radiolocman

[radiolocman @radiolocman]

Infrared remote control decoder & switcher using Arduino
https://t.co/nrF8yg6XnP

In this article, we learn to build a device that can decode (almost) any IR remote control and use the instructions to switch the relays (loads)...

[radiolocman @radiolocman]

ΔVBE thermometer outputs 1 mV/°C without calibration or op amps
https://t.co/PszV5qRDW6

Op amps tend to make analog design easy. Maybe sometimes too easy?...

[radiolocman @radiolocman]

Piezoelectric tap switch
https://t.co/FnZ5fJVlIu

This circuit uses a flat piezoelectric wafer, glued inside a plastic box, as a finger tap sensor. With each tap of a finger to the box holding the wafer, the circuit turns on and off AC or DC power to an external device...

[radiolocman @radiolocman]

ΔVbe + DMM = Celsius, Kelvin, Fahrenheit, and Rankine thermometer
https://t.co/a319DCcwVe

Combining an accurate temperature sensor with a standard digital multimeter can make an inexpensive, accurate, and useful thermometer...

[radiolocman @radiolocman]

Poll: 15% of people would be OK with an AI boss
https://t.co/aEVw0VKrg4

AI might be replacing jobs at an exponential rate, but a significant percentage of people would not only be OK with AI co-workers, but an AI boss...

[radiolocman @radiolocman]

I built a 100W stereo class-D amplifier using TPA3221
https://t.co/KxzBN5RA4Q

Class D amplifier with a good performance and better sound quality. We can call it a Class D with Class A specs...

[radiolocman @radiolocman]

BJT is accurate sensor for absolute temperature in Kelvin and Rankine
https://t.co/P0ckcwEVQs

Simple math implemented in a (very) simple circuit. What’s not to like?...

[radiolocman @radiolocman]

Does using AI make us less confident in our own abilities?
https://t.co/hv7YAHsVkX

At a time when AI data centers are expanding astronomically to provide the otherworldly computing power needed to train AI models, you might be wondering about the psychological effect of expos...

[radiolocman @radiolocman]

Linearly variable two-wire loop current generator
https://t.co/2ITQDzJd5T

Circuits such as the design described here implement useful tools for a diversity of calibration and testing applications...

[radiolocman @radiolocman]

Find a signal's bandwidth from its harmonics
https://t.co/86CWzk25DK

There are several ways to evaluate the bandwidth of a signal in the time domain and frequency domain. Previously we looked at the classic relationship of rise time (tR) and bandwidth (f3dB)...

[radiolocman @radiolocman]

EPC expands the offering of 100 V integrated GaN power stages optimized for motor drives with improved control and protection
https://t.co/esrT2oL5PW

Efficient Power Conversion has introduced a new generation of 100 V integrated GaN power-stage ICs...

[radiolocman @radiolocman]

Battery switch
https://t.co/jfckLIFbnF

Given two batteries, it chooses the one to connect to the load based on the voltage measured at their poles. It can also be used to switch DC power supplies...

[radiolocman @radiolocman]

Simple circuit interfaces differential capacitance sensor
https://t.co/tB5Hf3QUrB

This design based on an SR latch and two RC networks is, unlike many alternative solutions, neither complex nor expensive...

[radiolocman @radiolocman]

What's that signal's bandwidth?
https://t.co/VqTaQh7G1r

The term bandwidth is used and abused in many situations. I recall one meeting where the word was used to refer to...

[radiolocman @radiolocman]

Give bare-metal multicore processing a try
https://t.co/75xP4AMzqC

Multicore processing boosts performance and energy efficiency in many coding situations. Bare-metal algorithms further enhance these benefits...

[radiolocman @radiolocman]

Double-duty current loop transmitter
https://t.co/a3NGuOu52U

Tracking down rodentia (or otherwise)-caused cable cuts, and differentiating them from normal open circuits, is critical. Evolving the circuit design for expanded functionality makes it even more valuable...

[radiolocman @radiolocman]

Tiny continuity tester
https://t.co/It4yg0Cydw

Figure shows a simple tester, based on an ATtiny202, a piezo buzzer, and an LED, for checking circuit wiring or tracing out the tracks on a PCB...

[radiolocman @radiolocman]

How to build a 1000 W ZVS induction heater using a resonant RLC circuit
https://t.co/lag4uOmVle

Let’s melt metals using the ZVS technique applied to a 1,000 W RLC resonant circuit. Have you ever wondered how intense the electromagnetic fields surrounding us can be?...

[radiolocman @radiolocman]

5-V ovens (some assembly required). Part 2
https://t.co/eF6OFSsXW4

In this second part, we’ll investigate something PWM-based, which should be more controllable and hence give better results...

[radiolocman @radiolocman]

Low voltage GaN converter gate drive and measurement
https://t.co/PwnBjaWA9W

This article discusses the need for precise gate voltage control and accurate gate measurements when using gallium nitride field-effect transistors (GaN FETs)...