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13/09/2013 09:51
I. What is the power factor
MR16
We know that all generators are rotating machinery , the resulting voltage is sinusoidal , this is what we called alternating current. An alternating current through electromagnetic induction advantage that can be used to change the voltage transformer , and...
13/09/2013 09:51
The next step how to do it ? Is to improve the performance and reduce the value . Flip- wave LED Bulb silicon substrate LED chips , more efficient , technology will be better. 6 in. silicon substrate GaN-based high power LED development, is expected to reduce the cost of 50 % or...
13/09/2013 09:51
General test requirements of the standard mains frequency at 50Hz (± 0.5%) within ; during LED Downlight stabilization requires preheating the lamp supply voltage ± 0.5% of the rated value , the measure requires the supply voltage rating of ± 0.2%, within supply voltage...
12/09/2013 08:39
Abstract: LED Flood Light (ledDownlight) also known as spotlights, projection lamps, spotlights, etc., mainly used for architectural lighting purposes, as well as commercial space lighting, decorative element heavier, with its rounded shape also well-run, because the general had reason to...
12/09/2013 08:38
Spotlights What other things do need to pay attention?
LED Bulb
1, high-purity aluminum reflector plate, the beam the most accurate reflection the best results.
2, symmetrical narrow-angle, wide angle and optical systems with asymmetric.
3, replace the lamp behind the open type,...
12/09/2013 08:12
LED floodlight is a uniform illumination in all directions can be a point source, and its illuminated MR16 area can be adjusted in the scene appears as a regular octahedron icon. Floodlights in effect, making them the most widely used of a light source, the standard floodlights used to...
11/09/2013 09:03
In production applications, it is important , which is equivalent to the system greatly reduces the LED Downlight risk of failure . Makes this solution not only in performance has been a qualitative leap in reliability is also greatly improved . DU8618 1A integrated high-voltage...
11/09/2013 09:02
Charge Pump LED Driver Now in mobile phones and other small- size LCD backlighting LED Bulb applications commonly used because of their high brightness , low cost and easy to implement . External charge pump components needed only three or four capacitors , and no inductance....
11/09/2013 09:02
Figure 1:8 inch LCD module backlight circuits.
MR16
First calculate how much processing 2W load switching current . Assuming 80% efficiency , the input current is equal to Vout × Iout / Vin × efficiency = 10 × 0.18 / 5 × 0.8 = 450mA.CAT4139 inductive boost LED driver with 750mA ( min )...
11/09/2013 09:02
In production applications, it is important , which is equivalent to the system greatly reduces the LED Downlight risk of failure . Makes this solution not only in performance has been a qualitative leap in reliability is also greatly improved . DU8618 1A integrated...
