通过引入开关延迟提高非线性压电能量收集接口在非谐振状态下的功率输出

This paper presents two interface circuit designs that improve the piezoelectric energy harvesting performance at off-resonance. Complex impedance matching at different frequencies is achieved by introducing delay into the conventional switching methods. The proposed techniques can also be used in other applications, such as electromagnetic energy harvesting. The system is analyzed using equivalen...