TiePie releases instrument to wirelessly synchronise multiple oscilloscopes

The WCMI-8 is a long range wireless multi instrument synchronisation module, capable of operating over 400m. It allows multiple scopes to be combined into a single instrument, said Dutch company, TiePie Engineering.

The WCMI-8 module can operate with the WiFiScope and Handyscope series 5 and 6 instruments. The WCMI-8 module is placed on the extension connector at the rear of each oscilloscope and the multi-channel oscilloscope software automatically

detects how many instruments are equipped with a WCMI-8 module. All detected oscilloscopes, connected via WiFi, LAN or USB, are combined to a single oscilloscope with a total number of channels that equals the sum of the number of channels of the detected oscilloscopes. The WCMI-8 module has an internal automatic time synchronisation system that takes care that all sample clocks of the oscilloscopes are synchronised. When a trigger occurs on one of the selected channels, all oscilloscopes will be triggered simultaneously and all signals will be synchronously visible on the display.

The wireless multi instrument synchronisation modules can be used both indoors as in the open field. They have a built-in RSSI meter to check the receive signal strength of each module.

For synchronous measurements at multiple locations that are up to several hundred meters apart, or fully galvanically isolated from the computer and each other, TiePie recommends using the WCMI-8 module, in combination with a TiePie engineering oscilloscope. High speed sampling at 100 Msamples per second and 16bit high resolution measuring are supported by the WCMI-8 module. As there is no need for long cabling between the scopes and the computer and with no complicated setup. TiePie said installation is simple and hassle free installation.

Founded in 1987, the Dutch company TiePie Engineering manufactures computer controlled test and measurement equipment, such as WiFi, LAN and USB pscilloscopes, arbitrary waveform generators, function generators, spectrum analysers, protocol analysers, data loggers and multimeters. Products offer features such as real time SureConnect connection testing, SafeGround protection and combining multiple instruments using TiePie’s CMI bus. TiePie’s compact oscilloscopes, function generators and other data acquisition products are used worldwide in many markets, including industrial process automation, automotive test and measurement, service departments, medical applications, research centers and educational institutes.

http://www.tiepie.com

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Power PROFET + 12V switch family offers new mount and enclosure options

Relays and fuses cannot meet the requirements of modern E/E vehicle architectures, asserted Infineon Technologies and partial or complete electrification of the primary and secondary power distribution must be taken into account. The company has launched low Ohmic high side switches in a TO-leadless package, the Power PROFET™ + 12V switch family.

The switches allow for new mounting locations and new enclosure options, enabling the next generation of decentralised power architectures with high efficiency. There are two variants: the BTS50005-1LUA with an on-resistance (RDSon) of 0.6 mOhm and the BTS50010-1LUA with an RDSon of 1.0 mOhm for lowest power losses. They are designed to control high current applications, especially in hot cabin and engine compartment environments for demanding high inrush currents, such as in heaters, pumps and fans. They provide more than 1,000,000 switching cycles compared to, for example, in average 200,000 switching cycles of a relay.

The switches can replace electromechanical relays, fuses and discrete circuits in power distribution boxes and other applications up to 65A in a 12V electrical system. The switches offer built-in protection and diagnostic functions, such as short circuit, over-current and over-temperature protection. They provide a fault signal via the diagnosis enable pin to a connected microcontroller for advanced diagnosis in power distribution modules. They are robust, offer protection and diagnosis features to improve the reliability of the entire vehicle by preventing failure modes in the power board net.

The smart power switches are housed in an eight-pin TO leadless package, reducing the footprint by 23 per cent compared to D2PAK while providing similar thermal performance. The accuracy of the load current sense has been improved down to five per cent and can be evaluated by reading an analogue voltage on the IS pin.

In addition, the switch family is PRO-SIL ISO 26262-ready and comes with a safety application note supporting the evaluation of hardware elements according to ISO 26262.

To enable easy design-in process of Power PROFET™ +12V devices, the family is integrated into the Infineon Smart Power Switches Intrinsic Fuse Tool and the Infineon Smart Power Switches kILIS Tool, both available in the Infineon Developer Center. The Smart Power Switches Intrinsic Fuse tool allows to calculate the intrinsic fusing characteristic based on the embedded overtemperature protection of the respective selected product under certain boundary conditions. The kILIS tool is used for calculating and visualising the range of the sense current for specific load currents on the respective selected product, taking the kILIS rate, sense resistor and ADC tolerances into account.

The Power PROFET + 12V switches BTS50005-1LUA and BTS50010-1LUA are in production. An Arduino Shield (BOARD BTS50005-1LUA) is also available.

Infineon added that it will expand the family with devices for 24V and 48V power net. Samples are available on request.

http://www.infineon.com/powerprofet

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Super-Short Channel technology protects mobile devices’ batteries

Super-Short Channel is Magnachip’s latest design technology to reduce MOSFET  resistance by shortening the channel length between the source and the drain. It is used in its seventh generation MXT LV MOSFET range extending its portfolio for battery protection circuits of mobile devices.

The Ron of these new MOSFETs has been reduced by 24 to 40 per cent, compared to previous generations, improving battery performance with low power losses when a battery is charging or discharging.

In addition, Magnachip provides customised design service, based on the application specifications and battery capacities. As a result, the company said, the sizes of the MOSFETs can be reduced by five to 20 per cent respectively.

Magnachip said it provides technical capabilities, flexible design and compact size options, for the extended MXT LV MOSFET line-up to satisfy the various technical requirements of a range of mobile devices, from premium foldable phones to wireless earphones.

The company has released five new MXT LV MOSFETs for battery protection circuits in 2023.

The 12 V MDWC12D028ERH, MDWC12D044E and 22V MDWC22D020E MOSFETs are available in a WLCSP. The 24V MDW24D048E and MDW24D150E are supplied in wafer form.

Magnachip Semiconductor designs and manufactures analogue and mixed signal semiconductor platform solutions for communications, IoT, consumer, computing, industrial and automotive applications. The company owns a portfolio of approximately 1,100 registered patents and pending applications.

http://www.magnachip.com

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Coin cell battery life and power booster reduces waste in the IoT

The NBM7100 and NBM5100 are battery life boosting ICs designed by Nexperia to extend the life of a typical non-rechargeable lithium coin cell battery by up to a factor of 10 compared to competing solutions. It also increases peak output current capability by up to 25x compared to what a typical coin cell can deliver without a battery booster, said the company.  This extension in working life will significantly reduce the amount of battery waste in low power IoT and other portable applications, claimed Nexperia. It will also make coin cells a viable power source for applications which could previously only operate from AA or AAA batteries.

CR2032 and CR2025 lithium coin cells have high energy density and a long shelf life, which means they are typically used in low power applications, including devices with low power Wi-Fi, LoRa, Sigfox, Zigbee, LTE-M1, and NB-IoT transceivers. The batteries have relatively high internal resistance and chemical reaction rates, however. This can reduce their usable capacity when under pulsed-load conditions. Nexperia designed the NBM7100 and NBM5100 containing two high efficiency DC/DC conversion stages and an intelligent learning algorithm.

The first conversion stage transfers energy from the battery to a capacitive storage element at a low rate. The second stage uses the stored energy to provide a regulated (programmable from 1.8 to 3.6V) high pulse (up to 200mA) current output.

The intelligent learning algorithm monitors the energy used during repetitive load pulse cycles and optimises first stage DC/DC conversion to minimise the residual charge in the storage capacitor. In standby state, these devices consume less than 50nA.

Both devices are specified over a temperature range of -40 to +85 degrees C, making them suitable for commercial indoor and industrial outdoor environments. A low battery indicator alerts the system when the battery reaches its functional endpoint. Brownout protection inhibits charging of the storage capacitor when the battery is near the end of its life.

A serial interface is included for configuration and control by a system microcontroller. This is I2C in NMB7100A and NBM5100A and serial peripheral interface (SPI) in NMB7100B and NBM5100B versions.

The ICs can extend the lifetime of energy dense lithium primary batteries, including coin cells, lithium thionyl (ex: LS14250 1/2 AA) and emerging paper printed battery types.

The NBM5100A/B additionally includes a capacitor voltage balancing pin for super-capacitor-based implementations.

The NBM5100A/B and NBM7100A/B battery boosters are available in a small DHVQFN16 package measuring 2.5 x 3.5 x 0.85mm.

http://www.nexperia.com

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