CN108495401A - A kind of high-power LED fluorescent lamp - Google Patents
A kind of high-power LED fluorescent lamp Download PDFInfo
- Publication number
- CN108495401A CN108495401A CN201810158385.2A CN201810158385A CN108495401A CN 108495401 A CN108495401 A CN 108495401A CN 201810158385 A CN201810158385 A CN 201810158385A CN 108495401 A CN108495401 A CN 108495401A
- Authority
- CN
- China
- Prior art keywords
- circuit
- fluorescent lamp
- power
- led fluorescent
- power led
- 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.)
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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]
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of high-power LED fluorescent lamp, external form and size are as similar product, and difference is that driver is different with luminescent screen circuit, it has about 25W power, fully meets the lighting requirement of user.
Description
Technical field
The present invention relates to a kind of high-power LED fluorescent lamps.
Background technology
Popular LED daylight lamp currently on the market, power is all in 20W hereinafter, brightness is felt in the illumination to some users
Not enough.
Invention content
A kind of high-power LED fluorescent lamp of the present invention, discloses a kind of high-power LED fluorescent lamp.Outside this fluorescent lamp
It sees and size is as similar product, difference is that driver is different with luminescent screen circuit, it has about 25W power, completely full
The lighting requirement of sufficient user.
A kind of high-power LED fluorescent lamp, circuit structure is by ac filter circuit, full bridge rectifier, power factor
Correcting circuit, PWM modulation circuit and LED lighting board circuit composition.
Description of the drawings
Fig. 1 is a kind of circuit diagram of high-power LED fluorescent lamp.
Specific implementation mode
As shown in Figure 1, ac filter circuit is made of C1, C2, L1, L2, L3 circuit, wherein C1, C2 are safety capacitances,
L1, L2 are differential mode inductances, and L3 is common mode inductance, ac filter circuit are formed by above-mentioned electronic component, input AC 220V
The non-sinusoidal waveform of power supply filters out, and rectifier circuit rectifies are supplied with high-quality AC power.
As shown in Figure 1, IC1 is bridge rectifier, alternating current 220V power supply is become the DC power supply of pulsation, then send work(
Rate factor correcting circuit.The voltage signal of bridge rectifier output is continuous, but non-continuous event occurs in current signal, makes load
Power factor reduce, influence the utilization rate of power supply.For this purpose, introduce circuit of power factor correction, it by R1, C3, C4, C5, D1,
D2, D3 are formed, and power factor can be increased to 0.9 or more.
As shown in Figure 1, IC2 and peripheral circuit form PWM modulation circuit, IC2 is model PT4207 chips, and resistance R2 is to open
Dynamic resistance, by giving card power supply after the clamping down on of chip interior Zener diode.R5 is off time setting resistance, chip
Inside metal-oxide-semiconductor, high-voltage MOS pipe T, fast recovery diode D5, power inductance L4, the sampling resistor R6 of PT4207, composition bootstrapping
Formula driving circuit, powering load.R6 is also current sampling resistor simultaneously, and sampling passes through the peak point current of chip interior metal-oxide-semiconductor,
It feeds back to chip and carries out PWM controls, to reach constant current effect.
As shown in Figure 1, LED is luminescent screen circuit, concatenated connection type, effect are to reduce LED daylight all the way for use
The work total current value of lamp reduces calorific value when fluorescent lamp work, to improve the energy-saving effect of LED daylight lamp.
As shown in Figure 1, V is varistor, anti-lightning and transient overvoltage protective effect are played in circuit.B is insurance
Silk, plays overload protection in circuit.E is negative tempperature coefficient thermistor, plays the role of antisurge in circuit.
Claims (1)
1. a kind of high-power LED fluorescent lamp, circuit is formed by ac filter circuit, full bridge rectifier, PFC
Circuit, PWM modulation circuit and luminescent screen circuit composition, it is characterised in that：The apparent size of LED daylight lamp and similar product one
Sample, difference are that driver is different with luminescent screen circuit, it has about 25W power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158385.2A CN108495401A (en) | 2018-02-23 | 2018-02-23 | A kind of high-power LED fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158385.2A CN108495401A (en) | 2018-02-23 | 2018-02-23 | A kind of high-power LED fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108495401A true CN108495401A (en) | 2018-09-04 |
Family
ID=63340595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810158385.2A Withdrawn CN108495401A (en) | 2018-02-23 | 2018-02-23 | A kind of high-power LED fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108495401A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846506U (en) * | 2010-10-09 | 2011-05-25 | 大连森谷新能源电力技术有限公司 | High efficiency light-emitting diode (LED) circuit driven by constant current source |
-
2018
- 2018-02-23 CN CN201810158385.2A patent/CN108495401A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846506U (en) * | 2010-10-09 | 2011-05-25 | 大连森谷新能源电力技术有限公司 | High efficiency light-emitting diode (LED) circuit driven by constant current source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180904 |