DIRECT CURRENT STABILIZER Russian patent published in 1994 - IPC

FIELD: stabilized power sources. SUBSTANCE: current stabilizer has digital-to-analog converter 1, two amplifiers 2 and 10, two transistors 5 and 6 of different polarity of conductivity, two resistive current sensors 7 and 8 four resistors 3,4,9 and 11. Any change in stabilizer output voltage causes change in voltage across output of amplifier 11 which leads to change in signal at output of digital-to- analog converter 1. At the same time output voltage of amplifier 2 changes and acts on transistors 5 and 6 so that deviation of stabilizer output current from nominal value at output voltage changes tends to zero. Values of resistors 3,4,9 and 11 and current sensors 7 and 8 are selected to make output current of stabilizer strictly proportional to code applied to digital-to-analog converter 1. EFFECT: enlarged operating capabilities. 1 dwg