| 摘要 |
<p>A direct current voltage converter includes a substantially static direct current voltage source (210), an inductor (220); a current-control switch (215) coupled with, and between, the voltage source (210) and the inductor, (220) a step-up switch (230) coupled with the inductor (220), and a current sense device (235) coupled in series with the step-up switch (230) and electrical ground. The converter also includes a capacitor (260) for storing converted voltage that is coupled with, and between, electrical ground, and the inductor (220) and the step-up switch (230) through a device (240) for controlling current flow direction. The converter further includes a first control circuit (219), which opens and closes the current-control switch based, at least in part, on an electrical current conducted through the current sense device (235), and a second control circuit (250), which opens and closes the step-up switch (230) based, on a voltage potential across the electrical load (270).</p> |
