Warsash Scientific offer the new E-617 high-power amplifier from Physik Instrumente (PI). A patented technology reduces the power loss and minimises heating of the piezo actuators.
This is done by combining a PWM (pulse-width-modulation)-switching amplifier with energy recovery technique. The advantages of this technology can be seen in high-dynamic (required by fast scanners, valve and shutter operation), 24/7 operation, especially with the huge capacitive load of a large actuator or a serial combination of several piezos.
The output voltage from -30 to +135 V is suited for operation of multilayer piezo ceramic actuators. The output power of 100 W is much higher compared to common linear amplifiers.
The E-617 from Warsash Scientific is available in three versions: as OEM electronics, for top-hat-rail mounting and for the modular E-500 controller system. Here, the amplifier can be combined with several servo controller and digital interface modules according to the requirements of the application and the piezo positioning system.