Title:
ELECTRONICALLY CONTROLLABLE RESISTOR
Document Type and Number:
WIPO Patent Application WO/2020/209745
Kind Code:
A8
Abstract:
An electronically controllable resistor, which is designed for controllable variation of the resistance of a subcircuit, is provided with a terminal for connection to a first control voltage source and comprises a voltage converter, a measuring resistor and a subtractor, and additionally comprises a terminal for connection to a second control voltage source, and also an actuating element, which is connected in series with the measuring resistor and has three terminals. The first terminal is connected to a first terminal of the measuring resistor, the second terminal is connected to an output of the subtractor, and the third terminal is connected to a high-voltage terminal of the electronically controllable resistor. The voltage converter is an electronic component capable of converting input control signals from the control voltage sources and from the high-voltage terminal of the electronically controllable resistor into an intermediate signal, which is delivered to an output of the voltage converter, the value of said intermediate signal being equivalent to the product of a voltage value at the high-voltage terminal of the electronically controllable resistor and a quotient resulting from the division of the control voltage values by one another. The electronically controllable resistor makes it possible to produce a wide range of nominal resistance values for the electronically controllable resistor, even down to extremely low values, while at the same time providing resilience against the effect of destabilizing factors, including temperature.
Inventors:
ROMANOV YURIY IGOREVICH (RU)
MALETSKIY STANISLAV VLADIMIROVICH (RU)
MALETSKIY STANISLAV VLADIMIROVICH (RU)
Application Number:
PCT/RU2019/000233
Publication Date:
June 10, 2021
Filing Date:
April 10, 2019
Export Citation:
Assignee:
CLOSED UP JOINT STOCK COMPANY DRIVE (RU)
International Classes:
H03H11/46
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