Title :
Micro fuel cell power management circuit design for portable devices
Author :
Tsai, Chia-Chun ; Liu, Tsung-Ming ; Lee, Trong-Yen
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nanhua Univ., Chiayi, Taiwan
Abstract :
In this paper, we propose a micro fuel cell power management circuit design for portable devices. The circuit combines two power sources, fuel cell for our main power supply and lithium-ion battery for backup power, and the whole power system is well managed. The whole circuit design has been approved by HSPICE with TSMC 0.35μm 2P4M 5V CMOS process. Simulation results show that the circuit can provide the output current of 149mA-232mA. The output voltage is 3.6V-3.64V when input voltage is located in range of 3.87V-5V. The total number of transistors is 83 and the size of chip is 1.58mm×1.25mm. The power consumption is 1.51W when load is 20pF.
Keywords :
CMOS integrated circuits; battery management systems; fuel cells; power electronics; secondary cells; CMOS process; HSPICE; backup power supply; current 149 mA to 232 mA; lithium-ion battery; main power supply; microfuel cell power management circuit design; portable device; power 1.51 W; voltage 3.6 V to 3.64 V; voltage 3.87 V to 5 V; Batteries; Fuel cells; Lithium; Regulators; Resistors; Voltage control; LDO; fuel cell; portable devices; power management;
Conference_Titel :
Fuzzy Systems and Knowledge Discovery (FSKD), 2012 9th International Conference on
Conference_Location :
Sichuan
Print_ISBN :
978-1-4673-0025-4
DOI :
10.1109/FSKD.2012.6234367
