Technical Features

Current
Effective USB 3.1 Filtering and Protection

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Figure 1: USB-C dongle used to demonstrate USB 3.1 filtering and protection

The USB connector and standard are one of the most widely implemented and successful interfaces ever used. The applications are commercial and industrial, and both have been pushing the standard to be faster. The USB standard has been updated to version 3.1. This standard increases data transfer speeds to 5
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Date:
07/23/2019
Are you SiC of Silicon? â€

Anup Bhalla, Vice President Engineering, UnitedSiC

Using Silicon Carbide (SiC) FETs in Data Center power supplies and telecom rectifiers With the deployment of 5G Networks, we can expect a massive build out worldwide, requiring many high-quality telecom rectifiers to provide the needed power.  To meet the need for improved efficiency,
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Date:
09/16/2019
Wearable Medical Devices Need Sophisticated Power Management

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Figure 1: MAX32660 block diagram. (Source: Maxim Integrated)

Ultra-portable wearable monitoring devices allow patients with long-term and chronic illnesses to integrate their monitoring with their daily lives, allowing a high degree of care to be delivered with more convenience than ever before. However, powering these devices for long periods without resorting to a bulky
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Date:
09/04/2019
Power Design Challenges in 1500 VDC Photovoltaic Systems

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Figure 1. Key functions of a multi-MW grid-tied PV generator

Although government subsidies for photovoltaic (PV) power generation tend to come and go, installed capacity continues to increase. From a base of 178 GW in 2014, global capacity is predicted to hit 540 GW in 2019.Europe has the largest share, projected to reach 158 GW in 2019, although growth is faster in other
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Date:
09/04/2019

Transitioning from IEC 60950-1 and IEC 60065

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Figure 1: The HBSE three-block models.

IEC 62368-1-based standards will soon be replacing a number of existing safety standards for IT, communication and audio-visual equipment. And in a move that’s proved a significant boon to product vendors with global customer bases, the US and EU regulators have aligned the date when the new standards replace
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Date:
09/03/2019
Matching Gate Drivers to Enhancement Mode GaN Transistors

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Figure 1: Inductance common to source and gate drive causes voltage transients

Gallium Nitride (GaN) HEMT is the enabler for demonstrations of power converters with end-to-end efficiencies greater than today silicon-based solution, comfortably exceeding the most stringent 80+ spec for server and cloud data center or EU Code of Conduct Tier 2 standard for USB PD external adapter. 
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Date:
09/03/2019
Power Analyzers: A Designer's Swiss Army Knife in a Box
The Swiss Army Knife (Figure 1) is a whole lot more than a knife. True, it starts out as a basic pocket knife but then it adds everything from screw-drivers, bottle opener, corkscrew, scissors and a half-dozen other useful tools. This venerable pocket tool has been used in numerous analogies for equipment
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Date:
09/03/2019
Avoiding AC Power Source Mistakes

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Figure 1: Constant voltage mode operation

This article explains the various functions available to the user of a programmable AC power source to protect the unit under test against various overcurrent and overpower conditions that could cause it to get damaged.  An overview of commonly found protection modes is provided first to set a baseline,
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Date:
09/03/2019
Power Integrity Verification with an Oscilloscope

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Figure 1: Two R&S RT-ZPR20 power rail probes connected to an R&S RTO oscilloscope. One is connected to a coaxial cable soldered directly into the circuit, while the second has an attached browser module for quick overview measurements. Source: Rohde & Schwarz

In the worst case, advanced electronic designs can have up to a hundred power supply networks with different DC voltages. Each power supply network has its own requirements for DC voltage accuracy and maximum allowable disturbance signals. Unwanted disturbance signals on the DC power supply network can lead
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Date:
09/03/2019
Thru-hole Resistors Capable of Handling up to 7 KV
RALEIGH, NC - The RNV Series from Stackpole offers a robust ¼ watt size resistor capable of handling up to 7KV under IEC 60065.14.1 standard testing. The proprietary manufacturing and materials allow the RNV to withstand 1000 hours at 40 degrees C, 90% relative humidity with cycled power
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Date:
09/03/2019
Solving the Critical End of (Battery) Life for IoT Devices

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Figure 1: Event-based power analysis on Keysight X8712A IoT device battery life optimization solution

"My battery is low and it's getting dark” was the slightly-massaged final message sent from Oppy, NASA’s Mars rover to mission control in February of this year, causing a worldwide social media sensation. It’s an issue that will be increasingly common over the next decade, as billions of
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Date:
09/03/2019
Generation of Low-Noise Voltages

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Figure 1. A passive filter at the output of a switching regulator

Linear regulators are outstanding for filtering voltages generated by switching regulators. Switching regulators always have a certain amount of output voltage ripple. In many applications in which very small signals are processed, this ripple can cause interference. Passive components are regularly used to
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Date:
09/03/2019