CN101478253A - Single-phase voltage-boosting push-pull inverter circuit - Google Patents
Single-phase voltage-boosting push-pull inverter circuit Download PDFInfo
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- CN101478253A CN101478253A CNA2009100369640A CN200910036964A CN101478253A CN 101478253 A CN101478253 A CN 101478253A CN A2009100369640 A CNA2009100369640 A CN A2009100369640A CN 200910036964 A CN200910036964 A CN 200910036964A CN 101478253 A CN101478253 A CN 101478253A
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- inverter circuit
- push
- voltage
- pull inverter
- switching tube
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Abstract
The invention provides a single-phase voltage-booster push-pull inverter circuit, which comprises a single-phase push-pull inverter circuit link and a voltage-booster circuit link, and is characterized in that the voltage-booster circuit link comprises a voltage-booster inductor (L), a first diode (D1), a second diode (D2), a first switching tube (Q1) and an energy storage capacitor (C); the single-phase push-pull inverter circuit link comprises the first switching tube (Q1), a second switching tube (Q2), the energy storage capacitor (C) and a transformer (T1); the voltage-booster circuit link and the push-pull inverter circuit link share the switching tube (Q1) to form the single-phase voltage-booster push-pull inverter circuit; and the whole circuit only adopts two switching tubes, so that the cost is lowered, the complexity of a control circuit is reduced, and the reliability of the circuit is enhanced. Through the modulation of the voltage-booster circuit link, the peak value of output voltage of the inverter circuit is increased, and the inverter circuit is applied to the application settings within a wide output alternating voltage range.
Description
Technical field
The present invention relates to recommend the inverter technology field, be specifically related to a kind of single-phase voltage-boosting push-pull inverter circuit.
Background technology
At present extensively the single-phase inversion circuit that adopts single-phasely often recommend, traditional inverter circuits such as semi-bridge inversion and full-bridge inverting, still, the shortcoming that these circuit exist is that the voltage range of output is limited, generally is subject to the turn ratio of input voltage and isolating transformer.And some circuit, directly add a Boost circuit in the single-phase front of recommending, to improve input voltage, thereby make the voltage peak of single-phase push-pull inverter circuit output obtain corresponding lifting, as shown in Figure 1, higher but the cost of sort circuit compares, and also entire circuit needs 3 switching tubes at least, not only control complexity and rise, and stability and reliability is lower, volume is bigger.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of single-phase voltage-boosting push-pull inverter circuit is provided.The present invention is actually Boost circuit link and conventional single-phase push-pull inverter circuit link is integrated and got, and by the modulation of Boost circuit link, improves the output voltage peak value of inverter circuit, is particularly useful for the application scenario of wide output AC voltage scope.The present invention is achieved through the following technical solutions:
A kind of single-phase voltage-boosting push-pull inverter circuit, as shown in Figure 2, its circuit mainly comprises: boost inductance L, transformer T
1, the first switching tube Q
1, second switch pipe Q
2, the first diode D
1, the second diode D
2With storage capacitor C, it is characterized in that boost inductance L, the first diode D
1, the second diode D
2, the first switching tube Q
1Constitute Boost circuit link jointly with storage capacitor C; The first switching tube Q
1, second switch pipe Q
2, storage capacitor C and transformer T
1Common formation push-pull inverter circuit link, the shared first switching tube Q of Boost circuit link and push-pull inverter circuit link
1, constitute single-phase voltage-boosting push-pull inverter circuit jointly.
In the above-mentioned single-phase voltage-boosting push-pull inverter circuit, direct voltage source V
SPositive pole by the boost inductance L and the first diode D
1Anode, the second diode D
2Anode connect; The first diode D
1Negative electrode and transformer T
1First side winding W
11End of the same name connect, and then with the first switching tube Q
1Drain electrode connect; The second diode D
2Negative electrode be connected with the end of storage capacitor C, and then with transformer T
1First side winding W
11The different name end connect; The first switching tube Q
1Source electrode, second switch pipe Q
2Source electrode, the other end and the direct voltage source V of storage capacitor C
SNegative pole connect.Transformer T
1First side winding W
11Different name end and W
12End of the same name connect, and then be connected with the end of storage capacitor C; Transformer T
1First side winding W
12Different name end and second switch pipe Q
2Drain electrode connect.
Compared with prior art the present invention has following advantage: booster circuit and single-phase push-pull inverter circuit are organically combined to integrate obtain, two links are combined into one-level, wherein recommend the shared switching tube Q1 of inversion link and boost circuit link, only regulate a switching variable and realize the rising of boost circuit link voltage and the energy delivery of push-pull inverter circuit link simultaneously.Single-phase voltage-boosting push-pull inverter circuit is when realizing the output voltage fast lifting, device for power switching number and control circuit need not be increased and just the output AC voltage peak value can be improved, reduce switching device, simplified the complexity of circuit, be particularly useful for the low-power applications occasion.Increased by two diodes in addition, when realizing, can thereby not cause electric capacity to charge smoothly power transfer smoothly, thereby cause voltage to be vised because of the former of transformer T1 primary side to induction charging and discharge.In order to improve the peak value of output voltage, adopted boost inductance L as energy-storage travelling wave tube.The present invention integrates Boost circuit link and conventional single-phase push-pull inverter circuit link and get, entire circuit has only been used two switching tubes, reduced cost, reduce the complexity of control circuit, improve the reliability of circuit, and the modulation by Boost circuit link, improve the output voltage peak value of inverter circuit, be particularly useful for the application scenario of wide output AC voltage scope.
Description of drawings
Fig. 1 is the existing connection layout that adds the link of boosting in single-phase push-pull inverter circuit prime.
Fig. 2 is the instance graph of single-phase voltage-boosting push-pull inverter circuit in the specific embodiment of the invention.
Fig. 3 a～Fig. 3 d is the process chart of single-phase voltage-boosting push-pull inverter circuit shown in Figure 2.
Fig. 4 is the main voltage waveform of single-phase voltage-boosting push-pull inverter circuit shown in Figure 2 in two switch periods.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described.
With reference to figure 2, a kind of single-phase step-up inverter circuit comprises: boost inductance L, diode D
1, D
2, switching tube Q
1Constitute Boost circuit link, switching tube Q jointly with storage capacitor C
1, Q
2, storage capacitor C and transformer T
1Common formation push-pull inverter circuit link.Direct voltage source V
SPositive pole by the boost inductance L and the first diode D
1Anode, the second diode D
2Anode connect; The first diode D
1Negative electrode and transformer T
1First side winding W
11End of the same name connect, and then with the first switching tube Q
1Drain electrode connect; The second diode D
2Negative electrode be connected with the end of storage capacitor C, and then with transformer T
1First side winding W
11The different name end connect; The first switching tube Q
1Source electrode, second switch pipe Q
2Source electrode, the other end and the direct voltage source V of storage capacitor C
SNegative pole connect.Transformer T
1First side winding W
11 different name end and W
12End of the same name connect, and then be connected with the end of storage capacitor C; Transformer T
1First side winding W
12Different name end and second switch pipe Q
2Drain electrode connect.
Fig. 3 a～Fig. 3 d has provided circuit working process of the present invention, and Fig. 4 has provided main voltage waveform of the present invention.In a switch periods, the course of work of the present invention is as follows:
t
0～t
1, as Fig. 3 a, the first switching tube Q
1Open-minded, second switch pipe Q
2Turn-off.Input is by the first diode D
1L charges to boost inductance, and the electric current on the L is linear to rise.Storage capacitor C is by the first switching tube Q
1To transformer primary side T
1W
11Carry out the transmission of energy, the last cycle is stored in transformer T
1Energy pass to secondary and to the output transmission.
t
1～t
2, as Fig. 3 b, be in Dead Time, the first switching tube Q
1With second switch pipe Q
2All turn-off, but the first switching tube Q
1The body diode conducting make the induction charging loop continue afterflow.Storage capacitor C is by switching tube Q
1Body diode continue to release energy.
t
2～t
3, as Fig. 3 c, the first switching tube Q
1Turn-off second switch pipe Q
2Conducting, boost inductance L is by the second diode D
2Give storage capacitor C discharge, and storage capacitor C absorption energy charges.Simultaneously, storage capacitor C is by second switch pipe Q
2Give T
1Primary side W
12Transmit energy.
t
3～T as Fig. 3 d, is in Dead Time, the first switching tube Q
1With second switch pipe Q
2All turn-off second switch pipe Q
2Body diode keep the electric current afterflow, storage capacitor C continues W
12Transmit energy.
The present invention makes the alternating voltage peak of output get a promotion by boost inductance L, overcome the lower shortcoming of conventional push-pull inverter circuit output voltage peak value, and entire circuit only uses two switching tubes, reduced cost, reduce the complexity of control circuit, improve the reliability of circuit.
Claims (3)
1. a single-phase voltage-boosting push-pull inverter circuit comprises single-phase push-pull inverter circuit link and booster circuit link, it is characterized in that described booster circuit link is by boost inductance (L), the first diode (D
1), the second diode (D
2), the first switching tube (Q
1) and storage capacitor (C) formation; Described single-phase push-pull inverter circuit link is by the first switching tube (Q
1), second switch pipe (Q
2), storage capacitor (C) and transformer (T
1) constitute; The shared first switching tube (Q of single-phase push-pull inverter circuit link and booster circuit link
1), constitute single-phase voltage-boosting push-pull inverter circuit jointly.
2. a kind of single-phase voltage-boosting push-pull inverter circuit according to claim 1 is characterized in that, direct voltage source (V
S) positive pole by boost inductance (L) and the first diode (D
1) anode, the second diode (D
2) anode connect; First diode (the D
1) negative electrode and transformer (T
1) first side winding (W
11) end of the same name connect, and then be connected with the drain electrode of first switching tube (Q1); Second diode (the D
2) negative electrode be connected with an end of storage capacitor (C), and then with transformer (T
1) first side winding (W
11) the different name end connect; First switching tube (the Q
1) source electrode, second switch pipe (Q
2) source electrode, the other end and the direct voltage source V of storage capacitor (C)
SNegative pole connect.
3. a kind of single-phase voltage-boosting push-pull inverter circuit according to claim 2 is characterized in that, transformer (T
1) first side winding (W
11) different name end and (W
12) end of the same name connect, and then be connected with an end of storage capacitor (C); Transformer (T
1) first side winding (W
12) different name end and second switch pipe (Q
2) drain electrode connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100369640A CN101478253B (en) | 2009-01-23 | 2009-01-23 | Single-phase voltage-boosting push-pull inverter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100369640A CN101478253B (en) | 2009-01-23 | 2009-01-23 | Single-phase voltage-boosting push-pull inverter circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101478253A true CN101478253A (en) | 2009-07-08 |
| CN101478253B CN101478253B (en) | 2010-12-08 |
Family
ID=40838895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100369640A Expired - Fee Related CN101478253B (en) | 2009-01-23 | 2009-01-23 | Single-phase voltage-boosting push-pull inverter circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101478253B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012109783A1 (en) * | 2011-02-14 | 2012-08-23 | Intersil Americas Inc. | Isolated boost dc/dc converter |
| US8760897B2 (en) | 2011-12-12 | 2014-06-24 | Industrial Technology Research Institute | DC-AC converter and conversion circuit |
| CN107086807A (en) * | 2017-07-04 | 2017-08-22 | 安徽工业大学 | A kind of boosting inverter |
| CN107589303A (en) * | 2016-07-07 | 2018-01-16 | 台达电子工业股份有限公司 | Power supply change-over device and earth impedance value detection method |
| CN110198134A (en) * | 2019-06-06 | 2019-09-03 | 广东工业大学 | A kind of inverter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2275140B (en) * | 1993-02-13 | 1997-06-18 | Kijima Co Ltd | Push-pull inverter |
| US7218541B2 (en) * | 2004-07-21 | 2007-05-15 | Dell Products L.P. | High efficiency two stage inverter |
| CN201345621Y (en) * | 2009-01-23 | 2009-11-11 | 华南理工大学 | Single-phase boost push-pull inversion circuit |
-
2009
- 2009-01-23 CN CN2009100369640A patent/CN101478253B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012109783A1 (en) * | 2011-02-14 | 2012-08-23 | Intersil Americas Inc. | Isolated boost dc/dc converter |
| US8760897B2 (en) | 2011-12-12 | 2014-06-24 | Industrial Technology Research Institute | DC-AC converter and conversion circuit |
| CN107589303A (en) * | 2016-07-07 | 2018-01-16 | 台达电子工业股份有限公司 | Power supply change-over device and earth impedance value detection method |
| CN107086807A (en) * | 2017-07-04 | 2017-08-22 | 安徽工业大学 | A kind of boosting inverter |
| CN107086807B (en) * | 2017-07-04 | 2018-03-23 | 安徽工业大学 | A kind of boosting inverter |
| CN110198134A (en) * | 2019-06-06 | 2019-09-03 | 广东工业大学 | A kind of inverter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101478253B (en) | 2010-12-08 |
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Granted publication date: 20101208 Termination date: 20210123 |