Patent ID: 6204591
Filing Date: 2001-03-20
Classification: H01L,H03K

Abstract:
A piezoelectric driving circuit, comprising:a first plurality of circuits, each composed of a switching element connected in series with a resistor, each of the first plurality of circuits being connected in parallel and being inserted between a high-potential side power source and a piezoelectric element, each of the resistors of the first plurality of circuits having a different resistance for providing a different time constant in association with a capacitance of the piezoelectric element; anda second plurality of circuits, each composed of a switching element connected in series with a resistor, each of the second plurality of circuits being connected in parallel and being inserted between a low-potential side power source and the piezoelectric element, each of the resistors of the second plurality of circuits having a different resistance for providing a different time constant in association with the capacitance of the piezoelectric element.