Epson LQ 1050 Technical Manual - Page 64
Output Transistor Drive Waveform
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REV.-A ~.., As shown in Figure 2-17, when the potential at the NJM2355 is lower than the preset voltage or current c k ", value, it is controlled by the dead-time control voltage. When it exceeds the preset value, it is controlled by the error amplifier to keep it lower than the preset value. o I I I vi ~ I I I / OFF ON OFF ON OFF ON OFF ON o - : @Terminol - - - - - : GTerrnind - . - ". Oead-Time Control Voltage PWM Comparator output :' . . . Figure 2-17. Output Transistor Drive Waveform 2-20 ,.
REV.-A
As shown in Figure 2-17, when the potential at the NJM2355 is
lower than the preset voltage or current
k
“
~..,
value, it is controlled by the dead-time control voltage. When it exceeds the preset value, it is controlled
c
,
by the error amplifier to keep it lower than the preset value.
—
:
@Terminol
-----
:
GTerrnind
. Oead-Time
—.— “
o
Control
I
I
I
I
Voltage
vi
~
I
I
/
OFF
ON
OFF
ON
OFF
ON
OFF
ON
o
PWM
Comparator
output
:’
. .
.
Figure 2-17. Output Transistor Drive Waveform
2-20
,.