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Accurate current sensing is used in a wide variety of applications where the current is either regulated as part of a feedback loop – in a switched mode power supply (SMPS), for example, or a to control torque and speed in a motor driver - or controlled to detect levels that could be critical or dangerous for the system and implement appropriate over-current protections.

Very often current sensing is performed by measuring the voltage drop developed across shunt-resistors that can be connected to ground (low-side sensing) or to the supply rail (high-side sensing).

ST provides a range of solutions to help engineers implement high-efficiency and accurate current sensing applications including current-sense amplifiers, high-precision operational amplifiers and comparators.

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Vibration, ultrasound and environmental sensor nodes for condition monitoring with Wi-Fi and cellular connectivity to cloud applications
Vibration, ultrasound and environmental sensor nodes for condition monitoring with Wi-Fi and cellular connectivity to cloud applications