One of my friends laments that her husband has three versions of the same flat-head screwdriver. He doesn’t put his tools away so when he goes looking for a flat-head screwdriver, he can’t find one let alone three. Rather than spend his day looking for the lost tool, he conveniently drives to the hardware store and buys another. Enterprise databases are prone to the same redundancies, that’s why BOM analysis is important. Over time, designers

One of the dictionary definitions of the word “template” is; anything that determines or serves as a pattern or a model. Without realizing it, I bet that we all rely on a lot of templates in our lives. I have certain document templates that I use for work, and my wife has hundreds of patterns that she uses when sewing. I even have a designated pattern set for my Christmas decorations so that I can quickly put them up and then easily take them

Checklists are an important part of life. Airline pilots use them to make sure that they’ve put the wheels down before landing. Shoppers use them to make sure that they don’t forget to buy the eggs. We all use checklists in different ways, and many of us would be lost without them. Here’s another good use for a checklist; making sure that we don’t forget to include important elements on our PCB design. It’s not likely that we will forget to place

Circuit breakers are not required in every system, but in some environments they are the main source of protection against overvoltage/high current, as well as any damage that can result from power surges. Circuit breakers are best known for use in residential circuit protection, but they can be used in any environment (such as power systems and industrial systems) that require circuit protection. Some circuit breakers can be mounted on a PCB

Recently, I helped with a plumbing problem at my mother-in-law’s house. A fixture had started to leak and water was going everywhere. As she thought about it for a while, mom realized that she had been living there for 25 years and had never replaced this fixture. The old part had now failed though, and needed to be replaced. However, trying to find a modern replacement part that would fit turned out to be an even bigger problem. It’s one of

You’ve done it, your printed circuit board is finished and ready for PCB assembly. The schematic is finalized, the layout is checked and approved and you are ready to get this thing built. To do that though, you need to create a bill of materials. Fortunately, we are long past the days where these documents were created by hand. Every CAD system out there will automatically create a bill of materials through some library or other process. But

I started playing chess a bit more seriously a few years ago and have since become quite capable of planning out moves several turns in advance with an accurate prediction of how my opponent will react to them. I wouldn’t even consider competitive with my chess skills, but there are professionals who can predict moves and match outcomes between 60 and 100 moves in the future. While it’s a strong practice to get into, being able to predict moves

When I was a kid and learned to solder, I had a mentor that kept an old coffee can on his soldering bench labeled “Lead Waste - DO NOT THROW IN TRASH.” Wire snippings, solder bits, and the random metal detritus that accumulates on a soldering mat all went in there. Apparently, it got full every few years and he took it to a local electronics recycling place to make sure he wasn’t adding any lead or heavy metals to the environment. I was shocked

My mouth was watering as I picked up the box sitting on my front porch. Dinner would be ready in 20 minutes. I was so hungry, having just gotten home. The box contained recipe cards and ingredients for making dinners throughout the week. I put on my slippers, and I pulled a recipe card from the box. All the ingredients were there. This new meal delivery service was growing on me. I’d be eating dinner soon, with time to spare for needed downtime

I’m currently building a new tool shed and I was fortunate enough to find some plans for exactly what I need. Or at least I thought that I was fortunate until I started noticing some errors in the plans. At one point it instructed me to cut two door headers to a precise measurement, but that measurement was wrong and the headers ended up too short for assembly. I must confess, I may have uttered a few choice words concerning those shed plans on