Electric energy isolation transmission method and isolation transmission device

Abstract

The invention discloses an electric energy isolation transmission method and an isolation transmission device, which belong to the fields of electric energy isolation transmission and methods. The method is as follows: an isolation transmission circuit comprising a capacitor realizes the electric isolation between original auxiliary sides, suppresses leakage current between the original auxiliarysides and transmits power. The device comprises the isolation transmission circuit, wherein the isolation transmission circuit is mainly realized by the capacitor. The invention is applied to a powersupply, an adapter and a relevant product which have alternating-current or direct-current output and require lightness, thinness and high efficiency. The invention has small volume and is light, thin and practical; and meanwhile, the invention has high power transmission efficiency.

Description

technical field [0001] The invention relates to an electric energy isolation transmission method and an isolation transmission device thereof, belonging to the field of electric energy isolation transmission methods. Background technique [0002] Such as figure 1 As shown, the common method of primary and secondary side isolation in the traditional power system is to use an isolation transformer. Such as figure 2 Shown is a schematic diagram of the leakage current (touch current / Touch current) circuit in the system using transformer isolation. It can be seen from the figure that the driving source of the leakage current loop is the grid voltage of 50 / 60Hz, but in practical applications, there is still a stray capacitance C between the primary and secondary sides of the isolation transformer. k , which leads to the fact that the primary and secondary sides cannot fully realize the ideal electrical isolation, only because C k Very small, so the leakage current between the...

AI Technical Summary

Problems solved by technology

However, in order to meet the requirements of reinforced insulation of the primary and secondary sides, the traditional isolation transformer needs to adopt double insulation, so its volume, especially its thickness, is often difficult to achieve very thin; at the same time, due to the existence of its copper loss and iron loss, its loss leads to its power transmission efficiency. hard to improve

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