CN103475233B - Switching power supply with high electric-energy conversion efficiency - Google Patents
Switching power supply with high electric-energy conversion efficiency Download PDFInfo
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- CN103475233B CN103475233B CN201310365030.8A CN201310365030A CN103475233B CN 103475233 B CN103475233 B CN 103475233B CN 201310365030 A CN201310365030 A CN 201310365030A CN 103475233 B CN103475233 B CN 103475233B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000005611 electricity Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention relates to a switching power supply with high electric-energy conversion efficiency. The switching power supply comprises a power supply, a first diode, a second diode, a third diode, a fourth diode, a first capacitor, a second capacitor, a first power switch, a second power switch, a third power switch, a fourth power switch and a load, wherein a negative electrode of the first diode is connected with positive electrodes of the first power switch, an inductor, the load, the third power switch and the third diode in series and in sequence; the positive electrode end of the fourth diode is connected with one end of the fourth power switch; the other end of the fourth power switch is connected between the third power switch and the load; a negative electrode of the second diode is connected with one end of the second power switch, and the other end of the second power switch is connected between the first power switch and the inductor. Compared with the prior art, the switching power supply has the advantages of simple circuit, convenience in maintenance, high current conversion efficiency, and the like.
Description
Technical field
The present invention relates to a kind of Switching Power Supply, especially relate to a kind of high Switching Power Supply of energy conversion efficiency.
Background technology
With Switching Power Supply extensively should at aspects such as computer, communication, Aero-Space, instrument and meter and household electrical appliance
With people are growing to its demand, and the aspects such as the efficiency of power supply, volume, weight and reliability proposed higher
Requirement, Switching Power Supply is with its efficiency high, small volume, that the advantage such as lightweight progressively instead of efficiency at a lot of aspects is low and stupid
The linear power supply of weight again.
At present, on market sell Switching Power Supply in made using bipolar transistor 100khz, made with mosfet
500khz power supply, though practical, its efficiency is low, and switching loss is big, and response time is slow, and noise is big, and output is not sufficiently stable
The shortcomings of, such Switching Power Supply not only can affect ambient electronics, also can substantially reduce the reliability of power supply itself.
Content of the invention
The purpose of the present invention is exactly to provide to overcome the defect that above-mentioned prior art exists that a kind of circuit is simple, maintenance
The convenient high Switching Power Supply of energy conversion efficiency.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of high Switching Power Supply of energy conversion efficiency is it is characterised in that include power supply, the first diode, the two or two pole
Pipe, the 3rd diode, the 4th diode, the first electric capacity, the second electric capacity, the first power switch, the second power switch, the 3rd power
Switch, the 4th power switch, load, inductance；The first described diode cathode is connected with power supply a end, negative pole and the first power
Switch, inductance, load, the 3rd power switch, the 3rd diode cathode are sequentially connected in series；The 3rd described diode cathode and power supply
B end connects；The 4th described diode cathode is connected between power supply a end and the first diode cathode end；Described the four or two
Pole pipe positive terminal is connected with the 4th power switch one end, the 4th described power switch other end be connected to the 3rd power switch with
Between load；The second described diode cathode end is connected between power supply b end and the 3rd diode cathode；Described the two or two
Pole pipe negative pole is connected with second power switch one end, and the second described power switch other end is connected to the first power switch and electricity
Between sense；The first described capacitance cathode end is connected between the second diode and the second power open pipe；The first described electric capacity
Negative pole end is connected between the 4th diode and the 4th power switch；The second described capacitance cathode end is connected to the first diode
And the first power switch between；The second described electric capacity negative pole end is connected between the 3rd diode and the 3rd power switch.
Also include fly-wheel diode, described fly-wheel diode positive pole is connected with load, negative pole and inductance.
Described power switch is IGCT, mos manages or igbt.
Compared with prior art, the invention has the advantages that
1st, circuit is simple；
2nd, easy to maintenance；
3rd, current conversion efficiency is high.
Brief description
Fig. 1 is the circuit diagram of the present invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, a kind of high Switching Power Supply of energy conversion efficiency, including power supply 14, the first diode the 2, the 2nd 2
Pole pipe 1, the 3rd diode 4, the 4th diode 5, the first electric capacity 3, the second electric capacity 7, the first power switch 8, the second power switch
10th, the 3rd power switch 12, the 4th power switch 6, load 13, inductance 9；Described the first diode 2 positive pole and power supply 14a end
Connect, negative pole is sequentially connected in series with the first power switch 8, inductance 9, load the 13, the 3rd power switch 12, the 3rd diode 4 positive pole；
Described the 3rd diode 4 negative pole is connected with power supply 14b end；Described the 4th diode 5 negative pole is connected to power supply 14a end and the
Between one diode 2 positive terminal；Described the 4th diode 5 positive terminal is connected with the 4th power switch 6 one end, and the described 4th
Power switch 6 other end is connected between the 3rd power switch 12 and load 13；Described the second diode 1 positive terminal is connected to
Between power supply 14b end and the 3rd diode 4 negative pole；Described the second diode 1 negative pole is connected with the second power switch 10 one end,
Described the second power switch 10 other end is connected between the first power switch 8 and inductance 9；Described the first electric capacity 3 positive pole
End is connected between the second diode 1 and the second power open pipe 10；Described the first electric capacity 3 negative pole end is connected to the 4th diode
5 and the 4th between power switch 6；Described the second electric capacity 7 positive terminal be connected to the first diode 2 and the first power switch 8 it
Between；Described the second electric capacity 7 negative pole end is connected between the 3rd diode 4 and the 3rd power switch 12.Also include afterflow two pole
Pipe 11, described fly-wheel diode 11 positive pole is connected with load 13, negative pole and inductance 9.Described power switch be IGCT,
Mos pipe or igbt.
When power supply 14 is operated in positive half cycle, a end is positive pole, and b end is negative pole, and the first diode 2, the 3rd diode 4 are led
Logical, power to the second electric capacity 7, after the second electric capacity 7 is charged, open the first power switch 8, the 3rd power switch 12 supplies to load
Electricity；
When power supply 14 is operated in negative half period, b end is positive pole, and a end is negative pole, and the second diode 1, the 4th diode 5 are led
Logical, power to the first electric capacity 3, after the first electric capacity 3 is charged, open the second power switch 10, the 4th power switch 6 supplies to load
Electricity.
Protect load 13 by fly-wheel diode 11.
Claims (2)
1. a kind of high Switching Power Supply of energy conversion efficiency it is characterised in that include power supply (14), the first diode (2), second
Diode (1), the 3rd diode (4), the 4th diode (5), the first electric capacity (3), the second electric capacity (7), the first power switch
(8), the second power switch (10), the 3rd power switch (12), the 4th power switch (6), load (13), inductance (9)；Described
First diode (2) positive pole is connected with power supply (14) a end, negative pole and the first power switch (8), inductance (9), load (13), the
Three power switch (12), the 3rd diode (4) positive pole are sequentially connected in series；The 3rd described diode (4) negative pole and power supply (14) b end
Connect；The 4th described diode (5) negative pole is connected between power supply (14) a end and the first diode (2) positive terminal；Described
4th diode (5) positive terminal is connected with the 4th power switch (6) one end, and the 4th described power switch (6) other end connects
Between the 3rd power switch (12) and load (13)；Described the second diode (1) positive terminal be connected to power supply (14) b end with
Between 3rd diode (4) negative pole；Described the second diode (1) negative pole is connected with the second power switch (10) one end, described
The second power switch (10) other end be connected between the first power switch (8) and inductance (9)；Described the first electric capacity (3)
Positive terminal is connected between the second diode (1) and the second power open pipe (10)；Described the first electric capacity (3) negative pole end is connected to
Between 4th diode (5) and the 4th power switch (6)；Described the second electric capacity (7) positive terminal is connected to the first diode (2)
And the first power switch (8) between；Described the second electric capacity (7) negative pole end is connected to the 3rd diode (4) and is opened with the 3rd power
Close between (12)；
Also include fly-wheel diode (11), described fly-wheel diode (11) positive pole is connected with load (13), negative pole and inductance (9)
Connect；
When power supply (14) is operated in positive half cycle, a end is positive pole, and b end is negative pole, the first diode (2), the 3rd diode (4)
Conducting, to the second electric capacity (7) power supply, after the second electric capacity (7) is charged, opens the first power switch (8), the 3rd power switch
(12) powering load；When power supply (14) is operated in negative half period, b end is positive pole, and a end is negative pole, the second diode (1), the
Four diodes (5) turn on, to the first electric capacity (3) power supply, after the first electric capacity (3) is charged, open the second power switch (10), the
Four power switch (6) powering load.
2. a kind of high Switching Power Supply of energy conversion efficiency according to claim 1 is it is characterised in that described power is opened
Close as IGCT, mos pipe or igbt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365030.8A CN103475233B (en) | 2013-08-20 | 2013-08-20 | Switching power supply with high electric-energy conversion efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365030.8A CN103475233B (en) | 2013-08-20 | 2013-08-20 | Switching power supply with high electric-energy conversion efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103475233A CN103475233A (en) | 2013-12-25 |
| CN103475233B true CN103475233B (en) | 2017-01-18 |
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ID=49799967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310365030.8A Active CN103475233B (en) | 2013-08-20 | 2013-08-20 | Switching power supply with high electric-energy conversion efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103475233B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001524A (en) * | 2011-09-09 | 2013-03-27 | 阳光电源股份有限公司 | Single-phase inverter |
| EP2624427A2 (en) * | 2012-02-06 | 2013-08-07 | LG Electronics, Inc. | Charge apparatus and electric vehicle including the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68922049T2 (en) * | 1988-09-06 | 1995-09-21 | Toshiba Kawasaki Kk | Pulse-width modulated power supply with the ability to suppress modulation frequency signal components of earth potentials. |
| JPH08149804A (en) * | 1994-11-18 | 1996-06-07 | Canon Inc | Switching regulator power supply circuit |
-
2013
- 2013-08-20 CN CN201310365030.8A patent/CN103475233B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001524A (en) * | 2011-09-09 | 2013-03-27 | 阳光电源股份有限公司 | Single-phase inverter |
| EP2624427A2 (en) * | 2012-02-06 | 2013-08-07 | LG Electronics, Inc. | Charge apparatus and electric vehicle including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103475233A (en) | 2013-12-25 |
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