Linear variable differential transformer (LVDT) system using an inductance of an LVDT primary as a micro-power excitation carrier frequency to lower a drive power

摘要

A linear variable differential transformer (LVDT) system is disclosed. The system has an LVDT. A signal conditioner circuit is coupled to the LVDT. The signal conditioner circuit uses an inductance of the LVDT primary as a micro-power excitation carrier frequency to lower a drive power of the system. The signal conditioner circuit generates output currents that are summed and filtered to generate a position proportional voltage.