| 摘要 |
PROBLEM TO BE SOLVED: To suppress an electric power consumed in a transistor of a current amplification circuit, and to reduce heating. SOLUTION: The liquid jetting apparatus includes a piezoelectric element which operates by charging or discharging and jets a liquid, and an inductor which makes a current discharged from the piezoelectric element. An energy is stored by preliminarily flowing the current into the inductor before the current is discharged from the piezoelectric element. The current is discharged to the inductor when the current is discharged from the piezoelectric element. COPYRIGHT: (C)2011,JPO&INPIT
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