| 摘要 |
PROBLEM TO BE SOLVED: To provide a resolver signal processing device capable of detecting disconnection by a simple configuration without being affected by a floating capacity. SOLUTION: An input circuit 11 has input impedance adjusted for a first output coil L11 so that the value of a first output signal is set to a central value at predetermined timing when disconnection from the first output coil L11 occurs. An input circuit 12 has input impedance adjusted for a second output coil L12 so that the value of a second output signal is set to a central value at predetermined timing when disconnection from the second output coil L12 occurs. That is, even when there is a floating capacity, the output signal which is AC at normal time is set to the central value at the predetermined timing when the disconnection occurs. By executing determination based on the values of the first output signal and the second output signal at the predetermined timing, disconnection is surely detected by the simple configuration without being affected by the floating capacity. COPYRIGHT: (C)2013,JPO&INPIT |
