Any semiconductor has limits on how much voltage, how much current, and for how much time combinations of voltage and current can be supported in normal usage. Sometimes that information is provided as part of the device’s datasheet, and ...
Abstract This article describes a circuit that facilitates the measurement of currents from amps to hundreds of amps with a high degree of precision. Introduction There are many applications that require the measurement of current. Many digital ...
With the trend toward miniaturization, temperature effects in power electronics are more pronounced than ever. If you’re dealing with temperature fluctuations in your circuit, you may need a stabilization system to keep the temperature ...
I’ve been working with dc power supplies and batteries for over 30 years now and every day I employ Ohm’s Law, V = I R, to solve some problem or make some calculation related to dc power. If current is flowing, then there’s a ...
Could a simple passive RC network without any transformers, inductors, switches, or non-linear components produce a voltage gain? Well, it’s not “free energy,” however, yes, and can even use the same value resistor and capacitor ...
High-resolution mixed-signal devices present an interesting challenge as you try to find the right voltage-reference design. Although no universal approach exists for these voltage-reference designs, the circuit in Figure 1 presents an interesting ...
Particulate matter (PM2.5) monitoring is a key public-health metric. Vehicle- and drone-mounted sensors can expand coverage, but many existing systems are too costly for broad deployment. This Design Idea (DI) presents a prototype PM2.5 sensing and ...
A predominant failure mechanism for production pc boards is shorted traces. Finding hidden shorts is often time-consuming and frustrating. Typical techniques of cutting traces, lifting pads, and “blowing” shorts are, at best, ...
EDN Design Ideas (DI) published a design of mine in May of 2025 for a passive two-way current mirror topology ( Ref. 1 ) that, in analogy to optical two-way mirrors, can reflect or transmit. That design comprises just two BJTs and one diode. But ...
You sometimes need to measure the differential temperature between two points in a system to a greater accuracy than that required in measuring the absolute temperature at either of the individual points. Differential-temperature measurement is ...