CN209448937U - LED driving power supply with lightning protection function - Google Patents
LED driving power supply with lightning protection function Download PDFInfo
- Publication number
- CN209448937U CN209448937U CN201822010665.7U CN201822010665U CN209448937U CN 209448937 U CN209448937 U CN 209448937U CN 201822010665 U CN201822010665 U CN 201822010665U CN 209448937 U CN209448937 U CN 209448937U
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- Prior art keywords
- port
- fuse
- lightning protection
- power supply
- varistor
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- 239000000919 ceramic Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000005611 electricity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- 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]
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a LED drive power supply who possesses lightning protection function, include: the tail end of the live wire interface is connected with a fuse; one end of the first piezoresistor is connected with the fuse, and the other end of the first piezoresistor is connected with the ceramic discharge tube; the second piezoresistor is connected in parallel with the first piezoresistor; an AC port 1 of the power supply rectifier bridge is connected with a fuse, an AC port 3 is connected with a zero line interface N through an inductance coil with an iron core, a V + port 2 is connected with an LED driving main chip, and a V-port 4 is grounded; the output end of the ceramic discharge tube is connected between the inductance coil with the iron core and the zero line interface; the third piezoresistor is connected in parallel to the power supply rectifier bridge. The utility model discloses utilize electronic components to carry out high lightning protection high surge to general LED drive power supply circuit and absorb and be higher than or be less than nominal operating voltage and turn off LED drive power supply chip power and let it stop PWM output to guarantee that power work is in the nominal range of normal work.
Description
Technical field
The utility model relates to a kind of driving powers, and in particular to a kind of LED drive power for having lightning protection function belongs to
LED drive power technical field.
Background technique
LED illumination at present has obtained wide Fan Yingyong, is related to various applications, such as street lamp, bulkhead lamp, Projecting Lamp
Some outdoor lightings.On-site or the LED illumination lamp that uses of the more place of thunder storm belt usually can generate thunder and lightning because of thunderstorm
Caused some electrical apparatus electric power equipment burn out loss caused by situation, directly get in equipment because having thunder and lightning when thundering, also
Having exactly makes network voltage moment improve to occur burning out equipment situation power grid generation induced voltage.Global power grid electricity is seen again
Pressure is usually in 100V-240V voltage range, so in LED drive power, there are two types of input voltage types, first is that univoltage AC
170-265V, second is that full voltage AC 100-265V.Input current is big when power supply is usually operated at low pressure, and fever is serious.Voltage mistake
Plateau device pressure resistance is inadequate, such as diode, metal-oxide-semiconductor, capacitor etc..It is total to carry out LED drive power and to work in nominal range
It can the safeguard work service life.Otherwise it can go out various bad phenomena.
For this purpose, how to provide the research purpose that a kind of LED drive power for having lightning protection function is the utility model.
Summary of the invention
Deficiency in view of the above technology, the utility model provide a kind of LED drive power for having lightning protection function, pass through benefit
The high surge absoption of high lightning protection is carried out to Universal LED driving power circuit with electronic component and is higher or lower than nominal operating voltage
It carries out shutdown LED drive power chip power and stops PWM output by it, to guarantee power work in the nominal model of normal work
In enclosing.
To solve prior art problem, the technical scheme adopted by the utility model is
A kind of LED drive power having lightning protection function, comprising: LED drives master chip, power rectifier bridge DB1, fuse
F1, the first varistor MOV1, the second varistor MOV2, third varistor MOV3, ceramic discharge tube TVR1, ribbon core electricity
Feel coil L1, fire-wire interfaces L and zero line interface N；The end fire-wire interfaces L connects a fuse F1；First pressure
The one end quick resistance MOV1 connection fuse F1, the other end are connect with the ceramic discharge tube TVR1；Described second
Varistor MOV2 is connected in parallel on the first varistor MOV1；The port AC 1 of the power rectifier bridge connects
The fuse, the port AC 3 are connected described by the port zero line interface N, V+ 2 described in a ribbon core inductance coil L1 connection
LED drive master chip, the port V- 4 be grounded；The output end of the ceramic discharge tube TVR1 is connected to the ribbon core electricity
Feel position between coil L1 and zero line interface N；The third varistor MOV3 is connected in the power rectifier bridge in parallel
On.
Further, the input voltage of LED driving master chip is set as bipolar device supply voltage (VCC).
Further, the ceramic discharge tube TVR1 is chosen for 10KA with higher level.
Further, one end ground connection of LED driving master chip.
The beneficial effects of the utility model are: carrying out high lightning protection to Universal LED driving power circuit using electronic component
High surge absoption and higher or lower than nominal operating voltage carry out shutdown LED drive power chip power by its stop PWM output,
To guarantee power work in the nominal range of normal work.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
In order to make those skilled in the art more understand the technical solution of the utility model, 1 pair of this reality with reference to the accompanying drawing
With novel for further analysis.
As shown in Figure 1, a kind of LED drive power for having lightning protection function, comprising: LED drives master chip, power rectifier bridge
DB1, fuse F1, the first varistor MOV1, the second varistor MOV2, third varistor MOV3, ceramic discharge tube
TVR1, ribbon core inductance coil L1, fire-wire interfaces L and zero line interface N；The end fire-wire interfaces L connects a fuse F1；First pressure
The one end quick resistance MOV1 connects fuse F1, and the other end is connect with ceramic discharge tube TVR1, and ceramic discharge tube TVR1 is chosen for
10KA is with higher level；Second varistor MOV2 is connected in parallel on the first varistor MOV1；The port AC 1 of power rectifier bridge connects
Fuse is connect, the port AC 3 connects LED by a port ribbon core inductance coil L1 connection zero line interface N, V+ 2 and drives master chip,
The input voltage of LED driving master chip is set as bipolar device supply voltage (VCC), and LED drives one end ground connection of master chip；V-
Port 4 is grounded；The output end of ceramic discharge tube TVR1 is connected to position between ribbon core inductance coil L1 and zero line interface N；The
Three varistor MOV3 are connected in parallel on power rectifier bridge.
Working principle of the utility model is: being flowed into power rectifier bridge DB1 to L, N line when high pulse voltage occurs in power grid
When, most of high pressure is absorbed in the concatenated effect of pressure-sensitive MOV1 MOV2 and ceramic discharge tube TVR1.And varistor and pottery
The series connection of porcelain discharge tube pressure-sensitive plays that absorb voltage more low current bigger compared with single.And two working conditions are originals about the same
Reason, in normal voltage operation, varistor and ceramic discharge tube are in high impedance, when voltage is higher than both setting voltages
It reforms into almost in short-circuit pass-through state, the response time very can absorb energy and not damage to circuit fastly.
It is absorbed after MOV1 MOV2 and ceramic discharge tube and also remains a part of voltage of quite high electricity after a part of voltage through L1, by
It is logical direct current resistance exchange in inductance effect, hinders momentary spike voltage so playing.Residual voltage is absorbed into through MOV3 varistor again
To guarantee that power supply works normally in proper range, such as when circuit voltage also in it is excessively high when rectified overvoltage crowbar procuratorial work afterwards
To excessively high, quick closedown LED driving IC power supply VCC voltage makes power supply stop working finally to protect.
Technical solution provided herein is described in detail above, embodiment used herein is to the application
Principle and embodiment be expounded, the explanation of above embodiments be served only for help understand the present processes and its core
Thought；At the same time, for those skilled in the art, according to the thought of the application, in specific embodiment and application range
Upper there will be changes, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (4)
1. a kind of LED drive power for having lightning protection function, it is characterised in that: include: LED driving master chip, power rectifier bridge
DB1, fuse F1, the first varistor MOV1, the second varistor MOV2, third varistor MOV3, ceramic discharge tube
TVR1, ribbon core inductance coil L1, fire-wire interfaces L and zero line interface N；The end fire-wire interfaces L connects a fuse F1；
First one end varistor MOV1 connection fuse F1, the other end and the ceramic discharge tube TVR1 connect
It connects；The second varistor MOV2 is connected in parallel on the first varistor MOV1；The power rectifier bridge
The port AC 1 connect the fuse, the port AC 3 passes through the zero line interface N, V+ described in a ribbon core inductance coil L1 connection
Port 2 connects the LED driving master chip, and the port V- 4 is grounded；The output end of the ceramic discharge tube TVR1 is connected to institute
Position between the ribbon core inductance coil L1 stated and zero line interface N；The third varistor MOV3 is connected in parallel described
Power rectifier bridge on.
2. a kind of LED drive power for having lightning protection function according to claim 1, it is characterised in that: the LED drives
The input voltage of dynamic master chip is set as bipolar device supply voltage (VCC).
3. a kind of LED drive power for having lightning protection function according to claim 1, it is characterised in that: the ceramics
Discharge tube TVR1 is chosen for 10KA with higher level.
4. a kind of LED drive power for having lightning protection function according to claim 1, it is characterised in that: the LED drives
One end ground connection of dynamic master chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010665.7U CN209448937U (en) | 2018-12-03 | 2018-12-03 | LED driving power supply with lightning protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822010665.7U CN209448937U (en) | 2018-12-03 | 2018-12-03 | LED driving power supply with lightning protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209448937U true CN209448937U (en) | 2019-09-27 |
Family
ID=68013195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822010665.7U Active CN209448937U (en) | 2018-12-03 | 2018-12-03 | LED driving power supply with lightning protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209448937U (en) |
-
2018
- 2018-12-03 CN CN201822010665.7U patent/CN209448937U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Floor 7-9, Building 1, No. 7, Baofeng Baocheng Road, Xiaolan Town, Zhongshan City, Guangdong Province, 528415 Patentee after: Guangdong Niubao Power Technology Co.,Ltd. Address before: 2nd Floor, No. 56 Jucheng Avenue, Xiaolan Town, Zhongshan City, Guangdong Province, 528415 Patentee before: ZHONGSHAN NIUBAO ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |