Title :
Step-up converter combining KY and buck-boost converters
Author :
Hwu, K.I. ; Huang, K.W. ; Tu, W.C.
Author_Institution :
Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan
Abstract :
A step-up converter is presented, which combines the KY converter and the traditional buck-boost converter. By doing so, the limitations on voltage conversion ratio of the KY converter, up to two, can be improved. Aside from this, such a converter possesses a non-pulsating output current, thereby not only decreasing current stress on the output capacitor but also reducing output voltage ripple.
Keywords :
DC-DC power convertors; voltage multipliers; KY converter; buck-boost converter; capacitor; current stress; non-pulsating output current; output voltage ripple; step-up converter; voltage conversion ratio;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0392
