Damper system

摘要

An output force from a system (10) comprising a damper (22) and a power drive (20) is controlled using feedback (34) from the output of the damper (22) relative to the input to the damper (22). By adopting a damper (22) with a variable damping coefficient and controlling that coefficient, the system (10) can achieve force/torque performance over a wide range of force values, with low output impedance and a large bandwidth. The damper (22) also serves as an impact absorption device to protect the power drive (20) from external impact.