| 摘要 |
The present invention relates to a full-bridge DC-DC converter. The full-bridge DC-DC converter comprises: a primary-side circuit which performs a pulse-width modulation (PWM) phase shift (PS) switching by using a resonance inductor and a parasitic capacitor of a switching element as a resonance element; a transformer which induces a voltage of a primary side of a converter to a secondary side of the converter according to an opening and closing operation of the switching element; and a secondary-side circuit which performs a synchronous rectification on the induced voltage and converts the rectified voltage into a DC voltage. According to the present invention, a soft switching and a synchronous rectification technique are used according to a PWM PS control method to reduce loss of the primary side and the secondary side of the converter, respectively, thereby achieving high efficiency. |
