兩級式壓電陶瓷驅動電路之設計研究

Two-Stage Driver for Piezoelectric Actuator

賴俊安(Jun-An Lai)

指導教授 ： 丁鏞

中原大學/工學院/機械工程研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400735

摘要

本研究欲設計一具有高低頻操作頻率之壓電致動器驅動電路，驅動電路之前級為昇壓式直流轉換器，搭配後級之全橋換流器，架構出一兩級式驅動電路。於低頻操作時後級全橋換流器採用正弦脈寬調變換流切換控制策略，將前級所提供之高壓直流電壓準位，轉換為高壓低頻交流近似弦波之驅動訊號；於高頻操作時後級全橋換流器採用可程式脈寬調變換流切換控制策略，配合諧振電路產生高壓高頻交流弦波之驅動訊號。另使用單晶片微處理器做為壓電陶瓷驅動電路之中樞控制核心，以數位化方式，設計可調式操作頻率，以滿足不同操作頻率的壓電致動器之驅動需求。

關鍵字

正弦脈寬調變 ； 全橋換流器 ； 昇壓式直流轉換器

並列摘要

A driver for piezoelectric actuator for high and low range of frequency application is investigated. The first stage of the driver is boost DC converter associated with the full-bridge circuitry in the second stage. In low operating frequency, switching control with sinusoidal pulse width modulation (SPWM) is used in full-bridge circuitry, which converts the high voltage DC signal provided in the first stage into AC low frequency signal to drive the piezoelectric actuator. In high operating frequency, switching control with programmable pulse width modulation (PWM) is used in full-bridge circuitry in association with the high-voltage and high-frequency signal generated by the resonance circuitry. Single-chip microprocessor is used to design the programmable operating frequency with digital control method to accurately achieve the purpose.

並列關鍵字

full-bridge inverter ； boost DC converter ； SPWM

參考文獻

[13] 陳國威, “壓電陶瓷馬達之數位驅動控制電路設計,” 私立中原大學,機械工程學系, 碩士論文, 2002.

[14] 張啟原, 丁鏞, 莊錦煌, 張義峰, 黃建生, “數位式頻率可調變壓電驅動器之設計研究,” 中華民國自動控制研討會, pp. 144-149, 2003.

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