Resistors, Electromotive Force and Power Dissipation
https://www.electronics-lab.com/article/resistors-electromotive-force-and-power-dissipation/
Resistors A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. It is a conductor that impedes the flow of electric charge through it, creating electrical resistance. Such resistance results from collisions between free electrons and the crystal lattice of the conductor’s atoms. This is the main property of resistors. […]
Signal Conditioner for Sensorless BLDC Operations
https://www.electronics-lab.com/signal-conditioner-for-sensorless-bldc-operations/
This is a back EMF signal conditioning circuit that can be used to develop high-voltage sensorless motor drivers. When a sensorless algorithm is used to control the BLDC motor speed, the Back EMF (BEMF) signals are used. Based on zero crossing of BEMF signals, motor commutation is decided in the firmware. The signal conditioning circuit […]
ATtiny 85 EMF detector
https://www.electronics-lab.com/attiny-85-emf-detector/
arduinomaster @ instructables.com has build an EMF detector based on ATtiny85 mcu able to detect signals from 0-999Hz. He writes: An EMF meter can measure AC electromagnetic fields, which are usually emitted from manmade sources such as electrical wiring, while gaussmeters or magnetometers measure DC fields, which occur naturally in Earth’s geomagnetic field and are emitted […]
Attiny85 EMF detector
https://www.electronics-lab.com/attiny85-emf-detector/
by masteruan @ instructables.com: This is a simple tutorial to create an EMF detector. You can use Arduino for this job, but is better use a microcontroller called Attiny85. It is possible program it throe the Arduino interface. Attiny85 EMF detector – [Link]
Attiny45 EMF Sensor
https://www.electronics-lab.com/attiny45-emf-sensor/
by Khaleel123 @ instructables.com: This sensor is very sensitive and can pick up electrical signals from anything that uses power. It displays the amount of interference it picks up by sequentially lighting 4 led’s one after the other. I have tested it all around the house and its been kinda fun to see how different things […]