CN102983736A - AC-DC switch power source having power factor correcting function - Google Patents
AC-DC switch power source having power factor correcting function Download PDFInfo
- Publication number
- CN102983736A CN102983736A CN201110260212XA CN201110260212A CN102983736A CN 102983736 A CN102983736 A CN 102983736A CN 201110260212X A CN201110260212X A CN 201110260212XA CN 201110260212 A CN201110260212 A CN 201110260212A CN 102983736 A CN102983736 A CN 102983736A
- Authority
- CN
- China
- Prior art keywords
- power supply
- switching power
- chip
- bridge rectifier
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 2
- 101100518501 Mus musculus Spp1 gene Proteins 0.000 abstract description 4
- 102100035472 DNA polymerase iota Human genes 0.000 abstract 1
- 101001094672 Homo sapiens DNA polymerase iota Proteins 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 240000007320 Pinus strobus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to an AC-DC switch power source having a power factor correcting function. The AC-DC switch power source having the power factor correcting function includes an EMI/EMC module and a bridge rectifying module connected successively. An output terminal of the bridge rectifying module is connected to a load through a switch power source DC-DC converting module having the power factor correcting function and a constant voltage control module successively. In the invention, through a method of integrating the power factor correcting function and the control of switch power source, the integral efficiency of the controller is improved to Eta 2 from Eta1*Eta2, improved by more than 5 percents than that of a product in the same specification in average; and the cost is reduced by more than 30 percents than that of a product in the same specification in average. The decrease of components also reduces the fault rate of the AC-DC switch power source having the power factor correcting function.
Description
Technical field
A kind of AC-DC Switching Power Supply of the present invention, especially a kind of AC-DC Switching Power Supply with Active PFC.
Background technology
The AC-DC power supply is mainly used in each electronic product power supply of conventional 220V mains-supplied, such as charger, and LED power supply etc.Power supply is widely used as the critical component of electronic system, also needs high reliability, high-performance simultaneously.
The traditional AC-DC Switching Power Supply conceptual design circuit of the general employing of existing power supply, the Switching Power Supply control section is not to be with Active PFC, thereby brings pollution to electrical network, and is especially obvious when power is large.If need Active PFC, then need the front additionally to increase again the one-level power factor correction circuit.
Traditional way will exchange first input rectifying and become Vbus1, and then by special power factor correction circuit, such as L6562 etc., output direct current Vbus2 boosts.By the adjustment of L6562, because the phase angle between the AC-input voltage that non-resistive load causes and the interchange input current is contracted to 0, power factor (PF) is near 1 like this.By traditional DC-DC switching power circuit, such as TEA1552T etc., can change high voltage direct current Vbus2 into needed low-voltage direct Vs by transformer.Vs by the voltage stabilizing of TL341 etc., just obtains the needed Vout of load again.
There is following problem in traditional circuit:
1, efficient is low.Suppose that from Vbus1 to Vbus2 efficiency eta 1 from Vbus2 to Vs efficiency eta 2, then whole efficiency is η 1 * η 2, whole efficiency is not good.For power supply, efficient is its important indicator, and the efficient higher position means energy-conservation.
2, cost is high, and failure rate is high.2 grades of circuit are adopted in Active PFC and Switching Power Supply conversion, have increased device cost and production cost, and device is many simultaneously, also can cause failure rate high, affect the life-span of power supply.
Summary of the invention
Goal of the invention: the objective of the invention is in order to overcome deficiency of the prior art, a kind of AC-DC Switching Power Supply with Active PFC is provided.
Technical scheme: the AC-DC Switching Power Supply with Active PFC of the present invention, comprise the EMI/EMC module, the bridge rectifier module that link to each other successively, the output of described bridge rectifier module is connected to load by Switching Power Supply DC-DC modular converter, constant voltage control module with Active PFC successively.
Described Switching Power Supply DC-DC modular converter with Active PFC comprises the L6562A chip, the Vcc1 pin of L6562A chip connects the high level of bridge rectifier module output by the first resistance, the OUT pin of L6562A chip connects the parallel circuits of the second resistance and the second diode, the positive pole of described the second diode connects the metal-oxide-semiconductor grid, this metal-oxide-semiconductor drain electrode connects the high level of bridge rectifier module output by the transformer main winding, the CS pin of described metal-oxide-semiconductor source electrode and L6562A chip is by the 3rd grounding through resistance, transformer is assisted winding one end ground connection, the other end connects described Vcc1 pin by the first diode, by the second capacity earth, the INV pin of L6562A chip is connected with described constant voltage control module TL431 by optocoupler described Vcc1 pin simultaneously.
Connect the first capacitor C 1 between two outputs of described bridge rectifier module, this first capacitor C 1 is solid capacitor.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is:
1, the mode that unites two into one by Active PFC and Switching Power Supply control, the whole efficiency of raising controller, efficient is brought up to η 2 by η 1 * η 2, on average raises the efficiency more than 5% than same specification product.
2, reduce cost, on average reduce more than 30% than same specification product; The minimizing of device has also reduced the failure rate of product.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is circuit module schematic diagram of the present invention.
Embodiment
As illustrated in figs. 1 and 2, of the present inventionly comprise following part:
1, EMI/EMC circuit prevents extraneous and controller electromagnetic interference each other.
2, bridge rectifier is used for exchanging input and changes direct current Vbus1 into.
3, Active PFC chip L6562A realizes Active PFC and high-low pressure conversion simultaneously.
4, transformer is used for high voltage direct current Vbus1 is become low-voltage direct Vs.
5, constant voltage chip TL431 is so that output voltage is within the specific limits constant.
The present invention includes the EMI/EMC module, the bridge rectifier module that link to each other successively, the output of bridge rectifier module is connected to load by Switching Power Supply DC-DC modular converter, constant voltage control module with Active PFC successively; This power supply is the single-ended flyback circuit; Described EMI/EMC module input 220V exchanges, and a piezo-resistance VR1 in parallel prevents thunderbolt at input, inductance L 1, and capacitor C X1, CX2, CY1-CY4 strobes; The rectifier bridge BD1 of bridge rectifier module will exchange input and become direct current Vbus1, and the Vbus1 waveform is the half sine-wave formula; Described Switching Power Supply DC-DC modular converter with Active PFC comprises L6562A chip IC 1, the Vcc1 pin of L6562A chip IC 1 meets the high level Vbus1 of bridge rectifier module output by the first resistance R 1, the OUT pin of L6562A chip IC 1 connects the parallel circuits of the second resistance R 2 and the second diode D2, the positive pole of the second diode D2 connects metal-oxide-semiconductor Q1 grid, metal-oxide-semiconductor Q1 drain electrode meets the high level Vbus1 of bridge rectifier module output by transformer main winding NP, the CS pin of metal-oxide-semiconductor Q1 source electrode and L6562A chip IC 1 is by the 3rd resistance R 3 ground connection, transformer is assisted winding Naux one end ground connection, the other end connects described Vcc1 pin by the first diode D1, by the second capacitor C 2 ground connection, the INV pin of L6562A chip IC 1 is connected with described constant voltage control module by optocoupler described Vcc1 pin simultaneously; L6562A is by the tracking to Vbus1 waveform after the rectification, and camera triggers metal-oxide-semiconductor Q1, so that it is synchronous to flow through electric current envelope and the Vbus1 of transformer main winding Np.Simultaneously, transformer main winding Np electric current is with to exchange input current synchronous, and Vbus1 and AC-input voltage are synchronous, and like this, AC-input voltage and electric current are synchronous, so that power factor (PF) is near 1; Metal-oxide-semiconductor is when turn-offing, and own loss power is large, driving parallel diode D2 on the resistance R 2, accelerates the shutoff of metal-oxide-semiconductor for this reason, reduces the loss of metal-oxide-semiconductor self, improves controller efficient.The auxiliary winding Naux of transformer is to the L6562A chip power supply; Transformer secondary output winding Ns passes through the D3 rectification, output dc voltage Vs, and Vs becomes the needed voltage Vout of load by constant voltage module TL431 voltage stabilizing.
Claims (3)
1. with the AC-DC Switching Power Supply of Active PFC, comprise the EMI/EMC module, the bridge rectifier module that link to each other successively, it is characterized in that: the output of described bridge rectifier module is connected to load by Switching Power Supply DC-DC modular converter, constant voltage control module with Active PFC successively.
2. the AC-DC Switching Power Supply with Active PFC according to claim 1, it is characterized in that: described Switching Power Supply DC-DC modular converter with Active PFC comprises the L6562A chip, the Vcc1 pin of this L6562A chip connects the high level of bridge rectifier module output by the first resistance, the OUT pin of described L6562A chip connects the parallel circuits of the second resistance and the second diode, the positive pole of described the second diode connects the metal-oxide-semiconductor grid, this metal-oxide-semiconductor drain electrode connects the high level of bridge rectifier module output by the transformer main winding, the CS pin of described metal-oxide-semiconductor source electrode and L6562A chip is by the 3rd grounding through resistance, transformer is assisted winding one end ground connection, the other end connects described Vcc1 pin by the first diode, by the second capacity earth, the INV pin of L6562A chip is connected with described constant voltage control module TL431 by optocoupler described Vcc1 pin simultaneously.
3. the AC-DC Switching Power Supply with Active PFC according to claim 1 is characterized in that: connect the first capacitor C 1 between two outputs of described bridge rectifier module, this first capacitor C 1 is solid capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260212XA CN102983736A (en) | 2011-09-05 | 2011-09-05 | AC-DC switch power source having power factor correcting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260212XA CN102983736A (en) | 2011-09-05 | 2011-09-05 | AC-DC switch power source having power factor correcting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102983736A true CN102983736A (en) | 2013-03-20 |
Family
ID=47857535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110260212XA Pending CN102983736A (en) | 2011-09-05 | 2011-09-05 | AC-DC switch power source having power factor correcting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102983736A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730302A (en) * | 2015-04-20 | 2015-06-24 | 乐雷光电技术（上海）有限公司 | Anti-explosion circuit |
| CN108834280A (en) * | 2018-07-04 | 2018-11-16 | 赛尔富电子有限公司 | A kind of stand-by power consumption control device and method for lighting system |
| CN114448262A (en) * | 2022-04-11 | 2022-05-06 | 深圳美利晶微电子科技有限公司 | Switching power supply based on MOS pipe |
| CN114696591A (en) * | 2020-12-28 | 2022-07-01 | 现代自动车株式会社 | Device for controlling a power factor correction circuit of a charger for a vehicle battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080278092A1 (en) * | 2007-05-07 | 2008-11-13 | Philips Solid-State Lighting Solutions, Inc. | High power factor led-based lighting apparatus and methods |
| CN201766737U (en) * | 2010-08-04 | 2011-03-16 | 无锡绿能电子有限公司 | Single-stage constant-current LED power supply with power factor correction |
-
2011
- 2011-09-05 CN CN201110260212XA patent/CN102983736A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080278092A1 (en) * | 2007-05-07 | 2008-11-13 | Philips Solid-State Lighting Solutions, Inc. | High power factor led-based lighting apparatus and methods |
| CN201766737U (en) * | 2010-08-04 | 2011-03-16 | 无锡绿能电子有限公司 | Single-stage constant-current LED power supply with power factor correction |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730302A (en) * | 2015-04-20 | 2015-06-24 | 乐雷光电技术（上海）有限公司 | Anti-explosion circuit |
| CN104730302B (en) * | 2015-04-20 | 2017-07-14 | 乐雷光电技术（上海）有限公司 | One kind prevents aircraft bombing circuit |
| CN108834280A (en) * | 2018-07-04 | 2018-11-16 | 赛尔富电子有限公司 | A kind of stand-by power consumption control device and method for lighting system |
| CN108834280B (en) * | 2018-07-04 | 2023-10-13 | 赛尔富电子有限公司 | Standby power consumption control device and method for lighting system |
| CN114696591A (en) * | 2020-12-28 | 2022-07-01 | 现代自动车株式会社 | Device for controlling a power factor correction circuit of a charger for a vehicle battery |
| CN114448262A (en) * | 2022-04-11 | 2022-05-06 | 深圳美利晶微电子科技有限公司 | Switching power supply based on MOS pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8953347B2 (en) | Capacitor discharging circuit and power converter | |
| CN201435845Y (en) | LED lamp circuit with high power factor | |
| CN203167379U (en) | An isolated driving power supply of a LED fluorescent lamp | |
| CN202424526U (en) | High-voltage input power system | |
| CN102594155A (en) | Primary edge control type switch power supply with high-precision constant-voltage/constant-current output and high-pulse-frequency (PF) value | |
| CN103647448B (en) | Integrated step-down-flyback type high power factor constant current circuit and device | |
| CN201290070Y (en) | Extra-high voltage DC generator | |
| CN103269164B (en) | The quasi-single-stage high power factor circuit of former limit current constant control and device | |
| CN203243226U (en) | Switch power source | |
| CN201766737U (en) | Single-stage constant-current LED power supply with power factor correction | |
| CN103354690B (en) | Auxiliary-winding-free primary side controlled LED (light-emitting diode) driving circuit and PFC (power factor correction) constant-current control circuit thereof | |
| CN203617902U (en) | Integrated buck-flyback type high power factor constant current circuit and device | |
| CN201805599U (en) | Non-coupling bi-polar type LED driver circuit with high power factors | |
| CN202178715U (en) | AC-DC power conversion chip and power conversion circuit | |
| CN102983736A (en) | AC-DC switch power source having power factor correcting function | |
| CN103762839B (en) | A kind of magnetic coupling type single-phase high-gain Bridgeless power factor circuit correcting circuit | |
| TWI530074B (en) | Converter circuit with power factor correction | |
| CN202276500U (en) | Constant current light-emitting diode (LED) power supply without external metal oxide semiconductor field effect transistor (MOSFET) | |
| CN202395654U (en) | AC-DC switch power source having power factor correcting function | |
| CN103117660A (en) | High voltage input power supply system | |
| CN202679247U (en) | Switch power supply circuit and set-top box | |
| TWI414135B (en) | Single-stage flyback power factor correction converter | |
| CN104466978B (en) | Buck-type power factor correction circuit | |
| CN102984843A (en) | Constant current LED power supply not having high-voltage electrolytic capacitor | |
| CN103607110B (en) | A kind of quick opening switch power supply of auxiliary winding power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |