The circuit is as shown: The microcontroller generates SPWM wave, which is inverted and filtered to generate a sine wave to drive the dynamic speaker to make sound! The waveform without the speaker is
I disassembled a panel RJ-45 socket and found the wiring inside is very strange. It should be differential wiring, or at least it should not be coupled randomly like this (the third wire is coupled wi
1. Working Principle of Infrared Thermometer Infrared thermometer consists of optical system, photoelectric detector , signal amplifier and signal processing. Display output and other parts. The opti
Intelligent power switches (IPS) are particularly popular in automotive applications, where they must handle some of the harshest electrical faults—including missing or offset grounds, voltage spikes,
Samsung Electronics has announced that it has developed graphene battery technology that increases battery capacity while boosting charging speeds to five times the current standard, The Korea Herald