Over-current detection system, method and device

Abstract

The invention relates to an overcurrent detection system, method and device, the system comprises a collector, an optical coupling isolator and a comparator, and the comparator is coupled with the collector through the optical coupling isolator; the collector is configured to collect a to-be-detected signal output by a target circuit; wherein the signal to be detected is an electric signal; the optical coupling isolator comprises a light-emitting element and a sensing element, the light-emitting element is configured to receive a signal to be detected and generate a light sensing signal, and the sensing element is configured to receive the light sensing signal and generate a sensing signal; the light sensing signal is a light signal, and the sensing signal is an electric signal; the comparator is configured to receive the induction signal, compare the intensity of the induction signal with a preset reference intensity signal, and output a detection result. Compared with the prior art, optical isolation can be carried out on the detection circuit (namely a system or device) and the target circuit by introducing the optical coupling isolation device, so that signal interference generated by direct access is reduced, and the target circuit works stably.

Description

technical field [0001] The present invention generally relates to the field of circuit detection and circuit control, in particular to an overcurrent detection system, method and device. Background technique [0002] With the development of the economy, the progress of society and the intensification of competition, more and more people hope to change their image through medical cosmetology, gain advantages in all aspects of life, such as school admission, job hunting, work, marriage, social interaction, etc., and improve their lives. Quality even changes your life. Therefore, there are more and more people who want to accept medical beauty treatment, and the group is also expanding. As one of the medical devices, beauty devices, like other medical devices, involve many industries such as medicine, machinery, electronics, plastics, etc. It is also a multidisciplinary, knowledge-intensive, and capital-intensive high-tech industry. With the continuous improvement of the need...

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Problems solved by technology

[0004] However, connecting the detection circuit directly to the target circuit is likely to cause signal interference to the target circuit and affect the normal operation of the target circuit. Therefore, such control can only meet the overcurrent and overvoltage protection or controllable output, but cannot meet the stability requirements.

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