Digital twins are getting lots of deserved attention, but are they the cure-all for whatever simulation issues you have? Although digital twins are undoubtedly valuable tools along with basic simulation, modeling, HITL, and others, the associated all-good/no drawbacks promotion concerns me. When a tool, product, or other development gets a lot of “pumping up” to […]
What are digital twins, and where are they on the “hype cycle”?: Part 1
Digital twins are getting lots of deserved attention, but are they the cure-all for whatever simulation issues you have? Lately, I’m seeing what are called “digital twins” cited everywhere. What is a digital twin? In addition to having that very catchy name, it is a highly advanced model of the system which can be used […]
Confused about RF-band letter designations? That’s not surprising!
Frequency bands within the electromagnetic spectrum have multiple, sometimes confusing, overlapping designations. Electronics engineers must deal with the electromagnetic spectrum as a routine part of their wired and wireless projects. This spectrum of interest ranges from relatively low frequencies in the kilohertz (kHz) range (or perhaps lower) into the tens and even hundreds of gigahertz […]
The why, where, and how of automatic gain control, Part 3
There are many ways to implement the automatic gain control function, which is critical to proper performance of many wireless and other links. The previous parts looked at the AGC in the context of its broadest application of wireless links. This part looks at some other aspects of AGCs. Q: What other applications use AGCs? […]
The why, where, and how of automatic gain control, Part 2
There are many ways to implement the automatic gain control function, critical to proper performance of many wireless and other links. The previous section discussed the context and need for AGC. This section will look at the different ways in which the AGC function is implements, and some of the parameters associated with the AGC […]
The why, where, and how of automatic gain control, Part 1
There are many ways to implement the automatic gain control function, which is critical to the proper performance of many wireless and other links. The automatic gain control function has been embedded in radio links since the earliest days of wireless technology, but the need for AGC is not limited solely to that application. Along […]
Have you considered resistance soldering? Part 2
Resistance soldering is an alternative to conventional “pencil” soldering iron, which offers unique capabilities. Resistance soldering is an easy-to-use alternative soldering technique that’s been available for decades and offers many benefits, although it cannot always be used when soldering is required. It leverages the well-known principle of electrical self-heating (I2R dissipation) to create a localized […]
Have you considered resistance soldering? Part 1
Resistance soldering is an alternative to conventional “pencil” soldering iron which offers some unique capabilities. The image of the electrical engineer or hacker bent over and using a soldering iron on a circuit board is a classic visual cliché of TV and movies (Figure 1). In most of these soldering images, the engineer is using […]
Digipots as electronic potentiometers, Pt 3: Enhancements
Digital potentiometers – digipots – are widely used, versatile, flexible, and feature-laden alternatives to classic mechanical potentiometers. In addition to their “hands-off” controllability, digipots offer additional simplicity, design-in ease, and much lower cost than potentiometers. Among their other capabilities: Dual digipots are useful where two resistances must be adjusted independently but especially so when they […]
Digipots as electronic potentiometers, Pt 2: Features
Digital potentiometers – digipots – are widely used, versatile, flexible, and feature-laden alternatives to classic mechanical potentiometers. In a traditional potentiometer, a person’s hand (or perhaps even a small motor) sets the wiper position and thus the voltage-division ratio. In a digipot, instead, a computer and digital interface connect to the digipot IC and establish […]
