Linear 公司的LTC3588-1是压电能量收集电源,集成了低噪音全波整流和高效降压转换器,组成完整的能量收集解决方案,最适合高输出阻抗的能量源如压电传感器.输入电压2.7V-20V,输出电流高达100mA,可选输出电压1.8V, 2.5V, 3.3V和3.6V,可用于压电能量收集,电-机械能量收集,无线HVAC传感器,轮胎压里传感器,遥控光开关,毫微瓦降压稳压器.本文介绍LTC3588-1主要特性,方框图以及多种应用电路图,包括100mA压电能量收集电源电路图, 最小尺寸的1.8V低压输入压电能量收集电源电路图, 电场能量和热电能量收集器电路图等.
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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