Tag Archives: monitor

NXP is aiming at ASIL D safety approval with a vehicle battery junction box controller IC, intended to fire the pyrotechnic disconnect switch during a serious fault, as well as report faults over a serial bus. MC33777A, as it will be known, redundantly measures currents, voltages and temperatures, then deduces situations – a short circuit or a crash, for example ...

Diodes has created a range of precision current shunt monitors that have a -0.3 to 26V common-mode sense range irrespective of supply voltage, allowing both high-side and low-side measurement – and a reference pin is provided for bi-directional current measurement. Called the ZXCT21xQ family, there are six gain options: 50V/V  ZXCT213Q 75V/V  ZXCT215Q 100V/V  ZXCT214Q 200V/V  ZXCT210Q 500V/V  ZXCT211Q 1kV/V  ...

Sick of Hertfordshire has introduced a vibration, shock and temperature monitor for measuring signs of approaching machine failure. The harsh environment MPB10 Multi-Physics Box bolts on to industrial machines, including electric motors, pumps, fans and conveyor systems. “The MPB10 provides service data to enable predictive maintenance practices that can improve plant availability, maximise operating life, protect product quality and protect process ...

Infineon has introduced a chipset to implement its take on electric vehicle battery stack monitoring, using a combination of capacitive and transformer coupling to get cell charge-state data safely across the hundreds of volts present. There are two chips: TLE9012DQU, the Li-ion battery monitoring and balancing IC, which can handle up to 12 cells in series, and TLE9015DQU which interfaces a microcontroller ...

Anritsu has created the MS27201A remote spectrum monitor series, that includes a 43.5GHz version for new satellite downlink bands. A 110MHz measurement bandwidth supports common satellite downlink spans, DANL (displayed average noise level) is -164dBm and the typical TOI (third-order intercept point) is +20dBm. Other MS27201A versions work up to 9GHz or 20GHz. All work down to 9kHz. “Combining RF performance ...

Renesas has introduced a battery pack monitor for long strings of cells that uses an ac-coupled bus to solve the thorny problem of passing data up and down the line. At the same time, it revealed a high-side battery protection and monitoring IC for 4S to 16S cell battery packs. RAA489204 for long strings Stackable up to 30 ICs Up ...

Analog Devices is aiming at wearable patient monitoring devices with an analogue front-end for four vital signs: electrocardiogram, heart rate, blood-oxygen saturation and respiration rate. The chip, MAX86178, does this with three channels, one each for: photodiodes (optical PPG for blood oxygen and heart rate), voltages (electrocardiogram (‘ECG’ or ‘EKG’) and alternative heart rate) and bio-impedance (‘bio-z’ for respiration rate) Optical ...

Analog Devices has created a battery monitor for primary (non-rechargeable) cells that counts coulombs and can handle a pair of output supercapacitors. Called LTC3337, “the patented infinite dynamic range coulomb counter tallies all accumulated battery discharge,” boldly claimed ADI, Coulomb counter accuracy is constant down to no load.” However, Coulomb counting accuracy, according to the data sheet, is ±5%. To spread ...

Microchip has introduced some high-side automotive current sense amplifiers, claiming that they have the lowest offset for AEC-Q100 Grade 0 qualified parts. Called MCP6C02, the Grade 0 part comes in a 3 x 3mm 8 pin VDFN package with wettable flank plating and has a maximum offset error of ±12µV, while the 6pin SOT-23 version is AEC-Q100 Grade 1. This max ...

Aiming at vibration-based equipment condition monitoring, Analog Devices has introduced a kit for hardware, software and algorithm development that will interface with data analysis tools including Matlab and Python. Called CN0549, its hardware includes a dc – 10kHz MEMS vibration sensor board (see photo), a characterised mounting cube for the sensor, a data acquisition system reference design (top board) and an embedded ...