“First, let’s take a look at several factors that can affect EMI/EMC: the Circuit structure of the driving power supply; switching frequency, grounding, PCB design, and reset circuit design of the smart LED power supply. Because the original LED power supply is a linear power supply, but the linear power supply will lose a lot of energy in the form of heat during operation. The working...
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104PW191 inverter for LCD(Liquid crystal Display) modules is composed of a DC/AC iversion circait,a luminance eontrlo circait and a boosting transforme.
The DC/AC inversion Circuit inverts a direct current (DC) Power supply into an altar crrent （AC) by the center-tap transmitter circuit that used transstors.
The luminance control circuit can control the luminance of cold cahode lamps ofr LCD backlight unit.tothe high AC voltage.Also the high AC voltage is outputed from a secondary side of thebosting transformer.
High AC voltage generator of cold cathode fluorescnt lamp for LCD
Pulse width modlion circuit
Luminance control system Pulse width modulation
Input voltage for power supply 12V（typ)
Input current Power supoply for inverter 530~750mA
Outpu voltage At steady state 60Vrms
Outpu voltage At open(e.g.Start-working of lamp) 1250~1500Vrms.
Combined load Resistance 85ko
Combined load Stra capacity 5pF
Oscillation frequency 65kHz
Board size 105.0(W)*26.5(H)*100（D)mm
Adaptable product LCD moule NL0276BC20-04
High voltage caution 750mA/1500V