| 摘要 |
A controller and control method for an electronic switch, an electronic switch and an electronic device.The controller includes: a constant voltage power supply (30), a processor (50) and a drive circuit (10). The processor (50) is connected between the constant voltage power supply (30) and a measurement apparatus, and used for receiving operational parameters of the power supply, a load and an electronic switch measured by the measurement apparatus, reading duty ratio parameters matching the operational parameters, calculating using the duty ratio parameters and operational parameters to obtain a new duty ratio, and after adjusting the current control signal into a pulse width modulation signal with the duty ratio as the new duty ratio, sending the pulse width modulation signal to the drive circuit (10). The drive circuit (10) is connected between the constant voltage power supply (30) and the load and used for controlling the rotation speed of a motor (12) in the load.The electronic switch has the characteristics of reduced volume and long low-speed travel, so that a user can use an electrical device to be in operation at an accurate operating point. |
