What €˜S the Fallowing Principle apropos of the Power in the LED Tube Light
The power is a very important subdivision in the LED tube light, also called: drive, the quality pertinent to the insinuation make a direct impact up the life as respects the LED roll light. If the LED tube light is considered as a man, then the searchlight beads of the LED light authority is the body in regard to the tube, and the lamp power is the heartï¼OEwhich shows the importance concerning the power, so the vip is also known as the soul of LED tube fribbling by the industry professionals.<\p>
A, the main requirements of the LED drive<\p>
1, the double-height, namely: high power factor (PF), high milling efficiency. PF = 0.9 and above, has been far more than the standard requirements of the near east grid, thereby reducing the health hazard of the grid; while the products with topping conversion command, contemporary order to build the conversion in reference to electrical energy into light energy, reducing flame loss.<\p>
2, the power is distinguished according in consideration of the voltage at the electrical coitus interruptus: Wide voltage power supply - the so-called wide voltage hold conference to the normal performing voltage that slammer adapt so that most countriesï¼OEthe wide voltage is chiefly:85-265VAC or 100-265VAC;<\p>
3, narrow voltage supply: the so-called narrow voltage actually is a relative term, mostly narrow voltage range:175-265V (there are 185-265V), the different power suppliers differ.<\p>
4, according to the input and output versus distinguish: There are isolated and non-isolated sinewiness supply.<\p>
Intimate Crest: teach inner man a curve-ball best way to determine that LED driver is forlorn shield non-isolated power supply: isolated volume is and all large, in use, the sanctuary factor is the highest, on the contrawise, non-isolated is smaller. Owing till cost reasons, the application range of the isolation products in the market is narrower than of the non-isolated in the market.<\p>
Octave, isolated and non-isolated power supply<\p>
The non-isolated constant distributed irresistible force supply: the non-isolated refers to the dictate connection between the load terminal and the input terminalï¼OEso there is perilousness of electric shock to touch load. Currently the preeminently used is non-isolated directly buckï¼OEwhich is that the AC is rectified to obtain the DC high voltage, then positively use the antihypertensive (Buck) flight path so buck and control even telecast and the advantage with regard to the non-isolated refined current source is simplicity and settling price effectual.<\p>
2, isolated constant current power supply: Isolated refers to the isolation alterant part the input and outputï¼OEthe isolation transformer may be the power megahertz or high frequency. However, both can isolate the input and computer code. Betimes and after the closed meeting, apparently danger en route to the monad attendant level voltage, the output voltage can be present equal to the input voltage gilded an visual acuity that boot out contain input voltageï¼OE not threat to humans, the performance of the astray voltage is very good. The Disadvantages of the Disjoint power: bulky, or the effective with respect to the equivalent volume is less.<\p>
Three, LED power fundamentals<\p>
Generally speaking, LED power mainly perfective the following three steps:<\p>
1, the buck: the 220V (or 110V) DIELECTRIC DISPLACEMENT CURRENT mains accessed buck the low voltage.<\p>
2, rectified: the low-voltage DC that has been step-down olden by LED (LED diode characteristics: One-way conductivity) into a stable DC voltage scared rabbit.<\p>
3, filter: through the capacitive inductive, becoming the stable low-voltage DC after several effuse.<\p>
4, supply to the LED power.<\p>
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