| Title | An Input-Powered Active AC/DC Converter with Zero Standby Power for Energy Harvesting Applications |
| Publication Type | Conference Paper |
| Year of Publication | 2010 |
| Authors | Rao, Y., and D. P. Arnold |
| Conference Name | IEEE Energy Conversion Congress and Exposition (ECCE) |
| Date Published | 09/2010 |
| Conference Location | Atlanta, GA |
| Keywords | AC/DC converter, active diode, comparator, energy harvesting, input-powered, rectifier |
| Abstract | This paper presents an input-powered energy-harvesting interface circuit that eliminates standby power consumption by automatically shutting down when the ac input voltage amplitude is too low for successful energy reclamation. The interface comprises an input-powered ac/dc converter and an input-powered dc/dc boost converter that are fabricated in ON Semi 3M-2P 0.5 μm CMOS process. The interface circuit starts up when the ac input amplitude exceeds 1 V and supplies a regulated dc output up to 3 V. When the input amplitude drops below 600 mV, the interface automatically enters standby mode and consumes no power. The system achieves a maximum efficiency of 60% with 1.5 V ac input amplitude and 3 V regulated dc output, delivering 3.9 mW of output power. The interface also functions properly in tests with an electrodynamic (magnetic) vibrational energy harvester. |
| DOI | 10.1109/ECCE.2010.5618445 |
