CAPACITANCE-TO-FREQUENCY CONVERTER CIRCUIT FOR CAPACITIVE TRANSDUCERS

摘要

The invention relates to a capacity-frequency converter circuit for capacitive transducers formed by a ring oscillator (2000) including variable capacity capacitors with a capacity that can vary with the magnitude to be measured, a binary counter (3000) providing a binary digital output, a parallel-to-serial converter (40000) and a control logic block (1000) coordinating the operations between the mentioned components.