Russian Federation
As an example of the practical implementation of stated control principle in modern systems, the power module for controlling the hump points is considered, which switches the operating circuit of the point machine by means of power transistors with an isolated gate and small-size relays for printed mounting. Particular attention is paid to the problem of ensuring reliable and safe operation of relay-semiconductor circuits for controlling DC motors constructed using small- sized relays that are not devices of the first reliability class.
relay-semiconductor switching, hump point, power module, switching node, switching circuit, isolated gate transistor, small-sized power relay, check of contacts opening, breaking capacity, deadlock switching mode, check of the integrity of the switching circuit, automatic point return
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