PULSE CODER FOR RELUCTANCE MOTOR

摘要

PURPOSE:To reduce the number of transmission lines of rotor position data and an exciting control signal for energizing coils by means of a pulse coder for reluctance motor. CONSTITUTION:An exciting phase code controlling the energization phase of each phase coil for position codes and motors is formed on a cord panel 1 to be mounted on a rotor shaft 2 of the reluctance motor. Each code is detected by a light source 3 and a photodetector element 4 and waveform-shaped by a waveform generation circuit 5. A position signal detects the position by counting with a counter 6. An exciting control signal obtained by the exciting phase code is latched by a latch circuit 7, converted into the serial data by a parallel/serial converter 8. A sender circuit 9 sends a position signal and an exciting control signal by means of two signal lines.