| 主权项 |
1. A DC to DC convertor, comprising:
a switching circuit comprising
a first transistor having a source coupled to a first voltage supply node, a drain coupled to a first node, and a gate configured to receive a first control signal,a second transistor including a source coupled to a second voltage supply node, a drain coupled to the first node, and a gate configured to receive a second control signal,an inductor having a first terminal coupled to the first and second transistors at the first node and a second terminal coupled to a plurality of output loads at a second node, the second node being coupled to each of the plurality of output loads through a respective switch, the second node being different from the first node; and a controller configured to
monitor the plurality of output loads,for each of the output loads, estimate a current level to flow through the inductor based on the monitoring,output the first control signal to the gate of the first transistor to selectively couple the first node to the first voltage supply node,output the second control signal to the gate of the second transistor to selectively couple the first node to the second voltage supply node, andselectively couple the inductor to one or more output loads by using the estimated current levels and asserting one or more switches corresponding to the one or more output loads with the first node being concurrently coupled to either the first voltage supply node or the second voltage supply node to minimize a number of times the switching circuit is switched during a charging period for charging the one or more output loads coupled to the switching circuit, wherein the controller is configured to skip one or more output loads during the charging period when sufficient stored energy is available to drive the one or more output loads. |
