| 摘要 |
<p>A stacked type piezo-electric element device in accordance with the present invention includes stacked type piezo-electric elements constructed by stacking a plurality of piezo-electric elements with electrodes on both sides, a plurality of voltage impression circuits prepared corresponding to respective piezo-electric elements for supplying a voltage to each electrode of the piezo-electric elements, a power source which connects the voltage impression circuits in parallel, and circuit breaker elements which, when the current that flows in at least one of the voltage impression circuits exceeds a predetermined value, interrupt the current flowing in the voltage impression circuit that exceeds the predetermined value.</p> |
