| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an angle detector for detecting an angle of a resolver, that can stably detect an angle with high accuracy at all times.SOLUTION: An angle detector includes: two AD converters 103 and 104 for performing digital conversion of two resolver output signals at their respective predetermined sampling timings; a signal generation unit 11 for generating an excitation signal and a sampling signal for the sampling timings; a timing adjustment unit 102 for adjusting timings of the signals generated by the signal generation unit 11; an RD conversion unit 105 for calculating an angle of a resolver; and a vector length calculation unit 106 for calculating a vector length from output values of both of the AD converters 103 and 104. The timing adjustment unit 102 adjusts the timings so that the vector length becomes an extreme value.</p> |
