Switched mode power supply based on visible-light communication with multi-output and history checking function

摘要

The present invention relates to a switching mode power supply comprising a power supply unit, a rectification unit, a switching unit, a transforming unit, and an output unit, comprising: a measurement unit having a sensor for detecting power supply information output on the output unit in real time; A main controller having an MCU for determining the detected power information according to the set information and outputting an adjustment signal; A controller for receiving the control signal and a variable resistor for controlling a pulse of the switching unit, and a memory for storing the control signal in order; And a communication unit having an LED for emitting visible light to transmit the power supply information and a light receiving element for collecting visible light to receive the setting information from the outside. Accordingly, the present invention can be used in a device or apparatus that is susceptible to frequency interference by using visible light communication using a high frequency. Even if the control function is lost by sequentially storing the control history in the memory, It has the effect of continuous operation.