Ultra-low power series pass element voltage regulator for RF-DC energy harvesting

Author

Park, Myunghwan ; Choi, Kwangsik ; Peckerar, Martin

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Maryland, College Park, MD, USA

fYear

2009

fDate

9-11 Dec. 2009

Firstpage

1

Lastpage

2

Abstract

In conclusion, a novel ultra-low power distributing system for RuOx electrochemical cell is developed implementing a switched capacitor DC-DC converter and a single series pass element voltage regulator. With one single depletion mode MOSFET, battery output voltage is regulated to have long lifetime of the cell itself. Measurements of the circuits show that for the active mode of ad-hoc sensors, a charged battery discharges its charges through a switch capacitor DC-DC converters and voltage regulator. Therefore, we can observe a regulated output voltage at the end of our power distribution system.

Keywords

DC-DC power convertors; MOSFET; low-power electronics; voltage regulators; MOSFET; RF-DC energy harvesting; RuOx electrochemical cell; battery output voltage; switched capacitor DC-DC converter; ultra-low power distributing system; ultra-low power series voltage regulator; Battery charge measurement; Capacitive sensors; Capacitors; Current measurement; DC-DC power converters; MOSFET circuits; Regulators; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Device Research Symposium, 2009. ISDRS '09. International

Conference_Location

College Park, MD

Print_ISBN

978-1-4244-6030-4

Electronic_ISBN

978-1-4244-6031-1

Type

conf

DOI

10.1109/ISDRS.2009.5378128

Filename

5378128