The power management unit supplies first power that is continuous power to the second sensor when the power switch is on, supplies second power that is intermittent power having a voltage lower than the first power to the second sensor when the power switch is off, and outputs rotation number information representing a rotation number of the motor rotation shaft based on the second sensor signal. The power management unit includes a comparator that operates using the second power as the power source when the power switch is off and compare the second sensor signal and the reference voltage, and a counter that detects the rotation number of the motor rotation shaft by counting the output of the comparators.
ROTATION ANGLE DETECTION DEVICE, ELECTRIC POWER STEERING DEVICE AND METHOD OF CONTROLLING ELECTRIC POWER STEERING DEVICE
2022-02-10
Patent
Electronic Resource
English
European Patent Office | 2022
|European Patent Office | 2023
|European Patent Office | 2022
|European Patent Office | 2022
|European Patent Office | 2022
|