Epson LQ 1050 - B/W Dot-matrix Printer - Page 64

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
,.