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LinearLTC35881压电能量收集电源方案VIP免费

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Linear LTC3588-1 压电能量收集电源方案 关键字:电源管理,能量收集器,DC/DC 转换器 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. Four output voltages, 1.8V, 2.5V, 3.3V and 3.6V, are pin selectable with up to 100mA of continuous output current; however, the output capacitor may be sized to service a higher output current burst. An input protective shunt set at 20V enables greater energy storage for a given amount of input capacitance. LTC3588-1 主要特性: 950nA Input Quiescent Current (Output in Regulation – No Load) 450nA Input Quiescent Current in UVLO 2.7V to 20V Input Operating Range Integrated Low-Loss Full-Wave Bridge Rectifier Up to 100mA ...

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LinearLTC35881压电能量收集电源方案

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