고효율, 소형화된 전원회로 설계를 위한 LLC 공진회로 제어 IC 설계

In this paper, a LLC Resonant controller IC for wide input range and high voltage using 0.35 um CMOS 2P3M process is presented. The clock generator is designed to cover the wide frequency range. The UVLO and Brown out circuit are integrated to protect the internal and external circuits. And, the output driver is included to drive the high input capacitance of the IGBT with the high current. The output frequency range of the clock generator is 50 ㎑ to 500 ㎑. The die area of the fabricated LLC resonant controller is 1.4 ㎜ x 1.4 ㎜.