FIELD: power supplies for radio-electronic equipment.
SUBSTANCE: proposed power system has power supply, radio-electronic equipment and Zener-diode/resistor threshold device, both connected thereto through power bus, as well as controlled component whose control input is connected to output of mentioned threshold device; it also has second Zener-diode/resistor threshold device whose Zener diode is connected to that of first Zener-diode/resistor threshold device and second controlled component coupled with its output and connected in series with first controlled component; series-interconnected controlled components are connected in parallel with radio-electronic equipment and resistor of second Zener-diode/resistor threshold device is connected to center tap of series-interconnected controlled components. In addition, two more resistors are newly introduced in device, each controlled component being shorted out by one of these newly introduced resistors.
EFFECT: enhanced reliability.
2 cl, 1 dwg
