| 摘要 |
PROBLEM TO BE SOLVED: To perform charging with high efficiency without considerably changing basic configuration concerning a power supply circuit which generates DC power by performing voltage transformation and has a drooping function. SOLUTION: Concerning the power supply circuit provided with a voltage transforming means 12 for generating the DC power of desired voltage by performing the processing of voltage transformation to input power supplied from the outside and for supplying that DC power to a load 11 and a voltage characteristic setting means 13 for monitoring a load current, providing the deviation of load current corresponding to a predetermined maximum load current and setting the voltage characteristic of voltage transforming means 12 to drooping characteristics to decrease a load voltage corresponding to that deviation when the deviation is positive, a voltage characteristic changing means 14 is provided for monitoring the load voltage and subtracting a value, which is applied by a decrease function for the deviation of load voltage corresponding to a desired voltage, from the deviation provided by the voltage characteristic setting means 13. |
