FIELD: electrical engineering; electronics.
SUBSTANCE: control device for an electronically controlled resistor (ECR) comprises an adder, an operational amplifier, a controlled current generator and a voltage divider, and also contains five leads, first and fourth of which are connected to variable resistor, second is designed to receive a feedback signal from the connection point of the measuring resistor and the external active element, the third is intended for connection of the control output of the external active element, and the fifth is connected to the low-potential output of the device.
EFFECT: wider range of technical means realizing their purpose in the form of control devices for an electronically controlled resistor (ECR), due to the possibility of using variable resistance of variable resistors for controlling the ECR.
7 cl, 4 dwg
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