A current sensor is an electrical device used to measure the current along a specific wire. Inverter Hall current sensors achieve this by measuring the voltage drop across a resistor in the current path. This allows the sensor to estimate the level of current flowing through the line. The output of the current sensor can either be a voltage reading or a continuous current, which is roughly proportional to the current level moving along the test path.

There are various types of current sensors available to monitor AC or DC currents, and these are needed in many applications across industrial, automotive, or household fields. A current sensor detects and converts current to obtain an output voltage, which is proportional to the current in the designed path. When current flows through a circuit, the voltage drops along the path through which the current flows. Additionally, a magnetic field is generated near the current-carrying conductor. These phenomena are utilized in the design techniques of current sensors.

To minimize power loss, the value must be kept low: the value of current sensing is usually dependent on the threshold voltage of the circuit. The operation of inverter Hall current sensors is entirely based on the sensed current information. To improve accuracy, we must consider a low-temperature coefficient: in terms of accuracy, temperature is a major coefficient of resistance. A resistor with a temperature coefficient close to zero should be used throughout the operation. The power derating curve provides the allowable power at different temperatures. However, the peak power capacity is a function of energy, so the energy rating curve should be considered. Introducing additional resistance in the measured circuit path may increase the source output resistance, producing undesirable load effects. Due to the direction of power dissipation, power loss occurs. Therefore, current-sensing resistors are rarely used outside of low and medium current-sensing applications.

There are various current sensors to monitor AC or DC current, which are required for measurement in many applications in industrial, automotive, or household fields. A current sensor is a device that detects and converts current to obtain an output voltage, which is proportional to the current in the design path. When current passes through a circuit, the voltage will decrease along the path through which the current flows. In addition, a magnetic field is generated near the current carrying conductor. These phenomena are used in the design technology of current sensors.

In order to reduce power loss, the value must be taken low: the current sensed value usually depends on the threshold voltage of the circuit, and the operation of the inverter Hall current sensor is entirely based on the sensed current information. In order to improve accuracy, we must consider the low-temperature coefficient: in terms of accuracy, temperature is the main coefficient of resistance. A resistor with a temperature coefficient resistance close to zero should be used throughout the entire operation process. The power derating curve provides the allowable power at different temperatures. But peak power capacity is a function of energy, so the energy rating curve should be considered. Introducing additional resistors in the tested circuit path may increase the source output resistance and produce adverse load effects. Due to the direction of power dissipation, power loss occurs. Therefore, current sensing resistors are rarely used for applications other than low and medium current sensing.