Signal processing unit for car engine has mark-space ratio based on temporal oscillations between first and second capacities with duration of oscillation proportional to value of capacity

摘要

Mark-space ratio is based on temporal oscillations between first and second capacities (C1, C2). Duration of each oscillation is respectively proportional to value of each capacity. Oscillation is made by oscillating unit (11) that is mutual to two capacities and with logic doors (N1, N2) or operational amplifiers, linked to inversing circuit (I1, I2).