Nowadays, most of the driving powers of PZT ( lead zirconate titanate ) pumps are large, less efficient, and high power consumption.This paper presents a new type of a driving power supply composed of the step-up inverter for a PZT liquid pump.In order to provide a square wave of ±40V and 50 Hz for a PZT liquid pump, this design used the MC34063 and NE555 integrated circuits to respectively fabricate a DC-DC boost circuit as well as a full-bridge inverter circuit.The performance of the driving power supply is verified by the theoretical statement and practical test.Besides, the liquid pump is composed of a PZT, elastomer pump valve, and PET ( Polyethylene terephthalate ) pump body, while the power, flow rate, body size and weight of the pump are 1 W, 800 ± 5% ml min -1 , 50 × 50 × 10 mm., 50 gw, respectively.Furthermore, the PZT liquid pump is suitable for various fluids such as water, soda, alcohol, etc.
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Liu et al. (2019) studied this question.
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