E-480 High Power HVPZT Piezo Amplifier/Controller With Energy Recovery
The Latest Information on Piezo Drivers and Controllers is Available Here
The E-480 High Power Amplifier/ Controller is specifically designed to drive high capacitance Piezo actuators. E-480 is based on a novel design employing energy recovery technology and PWM (Pulse Width Modulation). Instead of dissipating the reactive power at the heat sinks, only the active power used by the piezo actuator has to be delivered. During discharge of the actuator, the energy not used is returned and reused for the supply of the amplifier. E-480 can output and sink a peak current of 2000 mA in a voltage range of 0 to -1000 V (depends on connector configuration) and features a temperature sensor input and controller circuit to shut down the amplifier if the Piezo exceeds a maximum temperature threshold.
- 2000 W Peak Power
- Output Voltage 0 to -1000 V & Bipolar
- Optional Position Servo Control Modules
- Optional Display and RS-232 & IEEE 488 Interface Module
Because of the high output current, E-480 can not be used to operate standard Piezo translators. It is equipped with a special 8-pin connector. One of the pins is connected to the amplifier output (forward-voltage, variable between -500 to 500 V) the other pins are connected to fixed voltages (-500, -250, 0, 250, 500). This desing allows bridge operation of two Piezo actuators.
E-480.00 allows installation of the following upgrade options for enhanced versatility:
Sensor & Servo Controller Modules for Closed Loop Piezo Operation (click here)
E-509.C1 Piezo Sensor/Controller Module, Capacitive Sensor
E-509.L1 Piezo Sensor/Controller Module, LVDT Sensor
E-509.S1 Piezo Sensor/Controller Module, Strain Gage Sensor
Voltage & Position Display Module (click here)
E-515.01 Display Module for Piezo Voltage and Displacement
Computer Interface and Display Module (click here)
E-515.i1 16 bit DAC Interface/Display Module, IEEE 488/RS-232
All standard versions can be operated in two ways.
The output voltage can be set by a 10-turn, DC offset potentiometer.
- Manual operation
Output voltage is controlled by an analog signal applied to the BNC input ranging from 0 to 10 Volts. Multiplying by the gain factor of -100, an output voltage range of 0 to -1000 Volts results. The DC offset potentiometer allows for a continuous variation of the input voltage range between 0 V to +10 V and -10 V to 0 V (click here).
- External operation
Versions with the E-509 Sensor & Servo Controller Module upgrade allow closed loop operation in two ways:
Displacement of the PZTs can be set by a 10-turn, DC offset potentiometer in the range of zero to nominal displacement.
- Manual operation
Displacement of the Piezo is controlled by an analog signal in the range of 0 to +10 V, applied to the BNC input. The controller is calibrated in such a way that 10 V corresponds with maximum nominal displacement and 0 V corresponds with 0 displacement. The DC offset potentiometer can be used to add an offset voltage of 0 to 10 V to the input signal.
- External operation
