PiezoDrive PDUS210 Manual And Specifications page 5

For example, the optimal impedance of the PDUS210-400 is 100 Ohms, so with a 50 Ohm load, the
normalized impedance is 0.5, From the plot, it can observed that greater than 100 W can be achieved
with a normalized impedance from 0.65 to 2.1, which for the PDUS210-400, is 65 Ohms to 210 Ohms.
Figure 1. Maximum output power versus normalized impedance
The impedance ranges for other common power levels are listed in the following table. For example,
all amplifiers will supply more than 150W with a normalized load impedance between 0.71 and 1.4.
For the PDUS210-400, this is equivalent to 71 Ohms and 140 Ohms.
Minimum Power
Table 1. Minimum achievable power versus load impedance.
PDUS210 V5 Manual
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150W
100W
50W
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Lower Bound
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0.65 × ��
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0.53 × ��
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Upper Bound
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1.4 × ��
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2.1 × ��
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4.2 × ��
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Modified 17/12/2022