L6566A
Figure 2. Typical system block diagram
Description
PFC PRE-REGULATOR
FLYBACK DC-DC CONVERTER
Rectified
Mains
Voltage
Voutdc
PWM/QR controller is turned off in case of PFC's
anomalous operation, for safety
L6563/A
PFC
L6566A
PFC is automatically turned off at light
load to ease compliance with
energy saving specifications.
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