CONTROLLED SWITCH OF ELECTRIC CIRCUIT ELEMENTS Russian patent published in 2018 - IPC H03K17/16 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer technology and can be used for switching resistors in digital-to-analog converters. Controllable commutator of the elements of the electric circuit contains an electrical circuit with a switched element, a driver of a voltage supply circuit, operational amplifier, two sources supplying constant voltages of positive and negative polarity, two controllable keys and a control voltage generator for these keys, to which input signals are provided. Group of consecutively-included managed keys was additionally introduced, the free output of the first additional controllable switch is connected to the free terminal of the present fourth resistor. Given the limit of the number of additional managed keys, the number of these keys is determined in their sequential inclusion, providing a sufficient equivalent value of their reverse resistance, the limiting number of additional control keys.

EFFECT: technical result is an increase in the value of the reverse resistance of the switch.

1 cl, 1 dwg