| 摘要 |
A capacitive load driving circuit includes: a phase lead compensator, advancing a phase of an output signal of a filter; a series compensator, determining an error between a driving signal and an output signal of the phase lead compensator; a stabilization compensator, performing a derivative action on an output signal of the filter; a voltage comparison unit, comparing a differential voltage between a signal output from the series compensator and a signal output from the stabilization compensator, with a voltage of a predetermined triangular waveform, and outputting a pulse width modulation signal; a voltage amplification unit, amplifying the voltage of the pulse width modulation signal output, and supplying the amplified pulse width modulation signal to the input terminal of the filter; and plural capacitive loads each connected in parallel to the capacitor. A droplet ejection apparatus includes the capacitive load driving circuit.
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