Title :
Overcurrent limiting characteristics of the DC-DC converter with a new digital current-injected control circuit
Author :
Matsuo, Hirofumi ; Kurokawa, Fujio ; Asano, Mutsuyoshi
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Nagasaki Univ., Japan
fDate :
7/1/1998 12:00:00 AM
Abstract :
In the conventional digitally controlled DC-DC power converter with current-injected control, the overcurrent cannot be suppressed because of the intrinsic characteristics of the voltage-controlled oscillator (VCO) as an analog-to-digital signal converter. This paper presents a new digital current-injected control circuit to realize the overcurrent limiting characteristics and the design-oriented analysis of the overcurrent limiting characteristics of the proposed digitally controlled DC-DC power converter
Keywords :
DC-DC power convertors; control system analysis; digital control; electric current control; overcurrent protection; power engineering computing; DC-DC power converter; analog-to-digital signal converter; control performance; control simulation; design-oriented analysis; digital current-injected control circuit; overcurrent limiting characteristics; overcurrent suppression; voltage-controlled oscillator; Analog-digital conversion; Circuits; DC-DC power converters; Digital control; Digital-to-frequency converters; Frequency conversion; Power system reliability; Switches; Voltage control; Voltage-controlled oscillators;
Journal_Title :
Power Electronics, IEEE Transactions on
