Main Power Terminals, Logic Power, Cooling Fan - Wolfspeed SPEEDVAL KIT HALF-BRIDGE MOD-MB-HB-0900V-40A User Manual

4.1. MAIN POWER TERMINALS, LOGIC POWER, COOLING FAN

Terminals CON1 and CON5 are the +DC Bus connections. Terminals CON3 and CON4 are the -DC
Bus connections. CON2 is the switched node or midpoint connection.
The SpeedVal Kit platform only requires a single 12 VDC 3 A power supply for control power,
which is connected to CON12. The current drawn will vary based on the selection of gate driver
cards, control board, power daughter card, and test conditions.
There are two fan power connectors included on the motherboard. One is to power the onboard
fan, and the other is to power the fan on the optional buck boost filter board. The fan power can
be controlled manually with switch S1 or automatically with one of the optional control cards. If
one of the optional control cards is plugged into the motherboard, the fans will turn on
automatically whenever power tests are run. More detailed specifications on the fan and fan
power capacity is contained in the thermals section of this document.
Fan power
connectors
Manual fan
control
S1
+12V Logic
Power
CON12
F 8: M
IGURE AIN
PRD-06829 REV. 1, December 2022
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P T , L
OWER ERMINALS OGIC
SpeedVal Kit™ Half-Bridge User Guide
P I , C
OWER NPUT AND OOLING
+DC Bus
connections
CON1, CON2
Midpoint
connection
CON2
-DC Bus
connections
CON3, CON4
F L
AN OCATIONS
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