Samsung DVD905 Service Manual page 22

3 Waveform
Vin
0
Fig. 2-7
ON/OFF
Control
Ton
0
Fig. 2-8
Vp
0
Fig. 2-9
Vs
0
Fig. 2-10
Samsung Electronics
t
Toff
f t
Vin
t
Vps
Vs1
t
Vs2
Vswitch
Ton Toff
0
Fig.2-11
Iswitch
0
Fig. 2-12
Vout
0
Fig. 2-13
Reference Information
Vin–Vp
t
t
t
2-3