Jan 16 12:46 PM PDT

Power over Ethernet presents circuit-protection challenges

Power over Ethernet, or PoE, has become a popular way to power devices, such as security cameras and IP phones, by safely transferring electrical power over standard data cables. Some companies are even suggesting that PoE would be a great way to connect and power the advanced driver assistance systems currently under development by the automotive industry.

When implemented properly, PoE provides power to network devices without affecting network performance. PoE offers users a number of advantages. For example, it eliminates the need for electrical outlets at remote locations, greatly simplifying system installation. Providing backup power is easier, too, as backup power is needed only at a single point.
Keep reading…

Jan 08 09:20 AM PDT

The ESD Association helps your electronics avoid getting zapped

For most people, that little zap that you get when you get out of your car on a cold winter’s day, or the little spark that jumps from your finger after walking across an acrylic or wool carpet, is just an annoyance.

If you’re an electronics professional, however, ESD, or electrostatic discharge, is more than just an annoyance. It can be a device killer. Walking across a carpet, for example, can build up a charge of 30,000 volts or more, if the relative humidity is especially low. When that charge gets discharged into an integrated circuit, it can destroy the device. This is not something that most electronics engineers learn about in class. Keep reading…

Sep 06 02:43 PM PDT

New HDMI 2.0 Specification Announced

This week the HDMI Forum announced the long awaited HDMI 2.0 spec. The spec was originally slated to be released over a year ago but after some delays it’s finally available.

The new spec brings support for higher-resolution 4k TVs, supports bandwidth of up to 18 Gbps. Although the previous version of the spec did support 4k TVs there were some limitations. At a resolution of 3840×2160 the frame-rate was limited to 30 frames per second (fps), and at 4096×2160 you were limited to 24 fps. With the new spec 4k video as up to 60 fps is now supported, and it supports up to 32 audio channels. What you will do with those 32 channels well that’s up to you. Keep reading…

Aug 28 02:06 PM PDT

Staying Connected…

As a Sales manager I have spent most of my career traveling to meet with customers and distributors. On one of my last trips I was meeting with other road warriors, and we started talking about the electronic gadgets we carry – and how addicted we are to being constantly connected. Keep reading…

Jul 24 12:49 PM PDT

Webinar: Circuit Protection & Connectivity for USB Ports

TE’s own Barry Brents and Luis Navarro will be holding a webinar covering Circuit Protection and Connectivity for USB Ports. You can catch the webinar on Wednesday, August 21, 2013 9:00 AM CDT. You can find more information about the webinar after the break or by visiting the event page on Element 14. Keep reading…

Jun 07 09:30 AM PDT

Battery Overcurrent and Overtemperature Protection with MHP-TA – TE Talks

Check out the latest edition of TE Talks with Barry Brents. In this video he discusses the MHP-TA device, a new overcurrent and overtemperature protection device for lithium-polymer batteries.

Check out the video on YouTube Keep reading…

May 23 11:17 AM PDT

Check Out My Design News Article on Protecting Electronic Ballasts

Lighting designers need to protect electronic ballasts used in fluorescent lighting from reaching their end of life (EOL), as specified by the IEC 61347-2-3 standard. See my article in Design News magazine about how our go-to protection product at TE Circuit Protection for over 30 years – the PolySwitch PPTC (polymeric positive temperature coefficient) device – can be used for ballast protection. Specifically, my article shows how to connect a resettable PolySwitch device in the resonant circuit, in series with a resonant capacitor, to help achieve abnormal-state protection. Keep reading…

Mar 21 10:44 AM PDT

More on Battery Protection

I recently came across two interesting blog posts on The Connecting Edge technology forum, about lithium batteries, the ubiquitous and sometimes misunderstood technology that keeps popping up in the news. The posts, called “The Care & Feeding of Lithium Batteries,” are by Todd Marcucci, VP Research & Development, Good Earth Energy Conservation, Inc.

The first post (Part 1, March 5) offers a helpful primer on the types of existing technologies since, as Todd says, many design engineers aren’t aware of all the lithium battery chemistries that are available. But it was the second post (Part 2, March 6) — which points out differences between rechargeable batteries — that really caught my eye. In it he concludes: “In all, lithium chemistries offer some great advantages over others, but at a cost of greater care and management.” This got me thinking about circuit protection for lithium batteries. Keep reading…