期刊
ELECTRONICS
卷 12, 期 19, 页码 -出版社
MDPI
DOI: 10.3390/electronics12194070
关键词
fuse; power supply; piezoelectric energy; harvesting circuit
This paper introduces the piezoelectric energy harvesting technology and its advantages in energy recovery. To address the reactive power issue in the energy harvesting circuit, the adoption of the third-order valley-fill circuit as the power factor correction circuit is proposed, and its effectiveness is verified through experiments.
As advanced systems continue to advance and fuse functions expand, the demand for higher power supply requirements for fuses has increased. Consequently, researchers have turned their attention to the recovery of energy from the environment. Piezoelectric energy harvesting has gained significant popularity due to its advantageous characteristics, such as high energy density, ease of implementation, and compact size. However, the presence of various component types within the energy harvesting circuit inevitably results in the generation of reactive power, leading to a reduction in the circuit's power factor. To address this issue, this paper introduces the adoption of the third-order valley-fill circuit as the power factor correction circuit. The implementation process involves the utilization of Multisim software to simulate the double-limit zero-crossing detection circuit, pulse signal generation circuit, and power factor correction circuit. Furthermore, the aforementioned circuits were subjected to plate-level welding, followed by individual tests to evaluate the effectiveness of the double-limit zero-crossing detection, pulse signal test, and load voltage measurement. These findings unequivocally exemplify the successful accomplishment of the intended objective of augmenting the output power by the third-order valley-fill circuit.
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