Aerotech Soloist MP 10, Hardware Manual

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22 Chapter 1 www.aerotech.com
1.2.2. Power Dissipation
The first figure below shows the amplifier power dissipation under continuous power supply and output
current conditions. The values on the graph represent the peak current that the amplifier would provide during
operation. When the bus voltage and output current are known, the amplifier power dissipation is found using
this graph. The second figure shows the maximum recommended ambient temperature as a function of
amplifier power dissipation. Use this graph along with the power dissipation obtained from the first graph to
determine the maximum ambient temperature. If the result is lower than the known operating ambient
temperature, additional measures are required to cool the Soloist MP. Mounting it to a large metal plate for
extra heat-sinking and providing additional fan flow are suggested.
Figure 1-3: Power Dissipation vs. Output Current
Figure 1-4: Ambient Temperature vs. Power Dissipation
EXAMPLE:
80 VDC Bus operation at 2.4 A
Power Dissipation = 7.5 Watts
Maximum Ambient Temperature = 53°C
Soloist MP Introduction