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Signal Restoration Technologies I Limited Partnership

Lutz Axel May

Paul W Latham, Ii

Don Blandino

Philip H Berger

Leonid V Bogdanov

Richard Wotherspoon

A power steering mechanism ( ) for turning steerable wheels of a vehicle comprises a rotatable input member ( ), a rotatable output member ( ), and a torsion bar ( ) connecting the input member and the output member. The torsion bar ( ) is fixedly connected to the output member ( ) and twists upon relative rotation between the input member ( ) and the output member. The torsion bar ( ) is made of a magnetoelastic material and has a defined surface area ( ) which carries a magnetic field, which magnetic field varies upon twisting of the torsion bar, magnetic field detector ( ) is located to sense variance in the magnetic field. The input member ( ) is interposed between the torsion bar ( ) and the magnetic field detector ( ) and is made of a non-magnetic material.

Power steering mechanism with magnetoelastic torsion bar

A power supply damping circuit (22) coupled across the leads of a power supply (20) is able to substantially damp or reduce the resonant response of the power supply and any associated noise, ringing, or oscillation produced by the power supply. The power supply damping circuit (22) provides a low value real impedance in parallel with the power supply (20) as a means of damping the power supply resonance circuit. The power supply damping circuit (22) includes a transconductance element (36) capacitively coupled across a power supply (20). A bias control (54) provides a bias current to the transconductance element (36) to set the static current of the transconductance element (36).

Power supply damping circuit and method

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Newbury, United Kingdom

Lutz Axel May