Linear LTC3588-1壓電能量收集電源方案

Linear 公司的LTC3588-1是壓電能量收集電源,集成了低噪音全波整流和高效降壓轉換器,組成完整的能量收集解決方案,最適合高輸出阻抗的能量源如壓電傳感器.輸入電壓2.7V-20V,輸出電流高達100mA,可選輸出電壓1.8V, 2.5V, 3.3V和3.6V,可用於壓電能量收集,電-機械能量收集,無線HVAC傳感器,輪胎壓裏傳感器,遙控光開關,毫微瓦降壓穩壓器.本文介紹LTC3588-1主要特性,方框圖以及多種應用電路圖,包括100mA壓電能量收集電源電路圖, 最小尺寸的1.8V低壓輸入壓電能量收集電源電路圖, 電場能量和熱電能量收集器電路圖等.

LTC3588-1: Piezoelectric Energy Harvesting Power Supply

The LTC.3588-1 integrates a low-loss full-wave bridge rectifier with a high efficiency buck converter to form a complete energy harvesting solution optimized for high output impedance energy sources such as piezoelectric transducers. An ultralow quiescent current undervoltage lockout (UVLO) mode with a wide hysteresis window allows charge to accumulate on an input capacitor until the buck converter can effi ciently transfer a portion of the stored charge to the output. In regulation, the LTC3588-1 enters a sleep state in which both input and output quiescent currents are minimal. The buck converter turns on and off as needed to maintain regulation.
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