A microwatt switched-capacitor voltage doubler-based voltage regulator for ultra-low power energy harvesting systems
Research output: Contribution to journal › Article › Scientific › peer-review
This paper presents an SC voltage doubler-based voltage regulator for ultra-low power energy harvesting applications. It produces a stable 1.2-V power supply, using inputs from 0.63 to 1.8 V. External compensation and an on-chip output capacitor ensure good performance even with zero load current and any load capacitance. The regulator tolerates arbitrary input ramp-ups, and is immune to blackout and brownout. A stability analysis for the regulator control loop is presented. The regulator ASIC is implemented in a 180 nm CMOS process. The measured regulator peak power and current efficiency are 63 and 49 %, respectively. The performance has been characterized with load currents from zero to (Formula presented.)A.
|Number of pages||12|
|Journal||Analog Integrated Circuits and Signal Processing|
|Publication status||Published - Aug 2016|
|MoE publication type||A1 Journal article-refereed|
- Brownout, Energy harvesting, SC voltage converter, Start-up, Ultra-low power, Voltage regulator