In medical systems or industry systems, designer often need to monitor system current in case fault, monitor system power status or current for control system. There are many current sensing amplifier available in the market but most of them are designed for sensing current in a positive output power supply applications and cannot directly be used for negative output power supply designs. This application note introduces four methods to use TI designs to sense current for a negative output power supply.
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In medical system or industry system, designers often need to monitor system current in case fault, monitor system power status, or current control. There are many current sensing designs available in the market but most of the sensing designs are designed for sensing current in a positive output power supply application and cannot directly be used for negative output power supply designs. This application note introduces four options to use TI designs to sense current for a negative output power supply.