Circuit Operating Descriptions
13-4
Samsung Electronics
GND
PICF1
Icease
R
C
R
FB
C
Softs
POWER-CTL
Mos-Fet
Drain
VCC
Ib
R
D
C
Ig
R
Vin
Snubber
NP
Ig
VB
VB
PTDI
Ns
Vs
I2
PDS34
PES34
+
Vout
GND
Ib
Vb
I2
I1
VD-G
0
<
<
<
<
Off
ON
+
Fig. 13-8 Driving Circuit