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28/10/2013 09:05
PFC stage circuit operates in continuous mode. Input current through R5, R8 and R13 through U1 LED Downlight pin ② testing. Output DC bus voltage (395V) by divider R7, R10, R12 and R13 samples fed to U1 pin FB.U1 pin to a voltage error amplifier output ④ , C17, C18 and C21 for the...
25/10/2013 08:27
2, the overall parallel form
LED Downlight
2.1 Simple parallel form
Simple parallel in both LED1-n parallel work on the withstand voltage of each LED is equal . Seen from the characteristics of the...
25/10/2013 08:27
Common form of connection
MR16
In the application, by a plurality of LED according to certain laws common form of connection permutations and combinations , there are four , are described below .
A whole series form T8 Tube
Generally simple series connection in the way...
25/10/2013 08:27
Furthermore, as device dimensions continue to shrink , screen size and resolution graphic LED Bulb printing has its limitations , as the reduced size , screen printing rendered image size differences of each unit ( uniformity ) and the metal thickness difference will be more obvious. In...
24/10/2013 08:57
(1) CNC dimming electronic ballast composition and working principle
LED Lighting china
NC dimming electronic ballast circuit should contain the following sections: EMI filter, rectifier, power factor correction, electronic ballast output stage and CNC dimming control circuit shown in Figure 2....
24/10/2013 08:56
1, DALI light control interface software
MR16
(1) Lights address, group address and the lamp lights to set the broadcast address associated interface
Respectively, in Figure 2 the relevant user interface, Figure 3, Figure 4, Figure 5.
T8 Tube
(2) I / O port selection
You start...
24/10/2013 08:56
Use of CNC lighting dimming control system can achieve the entire lighting environment full and precise control.
LED Bulb
2, the microprocessor CNC Lighting Dimming Control
LED Module
Microprocessor CNC lighting dimming control system core, it can receive instruction manual,...
23/10/2013 09:11
If there are two pointer multimeter ( preferably the same model ) can better check emitting LED Bulb diode emitting situation . Which will be a wire with a multimeter on the "+ " terminal and the other a statement of the " - " terminal connection. The remaining " - " pen then...
23/10/2013 09:11
electromagnetic compatibility requirements are very high , a good power supply design must be taken into account these factors , because the power supply in the entire luminaire like the role as important as the human heart . LED Downlight
LED power level due to the restrictions...
23/10/2013 09:04
2 . Detecting infrared light-emitting diode
MR16 Because infrared light-emitting diodes, which emit 1 ~ 3μm infrared light , the human eye can not . Usually single infrared LED transmitter power only a few mW, different models of infrared LED luminous intensity...
