Title :
A new simple current-compensation circuit system for POL
Author :
Ito, Koichi ; Ishizuka, Yoichi ; Matsuo, Hirofumi ; Ueno, Masahiro
Author_Institution :
Fac. of Eng., Nagasaki Univ., Japan
Abstract :
A new current-compensation circuit system for POLs is introduced. The proposed circuit employs MOSFETs, resistors and capacitors without any discrete magnetic devices. The system is activated only during transient responses and its total power loss is very small. Simulation results revealed that the output POL voltage is maintained within 5 % of 1.5 V during a load change between 1 A and 50 A. Furthermore, experimental results indicated that the descent width of the output POL voltage is improved by approximately 85 mV of 1.5 V during a load change from 1 A to 10 A.
Keywords :
DC-DC power convertors; capacitors; compensation; power MOSFET; resistors; transient response; 1 to 50 A; 1.5 V; MOSFET; POL; capacitor; current-compensation circuit system; resistor; transient response; Application specific integrated circuits; Capacitors; Circuit simulation; MOSFETs; Magnetic circuits; Magnetic devices; Pulse width modulation converters; Resistors; Systems engineering and theory; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2005. APEC 2005. Twentieth Annual IEEE
Print_ISBN :
0-7803-8975-1
DOI :
10.1109/APEC.2005.1453221
