What are the role of relays in electronic circuits ... Can you explain the use of a thyristor as a latching switch, draw and interpret circuit diagrams containing thyristors in switching circuits.

Single pole, single throw switch (SPST) is a latching switch ... allowing switching between two circuits, and is used in mode selection for small electronic devices. Reed switch is activated ...

Abstract: IN THIS PAPER we shall be concerned first with multiple-output combinational relay switching circuits, that is, circuits which may be represented symbolically as in Fig. 1. The n coils X1, ...

Abstract: PRACTICALLY all of the telephone switching equipment in an exchange is made up of wired assemblies - assemblies of relays and other components interconnected by a multiplicity of wires.

These microcontroller based projects are covered with detailed explanation of working of hardware, circuit diagrams, software and codes.