| 摘要 |
A charging control device using wireless power supply presents a risk that a cycle for sampling a current value/voltage value of a secondary side is lengthened and a measurement value of a controlled object does not converge on a target value. A charging control device (10) includes a chopper circuit (12), a primary side coil (15), a primary side inverter circuit (20), and a control unit (30). A charged device (100) includes a secondary side coil (60), and a secondary side rectifier circuit (40) that is configured to be connectable to a storage cell (53). The control unit (30) samples a secondary side signal at a second cycle, samples a primary side signal at a first cycle shorter than the second cycle, estimates the secondary side signal at a timing of the primary side signal sampled this time, based on the secondary side signal, the primary side signal obtained when the secondary side signal is sampled, and the primary side signal sampled this time, and performs feedback control of a control signal so that a predetermined signal of the secondary side rectifier circuit (40) becomes constant. |
