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Technology
Managing Your Audio Power Supply Designs: Tips for Circuit Design
As I get older, I suspect I’m gradually getting deafer. My hearing was pretty sharp during my teenage years but these days, I miss out on conversations and need to frequently ask people to repeat themselves. Perhaps my hearing ability is deteriorating due to age; however, when I hear static noise creeping out of an amplifier, I know to trust my ears. In electronics, the power supply of audio circuits can mean the difference between perfect audio
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Choosing the Right RFID Card Technology For Your Embedded System
As a pure introvert who fears small talk, I absolutely dread networking events. Besides maintaining endless empty chatter with strangers, picking out the best attire is challenging, especially considering my dreadful fashion sense. Thankfully, I’m much better at choosing the right type of Radio Frequency Identification or RFID card technology for my embedded system projects. What is an RFID Card? In the simplest sense, an RFID card is a token
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Use Unique ID EEPROM in Your Embedded System to Prevent Design Counterfeiting
There’s a saying that smart people don’t always finish the race first. In college, I remember some classmates copying my assignments, only to end up getting better scores than I did. Being smart didn’t necessarily guarantee me the top grades in college and watching others achieve success based on my ideas became demoralizing. The business world is similar; it isn’t uncommon for companies to copy concepts that work well for their competitors and
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Internal Versus External Surge Protectors: What’s Best for Total PCB Protection
Whether its internal or external surge protection, your electronics device needs something to keep it healthy throughout the lifespan.
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Computer Fault Finding Checklist: Troubleshoot a Faulty Embedded System in Your PCB
Kids these days are much smarter than we were. When I was six, all I cared about was watching Sesame Street every evening. My son, on the other hand, regularly searches for his favorite cartoons on Youtube and asks for the correct phrases to type in to receive the exact results he’s looking for. Even at such a young age, he understands that asking smart questions leads to quicker, and more efficient, solutions. Although finding the right terms to
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Keep the Petals on: Optimizing Daisy Chain Wired Communication
As a child, I was fascinated by trains. I remember staring down an empty railway for hours, simply waiting for a train to pass by. From my youthful perspective at the time, it was magical how the train never fell off the track despite essentially being a moving chain consisting of many . Although I eventually outgrew my obsession with trains, I became enamored by the daisy chain style of wiring for communication in electronics. As my career as an
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DC Power Supply Protection from Unexpected Damage and Inconvenience
When it comes to parenting, I might not be the best role model. This isn’t because I don’t take good care of my only son; it’s because I’m the stereotypical overprotective dad. I fuss over tiny bruises and rush for a digital thermometer at the slightest hint of a fever. Unable to stop worrying about how my son will adapt and get along with other preschoolers, I even become an occasional nuisance at his nursery. Over time, I’m starting to realize
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How to Interface an LED With an 8051 Microcontroller: Processes and Applications
When my professors saw my first electronics project, they weren’t too hopeful about my future as a design engineer. With hundreds of jumper wires clumsily soldered onto a prototyping board, my feeble attempt at making a ham radio barely passed as a joke. I was learning about the dot matrix, pic microcontroller, and RGB LED lights. Everyone has to start from the beginning! Thankfully, I’ve come a long way since those days. If you’re starting your
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Power Consumption Tips: What are Ways to Reduce Power Consumption in an Embedded System?
For years, I always forgot to turn off the lights and fans at my house. Despite initially denying that constantly using these appliances significantly increased my electricity usage, I eventually broke my bad habit and began turning off every little switch. After all, being more prudent about my electricity usage reduces my monthly bills and promotes a greener earth. Unfortunately, minimizing system power consumption in an embedded system
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Rigid PCB Vs Flexible PCB: How Adaptable is Your Design Approach
After working on multiple projects for a demanding client, I often relieve my stress by kicking it out at a local martial arts gym. When I was a teenager, I was quite flexible and had no trouble landing kicks. These days, however, my kicks are somewhat restrained by my rigid legs; I’m simply not as flexible as I used to be. Of course, flexibility and rigidity are important concepts outside of the martial arts gym as well. While designing PCBs
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How to Connect Two PCB Boards With a Bus: Do Not Pass When Flashing Yellow
During my school days, my favorite time of the day was when the bell rang and we were free to go home. While waiting for my school bus, I spent time messing around with my friends and would be so engrossed in playing that I’d occasionally miss my bus. Naturally, my mom wasn’t too thrilled about having to pick me up after a busy day of work. Missing the school bus, fun as it may have initially seemed, resulted in some serious grounding. Without
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Picking the Right Bluetooth Antenna Types for Your PCB Design
Have you ever tried tracing your wireless usage? Bluetooth PCB antenna design has gotten our bluetooth electronics everywhere by allowing devices to connect to a standardized matching network. For instance, I am streaming music from my phone to wireless headphones. Later, I’ll hop into my car and take phone calls through my hands-free computer system. Then I can get home and talk to my home-assistants to tell me the weather, set dinner timers
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Suppress Noise and EMI in Your PCB With the Right Analog Filter Design
The electronics industry continues to pack more capabilities onto smaller PCBs and devices are being run at lower power and at higher frequencies. Noise suppression becomes even more important as operating frequencies rise and signal levels fall, this becomes more manageable with an EMI filter for noise on a PCB design. Adding filtration to your PCB designs can enhance signal integrity in EMI-prone environments with large stray magnetic fields
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Avoid Signal Integrity Loss While Using a Fanout Strategy in Your PCB
When I was much, much younger, I looked at the pin layout on the back of a processor and wondered how anyone can possibly route all of those electrical connections on a PCB. I didn’t know much about signal integrity, of fanouts on PCBs then but fast forward fifteen years and now I get to layout those traces on PCBs. Fanout is a technique where short traces and vias are used to connect inner rows of pins on high pin-count ICs. Fanout can also
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Coatings vs Resins for Your PCB: What’s Best for Providing Protection?
In today’s world, protection is always a welcome asset. Whether it be protection from the rain above your head (mitigated by a roof), protection from the sun (mitigated by sunscreen), or protection from electromagnetic currents (mitigated by current isolation techniques amongst others). With resin and conformal coating for your PCB, you can think about the forces that attack your PCB from a physical (environmental) standpoint - beyond EMI
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GPS Antennas in Your PCB Design: You Won’t Get Lost Again
Going on hunting trips with my grandpa as a kid, we would carry a rather large GPS-navigator to help us keep from getting lost in the woods. It had a huge antenna sticking out the top and its battery never lasted longer than a few hours. Fast forward 20 years, and including GPS capabilities in your PCB design has become easier than ever. Many new consumer devices include GPS PCB antenna modules in their design. If you don’t have GPS or RF-design
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Dual-Band PCB Antenna Design: Keeping Your EMI In-Line
If you were born in the 1980’s or earlier, you probably remember those old brick-like cell phones and their giant antennas. Fast forward to the present, and most people don’t even realize that their smartphones have antennas. Proposed antenna designs have come a long way since the 80’s, and new antennas can send and receive in more than one frequency band. As the mobile and IoT industry continues to advance, electronic devices continue to use
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