SOURCE OF POWER Russian patent published in 2021 - IPC G05F1/56 

FIELD: power sources.

SUBSTANCE: invention relates to power sources with adjustable output voltage and output current and can be used to power various nodes, which require both the ability to control the output voltage and output current levels, and fast switching between control modes, for example, to form the supply voltage of the collectors (drains) of transistors when testing their characteristics. The proposed device contains a controlled reference voltage source for setting the level of stabilization of the voltage value, a controlled reference voltage source for setting the level of stabilization of the current value, two operational amplifiers with power supplies of positive and negative voltages, a current source in the common load circuit of the operational amplifiers, two diodes for switching currents loads of operational amplifiers, two transistors to ensure the operation of amplifiers in a linear mode, two resistors for setting the divider gain for voltage control, two divider resistors for setting the gain for current control, two resistors for compensating for bias currents at the inputs of operational amplifiers, load power supply, a power transistor for setting the level of the output voltage or output current, a resistor in the base circuit of the transistor, a resistive current shunt for generating a feedback signal on the magnitude of the load current.

EFFECT: reduction of the transition time between voltage and current regulation modes, depending on the value of the current in the load circuit.

3 cl, 5 dwg