Variable current transducer system

摘要: A pressure or other transducer having a normal variable voltage output is converted to unit current in response the with minimum drawn by being only slightly greater than that required operate basic voltage-type transducer. The new system includes regulator and voltage-to-current converter. converter an operational amplifier transistor, one input set at equal of zero pressure. from connected through first gain adjusting potentiometer second amplifier; additional offset adjustment between junction amplifier. may both include buffering transistors. Where draws about 3.5 milliamperes, entire 4 even be below milliamperes.