| 摘要 |
<p>According to an exemplary embodiment, an integrated start-up circuit for a power supply includes a converter, which in one embodiment can be a buck converter. In one embodiment, the buck converter includes a gate driver configured to drive a power switch, where the power switch is coupled across a DC bus node and a switching node of the buck converter. The power switch is configured to provide a start-up voltage to the buck converter from the DC bus node during start-up of the buck converter. In one embodiment, the buck converter includes a bootstrap switch coupled across the gate driver and a Vcc node and a Schottky diode coupled across the bootstrap switch and the switching node, where the start-up voltage is provided at the Vcc node through the bootstrap switch.</p> |
