Xunwei Yu and Sungkeun Lim, Renesas Electronics Corporation The USB-C interface is revolutionizing the way we charge our electronics devices. Its USB Type-C connector cable slides right into your smartphone or ultrabook no matter what orientation you use. Physically, the Type-C connector is both bidirectional (either end of the cable can be inserted into either […]
Measuring signals on transmission lines
Reflections typically arise when a beam of light strikes a polished flat reflective body whose surface is perpendicular to the beam of light. Then the transmitted light minus loss in two-way transit, appears at the source. This is similar but not exactly equivalent to an electrical signal traveling through a conductive medium that has an […]
When tin whiskers spontaneously erupt
First reported in the 1940s, Metal Whiskers (MW) are spider-web-thin conductive filaments that sprout (most often) from tin, zinc, and cadmium metal surfaces. A “tin whisker” can be manually formed with poor soldering techniques, but metal whiskers actually grow on their own, too. They are a phenomenon that many engineers are not aware of. Silver, […]
Load pull for RF devices, Part 1: What and why
Impedance matching between RF stages has always been a priority to ensure maximum transfer of RF power along with minimal RF-power reflections. Although most RF systems are designed for nominal 50-ohm input and output impedance (and 75-ohm for cable TV), the reality is that many components do not present that preferred 50-ohm impedance due to […]
What is the COM Express standard?
The COM Express open standard, initially released in 2005, covers Computer on Modules (CO) and Single Board Computers (SBCs) under the auspices of the PCI Industrial Computer Manufacturer’s Group (PICMG), a consortium of equipment and system vendors, component suppliers, and end users for the embedded computer market. Open standards are not open source, but they […]
A DIY vector network analyzer? Yes, there is such a thing
Believe it or not, there’s a do-it-yourself vector network analyzer that can be constructed with a few readily available parts which also can provide measurements accurate enough to be useful in professional work. The basis for the VNA is a chip from Mini-Circuits. Mini-Circuits president Ted Heil explained the ideas behind the DIY VNA in […]
Microcontroller Top Talks in June on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around microcontrollers. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com. Interfacing LM35 with 8051 using ADC0804 to display temp – I am using the LM35 temperature sensor with 8051 using ADC0804 to […]
Power Electronics Top Talks in June on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com Design precaution of 78xx and 79xx series regulators – I am looking into using these old regulators. My main concern is the […]
Analog Top Talks in June on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around analog ICs and analog design. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com. Output impedance of asymmetric differential pair – Do you guys have any idea how to select MOSFET sizing of […]
Here’s what happens when lithium-ion batteries are drastically overcharged
Lithium batteries have a high energy density so they can store a lot of energy in a small volume. But they can go up in smoke when bad things happen. Recently we recorded a short video to show what can happen during one of those bad things – overcharging. Excessive charging can bring on thermal […]
- 1
- 2
- 3
- …
- 75
- Next Page »
@eeworldonline
EE World Online
@eeworldonline