Disclosed is a directional coupler having a coupler, a forward resistive attenuator, a reflected resistive attenuator, a forward compensation capacitor, and a reflected compensation capacitor. A forward coupler side arm and reflected coupler side arm of the coupler are configured to obtain a sample of forward energy and a sample of reflected energy from the coupler transmission line section. The forward resistive attenuator and reflected resistive attenuator are configured to attenuate the sample of forward energy and the sample of reflected energy. The forward compensation capacitor and the reflected compensation capacitor are configured to receive the attenuated sample of forward energy and the attenuated sample of reflected energy and produce a frequency-compensated sample of forward energy and a frequency-compensated sample of reflected energy.

The present disclosure provides a current detection system, method and device. The current detection system includes a management unit and a current detection device that is connected with the management unit. The current detection device includes a shunt-type current measurement unit, an open-loop Hall-type current measurement unit and an isolation power unit.

A support bracket for grounding a current sensor is disclosed. The support bracket comprises a first surface and a second surface. The first surface is electrically coupled to a current sensor to provide a current path to ground the current sensor. The second surface is physically coupled to the current sensor in order to support the current sensor.

This disclosure is directed to techniques that may accurately determine the amount of current flowing through a power switch circuit by measuring the voltage across the inherent impedance of the circuit connections. One connection may include a low impedance connection between the power switch output and ground, where the low impedance connection may be on the order of milliohms. By using a four-wire measurement, the sensing connections are not in the current path, so the measured value may not be affected by the current. The connection that makes up the current path can be accomplished with a variety of conductive materials. Conductive materials may have a temperature coefficient of resistivity that may impact a measurement of electric current as the temperature changes. Measuring the temperature of the current path, along with the voltage across the connection, may allow a more accurate current measurement.

A current-measuring unit, especially for measuring a battery current in a vehicle, includes a printed circuit board (12) and a first bus bar (16) leading to and fixed at the printed circuit board that provides at least one first shunt contact surface (30). A second bus bar (18) leading to and fixed at the printed circuit board provides at least one second shunt contact surface (42). A first measuring strip conductor (44) is associated with the first bus bar at the printed circuit board. A second measuring strip conductor (46) is associated with the second bus bar at the printed circuit board. A shunt resistor (48) has a first contact area (50) connected by soldering to the first bus bar and to the first measuring strip conductor and has a second contact area (52) connected by soldering to the second bus bar and to the second measuring strip conductor.

At least two redundant analog input units for a measurement current have analog inputs which are connected in parallel and upon which voltage measuring devices directly lie to convert respectively applied voltages into a digital measurement value, wherein in order to detect errors, in particular in order to detect wire breakage, each analog input unit compares its generated measurement value with a threshold and outputs an error message if a measurement value is detected that falls below the threshold, where if the analog input of the analog input unit is in the low-resistance state, then the at least one other analog input unit is additionally caused to assume a current-measuring function and switch the analog input of the analog input unit to a low-resistance state.

A current sensor integrated circuit to sense a current through a resistor includes a substrate, a tub disposed in the substrate, an analog front end disposed in the tub and comprising an amplifier having inputs coupled across the resistor and a charging circuit configured to bias the analog front end and the tub to a bias voltage that is a predetermined offset voltage greater than a common mode voltage associated with the resistor. In embodiments, the analog front end is biased to a first bias voltage and the tub is biased to a second, different bias voltage.

A shunt is composed of multiple pieces with at least some of the pieces being connected by a conductive channel that provides uniform flow of current. The conductive channel may be a recess, raised portion, stand-alone component, or other channel that directs current to flow from one piece of the shunt to another piece in a uniform manner, resulting in an accurate current reading for the shunt. Further, the shunt may include multiple pieces that are composed of different materials.

An aerosol-generating device is provided for alternative use with at least a first type and a second type of inductively heatable aerosol-generating articles including a susceptor arrangement, the device including: a receptacle to removably receive at least a portion of the first or the second type of article; an inductive heating arrangement to generate an alternating magnetic field for inductively heating the susceptor arrangement when the article is received by the receptacle; and a controller operatively connected to the heating arrangement and being configured to: determine a first value and a second value of an electrical property of the susceptor arrangement being reached during heating of the susceptor arrangement in use of the device when the article is received by the receptacle, determine the difference between the first and the second values, and identify an article type of the article received by the receptacle based on the determined difference.

The present disclosure provides a current detection system, method and device. The current detection system includes a management unit and a current detection device that is connected with the management unit. The current detection device includes a shunt-type current measurement unit, an open-loop Hall-type current measurement unit and an isolation power unit.