Figure 12.5 Identifying The Circuitry In The Ac Module - Tait TB8100 Service Manual

Figure 12.5 Identifying the circuitry in the AC module
b
EMC filter, protection and AC switch
c power factor correction (PFC)
d PFC control
e high voltage to DC converter
f 28VDC input from the DC converter board
g current sense and output filter
h 28VDC output for PA
i 28VDC output for reciter
j 28VDC output to auxiliary power supply board
1) microprocessor control
1! AC and DC voltage and current control
1@ HVDC control
1# fuse (10A 250V)
1$ AC mains input
Note:
In order to show as much of the circuitry as possible in the
photograph, the heatsinks and the components normally
attached to them are not fitted, and the plug-in cards are not
plugged in.
TB8100 Service Manual
© Tait Electronics Limited September 2006
1$
1#
1@
1!
1)
j
h
b
c
d
e
f
g
h
i
Power Management Unit Circuit Description 211