Electronic circuit capable of recognizing null line automatically
An electronic circuit and self-identification technology, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as leakage current exceeding the standard, equipment casing charged, equipment failure, etc.
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[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0021] Refer below figure 1 An electronic circuit for self-identifying neutral wire according to an embodiment of the present invention is described, the circuit includes a live wire J1, a neutral wire J2 forming a loop with the live wire J1, and a protective ground wire J4.
[0022] The live line J1 is connected with an overcurrent protection fuse F1, a step-down circuit composed of a seventh resistor R2 and a first capacitor C1 connected in parallel, and a rectifier circuit. The positive pole of the rectifier circuit is connected to th...
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Abstract
Description
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Application Information
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