| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise when a power generation circuit, a control circuit, and a power supply circuit of a drive circuit of a vibration-type actuator are mounted on the same substrate. SOLUTION: A power generation circuit 101 for supplying power to a vibration-type actuator, a control circuit 102 for controlling a parameters of the vibration-type actuator, and a power supply circuit 100 for driving the power generation circuit 101 and the control circuit 102, are grouped and mounted on the same substrate as the drive circuit of the vibration-type actuator. Then, a shielding member 45 with magnetic shielding property is arranged between circuits on the substrate. |
