Position sensor decomposition rate increasing device and method

摘要

The present invention relates to a servo controller, and more particularly, to an apparatus and method for increasing a position sensor decomposition rate, which is applied to a control device using a position sensor to calculate position data more subdivided than that of a position sensor to improve the performance of the control apparatus. A first flipper that receives the LSB signal of the position sensor, outputs and stores the flip-flop 11A, 11B, and receives the data of the flip-flop 11A, 11B. When the status signal of the gate 12, the first NOA gate 12 is low (L), the first counter 13 is enabled (EN) and outputs LSB amplitude data, and the clock signal is input to the counter. Enable (EN) when the clock generator 20, the second NOR gate 31 for NORing the LSB signal of the position sensor, and the output signal of the second NOR gate 31 are inverted and inputted Second car outputting the increased position data (LSB holding time) By configuring the rotor 32, the present invention configures a circuit that can increase the decomposition rate of the position sensor, thereby calculating the position data more subdivided than the decomposition rate of the position sensor to improve the control performance of the control device in which the position sensor is used. As a result, the cost is reduced by using a low resolution sensor.