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# Required elements for operating the drive board
1. Power
- Supplied from the power board. Optimized value may differ slightly from the following value.
a) Vs
: 85V
b) Vset
: 60V ~70V
c) Ve
: 110V
d) Vscan
: 70V ~80V
e) Vdd
: 3.3V
f) Vcc
: 15V
2. Logic Signal
- Supplied from the logic board
- Gate signal of each FET
Samsung Electronics
- Sustain
- Y Rising Ramp
- Ve bias
- Scan bias
- Logic signal buffer IC
- FET Gate drive IC
Circuit Operation Description
5-21
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