HIGH PERFORMANCE POWER INPUT CIRCUITS USING SYNCHRONIZED MECHANICAL SWITECHES

摘要

The preferred embodiments of the present invention use synchronized mechanical switches to support electrical switching circuits. Due to near perfect impedances of mechanical switches as well as accurate timing control mechanisms, the preferred embodiments of the present invention provide significant improvements in power efficiency and cost efficiency of first stage power input circuits.

主权项

1. An electrical circuit comprising:
Two electrical power input connections (Vp, Vn) that allow electrically operated equipment to be connected to two terminals of the primary AC power supply in a building, A mechanical switch (SWp) that provides switching configurations to turn on electrical connections to Vp depending on the positions of a movable conductor, where a mechanical switch is defined as an electrical switch that comprises a movable conductor that connects or disconnects its terminals according to the positions of the movable conductor, and that the electrical connections made by the mechanical switch are formed by direct contact between electrical conductors, and Another mechanical switch (SWn) that provides switching configurations to turn on electrical connections to Vn depending on the positions of a movable conductor; Wherein the motions of said movable conductor of SWp and said movable conductor of SWn are controlled so that the timing when SWp is switched to turn on electrical connections to Vp and the timing when SWn is switched turn on electrical connections to Vn are synchronized, while SWp and SWn are capable of switching at a switching frequency equal to or higher than the frequency of the primary AC power supply in a building.