CN2560158Y - Single-tube voltage reducing active power factor corrector - Google Patents
Single-tube voltage reducing active power factor corrector Download PDFInfo
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- CN2560158Y CN2560158Y CN 02263046 CN02263046U CN2560158Y CN 2560158 Y CN2560158 Y CN 2560158Y CN 02263046 CN02263046 CN 02263046 CN 02263046 U CN02263046 U CN 02263046U CN 2560158 Y CN2560158 Y CN 2560158Y
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- diode
- negative pole
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- capacitor
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- 239000003990 capacitor Substances 0.000 claims description 30
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 3
- 229910052708 sodium Inorganic materials 0.000 abstract description 3
- 239000011734 sodium Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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Abstract
The utility model discloses a single pipe step-down active power factor corrector. The back end of an inductance L1 of the corrector, the positive electrode of a capacitance C1 and the upper end of a switch tube V1 are connected together. The lower end of the switch tube V1 is grounding. The negative electrode of the capacitance C1, the negative electrode of a diode D7 and the positive electrode of a diode D8 are connected together. The negative electrode of the diode D8, the negative electrode of a diode D6, the positive electrode of a capacitance C0 and the upper end of the outputting end are connected together. The positive electrode of the diode D6 is grounding. The negative electrode of the capacitance C0, the lower end of an inductance L2, the positive electrode of a diode D5 and the lower end of the outputting end are connected together. The negative electrode of the diode D5 is grounding. The positive electrode of the diode D7 and the upper end of the inductance L2 are connected together. The single pipe conveniently and simply realizes step-down high power factor output. The power factor can reach 0.99. The utility model can be widely applied in the power supplies of appliance power supply, fluorescent lamp, high pressure sodium lamp electronic ballast and office automatic equipment.
Description
Technical field
The utility model relates to a kind of active power factor corrector.
Background technology
Known single tube buck power factor corrector (as BUCK type power factor corrector) can be realized step-down output with little electromagnetic interference, but its power factor generally is lower than 0.85, do not satisfy the needs of some occasion, as employed middle low power factor correcting device in household electrical appliances power supply, fluorescent lamp, high pressure sodium lamp electric ballast, business automation equipment power supply etc.
Summary of the invention
The purpose of this utility model is that a kind of single tube buck active power factor corrector will be provided, and it can overcome the low shortcoming of power factor.
The purpose of this utility model can realize like this: the plus earth of diode D1, mains supply Vi one end, the anodal tandem of the negative pole of diode D1 and diode D3, the plus earth of diode D2, the mains supply Vi other end, the anodal tandem of the negative pole of diode D2 and diode D4, the negative pole of diode D3, the front end tandem of the negative pole of diode D4 and inductance L 1, the rear end of inductance L 1, the upper end tandem of the positive pole of capacitor C 1 and switching tube V1, the lower end ground connection of switching tube V1, the negative pole of capacitor C 1, the anodal tandem of the negative pole of diode D7 and diode D8, the negative pole of diode D8, the negative pole of diode D6, the upper end tandem of the positive pole of capacitor C 0 and output, the plus earth of diode D6, the negative pole of capacitor C 0, the lower end of inductance L 2, the lower end tandem of the positive pole of diode D5 and output, the minus earth of diode D5, the upper end tandem of the positive pole of diode D7 and inductance L 2.
The purpose of this utility model can also realize like this: the plus earth of diode D1, mains supply Vi one end, the anodal tandem of the negative pole of diode D1 and diode D3, the plus earth of diode D2, the mains supply Vi other end, the anodal tandem of the negative pole of diode D2 and diode D4, the negative pole of diode D3, the front end tandem of the negative pole of diode D4 and inductance L 1, the rear end of inductance L 1, the upper end tandem of the positive pole of capacitor C 1 and switching tube V1, the lower end ground connection of switching tube V1, the negative pole of capacitor C 1, the anodal tandem of the negative pole of diode D6 and diode D8, the negative pole of diode D8, the upper end of inductance L 2, the upper end tandem of the positive pole of capacitor C 0 and output, the negative pole of capacitor C 0, the positive pole of diode D5, the lower end tandem of the positive pole of diode D6 and output, the minus earth of diode D5, the negative pole tandem of the lower end of inductance L 2 and diode D7, the plus earth of diode D7.
The utility model has the advantages that and use single tube easily to realize the output of voltage-dropping type High Power Factor simply, power factor can reach 0.99, can be widely used in the power supplys such as household electrical appliances power supply, fluorescent lamp, high pressure sodium lamp electric ballast, business automation equipment.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the circuit diagram of first embodiment of the utility model.
Fig. 2 is the circuit diagram of second embodiment of the utility model.
Switching tube V1 among the figure is IRF840, and inductance L 1 is 1mH, and inductance L 2 is 0.31mH, capacitor C 1=capacitor C 0=100F/250V.Inductance L 1 is an energy storage inductor, and capacitor C 0 is an output capacitance.
Embodiment
In Fig. 1, form the booster circuit of active power factor correcting apparatus by switching tube V1, inductance L 1, diode D1, diode D2, diode D3, diode D4, diode D5, diode D8, capacitor C 1 and capacitor C 2.When forming switching tube V1 conducting by switching tube V1, diode D6, diode D7, diode D8, inductance L 2, capacitor C 1 and capacitor C 0 to the loop of output power supply.By inductance L 2, diode D7, diode D8 and capacitor C0 form switching tube V1 by the time to the loop of output afterflow power supply.
When switching tube V1 works, when having improved power factor the line voltage current waveform is consistent, the high pressure of power factor correcting apparatus output V
C1+ V
C0Be transformed into step-down output, i.e. output voltage V 0≤(V
C1+ V
C0)/2.The process of concrete decompression transformation is: establish output voltage V 0 and be about 1/2nd of line voltage peak value, that is: the V=200 volt.
When switching tube V1 under the switching signal effect during conducting, the current supply circuit that the energy on the capacitor C1 is formed by diode D7, inductance L 2, capacitor C 0, diode D6 and switching tube V1 is gone up energy stored with capacitor C1 and is passed to capacitor C 0.When switching tube V1 ended under the switching signal effect, energy stored passed to capacitor C 0 by the afterflow current supply circuit that capacitor C 0, diode D8, diode D7 form in the inductance L 2, finishes a work period to this this device.
Embodiment shown in Figure 2 derives from from embodiment shown in Figure 1, and their function, the course of work and loop element are identical.Its difference only is that Fig. 2 is series circuit and the diode D6 transposition that the inductance L among Fig. 12, diode D7 are formed.
Connect a sustained diode 9 between A point in Fig. 1 and Fig. 2 and the B point, efficient can be higher.
Claims (2)
1. single tube buck active power factor corrector, the plus earth of diode D1, mains supply Vi one end, the anodal tandem of the negative pole of diode D1 and diode D3, the plus earth of diode D2, the mains supply Vi other end, the anodal tandem of the negative pole of diode D2 and diode D4, the negative pole of diode D3, the front end tandem of the negative pole of diode D4 and inductance L 1, the rear end that it is characterized in that inductance L 1, the upper end tandem of the positive pole of capacitor C 1 and switching tube V1, the lower end ground connection of switching tube V1, the negative pole of capacitor C 1, the anodal tandem of the negative pole of diode D7 and diode D8, the negative pole of diode D8, the negative pole of diode D6, the upper end tandem of the positive pole of capacitor C 0 and output, the plus earth of diode D6, the negative pole of capacitor C 0, the lower end of inductance L 2, the lower end tandem of the positive pole of diode D5 and output, the minus earth of diode D5, the upper end tandem of the positive pole of diode D7 and inductance L 2.
2. single tube buck active power factor corrector, the plus earth of diode D1, mains supply Vi one end, the anodal tandem of the negative pole of diode D1 and diode D3, the plus earth of diode D2, the mains supply Vi other end, the anodal tandem of the negative pole of diode D2 and diode D4, the negative pole of diode D3, the front end tandem of the negative pole of diode D4 and inductance L 1, the rear end that it is characterized in that inductance L 1, the upper end tandem of the positive pole of capacitor C 1 and switching tube V1, the lower end ground connection of switching tube V1, the negative pole of capacitor C 1, the anodal tandem of the negative pole of diode D6 and diode D8, the negative pole of diode D8, the upper end of inductance L 2, the upper end tandem of the positive pole of capacitor C 0 and output, the negative pole of capacitor C 0, the positive pole of diode D5, the lower end tandem of the positive pole of diode D6 and output, the minus earth of diode D5, the negative pole tandem of the lower end of inductance L 2 and diode D7, the plus earth of diode D7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263046 CN2560158Y (en) | 2002-07-10 | 2002-07-10 | Single-tube voltage reducing active power factor corrector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263046 CN2560158Y (en) | 2002-07-10 | 2002-07-10 | Single-tube voltage reducing active power factor corrector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2560158Y true CN2560158Y (en) | 2003-07-09 |
Family
ID=33729508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02263046 Expired - Fee Related CN2560158Y (en) | 2002-07-10 | 2002-07-10 | Single-tube voltage reducing active power factor corrector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2560158Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8901900B2 (en) | 2011-09-30 | 2014-12-02 | Industrial Technology Research Institute | Buck power factor correction system |
-
2002
- 2002-07-10 CN CN 02263046 patent/CN2560158Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8901900B2 (en) | 2011-09-30 | 2014-12-02 | Industrial Technology Research Institute | Buck power factor correction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |