This circuit shows a Low Current Controlled Battery Charger Circuit using LM723 IC and 2N3055 power transistor. Furthermore, this design mainly gives constant charging current to battery, so battery gets safe charging without over current damage. First, AC supply comes from transformer and then circuit converts it into DC and after that LM723 controls voltage […]
741 Op-Amp Treble Booster Circuit
To begin with, this circuit works as a treble booster using LM741 operational amplifier, it boosts high frequency audio signals and improves clarity of sound. Many audio systems and guitar amplifiers lose high frequency detail, so this circuit helps to recover sharp sound. First of all, LM741 IC works as main amplifier stage and after […]
Simple Diode and Transistor Based Audio Limiter Circuit
This circuit is a Simple Diode and Transistor Based Audio Limiter Circuit and we use it in audio systems where signal level must stay under safe limit. Most power amplifiers require an input signal of around (1Vrms) and if the signal exceeds this level, the amplifier can distort the sound or even damage itself. Audio […]
Simple 500mW Speaker Driver Circuit
The LM386N is a small low voltage audio amplifier IC and many hobby users like this IC because it works with simple parts and gives good audio output. This Simple 500mW Speaker Driver Circuit can drive an 8Ω speaker with low distortion and also, the circuit works from a small DC power supply, so users […]
Easy DIY LM386 Audio Amplifier Circuit
LM386 is a very popular low voltage audio amplifier IC, many hobby users like this IC because it needs only few external parts and it gives good sound output for small speaker projects. In this Easy DIY LM386 Audio Amplifier Circuit, we explain two simple amplifier circuits using LM386 IC, the first circuit gives around […]
Multi-Purpose Audio Preamplifier Circuit using IC TL072
This Multi-Purpose Audio Preamplifier Circuit using IC TL072 is a simple and useful audio amplifier circuit; also, we can use this circuit for microphone signals, AUX audio signals, guitar pickups, music players and other low-level audio sources. Furthermore, the circuit increases weak audio signals to higher level output signals and therefore, the output can drive […]