C1, power diode D1, power diode D2, steady
Press diode D3 and Transient Suppression Diode (TVS) D4；Wherein, the anode of the DC power supply DC connects boost inductance L1's
One end, DC power supply DC cathode connection the anode of Transient Suppression Diode D4, the source electrode of power switch tube Q1, capacitor C1 one
End, the other end of boost inductance L1 and one end of resistance R1, power diode D1 anode, connect, Transient Suppression Diode D4
Cathode and resistance R2 series connection after with the other end of resistance R1, zener diode D3 cathode, connect, zener diode D3 is just
Pole is connect with the drain electrode of power switch tube Q1, source electrode, and the other end of capacitor C1 is connect with the cathode of power diode D2, power
The anode of diode D2 is connect with the cathode of power diode D1.
Power switch tube Q1 need to only be controlled in the booster circuit of double-tube series proposed by the present invention, power switch tube
Q2 can be acted with the movement of power switch tube Q1, because there is no traditional symmetrical BOOST boosting electricity without midpoint
The problem of capacitance voltage unevenness, control are simple up and down in road；DC source DC and the total cathode of output, so there is no common mode interferences to ask
Topic；A boost inductance L1 is only needed, and only needs driving circuit all the way, reduces system cost.
Detailed description of the invention
Fig. 1 is the topological structure schematic diagram of conventional symmetrical BOOST booster circuit；
Fig. 2 is photovoltaic power generation system structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 is the boost circuit structure figure of double-tube series provided in an embodiment of the present invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is makes to the more thorough of the disclosure understanding
Comprehensively.It should be noted that it can be directly to another when an element is considered as " connection " another element
Element may be simultaneously present centering elements.Unless otherwise defined, all technical and scientific terms used herein with
It is identical to belong to the normally understood meaning of those skilled in the art of the invention.Made in the description of the invention herein
Term, which is only for the purpose of describing specific embodiments, is not intended to limit the present invention.Term as used herein
" and/or " it include any and all combinations of one or more related listed items.
Shown in referring to figure 2., Fig. 2 is photovoltaic power generation system structure schematic diagram provided in an embodiment of the present invention.In this implementation
Photovoltaic generating system mainly includes that photovoltaic group string, photovoltaic DC-to-AC converter, grid-connected transformer etc. are constituted.Photovoltaic DC-to-AC converter mainly includes
Two parts DC/DC and DC/AC.Due to the individual difference or light differential of different photovoltaic modulies, each photovoltaic group is caused
The output voltage of string is different, passes through control DC/DC, it is ensured that every road photovoltaic group string can with maximum power output, from
And realize the function (MPPT) of maximum power tracing, improve the generating efficiency of inverter, the side DC/DC to the performance of inverter have to
Closing important must act on.Because Boost circuit control is relatively easy, and is easily achieved, the DC/DC of most of photovoltaic DC-to-AC converter
Circuit is all that the booster circuit of the double-tube series provided using Boost circuit, Examples below is in photovoltaic power generation system
Typical case in system.
As shown in figure 3, Fig. 3 is the boost circuit structure figure of double-tube series provided in an embodiment of the present invention.
The booster circuit of double-tube series specifically includes in the present embodiment: DC power supply DC, boost inductance L1, resistance R1, electricity
Hinder R2, power switch tube Q1, power switch tube Q2, output bus filter capacitor C1, power diode D1, power diode D2,
Zener diode D3 and Transient Suppression Diode D4；Wherein, the one of the anode connection boost inductance L1 of the DC power supply DC
End, DC power supply DC cathode connection the anode of Transient Suppression Diode D4, the source electrode of power switch tube Q1, capacitor C1 one
End, the other end of boost inductance L1 and one end of resistance R1, power diode D1 anode, connect, Transient Suppression Diode D4
Cathode and resistance R2 series connection after with the other end of resistance R1, zener diode D3 cathode, connect, zener diode D3 is just
Pole is connect with the drain electrode of power switch tube Q1, source electrode, and the other end of capacitor C1 is connect with the cathode of power diode D2, power
The anode of diode D2 is connect with the cathode of power diode D1.
When work, when digital signal processor (DSP) gives one high level signal of gate pole of power switch tube Q1, power
Switching tube Q1 starts open-minded, and with being gradually turned on for power switch tube Q1, power switch tube Q1 drain potential is gradually decreased, clamper
Diode D3 bears back-pressure, and clamp diode D3 is by the pressure stabilizing of the voltage clamping of power switch tube Q2 gate pole to clamp diode D3
Value, power switch tube Q2 conducting, at this time boost inductance L1 energy storage.When DSP is to one low level letter of gate pole of power switch tube Q1
Number when, power switch tube Q1 is begun to turn off, and with the gradually shutdown of power switch tube Q1, power switch tube Q1 drain potential is gradually
It increases, when being increased to the breakdown voltage of clamp diode D4, clamp diode D3 is not subjected to back-pressure, power switch tube
The voltage of Q2 gate pole declines, and power switch tube Q2 shutdown, boost inductance L1 and DC source DC passes through diode D1 and two poles at this time
Pipe D2 releases energy to bus.In summary, of the invention: one, power switch tube Q1 need to only to be controlled, power switch tube Q2
It can be acted with the movement of power switch tube Q1, because traditional symmetrical BOOST booster circuit is not present without midpoint
In capacitance voltage unevenness up and down problem, control is simply；Two, DC source DC and the total cathode of output, so common mode interference is not present
Problem；Three, compared with conventional symmetrical BOOST booster circuit, it is only necessary to a boost inductance L1, and only need to drive electricity all the way
Road significantly reduces system cost.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (1)
1. a kind of booster circuit of double-tube series characterized by comprising DC power supply DC, boost inductance L1, resistance R1, electricity
Hinder R2, power switch tube Q1, power switch tube Q2, output bus filter capacitor C1, power diode D1, power diode D2,
Zener diode D3 and Transient Suppression Diode D4；Wherein, the one of the anode connection boost inductance L1 of the DC power supply DC
End, DC power supply DC cathode connection the anode of Transient Suppression Diode D4, the source electrode of power switch tube Q1, capacitor C1 one
End, the other end of boost inductance L1 and one end of resistance R1, power diode D1 anode, connect, Transient Suppression Diode D4
Cathode and resistance R2 series connection after with the other end of resistance R1, zener diode D3 cathode, connect, zener diode D3 is just
Pole is connect with the drain electrode of power switch tube Q1, source electrode, and the other end of capacitor C1 is connect with the cathode of power diode D2, power
The anode of diode D2 is connect with the cathode of power diode D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090427.8A CN109639141A (en) | 2019-01-30 | 2019-01-30 | A kind of booster circuit of double-tube series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090427.8A CN109639141A (en) | 2019-01-30 | 2019-01-30 | A kind of booster circuit of double-tube series |
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| Publication Number | Publication Date |
|---|---|
| CN109639141A true CN109639141A (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910090427.8A Pending CN109639141A (en) | 2019-01-30 | 2019-01-30 | A kind of booster circuit of double-tube series |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541476A (en) * | 2021-07-19 | 2021-10-22 | 北京信息科技大学 | Symmetric double-Boost circuit based on soft switch and implementation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201966801U (en) * | 2011-02-23 | 2011-09-07 | 英飞特电子（杭州）有限公司 | Voltage resistance circuit |
| CN103795243A (en) * | 2014-01-17 | 2014-05-14 | 无锡市金赛德电子有限公司 | Double-tube series-connection booster circuit |
| US9595871B1 (en) * | 2015-12-21 | 2017-03-14 | Texas Instruments Deutschland Gmbh | High efficiency inductive capacitive DC-DC converter |
-
2019
- 2019-01-30 CN CN201910090427.8A patent/CN109639141A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201966801U (en) * | 2011-02-23 | 2011-09-07 | 英飞特电子（杭州）有限公司 | Voltage resistance circuit |
| CN103795243A (en) * | 2014-01-17 | 2014-05-14 | 无锡市金赛德电子有限公司 | Double-tube series-connection booster circuit |
| US9595871B1 (en) * | 2015-12-21 | 2017-03-14 | Texas Instruments Deutschland Gmbh | High efficiency inductive capacitive DC-DC converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541476A (en) * | 2021-07-19 | 2021-10-22 | 北京信息科技大学 | Symmetric double-Boost circuit based on soft switch and implementation method |
| CN113541476B (en) * | 2021-07-19 | 2022-12-02 | 北京信息科技大学 | Symmetric double-Boost circuit based on soft switch and implementation method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
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