VOLTAGE-CONTROLLED STEPPER MOTOR DRIVER

Title:

VOLTAGE-CONTROLLED STEPPER MOTOR DRIVER

Document Type and Number:

WIPO Patent Application WO/2011/119770

Kind Code:

A3

Abstract:

A stepper motor driver system includes: a digital signal controller configured to digitally synthesize synthesized analog voltage signals that will induce a desired velocity of a stepper motor when applied to a pair of stepper motor windings; and voltage amplifiers, communicatively coupled to the digital signal controller, configured to amplify the synthesized analog voltage signals to produce amplified analog voltage signals and to output the amplified analog voltage signals; where the digital signal controller is configured to synthesize the analog voltage signals by affecting at least one of a phase or an amplitude of each of the analog voltage signals as a function of the desired velocity of the stepper motor

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Inventors:

WEBB CLIFFORD W T (US)
REILLY BRIAN F (US)

Application Number:

PCT/US2011/029679

Publication Date:

January 12, 2012

Filing Date:

March 23, 2011

Export Citation:

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Assignee:

PELCO INC (US)
WEBB CLIFFORD W T (US)
REILLY BRIAN F (US)

International Classes:

H02P8/14; G05B19/40

Foreign References:

JP2006129624A	2006-05-18
JP2006149143A	2006-06-08
KR20030090234A	2003-11-28
JP2008295205A	2008-12-04
JPH07123788A	1995-05-12
JP2008072876A	2008-03-27

Other References: