Patent ID: 8897467

Claim:
An electronic amplifier for driving a capacitive load having first and second terminals, the electronic amplifier comprising: first and second differential input terminals configured to receive an input signal; first and second differential output terminals configured to be respectively coupled to the first and second terminals of the capacitive load and to provide a differential output signal to the first and second terminals of the capacitive load; a first operational device having first and second differential inputs coupled to said first and second differential input terminals, respectively, and an output coupled to said first differential output terminal; and a second operational device having first and second differential inputs coupled to said first and second differential input terminals, respectively, and an output coupled to said second differential output terminal; said first and second operational devices being configured to set said first and second differential output terminals and the first and second terminals of the capacitive load at a reference voltage to discharge the first and second terminals of the capacitive load during periods where an amplitude of the differential output signal decreases.