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公开(公告)号：IT8023016D0
公开(公告)日：1980-06-26
申请号：IT2301680
申请日：1980-06-26
Applicant: IBM
Inventor： FRANKENY RICHARD FRANCIS , CLANCY DOUGLAS EUGENE , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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公开(公告)号：NO802130L
公开(公告)日：1981-01-19
申请号：NO802130
申请日：1980-07-15
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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公开(公告)号：NO802130A
公开(公告)日：1981-01-19
申请号：NO802130
申请日：1980-07-15
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
CPC classification number: H02P8/32
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公开(公告)号：FI72413C
公开(公告)日：1987-05-11
申请号：FI802259
申请日：1980-07-16
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
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公开(公告)号：FI72413B
公开(公告)日：1987-01-30
申请号：FI802259
申请日：1980-07-16
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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Patent Agency Ranking
公开(公告)号：DE3171092D1
公开(公告)日：1985-08-01
申请号：DE3171092
申请日：1981-03-06
Applicant: IBM
Inventor： HALL DAVID ALLEN , OLSON GEORGE PETER
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公开(公告)号：NO155520B
公开(公告)日：1986-12-29
申请号：NO802130
申请日：1980-07-15
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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公开(公告)号：IT1148876B
公开(公告)日：1986-12-03
申请号：IT2301680
申请日：1980-06-26
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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公开(公告)号：NO155520C
公开(公告)日：1987-04-08
申请号：NO802130
申请日：1980-07-15
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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公开(公告)号：DE3065589D1
公开(公告)日：1983-12-22
申请号：DE3065589
申请日：1980-05-13
Applicant: IBM
Inventor： CLANCY DOUGLAS EUGENE , FRANKENY RICHARD FRANCIS , OLSON GEORGE PETER
Abstract: A damping control system for a three phase stepper motor. A reluctance velocity transducer is used for each of the three phases. The output of each of the transducers is proportional to the rotational velocity of the motor. Each of the transducers is rotationally phase shifted 3.75 with respect to one another and phased to the motor rotor rotationally such that the zero voltage crossings of the transducers correspond to the zero torque crossings of the motor. During damping or detenting of the motor the selected phase has current applied to it which is equal to a predetermined fixed value plus the feedback from its associated transducer. The windings on each side of the detent position have current applied to them which is proportional to the voltage from their respective feedback transducers. The voltage in each of the windings is amplified by a selected gain constant. The current in each of the windings is such that maximum torque is applied to drive the motor to the detent position with appropriate current reversals in the windings to damp out any kinetic energy in the rotor during detenting.
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