JPS63176384U

JPS63176384U -

Info

Publication number: JPS63176384U
Application number: JP17943086U
Authority: JP
Priority date: 1986-11-21
Filing date: 1986-11-21
Publication date: 1988-11-15

Description

[Brief explanation of the drawing]

第１図は本考案に係る回路の好適な実施例を示
す回路図、第２図は提案回路を示す回路図、第３
図および第４図は第１図実施例の充放電作用説明
図、第５図は制御電圧のタイミングチヤートであ
る。１０―１，１０―２……ＮＰＮトランジスタ、
２０―１，２０―２……ＰＮＰトランジスタ、２
８―１，２８―２……積層圧電体、３０―１，３
０―２……ＰＮＰトランジスタ、３２―１，３２
―２……ＮＰＮトランジスタ、３８―１，３８―
２……放電線。 FIG. 1 is a circuit diagram showing a preferred embodiment of the circuit according to the present invention, FIG. 2 is a circuit diagram showing the proposed circuit, and FIG.
4 and 4 are explanatory diagrams of the charging and discharging operation of the embodiment shown in FIG. 1, and FIG. 5 is a timing chart of the control voltage. 10-1, 10-2...NPN transistor,
20-1, 20-2...PNP transistor, 2
8-1, 28-2...Laminated piezoelectric material, 30-1, 3
0-2...PNP transistor, 32-1, 32
-2...NPN transistor, 38-1, 38-
2...Discharge line.

Claims

[Scope of Claim for Utility Model Registration] In a piezoelectric motor drive circuit that drives a piezoelectric motor in which a plurality of laminated piezoelectric bodies are arranged radially around a fixed center shaft within a stator ring around which a rotor ring is arranged, a fixed center A pair of discharge paths are formed that connect the high-potential sides of the laminated piezoelectric bodies arranged with the axis in between and to which driving voltages are applied for different periods. A piezoelectric motor drive circuit characterized in that switching elements driven in opposite directions by control signals are inserted into both discharge paths.