E-481 PICA Piezo High-Power Amplifier/Controller

2000 W and high efficiency due to energy recovery

Peak power 2000 W
Integrated energy recovery
Output voltage 0 V to ±1100 V or bipolar
Overheat protection for piezo actuators with temperature sensor
Position control (optional)
Interface/display modules (optional)

quote / order

E-481.00: Operating limits (open loop) with various piezo loads, capacitance values in nF

PICA high-performance piezo amplifier

For dynamic continuous operation of PICA piezo actuators with high electrical capacitance. Analog control. Output voltage to 1100 V, bipolar can be set.

Energy saving of up to 80 percent due to switched amplifier principle

Switching amplifier with pulse width modulation (PWM) of the piezo output voltage. When the piezo actuator is discharged, a circuitry for energy recovery stores part of the returning energy in a capacitor and makes it reusable for the next charging cycle. The amplifier runs cooler and provides better stability.

Application fields

Industry and research. Active vibration absorber. Adaptive mechanics. Precision mechanics/machining. Optics. Metrology/measuring technology. Interferometry. Adaptive systems technology. Switching applications. Laser tuning. Force generation / material testing. Nanotechnology.

Download datasheet specifications quote / order

Datasheet

Version / Date

2026-07-03

pdf - 463 KB

Version / Date

2026-07-03

pdf - 467 KB

Version / Date

2026-07-03

pdf - 715 KB

Download

Basics	E-481.00	Tolerance
Housing type	Rack insert 19"
Drive type	PICA
Protective functions	Deactivation of the voltage output in case of internal overheating ǀ Overheat protection of the piezo actuator
Motion and control	E-481.00	Tolerance
Interfaces and operation	E-481.00	Tolerance
On/off switch	Hardware switch on/off
Display and indicators	Power LED ǀ Overtemp LED ǀ Overload LED
Analog input signal	±1/100 of the selected output voltage range

With optional position control: 0 V to 10 V
DC offset setting	10-turn potentiometer, adds 0 V bis ±10 V to the input voltage
Supported temperature sensor mechanical unit	PT1000 on piezo actuator
Amplifier	E-481.00	Tolerance
Voltage gain	±100
Large signal bandwidth 1	0.35 kHz
Large signal bandwidth 1, capacity	3.4 µF
Large signal bandwidth 2	1.4 kHz
Large signal bandwidth 2, capacity	660 nF
Small signal bandwidth 1	1 kHz
Small signal bandwidth 1, capacity	3.4 µF
Small signal bandwidth 2	5 kHz
Small signal bandwidth 2, capacity	660 nF
Noise (0-100 kHz), without load, RMS	150 mV
Ripple (0-100 kHz), with load, peak-to-peak	2000 mV
Noise, ripple (0-100 kHz): Load	100 nF
Number of amplifier channels	1
Sensor	E-481.00	Tolerance
Electrical properties	E-481.00	Tolerance
Output voltage	Default: 0 to 1100

Can be set: -260 to +780, -550 to +550, -780 to +260, 0 to -1100 V
Output voltage monitoring	Output voltage / 100 V
Average output power	630 W	min.
Peak output power	2000 W
Peak output power, time limit	5 ms
Input impedance	100 kΩ
Average output current	600 mA
Peak output current	2000 mA
Peak output current, time limit	5 ms
Short-circuit proof	Yes
Miscellaneous	E-481.00	Tolerance
Motor/actuator connector	LEMO EGG.0B.701.CJL1173
Connector analog control signal	BNC
Connector for temperature sensor	LEMO socket
Connector monitor output voltage	BNC
Power connection	100 to 120 V AC / 220 to 240 V AC (selectable, fuse change required)
Power entry fuse	100 V to 120 V: 2 x 4 A HT, 250 V / 220 V to 240 V: 2 x 2 A HT, 250 V
Operating temperature range	5 to 40 °C
Overall mass	8600 g