| 主权项 |
1. A single-inductor multi-output (SIMO) conversion device for enlarging load range coupled to an input voltage terminal which has a direct-current (DC) voltage source and a grounding terminal to send out a DC current, and said SIMO conversion device sends out a plurality of output voltages to a plurality of loads respectively, and said SIMO conversion device comprises:
a power stage comprising:
a first switch coupled to said DC voltage source to receive said DC current;a second switch coupled between said first switch and said grounding terminal to receive said DC current, and said first switch, said second switch and said DC voltage source constitute an electric loop;an inductor coupled between said first switch and said second switch, and said DC voltage source sends out said DC current to said inductor selectively by said first switch or said second switch, whereby said inductor sends out an immediate current, or whereby said second switch discharges an inductor current to said grounding terminal; anda plurality of control output circuits each having a third switch, and each said third switch connects with said inductor in series to receive said immediate current, and said control output circuit sends out said output voltage selectively by said third switch and obtains a feedback voltage signal from corresponding said load according to said immediate current; and a control stage circuit coupled to said power stage to receive said feedback voltage signals, sending out a plurality of control signals according to a reference voltage, respectively converting said control signals into a plurality of order control signals according to a duty cycle algorithm, and selectively controlling an order of adjusting energy of said output voltages by said order control signals. |
