Driving Power Supply of Single-Chamber and Single-Vibrator Piezoelectric Pump

Abstract:

Aiming at driving requirements of single-chamber and single-vibrator piezoelectric pump, a driving power supply is designed. Firstly, the power supply utilizes signal generating circuit to obtain a tiny sine signal with adjustable amplitude and frequency. Then it utilizes high-voltage amplifying circuit and power amplifying circuit to gain high voltage and large current to drive the piezoelectric pump. Prototype of driving power supply is manufactured and its output performance is tested. Experimental results show that, in power supply, the driving signal output approaches sine signal in waveform, and controlling varies of piezoelectric pump (driving voltage and frequency) can be adjusted independently and continuously. Within operating frequency range of piezoelectric pump, the driving voltage is up to 170V. The driving power supply designed meets the driving requirements of the piezoelectric pump, and has advantages of small size, light weight, and low cost.

• Periodical: Applied Mechanics and Materials (Volume 442)
• Pages: 386-391
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.442.386
• Online since: October 2013
• Authors: Ye Ming Sun, Guang Ming Cheng*, Ping Zeng
• Keywords: Driving Power Supply, Piezoelectric Pump, Sine Signal, Single-Vibrator

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