CN106507546A - A kind of high reliability surge protection circuit - Google Patents
A kind of high reliability surge protection circuit Download PDFInfo
- Publication number
- CN106507546A CN106507546A CN201611219270.7A CN201611219270A CN106507546A CN 106507546 A CN106507546 A CN 106507546A CN 201611219270 A CN201611219270 A CN 201611219270A CN 106507546 A CN106507546 A CN 106507546A
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- CN
- China
- Prior art keywords
- circuit
- pfc
- power
- diodes
- input rectifying
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- 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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Emergency Protection Circuit Devices (AREA)
Abstract
A kind of high reliability surge protection circuit of the present invention; including input rectifying filter circuit, pfc circuit, DC DC circuits and power-supplying circuit; wherein; the input rectifying filter circuit, the pfc circuit, DC DC circuits are sequentially connected in series together; the power-supplying circuit head end is connected between the input rectifying filter circuit and the pfc circuit; the end of the power-supplying circuit is connected between the pfc circuit and the DC DC, a small bridge in parallel above the PDC（DB2）.Using small bridge（DB2）Diode before replacement, using four independent diodes inside bridge heap, series connection of each path by two diodes, so that the stress levels of circuit itself are raised, simultaneously once the diode for having one side burns open circuit, two series diodes of other end alternate path can still work on, and improve reliability.Bridge heap sheet is as discrete component, small volume, the pressure without cloth board space simultaneously.
Description
Technical field
The present invention relates to a kind of protection circuit, more specifically refers to a kind of high reliability surge protection circuit.
Background technology
The use of LED illumination technology is popularized very much at present, for LED drives, will according to IEC6100-3-2
Ask, driving of the power more than 25W needed stress_responsive genes, and most common way is just to increase pfc circuit.But the increase of circuit
The reduction of reliability is equally caused, and when multigroup LED drives used in parallel, the inrush current for causing that closes a floodgate suddenly is caused
Pfc circuit is very easy to damage, it is common practice to which in pfc circuit upper end, simultaneously receipts or other documents in duplicate diode carrys out short-circuit surge current, this
Plant way to have high demands diode, and diode is easily damaged after repeat impact, once this diode is damaged, will result in PFC
Burning for circuit, has very big potential safety hazard.It is thus desirable to the simple but high surge protection circuit of reliability is guaranteeing the peace of PFC
The reliability of complete and whole power supply.
Content of the invention
Present invention is primarily targeted at providing a kind of high reliability surge protection circuit, its structure for passing through uniqueness sets
Meter, improves the reliability of protection circuit, while reducing the cloth board space of circuit itself.
The technical solution used in the present invention is：A kind of high reliability surge protection circuit, including input rectifying filter circuit,
Pfc circuit, DC-DC circuit and power-supplying circuit, wherein, the input rectifying filter circuit, the pfc circuit, DC-DC circuit
It is sequentially connected in series together, the power-supplying circuit head end is connected between the input rectifying filter circuit and the pfc circuit, the confession
The end of electric control circuit is connected between the pfc circuit and the DC-DC, it is characterised in that：Above the PDC one in parallel little
Type bridge heap（DB2）.
Described small bridge（DB2）By four independent diodes, two Diode series again in parallel up and down two are formed
Group diode paths.Series connection of each path by two diodes.
Beneficial effects of the present invention are：The present invention includes input rectifying filter circuit, pfc circuit, DC-DC electricity in structure
Road and power-supplying circuit, wherein, the input rectifying filter circuit, the pfc circuit, DC-DC circuit are sequentially connected in series together,
The power-supplying circuit head end is connected between the input rectifying filter circuit and the pfc circuit, the end of the power-supplying circuit
End is connected between the pfc circuit and the DC-DC, it is characterised in that：A small bridge in parallel above the PDC（DB2）.Make
Use small bridge（DB2）Diode before replacement, using four independent diodes inside bridge heap, forms two diode strings
Connection two groups of diode paths up and down in parallel again.Series connection of each path by two diodes so that circuit itself pressure etc.
Level is raised, and when single diode is 1000V, two then can to reach 2000V pressure.And upper and lower two paths is used in parallel,
So that all being shunted by two parallel branches when having surge to flow through every time, reduce the electric current that upper and lower path flows through, while once having one
The diode on side burns open circuit, and two series diodes of other end alternate path can still work on, and improves reliability.With
When bridge heap sheet as discrete component, small volume, the pressure without cloth board space.
Description of the drawings
Fig. 1 is the functional-block diagram of the present invention.
Fig. 2 is the local circuit schematic diagram of the present invention.
Specific embodiment
One kind for the present invention is preferably embodied as example as shown in Figure 1 to Figure 2, a kind of high reliability surge protection electricity
Road, including input rectifying filter circuit 10, pfc circuit 20, DC-DC circuit 30 and power-supplying circuit 40, wherein, the input
Current rectifying and wave filtering circuit 10, the pfc circuit 20, DC-DC circuit 30 are sequentially connected in series together, the power-supplying circuit head end connection
Between the input rectifying filter circuit and the pfc circuit, the end of the power-supplying circuit 40 is connected to the pfc circuit and is somebody's turn to do
Between DC-DC.
Further, a small bridge in parallel above the PDC（DB2）, using small bridge（DB2）Before replacement two
Pole pipe, using four independent diodes inside bridge heap, forms two Diode series, two groups of diodes up and down in parallel again and leads to
Road.Series connection of each path by two diodes so that the stress levels of circuit itself are raised, when single diode is 1000V,
Two then can to reach 2000V pressure.And upper and lower two paths is used in parallel so that all by two when having surge to flow through every time
Parallel branches are shunted, and reduce the electric current that upper and lower path flows through, while once the diode having burns open circuit, the other end is in parallel
Two series diodes of path can still work on, and improve reliability.Simultaneously bridge heap sheet is as discrete component, small volume,
Pressure without cloth board space.
Embodiments of the invention and accompanying drawing are intended merely to the design concept for showing the present invention, and protection scope of the present invention is not
This embodiment should be confined to.
By narration above it can be seen that the purpose of design of the present invention effectively can be implemented.The part exhibition of embodiment
Show the purpose of the present invention and implement function and structure theme, and including other equivalents.
Therefore, right of the invention is constituted includes that other equivalence enforcements, concrete right scope refer to claim.
Claims (2)
1. a kind of high reliability surge protection circuit, it is characterised in that：Including input rectifying filter circuit, pfc circuit, DC-DC
Circuit and power-supplying circuit, wherein, the input rectifying filter circuit, the pfc circuit, DC-DC circuit are sequentially connected in series one
Rise, the power-supplying circuit head end is connected between the input rectifying filter circuit and the pfc circuit, the power-supplying circuit
End is connected between the pfc circuit and the DC-DC, it is characterised in that：A small bridge in parallel above the PDC（DB2）.
2. a kind of high reliability surge protection circuit as claimed in claim 1, it is characterised in that：Described small bridge
（DB2）By four independent diodes, form two Diode series, two groups of diode paths up and down in parallel again, each path by
The series connection of two diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219270.7A CN106507546A (en) | 2016-12-26 | 2016-12-26 | A kind of high reliability surge protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219270.7A CN106507546A (en) | 2016-12-26 | 2016-12-26 | A kind of high reliability surge protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106507546A true CN106507546A (en) | 2017-03-15 |
Family
ID=58333952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611219270.7A Pending CN106507546A (en) | 2016-12-26 | 2016-12-26 | A kind of high reliability surge protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106507546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927591A (en) * | 2021-02-02 | 2022-08-19 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
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| US20090273297A1 (en) * | 2008-04-30 | 2009-11-05 | Lsi Industries, Inc. | Power factor correction and driver circuits |
| US20110080102A1 (en) * | 2009-10-01 | 2011-04-07 | Liangan Ge | High efficiency constant current led driver |
| CN102843052A (en) * | 2012-09-18 | 2012-12-26 | 江苏省电力公司洪泽县供电公司 | Rectification module of intelligent high frequency switch power supply |
| CN102857083A (en) * | 2012-09-24 | 2013-01-02 | 连云港杰瑞电子有限公司 | Input surge current suppression circuit suitable for power factor correction (PFC) converter |
| JP2013090390A (en) * | 2011-10-14 | 2013-05-13 | Fujitsu Telecom Networks Ltd | Semi-bridgeless power-factor improvement circuit and method of driving semi-bridgeless power-factor improvement circuit |
| US20130128398A1 (en) * | 2011-11-18 | 2013-05-23 | Anmax Lightning Technology Corp. | Serial surge suppression and overload protection optimization device |
| CN203181299U (en) * | 2013-03-15 | 2013-09-04 | 无锡科技职业学院 | Constant-current driving circuit structure for small-power lamps |
| CN203206552U (en) * | 2013-04-22 | 2013-09-18 | 厦门市巨照光电科技有限公司 | LED circuit for silicon controlled rectifier dimmer |
| US20130257392A1 (en) * | 2012-03-29 | 2013-10-03 | Delta Electronics, Inc. | Power factor correction circuit |
| WO2013167046A2 (en) * | 2012-11-19 | 2013-11-14 | 中兴通讯股份有限公司 | Anti-surge bridgeless power factor correction circuit |
| US20150091462A1 (en) * | 2013-10-01 | 2015-04-02 | General Electric Company | Two-stage led driver with buck pfc and improved thd |
| CN205081676U (en) * | 2015-11-18 | 2016-03-09 | 广东工业大学 | Be applied to switching power supply's last electric surge current suppression circuit |
| CN105429453A (en) * | 2015-12-28 | 2016-03-23 | 北京英赛德佳科技有限公司 | High power factor power supply based on PFC circuit |
| CN105763035A (en) * | 2016-04-11 | 2016-07-13 | 广州金升阳科技有限公司 | Method and circuit for improving low-temperature starting capacity |
| CN205408214U (en) * | 2016-02-17 | 2016-07-27 | 上海晶丰明源半导体有限公司 | LED (light -emitting diode) drive system |
| JP2016158316A (en) * | 2015-02-23 | 2016-09-01 | 株式会社豊田自動織機 | Power supply device |
| CN207011030U (en) * | 2016-12-26 | 2018-02-13 | 吉安伊戈尔电气有限公司 | A kind of high reliability surge protection circuit |
-
2016
- 2016-12-26 CN CN201611219270.7A patent/CN106507546A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090273297A1 (en) * | 2008-04-30 | 2009-11-05 | Lsi Industries, Inc. | Power factor correction and driver circuits |
| US20110080102A1 (en) * | 2009-10-01 | 2011-04-07 | Liangan Ge | High efficiency constant current led driver |
| JP2013090390A (en) * | 2011-10-14 | 2013-05-13 | Fujitsu Telecom Networks Ltd | Semi-bridgeless power-factor improvement circuit and method of driving semi-bridgeless power-factor improvement circuit |
| US20130128398A1 (en) * | 2011-11-18 | 2013-05-23 | Anmax Lightning Technology Corp. | Serial surge suppression and overload protection optimization device |
| US20130257392A1 (en) * | 2012-03-29 | 2013-10-03 | Delta Electronics, Inc. | Power factor correction circuit |
| CN102843052A (en) * | 2012-09-18 | 2012-12-26 | 江苏省电力公司洪泽县供电公司 | Rectification module of intelligent high frequency switch power supply |
| CN102857083A (en) * | 2012-09-24 | 2013-01-02 | 连云港杰瑞电子有限公司 | Input surge current suppression circuit suitable for power factor correction (PFC) converter |
| WO2013167046A2 (en) * | 2012-11-19 | 2013-11-14 | 中兴通讯股份有限公司 | Anti-surge bridgeless power factor correction circuit |
| CN203181299U (en) * | 2013-03-15 | 2013-09-04 | 无锡科技职业学院 | Constant-current driving circuit structure for small-power lamps |
| CN203206552U (en) * | 2013-04-22 | 2013-09-18 | 厦门市巨照光电科技有限公司 | LED circuit for silicon controlled rectifier dimmer |
| US20150091462A1 (en) * | 2013-10-01 | 2015-04-02 | General Electric Company | Two-stage led driver with buck pfc and improved thd |
| JP2016158316A (en) * | 2015-02-23 | 2016-09-01 | 株式会社豊田自動織機 | Power supply device |
| CN205081676U (en) * | 2015-11-18 | 2016-03-09 | 广东工业大学 | Be applied to switching power supply's last electric surge current suppression circuit |
| CN105429453A (en) * | 2015-12-28 | 2016-03-23 | 北京英赛德佳科技有限公司 | High power factor power supply based on PFC circuit |
| CN205408214U (en) * | 2016-02-17 | 2016-07-27 | 上海晶丰明源半导体有限公司 | LED (light -emitting diode) drive system |
| CN105763035A (en) * | 2016-04-11 | 2016-07-13 | 广州金升阳科技有限公司 | Method and circuit for improving low-temperature starting capacity |
| CN207011030U (en) * | 2016-12-26 | 2018-02-13 | 吉安伊戈尔电气有限公司 | A kind of high reliability surge protection circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114927591A (en) * | 2021-02-02 | 2022-08-19 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
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