6 Start-Up and Operation
PL0xx/PDxxx Piezo Actuator
PZ265E
Version: 1.0.0
39
6.2.5
Calculating the Power Requirement for Sinusoidal Operation
Calculate the average current requirement for sinusoidal operation using the following
formula:
Calculate the peak current requirement for sinusoidal operation using the following
formula:
Variable
Description
Notes
I
a
Required average current of the
amplifier (source / sink) [A]
It is essential that the power supply can
supply enough current.
I
max
Required peak current of the amplifier
(source / sink) [A]
The provided peak current depends on
the internal storage capacity of the
amplifier.
f
Operating frequency [Hz]
Details on the operating frequency see
"Overview of Limiting Factors" (p. 36).
C
Capacitance of the piezo actuator
[F (= As/V)]
See "Data Table" (p. 49) for the small-
signal capacitance of the piezo actuator.
For large-signal conditions, a safety factor
of 70 % should be added to the small-
signal capacitance.
U
p-p
Operating voltage (peak-to-peak) [V] Voltage difference between positive and
negative peak voltage
6.3
Operating the PL0xx/PDxxx
Requirements
You have read and understood the general notes on start-up and operation (p. 31).
You have determined the operating parameters for your application (p. 35).
You have installed (p. 17) the PL0xx/PDxxx correctly and connected it to the electronics
(p. 29).
You have provided suitable electronics that can supply the required currents (p. 39).
You have read and understood the user manual of the electronics used.
Operating the PL0xx/PDxxx
For starting up and operating the PL0xx/PDxxx, follow the instructions in the manual of
the electronics (p. 3) used.