Earth leakage circuit breaker and image forming apparatus

Abstract

An earth leakage circuit breaker and an image forming apparatus are disposed. The earth leakage circuit breaker includes an earth leakage detector, a rectifier, a switching part, and a controller. The switching part is installed on an electric circuit between an alternating current (AC) power supply and the rectifier, and switches between supply and interruption of the power from the AC power supply. The earth leakage detector is installed between the AC power supply and a load. The rectifier rectifies the AC power into direct current (DC) power. The controller causes the rectifier to perform half-wave rectification until earth leakage is detected by the earth leakage detector, and causes the rectifier to perform full-wave rectification when the earth leakage is detected by the earth leakage detector. According to the earth leakage circuit breaker and the image forming apparatus, the earth leakage circuit breaker for the image forming apparatus and other electronic devices can ensure safety performance and saves electric power.

Description

technical field [0001] The present invention relates to an earth leakage interrupter and an image forming apparatus, and specifically relates to a technique for reducing power consumption of an earth leakage interrupter. Background technique [0002] In electronic devices such as image forming apparatuses, an earth leakage breaker is generally provided. Even if the electronic equipment is in the standby state, leakage current breakers such as leakage current breakers are always on and consume power. Therefore, by reducing the power consumption of the earth leakage interrupter, the power consumption of electronic equipment can be reduced. [0003] For example, someone proposes a power supply device, which is equipped with a leakage detection unit and an abnormality detection unit based on the secondary current detection leakage of the zero-phase converter on the power supply circuit. The AC power supply also stops power supply to the leakage detection unit and the abnormali...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned power supply device reduces power consumption by cutting off not only the power supply to the power supply circuit but also the power supply to the leakage detection unit and the like when a leakage occurs, but it always supplies a predetermined amount of power to the leakage detection unit and the like in normal times. There is no reduction in normal power consumption, and there is still room for further power saving

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