An apparatus providing a signal related to a position of a coupler element comprises an exciter coil and a receiver coil, the apparatus being operable to provide a signal correlated with the position of the coupler element using a receiver signal generated when the exciter coil is energized due to an inductive coupling between the receiver coil and the exciter coil. In some examples, the receiver coil has first and second sections generating a first section signal and a second section signal respectively, and an electronic circuit is operable to generate a position- independent signal using the first section signal and the second signal. This position-independent signal may then be subtracted from a baseline voltage to provide an improved reference signal for ratiometric position sensing.
申请公布号
WO2008087545(A4)
申请公布日期
2009.08.20
申请号
WO2008IB00117
申请日期
2008.01.18
申请人
KSR TECHNOLOGIES CO.;LEE, JOONG, K.;ELLIOTT, RYAN, W.