APPARATUS FOR DETECTING CURRENT FOR MULTI SENSOR ARRAYS

• Main Authors: WEE, JAE KYUNG, SHIN, YOUNG SAN
• Format: Patent
• Language: English; Korean
• Published: 26.02.2013
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

PURPOSE: A current detecting apparatus for a multi sensor array is provided to detect various materials with a structure having a low power and a small area about multiple sensor arrays. CONSTITUTION: A detecting part(300) includes a current input part(310), a current transforming part(320), a digital converting part(330), and a voltage providing part(340). A current input part amplifies multiple current signals inputted from a multi sensor according to a previously set current mirror ratio and fixes each node voltage at which multiple current signals are inputted by a differential amplifier. A current transforming part converts each of amplified current signals into an amplified voltage signal by using a feedback resistance and an operational amplifier connected in parallel. A digital converting part converts each of amplified voltage signals converted by a current transforming part into a digital value. A voltage providing part generates and applies voltage for driving a multi sensor, a current input part, a current transforming part, and a digital converting part respectively. [Reference numerals] (310) Current input part; (320) Current converting part; (330) Digital converting part; (340) Voltage providing part