UBA2015 PHILIPS [NXP Semiconductors], UBA2015 Datasheet - Page 21

• Manufacturer Part Number: UBA2015
• Description: 600 V fluorescent lamp driver with PFC, linear dimming and boost function
• Manufacturer: PHILIPS [NXP Semiconductors]

Fig 14. Switching
SENSE
GND
zero voltage switching
hard switching (due to small phase
difference between V
hard switching (due to
small amplitude of i
boundary of capacitive
mode switching
capacitive mode switching
GHHB
SHHB
GLHB
HV
load
high side
switch
SHHB
)
low side
switch
and i
I
load
load
)
V
V
V
GHHB
GLHB
SHHB
I
load
V
V
SHHB
FSHB
GND
GND
VDD
V
HV
0
t
no(LH)
V
step(SHHB)
t
no(HL)
001aan209