Patent ID: 7834307

Claim:
A PWM output type sensor circuit for outputting a PWM output having a pulse width associated with a first physical quantity as information about the first physical quantity, the PWM output type sensor circuit comprising: physical quantity obtaining means for outputting sensor data by obtaining the information about the first physical quantity detected by a sensor element; sampling means for sampling the sensor data outputted from the physical quantity obtaining means a plurality of times; calculation means for calculating an average value of the sum of sensor data sampled by the sampling means per sampling time; sampling number determination means for determining a sampling number to be set for the sampling means based on the sensor data outputted from the physical quantity obtaining means, the plurality of sensor data sampled by the sampling means, or the average value calculated by the calculation means; PWM conversion means for generating the PWM output having the pulse width associated with the first physical quantity based on the average value calculated by the calculation means; and output means for outputting the PWM output generated by the PWM conversion means.