Vicor PRM-AL Customer Evaluation Boards - Manual (Page 3)

UG:003 vicorpower.com Applications Engineering: 800 927.9474 Page 3
e. Toggling the switch indicated OSV (OS Variable) to the ON position requires the
switch indicated OSF (OS Fixed) be placed in the OFF position and allows the
PRM® output set point to be varied within the range specified on the data sheet.
f. Toggling the switch indicated OSF to the ON position sets the output of the PRM
to the nominal value indicated on the data sheet. If this switch is in the OFF
position and the OSV switch is also OFF, the unit will not function.
g. IT IS BEST TO SET THE SWITCH POSITION AND CORRESPONDING TRIM POT
SETTINGS BEFORE APPLYING POWER TO THE BOARD.
6. Test point for Secondary Control (SC).
7. Output voltage points are designed to accommodate #10 hardware and
Panduit ring lugs.
8. Output connector (J01) for mating with VTM-CB providing Vout and VC. As shown
on the schematic (Figure 2) there are four pins dedicated to the + Out, four for the
-Out, and two for the VC. Each contact is rated for 3 A. The excess capacity afforded
by these pins can facilitate testing multiple VTM-CBs from a single PRM-CB using an
appropriate wiring harness and mating connector. This may also be achieved using
the large pads of Item 7.
9. Output scope jack (J02). Headers H01 and J01 are 0.100" spacing, 10 position female,
manufactured by Sullins Electronics and available from Digi-Key as part # S5519-ND.
Figure 2.
PRM-CB schematic diagram