User Manual – Rev BE AMETEK Programmable Power
MX Series 201
5.7.4 Filter Boards
A set of two identical inductor boards is located behind the Modulator board and
next to the four amplifier boards. One filter board handles the "A" output, the
other handles the "B" output. In addition to the filtering function performed by
these boards, the inductor boards also contain current sensors that are used in
the feedback loop of the amplifier. The output of these current sensors is routed
to the modulator board to regulate current sharing and peak current limiting.
5.7.5 Fan Supply Board
The Fan Supply board is in the wind tunnel of the PFC section at the bottom of
the power module. This board provides variable speed control for the dual fans
of the power module. Fan speed is a function of the load current sensed. This
provides for lower levels of audible noise during minimal load conditions.
5.7.6 Output Snubber Board
A small output snubber board is attached to the output terminals of each power
module. This snubber provides the required operating stability of the amplifiers.
CAUTION
VOLTAGES UP TO 480 VAC AND 500 VDC ARE PRESENT IN
CERTAIN SECTIONS OF THIS POWER SOURCE.
THIS EQUIPMENT GENERATES POTENTIALLY LETHAL
VOLTAGES.
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