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US 2009/0184677 A1Published application
System and method for using a stepper motor as a rotary sensor
AssigneeCypress Semiconductor Corporation
InventorRakesh Reddy
Life of this patent
Estimating the term…
Abstract
A method and apparatus for driving a stepper motor and using the stepper motor as a rotary sensor when the stepper motor is not being driven.
Claims20
A method, comprising:
- driving a stepper motor;
- and
- using the stepper motor as a rotary sensor when the stepper motor is not being driven.
An apparatus, comprising:
- a first stepper motor drive circuit;
- and
- logic to regulate power flow to the first stepper motor drive circuit.
An apparatus, comprising:
- a stepper motor;
- and
- means for using the stepper motor as a rotary sensor when the stepper motor is not being driven.
Dependencies are inferred from the claim text.