System and method for efficiently boosting drive capability for high-voltage linear power amplification

摘要

A system for efficiently boosting drive capability for high-voltage linear power amplification to supply transducers in a print head is provided. A linear power amplifier to drive the transducers in the print head includes a charge pump capacitor to boost the output voltage of the amplifier above the supply rail voltage. The amplifier can provide both positive and negative output pulses to drive the transducers. A distribution switch is used to distribute the output pulses among multiple transducers and a biasing circuit provides proper sequencing and timing signals to generate smooth output pulses. A method for driving a plurality of transducers in a print head using a charge pump capacitor is also provided.