| 摘要 |
FIELD: measuring equipment.SUBSTANCE: invention belongs to measuring equipment and can be used in devices for current measurement in various systems of spacecrafts. The DC sensor with isolation includes a measuring shunt, an operational amplifier (OA), a four-winding transformer, two resistive voltage dividers with equal factors of division; a capacitor, a p-n-p-transistor, an RC filter, a blocking oscillator assembled with use of the third and fourth winding of the transformer, a diode, two resistors, a capacitor and the second transistor, and other elements shown in fig. 1.EFFECT: device simplification, decrease in quantity of elements, reliability and noise stability increase.1 dwg |
