Paper Info
Title
A 120/230 Vrms-to-3.3V micro power supply with a fully integrated 17V SC DCDC converter.
Abstract
The power supply is one of the major challenges for applications like internet of things IoTs and smart home. The maintenance issue of batteries and the limited power level of energy harvesting is addressed by the integrated micro power supply presented in this paper. Connected to the 120/230 Vrms mains, which is one of the most reliable energy sources and anywhere indoor available, it provides a 3.3V DC output voltage. The micro power supply consists of a fully integrated ACDC and DCDC converter with one external low voltage SMD buffer capacitor. The micro power supply is fabricated in a low cost 0.35 mu m 700V CMOS technology and covers a die size of 7.7mm(2). The use of only one external low voltage SMD capacitor, results in an extremely compact form factor. The ACDC is a direct coupled, full wave rectifier with a subsequent bipolar shunt regulator, which provides an output voltage around 17V. The DCDC stage is a fully integrated 4:1 SC DCDC converter with an input voltage as high as 17V and a peak efficiency of 45 %. The power supply achieves an overall output power of 3mW, resulting in a power density of 390 mu W/mm(2). This exceeds prior art by a factor of 11.
Year
Venue
Field
2016
Proceedings of the European Solid-State Circuits Conference
Boost converter,AC adapter,Computer science,Power factor,Electronic engineering,Control engineering,Capacitive power supply,Power supply rejection ratio,Electrical engineering,Voltage regulator,Switched-mode power supply,Switched-mode power supply applications
DocType
ISSN
Citations 
Conference
1930-8833
0
PageRank 
References 
Authors
0.34
3
3
Name
Order
Citations
PageRank
Daniel Lutz151.26
Peter Renz261.69
Bernhard Wicht3199.30