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 […]
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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 […]
What is DICE architecture?
DICE stands for Device Identifier Composition Engine, and it is a security standard created by the Trusted Computing Group (TCG) which has been addressing security issues for years. TCG announced the establishment of DICE Architecture, or DICE Architecture Work Group to address the need for increased security in the Internet of Things (IoT) therefore targeting […]
Handheld measurement instruments let IoT network operators check conditions in the real world
New Nemo IoT Meter and Nemo Handy IoT instruments enable network operators and service providers to actively test networks in the field, ensuring the coverage and service quality of networks in mission-critical and consumer-based Internet of Things (IoT) applications, accelerating installations, and speeding time-to-revenue. “The availability of LTE network coverage does not necessarily mean that […]
Measuring phase noise and jitter
Generally, whether one speaks of phase noise or jitter depends upon whether they happen to be a radio frequency or digital systems engineer. Both phenomena are random fluctuations of a time-domain waveform in an oscillator or in a clock. Phase noise is best represented in the frequency domain. It is usually defined as the spectral […]
Power outlets may eventually discern bad power spikes from benign ones
Researchers at the Massachusetts Institute of Technology say they’ve developed a “smart power outlet” that can distinguish between benign electrical spikes from common household appliances and dangerous arcs that could lead to a fire. They say their device can also be trained to discern the appliance plugged into a particular outlet, such as a fan […]