| 摘要 |
<p>A circuit (100) supplying a DC output of a desired voltage from an input regardless of power received. In this circuit (100), a rectifier (101) conversts an alternating current (AC) input to direct current (DC) or changes a DC input to a desired polarity. A boost converter (110) receives DC current having a first voltage from the rectifier (101) and outputs DC current having at least a minimal voltage. Finally, a buck boost convertor (120) receives the DC current haaving the at least said minimal voltage and outputs DC having a desired voltage.</p> |
