AN ECONOMY IN POWER CONSUMPTION SENSOR CIRCUIT OF A VERTEBRA CURVE-SYMPTOM CORRECTION APPOINTMENT SURVEILLANCE DEVICE

摘要

A power saving sensor circuit of a sensor for a scoliosis correcting support is provided to improve the life span of a battery by supplying power to a pressure sensor detecting circuit only if necessary. A power saving sensor circuit(101) of a sensor for a scoliosis correcting support includes a power control unit(300) for applying power to a sensor power unit(302) by an input power unit(301) only when a command is applied from a microprocessor(200) to a resistance(R1) to obtain information about a pressure sensor(401) and a sensor detecting unit(400) for stably detecting the sensing result against noise. The power control unit comprises a power coupling unit(303) making the input power unit apply power to the sensor power unit by conducting a first transistor(Q1) by a command applied to the resistance and a power recognition unit(304) indicating that the power is applied to the sensor power unit and a capacitor(C1).