A fully-integrated DC/DC converter for energy harvesting applications is presented. The startup-voltage of the converter is about 140mV, the output voltage exceeds 1.5V, with a power efficiency at least 20%. The architecture for boosting such extremely low voltages is based on an ultra-low-voltage oscillator cross connected to two phase charge pump. The overall circuit does not require any external components and can be fully integrated in a standard CMOS low voltage technology. A testchip has been designed in UMC 0.18μm process.
A 150mV-1.2V Fully-Integrated DC-DC Converterfor Thermal Energy Harvesting
COLALONGO, Luigi;RICHELLI, Anna;KOVACS VAJNA, Zsolt Miklos
2012-01-01
Abstract
A fully-integrated DC/DC converter for energy harvesting applications is presented. The startup-voltage of the converter is about 140mV, the output voltage exceeds 1.5V, with a power efficiency at least 20%. The architecture for boosting such extremely low voltages is based on an ultra-low-voltage oscillator cross connected to two phase charge pump. The overall circuit does not require any external components and can be fully integrated in a standard CMOS low voltage technology. A testchip has been designed in UMC 0.18μm process.File in questo prodotto:
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