STEPPING MOTOR FAILURE DETECTOR Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: stepping motor failure detector has control pulse shaper 1, phase switcher 2, stepping motor 3, position detector 4, OR gate 5, register 6, code comparator 7, four AND gates 8,13,14,15, NOR gate 9, one-shot multivibrator 10, two delay lines 11,12, motor ON-bus, clock bus, reversing bus, initial state bus, output buses 16,17,18. Device enables follow of each step and location of failure. EFFECT: simplified design, enlarged functional capabilities. 1 dwg