IET Power Electronics, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 2, 2024
Abstract This paper presents a novel high‐performance impact‐optimized interface system for an impact‐driven piezoelectric energy harvester (PEH) which utilizes two independent parallel harvesting plans, that is, low‐efficiency self‐powered passive path and high‐efficiency active maximum power point tracking (MPPT)‐based path, different situations based on the characteristics of input excitation stored content are evaluated by mode detection unit. It uses synchronous electrical charge extraction‐based circuit as primary extraction strategy. Thus, proposed structure is self‐sustained with cold start capability. When determined prerequisites met, switches to secondary strategy, MPPT‐based in during sensing phase, PEH sensed without disconnecting it from setting bidirectional DC/DC converter performs fully transfer, increasing efficiency. The designed simulated using standard 180 nm complementary metal‐oxide semiconductor (CMOS) technology. Post‐layout simulation results show when around 50 µJ, FoM MOPIR , periodic efficiency, shock MPPT effectiveness 505%, 65%, 80%, 70%, 56%, respectively.
Language: Английский