Trigger mechanism for current acquisition used for motor...

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...

Reexamination Certificate

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Details

C318S400020, C318S400040, C318S400110

Reexamination Certificate

active

08050543

ABSTRACT:
A trigger mechanism for starting current acquisition for motor control applications is disclosed. The present invention may generate an edge (ADC trigger) that can be used to start current acquisition by the ADC. The present invention may reduce the overhead involved in synchronizing the current acquisition with PWM generation and also minimize the wait period for software conversions to complete by replacing software-based timing with a hardware-based trigger mechanism.

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Atmel Corporation, “AVR443: Sensor-based Control of Three Phase Brushless DC Motor,” Feb. 2006.

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