Fully integrated boost converter for thermoelectric energy harvesting in 180 nm CMOS
Fully integrated boost converter for thermoelectric energy harvesting in 180 nm CMOS
复制标题
用于 180 nm CMOS 中热电能量收集的完全集成升压转换器
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
W. Noije
中科院分区：
文献类型：
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作者：
H. Hernández;W. Noije
提出了一种从低压热电发电机中提取能量的全集成升压变换器。该转换器采用22 nH集成金属轨道电感，无需外部元件，可在300 mV输入电压下提供1.1 V稳压输出电压，正常工作时的效率为39%（实验确定）。在启动模式下，所提出的架构利用Dickson电荷泵对输出电容进行预充电，直到控制电路可以工作。该电路在0.18 μ mCMOS工艺下进行了仿真和制作。在测试样品上进行实验测试，并且测量转换器效率与输出功率的关系，并且转换器效率还作为从0.3 V到0.8 V的范围内的输入电压的函数。这些结果表明，升压转换器充分地工作。核心占据（无焊盘）约0.7 mm × 0.9 mm的硅面积。
A full integrated boost converter that allows energy extraction from low voltage thermoelectric generators is presented in this paper. The converter uses a 22 nH integrated metal-track inductor without external components and provides a 1.1 V regulated output voltage from 300 mV of input voltage and 39 % of efficiency under normal operation, as experimentally determined. In start-up mode, the proposed architecture utilized a Dickson charge-pump to pre-charge the output capacitor until the control circuit could operate. The presented circuit was simulated and fabricated in 0.18 μm CMOS technology. Experimental tests were performed on test samples, and the converter efficiency is measured versus output power and also as a function of the input voltage in the range from 0.3 V up to 0.8 V. These results showed that the boost converter works adequately. The core occupies (without pads) a silicon area of about 0.7 mm × 0.9 mm.