CN204733410U - A kind of multifunctional intellectual induction LED fluorescent tube - Google Patents
A kind of multifunctional intellectual induction LED fluorescent tube Download PDFInfo
- Publication number
- CN204733410U CN204733410U CN201520159134.8U CN201520159134U CN204733410U CN 204733410 U CN204733410 U CN 204733410U CN 201520159134 U CN201520159134 U CN 201520159134U CN 204733410 U CN204733410 U CN 204733410U
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- CN
- China
- Prior art keywords
- triode
- optocoupler
- power
- conducting
- disconnects
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of multifunctional intellectual induction LED fluorescent tube, adopt floating ground drive IC scheme, rear class increases a power frequency filter circuit, and floating ground drive IC scheme adopts built-in MOS mode, and adopts the resistance of control CS pin position to regulate fluorescent tube secretly bright.Relative to prior art, the utility model power supply can realize full voltage range input, high PF preferably, and cost is low, without stroboscopic.
Description
Technical field
The utility model relates to a kind of lighting apparatus, particularly relates to a kind of LED lamp tube.
Background technology
Existing induction LED tube power drive scheme comparatively common is on the market at present: the IC scheme (MOS drives altogether) of band DIM light modulation end and buck topology+amplifier constant current (secondary constant current) scheme.The subject matter that the former exists is that it is difficult to do the driving of " full voltage " scope, and the power drives scheme of present often " world's voltage is general " that demand is more on the market, and cost also can be higher, because the IC unit price of band DIM light modulation end can be higher than general.The latter's cost can be higher, because add an amplifier IC to control the stable of electric current to do constant current ring.Therefore, existing this type of more common on the market induction fluorescent tube is all or narrow voltage (AC180-240V) inputs, low PF, or Width funtion input (AC100-240V), high PF, but has stroboscopic phenomenon, and price costly.
Utility model content
The purpose of this utility model is to solve prior art problem, provide a kind of can realize full voltage range input, high PF, cost low, without the induction LED fluorescent tube of stroboscopic.
For achieving the above object, the utility model provides a kind of multifunctional intellectual induction LED fluorescent tube, and adopt floating ground drive IC scheme, rear class increases a power frequency filter circuit, floating ground drive IC scheme adopts built-in MOS mode, and adopts the resistance of control CS pin position to regulate fluorescent tube secretly bright.
Relative to prior art, the utility model power supply can realize full voltage range input, high PF preferably, and cost is low, without stroboscopic.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model embodiment multifunctional intellectual induction LED fluorescent tube.
Fig. 2 is the circuit diagram that the utility model embodiment floats ground drive circuit.
Fig. 3 is the circuit diagram of the utility model embodiment power frequency filter circuit.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described further.
As shown in Figure 1, the present embodiment multifunctional intellectual induction LED fluorescent tube adopts floating ground drive IC scheme, is not with DIM light modulation end function (cheaper adopts the resistance of controls CS pin position to regulate fluorescent tube bright secretly), full voltage input, high PF, without stroboscopic and price is more economical.
As shown in Figure 2, the IC scheme (not being with DIM light modulation end) that the present embodiment drives with floating, single-stage PFC circuit, achieve high-low pressure (full voltage) preferably compatible, high PF value, and the built-in MOS switch of IC, realize by two-stage triode+optocoupler and low pressure metal-oxide-semiconductor the function regulating brightness:
1, when Out signal is low level, triode Q5 disconnects, triode Q4 conducting, and the luminescence of optocoupler interior light emitting diodes is strengthened, the conducting so the photosensitive receiving tube of optocoupler inside is upset, so triode Q2 grid step-down level, low pressure MOS disconnects, so power resistor R1 is exactly open-circuit condition, now, power is 3-5W, and the phenomenon showed is low bright state, i.e. battery saving mode;
2, when Out signal is high level, triode Q5 conducting, triode Q4 disconnects, there is not allowing the current potential of its conducting in optocoupler interior light emitting diodes level, so the photosensitive receiving tube of optocoupler inside also presents open-circuit condition, so triode Q2 grid uprises level, and low pressure MOS is open-minded, so power resistor R1 is exactly channel status, with another one power resistor parallel relationship, now, power is total power, the phenomenon showed is complete bright state, i.e. full-power mode.
As shown in Figure 3, the present embodiment adds a power frequency filter circuit in rear class, and this circuit overcomes the defect that other circuit have stroboscopic, does not just have so large injury like this to human eye.
The present embodiment advantage and effect are: this circuit framework (driving) can realize full voltage range input floatingly preferably, high PF, and cost is low, because IC is integrated with a high-pressure MOS in inside for this reason, need not increase the cost of an external MOS in addition; In addition, this IC is not with DIM light modulation end, and IC inherently wants cheap, and our circuit adds a power frequency filter circuit in rear class, can realize the shortcoming of general single-stage PFC circuit: stroboscopic.So the whole circuit of the present embodiment is the effect both having played cost declining, has newly increased again some New function, and be Vehicles Collected from Market is valued most a bit: room lighting without stroboscopic function.
The present embodiment IC driver can be replaced flexibly, as long as such as drive floatingly, the IC scheme of single-stage PFC can realize substantially.Certainly containing some floating ground drive IC schemes of built-in MOS, such as SD690X series, effect can be better.
Above are only preferred embodiment of the present utility model, certainly, explore according to actual needs and further and can also have other execution mode.But, it is clearly understood that, based on similar above-mentioned or other conversion with the execution mode of same idea do not stated out, all should be encompassed within protection range of the present utility model.
Claims (2)
1. a multifunctional intellectual induction LED fluorescent tube, it is characterized in that, adopt floating ground drive IC scheme, rear class increases a power frequency filter circuit, realize by two-stage triode+optocoupler and low pressure metal-oxide-semiconductor Q2 the function regulating brightness, triode Q5, triode Q4, optocoupler are connected successively with low pressure metal-oxide-semiconductor, and triode Q5, triode Q4 are set to: when Out signal is low level, triode Q5 disconnects, triode Q4 conducting; Out signal is high level, triode Q5 conducting, and triode Q4 disconnects; Triode Q5 collector electrode connects anode and the triode Q4 base stage of optocoupler, and triode Q4 collector electrode connects the negative electrode of optocoupler, and triode Q2 connects with power resistor R1, and both are in parallel with another one power resistor; When Out signal is low level, triode Q5 disconnects, triode Q4 conducting, and the luminescence of optocoupler interior light emitting diodes is strengthened, the conducting so the photosensitive receiving tube of optocoupler inside is upset, so triode Q2 grid step-down level, low pressure MOS disconnects, so power resistor R1 is exactly open-circuit condition, now, power is 3-5W, and the phenomenon showed is low bright state, i.e. battery saving mode; When Out signal is high level, triode Q5 conducting, triode Q4 disconnects, there is not allowing the current potential of its conducting in optocoupler interior light emitting diodes level, so the photosensitive receiving tube of optocoupler inside also presents open-circuit condition, so triode Q2 grid uprises level, and low pressure MOS is open-minded, so power resistor R1 is exactly channel status, with another one power resistor parallel relationship, now, power is total power, the phenomenon showed is complete bright state, i.e. full-power mode.
2. multifunctional intellectual induction LED fluorescent tube according to claim 1, is characterized in that, floating ground drive IC scheme adopts built-in MOS mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159134.8U CN204733410U (en) | 2015-03-20 | 2015-03-20 | A kind of multifunctional intellectual induction LED fluorescent tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159134.8U CN204733410U (en) | 2015-03-20 | 2015-03-20 | A kind of multifunctional intellectual induction LED fluorescent tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204733410U true CN204733410U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520159134.8U Expired - Fee Related CN204733410U (en) | 2015-03-20 | 2015-03-20 | A kind of multifunctional intellectual induction LED fluorescent tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204733410U (en) |
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2015
- 2015-03-20 CN CN201520159134.8U patent/CN204733410U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20170320 |