User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH
Page 22
4.1.7.2
Power consumption
When operating the MBa7x with the TQMa7x, power peaks of up to approx. 85 W can occur if all supply voltages from external
modules at the headers are loaded with maximum current. The power supply used must be designed accordingly.
At 100 % CPU load MBa7x and TQMa7x consume approx. 6.5 W.
To measure the power consumption of the TQMa7x, two 50 mΩ resistors connected in parallel are assembled on the MBa7x.
The following figures show circuitry and position of the two 50 mΩ resistors on the MBa7x.
Figure 10: Schematics of shunts on MBa7x
Figure 11: Position of shunts on MBa7x
