Schematic Power Amplifier and Layout

USB Power Bank Circuit Diagram DS2720 ICs control the conduction paths for charger USB Power Bank USB Power Bank Circuit Diagram using DS2720, power MOSFETs

qpsk modulator circuit QPSK Demodulation and Audio Signal-Processing IC for Satellite Broadcast Reception using LC7851E Overview The LC7851E demodulates the QPSK (quadrature phase shift keying) modulated audio data broadcast by the Japanese BS and CS broadcast satellites and converts that data to an analog audio signal. This IC integrates on a single chip the audio […]

This is a simple circuit which I built to one of my audio amplifier projects to control the speaker output relay. The purpose of this circuit is to control the relay which turns on the speaker output relay in the audio amplifier. The idea of the circuit is wait around 5 seconds ofter the power […]

Activ loudness audio circuit using 2SC945 Activ loudness audio circuit using 2SC945

Electronic Circuit ding-dong Sound for any Alarm Basically the circuit alternates between two frequencies which are adjustable. This produces the “ding-dong” sound.