Test & Measurement

August 2020
Power Electronics Enables Test and Measurement Developments
As someone involved with the semiconductor world for several decades, I’d describe the relationship with the test companies like this: We need better test equipment performance to assist in advancing power electronics technology and the test equipment industry is benefitting from power electronics developments to
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Date:
08/31/2020
Optical Sensors Help Create a Safer, Touch-Free World

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Figure 1: A matrix type of sensor such as Omron’s D6T 4x4 makes it easy to separate human and background temperatures

No-contact sensors provide the solid basis to solutions for access control and body temperature measurement – both of which provide countermeasures to the Covid-19 threat. Recent developments make these vital devices more dependable and reliable. Such sensors can also replace ‘touch-based’ switches to op
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Date:
08/31/2020
Bipolar Power Solutions for Test and Measurement Systems

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Figure 1. Power solution for a nonisolated bipolar supply system (±15 V and ±5 V) with low supply ripple

In these high-precision test and measurement applications, generating system supplies that are bipolar and/or isolated poses a challenge to system designers in terms of board area, switching ripple, EMI, and efficiency. Data acquisition systems and digital multimeters require low noise supplies in order to deliver the
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Date:
08/31/2020
Electrical Safety Testing of Cables and Connectors

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Figure 1. Voltage is applied to one conductor at a time while adjacent conductors are bundled. Resistance is calculated based on leakage current

Electrical safety (hipot) testing is critical in ensuring compliance with a host of electrical safety standards and in confirming the assembled product is free from electrical or mechanical defects. Hipot testers are used to measure leakage current and insulation resistance between components and connections, co
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Date:
08/31/2020
Hybrid and Electrical Vehicle Powertrain Testing

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Figure 1. A Hybrid Vehicle Component Stand

Over the past decade, most transportation markets, from automotive, to military, aircraft, and even space systems have seen a tremendous surge of interest in hybrid and electric vehicle technology. To gain the promised efficiency benefits and green profile of these vehicles, it is important to conduct driveline an
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Date:
08/31/2020
£1.68M UK government grant for Bizen transistor technology
The transistor process technology will be the foundation for the success of British and worldwide industries in all sectors. The grant has been made by the ‘Driving the Electric Revolution Challenge’ program, part of UKRI’s Industrial Strategy Challenge Fund. The aim of the initiative is to position the UK
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Date:
08/05/2020
Robust Connection for Power
The new connectors are available in various blade designs, orientations and dimensions and are intended for current flows up to 16 A and working voltages up to 300 V. Straight or angled contacts in various numbers are available — for the common 6.3 mm blade receptacles but also for the 2.8 mm version. Fo
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Date:
08/05/2020
New Video Shows How a Zero Flux Current Transducer Works
The transducers can be used for applications such as power analysers in EV production, medical equipment such as MRI scanners and power supplies for particle accelerators. The video explains zero flux technology, also called ‘fluxgate’ and how it works, including the use of a closed loop which balances opposi
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Date:
08/05/2020
Integrated Isolated RS485 + Isolated Power Transceivers Cut Design Time
These new parts provide low radiated emissions and enable solutions that meet EMC compliance with fewer board spins and budget overruns. The transceivers’ simplified PCB layout and small SOIC form factor pack more functionality into space constrained applications than the previous generation as well as current
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Date:
08/05/2020
3kW Transient Voltage Suppressor Diode Array Family
The MDA3KP is a 3kW diode family of more than 25 products with different screening levels, polarities and qualification standards. Microchip’s MDA3KP TVS diode array family – the only available technology offering a comprehensive voltage range tested to a high reliability standard and qualified based on the MIL-PRF-1
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Date:
08/05/2020
Performance improved and space gained
For safe use in industrial applications, Würth Elektronik has now published a circuit layout with transformers as galvanic isolation. The solution has an isolation of 1.5 kV/60 s and is therefore fully suitable for industrial applications, unlike previous circuits that use two 50 V capacitors as galvanic isolation. Wü
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Date:
08/05/2020
Inexpensive and easy to assemble LIF connector
Small and flexible flat-ribbon cables are widely used in LCD screens, board-to-board connections for medical equipment, test and measurement devices, industrial applications, entertainment electronics, and the broadest conceivable range of other types of devices. In many of these applications, it’s not important
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Date:
08/05/2020
Multilayer Ceramic Capacitors work up to 150°C
This product lineup is compatible with AEC-Q200, a reliability test qualification standard for automotive passive components. We have sophisticated various types of elemental technologies nurtured by us to improve the temperature characteristics of X7R (operating temperature range: -55 to 125°C) in our  onv
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Date:
08/05/2020
New Indicator Buzzers Feature Tight Frequency Tolerances
Thanks to their narrow frequency range, these audio indicators offer added frequency stability that is not affected by temperature or voltage, while providing more consistent tones and sounds in an end application. This makes them a highly reliable solution for medical, smart home, and security applications that req
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Date:
08/05/2020
Renesas Expands RF Portfolio for 4G/5G Infrastructure
Renesas Electronics Corporation strengthened its robust RF Amplifiers portfolio with the new F1490 delivering much lower quiescent current (75 mA) than competitive solutions. The F1490 is a second-generation high-gain, 2-stage RF amplifier that covers the key sub-6 GHz 5G frequency bands from 1.8 GHz to 5.0 GH
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Date:
08/05/2020
Digi-Key Launches Marketplace Initiative for U.S. Customers
Digi-Key Electronics is pleased to formally announce the next level of providing a single source for all aspects of technology innovation with the launching of the Digi-Key Marketplace initiative. The Digi-Key Marketplace now gives customers access well beyond that – including bare PCB boards, industrial automatio
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Date:
08/04/2020
Mobile Surface Measurement System for Small, Big Workpieces
Mahr, Inc., introduced the new MarSurf M 310 mobile surface measurement system. The successor to the popular MarSurf M 300, the all-new M 310 brings ease-of-use to new levels with a large, illuminated, rotatable 4.3” high-resolution touch screen built right into the unit. It was designed to provide high-precision me
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Date:
08/04/2020
Low Resistance Ohmmeter Delivers Reliable Results
Megger now offers a digital low resistance ohmmeter that can deliver reliable results when using long test leads. The DLRO2, a 2 Amp handheld tester, is ideal for use in production line testing and industrial applications. This robust and intuitive handheld instrument offers a ‘difference meter’ that allows fo
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Date:
08/03/2020
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