A Design Method for Over Current and Over Voltage Protection Circuits
According to the design requirements of the airborne radio power supply,in order to avoid damage during load over current or over voltage and improve circuit reliability,it is necessary to add protection functions to the power supply.This article designs a circuit scheme with over current and over voltage protection functions.The hardware part consists of a current conversion circuit,a following circuit,a hysteresis comparison circuit,and a driving circuit.The software part is implemented with FPGA for soft filtering protection function.Compared with traditional protection functions,it has achieved automatic control shutdown and recovery functions in case of faults,which has improved the design of airborne radio power supply,met the requirements of over current and over voltage usage,and reduced the risk of load damage caused by over current or over voltage.
reliabilityover current protectionover voltage protectionhysteresis comparison
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维普
