초록 ▼

An apparatus is disclosed for generating a non-oscillating torque wherein a magnetic induction torquer having a first coil for clockwise torque and a second coil for counter-clockwise torque is utilized. The coils are selectively driven from a constant current source by way of an assembly of switche

An apparatus is disclosed for generating a non-oscillating torque wherein a magnetic induction torquer having a first coil for clockwise torque and a second coil for counter-clockwise torque is utilized. The coils are selectively driven from a constant current source by way of an assembly of switches and associated precision dummy load impedances. A control circuit is driven by a torque command signal and a clock signal to selectively apply a plurality of control signals to the assembly of switches to cause current pulses to be directed to the appropriate coil or coils of the torquer in order to produce the commanded torque with no oscillating component in the resultant torque.

대표청구항 ▼

A torque producing apparatus comprising: a source of current; first means for producing a clockwise torque in response to current therethrough from said source; second means for producing a counterclockwise torque in response to current therethrough from said source, switching means responsive to a

A torque producing apparatus comprising: a source of current; first means for producing a clockwise torque in response to current therethrough from said source; second means for producing a counterclockwise torque in response to current therethrough from said source, switching means responsive to a plurality of control signals for selectively coupling said first and second means to said source; and control means responsive to a torque command signal for selectively generating the plurality of control signals as a function of the torque command signal, said plurality of control signals enabling said switching means to selectively control the flow of current through said first and second means such that the clockwise and counter-clockwise torques combine into a resultant non-oscillating torque corresponding to the torque commanded by the torque command signal.