发明名称 High impedance piezoelectric transducer
摘要 An improved bimorph piezoelectric transducer provides higher input impedance and allows operation at higher operating voltages. First and second piezoelectric elements have opposing electrode patterns which define a plurality of capacitors connected in series. This allows such transducers to be directly connected to high voltage audio distribution systems without the need for an impedance matching circuit.
申请公布号 US4985926(A) 申请公布日期 1991.01.15
申请号 US19880161877 申请日期 1988.02.29
申请人 MOTOROLA, INC. 发明人 FOSTER, RICHARD G.
分类号 B06B1/06;H01L41/09;H04R17/00 主分类号 B06B1/06
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