LOGIC SIGNALS GALVANIC ISOLATION DEVICE (EMBODIMENTS) Russian patent published in 2018 - IPC H03K3/00 

FIELD: data processing.

SUBSTANCE: invention relates to the information over wire lines reception and transmission devices. It can be used for reception and transmission of pulse signals of arbitrary duration in automatic control systems and information collection and processing systems. Device comprises galvanic isolation element in the form of pulse transformer (4), in-series connected input information encoder (1), transmitter (TR) terminal amplifier (3), and also the in-series connected the receiver input threshold amplifier (5) and the decoder (6). Transmitter terminal amplifier (3) consists of two identical amplifiers (3.1 and 3.2), made in the form of buffer digital amplifiers with three states: “1”, “0” and “disconnected”, between which outputs the galvanic isolation element is connected in the form of transformer (4) with one primary and one secondary winding. At that, coming to the galvanic isolation element, the transformer (4), input signals, are encoded by two unipolar signals, shifted in time by the delay time, set by the delay element (2), the pulses duration generator.

EFFECT: technical result consists in increase in the data transmission frequency up to 100 Mbit/s, the device design simplification and increase in its reliability.

1 cl, 6 dwg