| 摘要 |
PROBLEM TO BE SOLVED: To improve, in a power supply device using a vibration power generation element for generating power using external vibration, efficiency of vibration power generation using the external vibration and increase electric energy to a power supply target as much as possible.SOLUTION: There is provided the power supply device that outputs, through a control unit, generated power from a power generation unit to a power supply target. The power generation unit includes a plurality of DC power generation units, each of which is composed of at least a combination of a vibration power generation element for performing vibration power generation using external vibration from the outside of the power supply device and a rectification circuit for rectifying output of the vibration power generation element. The plurality of DC power generation units are connected in parallel to the control unit, and in each of the DC power generation units, unit output power having passed through the rectification circuit is output to the control unit in parallel.SELECTED DRAWING: Figure 4 |
