Arrangements for controlling dynamo-electric motors rotating step by step

Child Classifications

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• H02P 8/005 CPC only CPC only
• H02P 8/02 specially adapted for single-phase or bi-pole stepper motors, e.g. watch-motors, clock-motors since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/04 Arrangements for starting since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/12 Control or stabilisation of current since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/14 Arrangements for controlling speed or speed and torque (H02P8/12, H02P8/22 take precedence) since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/22 Control of step size; Intermediate stepping, e.g. microstepping since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/24 Arrangements for stopping (H02P8/32 takes precedence) since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/32 Reducing overshoot or oscillation, e.g. damping since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/34 Monitoring operation (H02P8/36 takes precedence) since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/36 Protection against faults, e.g. against overheating or step-out; Indicating faults since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/40 Special adaptations for controlling two or more stepping motors since 1995 IPC+CPC Available in IPC and CPC
• H02P 8/42 characterised by non-stepper motors being operated step by step since 1995 IPC+CPC Available in IPC and CPC