基于FPGA的压电变压器驱动控制及无线监控电路设计

Design of a piezoelectric transformer controller and a wireless monitoring circuit based on FPGA

压电变压器具有功率密度高、升压比高、稳定性好等优点,但由于其温度效应过于明显、理论与实际性能差距较大等问题受到了许多应用限制。设计制作了基于FPGA的驱动控制电路,最大化发挥了压电变压器的效率、升压比等优势,同时通过无线WiFi模块对电路的实时监测、控制,满足了对压电变压器热性能分析、摩擦损耗分析及使用寿命等方面需要长时间监控实验的需要,在特定需求下该系统可以简单升级至远程控制,为压电变压器的驱动控制研究提供了新监控思路。

Piezoelectric transformers have the advantages of high power density, high step-up ratio and good stability, etc. However, their applications are limited due to the obvious temperature effect, large gap between the theoretical and practical performances. This paper specially designed a driving controller based on FPGA, maximized the converted effi- ciency and the voltage ratio of the piezoelectric transformer. Besides, the WiFi wireless module for real-time monitoring and control circuit of the piezoelectric transformer was also developed. The system realized the thermal performance anal- ysis, friction loss analysis and long lifespan via the requirements of the real-time monitoring, the demand can be remotely controlled, which provides a new approach for research and monitoring components.