What is a high-side current-sense?
High–side sensing allows for the system to identify ground shorts and does not create a ground disturbance on the load. Design Notes. 1. DC common mode rejection ratio (CMRR) performance is dependent on the matching of the gain setting resistors, R2-R5. 2.
What is a high-side current monitor?
Common to all high-side IC monitors from Maxim is an ability to provide ground-referenced voltage or current outputs with few or no additional components. The output signal is proportional to the measured high-side current, which can have a common-mode voltage as high as 32V.
What is a current-sense circuit?
A current sensor circuit is a circuit that can measure the current flowing through it. Current sensor circuits are used extensively in systems such as battery management systems in order to detect the current to monitor for overcurrent, a short circuit, and the state of charge of the battery system.
What is low side current sensing?
Low-side current sensing is when the voltage is measured across a sense resistor that is placed between the load and ground. Figure 1 shows the configuration for low side current sensing.
How does a current-sense amplifier work?
A current sense amplifier is a special purpose integrated circuit differential amplifier that is designed to sense the voltage developed across a current shunt and output a voltage proportional to the measured current.
How do we sense current?
The most common way to measure current is to sense the voltage drop across a shunt or current-sense resistor. To achieve a highly accurate measurement of the current, you’ll need to examine the parametric values of both the resistor and current-sense amplifier.
What is the purpose of current sensing?
A current sensor is a device that detects and converts current to an easily measurable output voltage, which is proportional to the current through the measured path.
How does a current sensing circuit work?
A current sensing circuit or board monitors electronic current flow in a number of applications. How does it work? Current sensors are able to monitor the current by measuring the drop in voltage for a resistor, which is placed in the direct path of the current.
What is Hall effect current sensor?
A hall effect current sensor allows non-contact detection of direct and alternating currents, using a hall element, a magnet-electric converting element. This minimizes power loss of the target current circuit and has a simple structure with high reliability.
What is gain of current sense amplifier?
Gain: Current sense amplifiers come with various gain options that have robust performance over temperature and process variations by integrating a precisely matched resistive gain network. The gain options for fixed gain amplifiers vary from 0.125 V/V to 1000 V/V with gain errors as low as 0.01%.
What is current shunt feedback?
Current-Shunt Feedback In the current shunt feedback circuit, a fraction of the output voltage is applied in series with the input voltage through the feedback circuit. This is also known as series-driven shunt-fed feedback i.e., a series-parallel circuit.