Testing

Techniques for accurate power rail testing have to be refined constantly. A new, widely unknown approach combines waveform histograms and free run trigger mode.

This article summarizes the changes in IEC 60601-1-2:2014 Amendment 1:2020 and describes how to conduct proximity magnetic fields immunity testing as required by the standard.

Ethernet solutions have been popular in industrial and computing applications for several decades but were not widely adopted in the automotive area. Automotive ethernet enables fast and robust data communication, with high flexibility in bus topologies for multiple electronic control units (ECUs).

This article addresses China’s latest requirements, including technical details, for 2.4 GHz and 5 GHz equipment.

Solar Electronics founder Al Parker used to say about EMI testing, “There’s more than one way to skin a cat.” Here are a couple more.

The state of health of cells in a battery pack under operating condition is difficult to obtain through existing IEC and ISO standard methods under laboratory conditions. However, a cell state of health (SOH) profile shall be able to establish by the comparison of electro-impedance spectroscopy (EIS) generated statically versus dynamic operating data retrieved by battery management system (BMS) communication interface as fragments of EIS.

Part 2 of this article summarizes the results of recent testing conducted by the author on the shielding effectiveness of screened cables up to 2.8 GHz.

Cell-level analysis and testing for batteries used in electric mobility applications can help mitigate risks to application performance and long-term reliability.

Part 1 of this two-part article explores some basic rules for terminating cable shields. Part 2 of the article will appear in our October 2022 issue and will summarize the results of recent testing conducted by the author on the shielding effectiveness of screened cables up to 2.8 GHz

The Internet of Things (IoT) is moving into more mission critical applications, especially with connected medical devices. Engineers can reduce the risk of premature battery failure by following the practical methods described in this article.