Title :
The overload-protection characteristics of the current-mode DC-to-DC converter: analysis and improvement
Author :
Sato, Terukazu ; Nakano, Tadao ; Harada, Koosuke
Author_Institution :
Oita Univ., Japan
Abstract :
A technique for overload protection of current-mode DC-to-DC converters is proposed in which output voltage is fed back to control the current. The method, called current limiting by voltage feedback (CLVF), solves two serious problems: inarbitrarity of drooping curve and short-circuit-current runaway. The state and dynamic characteristics of CLVF are analyzed using the state-space-averaging method. The analysis is confirmed by experiments.<>
Keywords :
feedback; overcurrent protection; power convertors; current limiting by voltage feedback; current-mode DC-to-DC converter; drooping curve; dynamic characteristics; overload-protection characteristics; power convertor; short-circuit-current runaway; state-space-averaging method; static characteristics; Clocks; DC-DC power converters; Delay effects; Equations; Frequency conversion; Protection; Switching circuits; Switching converters; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE
Conference_Location :
Kyoto, Japan
DOI :
10.1109/PESC.1988.18214
