A design of load threshold can be configured power protection devices

A design scheme of software and hardware of configurable power protection devices is design based on the Industrial Ethernet and with MC9S12DT128 as the core.The program uses TI's High-Side Measurement Current Shunt Monitor INA168 to collect current information.After the conditioning the signal compare with the DAC8554 output voltage,which result control the current loop through or off.Output voltage of DAC8554 can be configured.If over current lock,it can exposure lock programmed.The device can be configured and easy to operate,can be widely used in electronic product's test system.