Stepper Motors BJ Furman 23MAR2011.

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Presentation transcript:

Stepper Motors BJ Furman 23MAR2011

Stepper Motor Operation - Full Step Mode Rotor and Stator A1 B1 A2 B2 S N

Stepper Motor Operation - Full Step Mode B1 A2 B2 high Step 1a N S Energize windings: A1 and B1 high A2 and B2 low S high low N S low

Stepper Motor Operation - Full Step Mode B1 A2 B2 high Step 1b N S Energize windings: Rotor moves to align with net magnetic field high S low N S low

Stepper Motor Operation - Full Step Mode B1 A2 B2 low Step 2a Energize windings: A2 and B1 high A1 and B2 low S high S S N low N N N high

Stepper Motor Operation - Full Step Mode B1 A2 B2 low Step 2b Energize windings: Rotor moves to align with net magnetic field S high N S N low S N N high

Stepper Motor Operation - Full Step Mode B1 A2 B2 low Step 3a Energize windings: A2 and B2 high A1 and B1 low S low N N S S high N N high

Stepper Motor Operation - Full Step Mode B1 A2 B2 low Step 3b Energize windings: Rotor moves to align with net magnetic field S low N N S S high N N high

Stepper Motor Operation - Full Step Mode B1 A2 B2 high Step 4a Energize windings: A1 and B2 high A2 and B1 low N low N N S S high S S low

Stepper Motor Operation - Full Step Mode B1 A2 B2 high Step 4b Energize windings: Rotor moves to align with net magnetic field N low S N S N high S S low

Stepper Motor Operation - Full Step Mode B1 A2 B2 high Step 1a N S Energize windings: A1 and B1 high A2 and B2 low S high low N S low

Stepper Motor Operation - Full Step Mode B1 A2 B2 high Step 1b N S Energize windings: Rotor moves to align with net magnetic field high S low N S low

Stepper Motor Operation - Half Step Mode Step 1a Energize windings: Just B1 high A1, A2 and B2 low A1 low B1 high S B2 S S N N low N A2 low

Stepper Motor Operation - Half Step Mode Step 1b Energize windings: Rotor moves to align with net magnetic field Only 45 deg. rotation! A1 low B1 high B2 S S N S N N low A2 low

Stepper Motor Operation - Half Step Mode Step 2a S A1 B1 A2 B2 low Energize windings: A2 and B1 high A1 and B2 low S high S N S N low N N high

Stepper Motor Operation - Full Step Mode Step 2b S A1 B1 A2 B2 low Energize windings: Rotor moves to align with net magnetic field S high N S N low S N N high