| 摘要 |
A device for measuring position and velocity using resolver is provided to precisely estimate position and velocity of a rotor by removing a noise of a signal by a resolver, and to reduce burden in operation of a digital controller by transmitting position information of the rotor with a differential signal. A device for measuring position and velocity using resolver comprises a resolver(100), an analog circuit(300), and a digital control unit(200). The resolver outputs AC signals of two phases changed according to a rotation angle. The analog circuit samples the AC signals outputted in the resolver, and outputs differential signals of two phases. The digital control unit calculates position and velocity of the rotor using the differential signals of two phases outputted in the analog circuit. The analog circuit comprises an oscillator circuit part and a sampling circuit part. The digital control unit comprises an A/D conversion part, a position calculation part, and an observation part. |
