Abstract
Design of Regulated Power Supply and Electric Leakage Protection Circuit with Low Dropout Regulator Function in Food Temperature System
Highlights
With the wider deployment and development of portable electronic devices, there are higher and stricter demands for the design of DC regulated power supply
This study introduces a design of DC linear regulated power supply that has LDO function and leakage protection circuit
With a fixed load resistance at 5Ω, the adjustment in voltage is less than 0.2% when the DC input is within 5.5-27V and output voltage is at 5±0.05V
Summary
With the wider deployment and development of portable electronic devices, there are higher and stricter demands for the design of DC regulated power supply. This food temperature system includes DC regulated power supply, electric leakage protection circuit, current sampler, load over-current protection circuit, STC12C5204AD MCU for real-time sampling of output voltage and current signals and detect electric leakage by using Hall sensor to detect the leaking current. This study introduces a design of DC linear regulated power supply that has LDO function and leakage protection circuit. It uses STC12C5204AD MCU to display real-time current, voltage and power.
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