公开(公告)号：US08664931B2

公开(公告)日：2014-03-04

申请号：US13494999

申请日：2012-06-13

申请人： Leif E. Schneider ,  Kevin D. Thompson

发明人： Leif E. Schneider ,  Kevin D. Thompson

IPC分类号： G05F5/00 ,  G05F1/00

CPC分类号： G05F1/67

摘要： A self-optimizing energy harvester comprises a thermoelectric generator coupling to a thermal source, producing a source voltage greater than a minimum start-up voltage, where the thermoelectric generator drives a boost circuit and a feedforward circuit, delivering power to a load. A conventional boost circuit has a maximum output power only at the input voltage for which a fixed set point resistor is chosen. The feedforward circuit dynamically optimizes the boost circuit according to a dynamic set point resistance, thus increasing output power for a wide range of input voltages, relative to using a fixed reference resistor. The dynamic set point resistance is the sum of a variable resistance and a reference resistance. A sample element forms a differential voltage between the source and input voltage elements, and the variable resistance corresponds to the differential voltage. A reference resistor is chosen to establish the minimum start-up voltage.

摘要翻译： 自优化能量收集器包括耦合到热源的热电发电机，产生大于最小启动电压的源电压，其中热电发电机驱动升压电路和向前馈电路，向负载输送功率。 常规升压电路仅在选择固定设定点电阻器的输入电压时具有最大输出功率。 前馈电路根据动态设定点电阻动态优化升压电路，因此相对于使用固定参考电阻器，可以提供宽范围输入电压的输出功率。 动态设定点电阻是可变电阻和参考电阻之和。 样品元件在源极和输入电压元件之间形成差分电压，可变电阻对应于差分电压。 选择参考电阻以建立最小启动电压。