DEVICE FOR SPARK-SAFE POWER SUPPLY OF TWO-WIRE PICKUP Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: power supply source is coupled through current converter to anode of first diode which cathode is coupled through network composed of fuse, limiting and ballast resistors to first output of pickup. Second output of pickup is coupled with common point to anode of stabilizer diode and output of power supply source. Cathode of stabilizer diode is coupled to cathode of second diode and through additional resistor and fuse to output of additional voltage of power supply source. Anode of second diode is coupled to common point of ballast and limiting resistors. EFFECT: simplified design, improved operational stability. 1 dwg