| 摘要 |
PURPOSE:To detect the speed of revolution, by carrying out a frequency-voltage conversion of an output of a resolver. CONSTITUTION:A two-phase exciting signal is given from a two-phase sine wave generator 2 to two phase stators windings Walpha, Wbeta of a resolver 1. An output signal of the resolver 1 is shaped 3 to a square wave and is inputted into the second monomultiple vibrator 11 and the second monomutiple vibrator 12 through an invertor 9 and the outputs of the mono stable multivibrators 11, 12 are added and are converted into direct current voltage by a low-pass filter 14. A bias direct current voltage is set so that the output voltage of the filter 14 becomes zero when the number of revolutions of the resolver 1 is zero. |
