The EPA-104 is a high voltage (±200 Vp), high current (±200 mA), and high frequency (DC to 250 KHz) amplifier designed to drive higher capacitive (low impedance) loads, such as low voltage stacks, at moderate frequencies; or lower capacitive loads, such as ultrasonic devices, at high frequencies.
The ability of an amplifier to drive a piezo device statically is determined by its voltage capability and stability. Its ability to drive a piezo device dynamically is determined by the capacitance of the actuator, the voltage to which it must be driven, and the number of times it must be charged and discharged per second. These establish the current, voltage, and frequency requirements of the amplifier.
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