Patent Number: 8,717,784

Title: Control circuit of LLC resonant converter and LLC resonant converter using the same

Abstract: The present invention provides a control circuit of an LLC resonant converter including a minimum switching frequency variable circuit of varying a minimum switching frequency corresponding to an AC input voltage of the LLC resonant converter; and a first pulse signal generating unit and a second pulse signal generating unit to generate a first pulse signal and a second pulse signal based on a switching frequency limited by the minimum switching frequency variable circuit.

Inventors: Park; Sang Gab (Suwon-si, KR), Park; Nam Jin (Suwon-si, KR), Lee; Han Hee (Suwon-si, KR), An; Hyo Joong (Suwon-si, KR), Park; Gyu Min (Suwon-si, KR), Choi; Heung Gyoon (Suwon-si, KR)

Assignee: Samsung Electro-Mechanics Co., Ltd.

International Classification: H02M 3/335 (20060101)

Expiration Date: 5/06/12018