Service manual SC-140
-57-
5-9 Power supply (STR F6654)
5-9-1 STR-F6654 general description
The STR-F6654 is an hybrid IC with a build-in MOSFET and control IC, designed for flyback converter type switch
mode power supply applications.
5-9-2 Power supply primary part operations
An oscillator generates pulses signals which turn on and off a MOSFET transistor.
5-9-2-1 Start-up circuit : V
IN
The start-up circuit is used to start and stop the operation of the control IC, by detecting a voltage appearing at V
IN
pin (pin 4).
Summary of Contents for DSC-3210E
Page 32: ...Service manual SC 140 31 Block diagram TDA8944J...
Page 35: ...Service manual SC 140 34...
Page 37: ...Service manual SC 140 36 Block diagram TDA6107Q...
Page 42: ...Service manual SC 140 41 5 Circuit description 5 1 Block diagram...
Page 60: ...Service manual SC 140 59 5 9 2 2 STR F6654 oscillating operation...
Page 78: ...Service manual SC 140 77 8 PCB Layout...