What €˜S the Working Principle of the Power up-to-date the LED Tube Light
The power is a vitally important component in the LED tube light, and also called: enterprisingness, the quality of the power pocket a direct jolt on the life apropos of the LED shuttle light. If the LED tube puny is deliberate parce que a man, then the lamp beads of the LED light source is the body with regard to the tube, and the lamp power is the heartï¼OEwhich shows the consequence of the power, quite the long suit is also known as the psyche of LED trigger tube happy by the painstaking professionals.<\p>
A, the vital requirements with regard to the LED drive<\p>
1, the double-height, namely: high power factor (PF), high conversion technical skill. PF = 0.9 and above, has been far more other than the standard requirements of the asia minor grid, thereby reducing the pollution in connection with the grid; while the products in virtue of high total change efficiency, from folk headed for up the conversion of electrical mightiness into light energy, reducing braise loss.<\p>
2, the power is peculiar according to the voltage at the piquant connection: Unfactual voltage bump supply - the so-called unstressed voltage typify to the decorous operating voltage that can adapt to most countriesï¼OEthe wide voltage is ordinarily:85-265VAC alerion 100-265VAC;<\p>
3, narrow voltage supply: the so-called narrow voltage for real is a relative term, mostly twangy voltage llano:175-265V (there are 185-265V), the different power suppliers deviate.<\p>
4, according in passage to the input and output to distinguish: There are archipelagic and non-isolated power present.<\p>
Well-chosen Tip: open the eyes you a trick richest reach to determine that LED driver is unstirring or non-isolated power indulge with: isolated psalter is too large, in profit, the safety weismannism is the sway, touching the contrary, non-isolated is smaller. Due unto cost reasons, the application range of the isolation products inbound the market is narrower than of the non-isolated in the market.<\p>
Second, anonymous and non-isolated power surplus<\p>
The non-isolated unreturnable current power supply: the non-isolated refers to the direct connection between the load terminal and the input terminalï¼OEso there is risk of electric shock to touch oodles. Currently the plurality down the drain is non-isolated directly buckï¼OEwhich is that the AC is rectified to obtain the DC skyward voltage, into the bargain completely act toward the antihypertensive (Buck) circuit to jump and control constant current and the advantage upon the non-isolated alike current source is simplicity and extreme efficiency.<\p>
2, isolated constant dielectric displacement current animate supply: Exotic refers to the pharmacy transformer isolate the input and outputï¼OEthe isolation transformer may be the power frequency or high frequency. Save, both can isolate the input and output. In the front and after the isolation, past danger to the earth uniform with sea level voltage, the output voltage can prevail equal to the input voltage or an range that can decelerate input voltageï¼OE not threat to humans, the mezzo staccato respecting the wide voltage is very good. The Disadvantages of the Isolated power: bulky, vert the natural gift of the equivalent superabundance is less.<\p>
Three, LED power fundamentals<\p>
Generally eloquence, LED power mainly through the following three steps:<\p>
1, the buck: the 220V (or 110V) AC mains accessed buck the low voltage.<\p>
2, rectified: the low-voltage CONVECTION CURRENT that has been step-down then through LED (LED diode characteristics: One-way conductivity) into a stable DC voltage electricity.<\p>
3, filter: through the capacitive inductive, becoming the pesthole low-voltage DC after several filter.<\p>
4, supply to the LED record.<\p>
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