Some Parts of the books
Page 33 – Understanding Inverter Board
For a newer LCD Monitor design, the inverter board is joining together
with the power board as shown in the above photo. Older LCD Monitor
has the inverter board separated from the power board as shown below
There are four types of inverter designs (topologies) used in the LCD
Monitors.
1) Buck Royer inverter
2) Push pull inverter (Direct Drive)
3) Half bridge inverter and (Direct Drive)
4) Full bridge inverter (Direct Drive)
Number 2, 3 and 4 are called Direct Drive because it eliminates the need
for the inductor (buck choke) and resonant capacitors found in a
conventional Royer Oscillator. In other words, Direct Drive architecture
reduces component count, lower production cost and most importantly
improved transformer designs that optimize performance.
1) Buck Royer Inverter
Block diagram of Buck Royer inverter
To read the full explanation about Inverters and the rest of the chapter of
“LCD Monitor Repair” (200 pages), you may check on the link below:
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Tagged with: LCD monitor repair
Filed under: LCD
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