The sound decibel meter circuit shown underneath reacts to audio air pressure concentrations from approximately 60 to 70 dB. The sound is sensed by an eight ohm loudspeaker, intensified by […]
AC Mains Current Detector Circuit
This AC mains current detector circuit identifies current levels within one of the AC mains supplies with the aid of an inductive pickup sensor (L1) made using a one inch […]
Simple 1 Watt LED Driver Circuit
Here is an illustration of this efficiently operating a Simple 1 Watt LED Driver Circuit from a 12 volt battery power implementing a buck converter. The LED may perhaps plainly […]
Small Transistor Amplifier Circuit
The following is a small transistor amplifier circuit much like you will probably find in a compact transistor car radio. The source stage is biased to ensure the source voltage […]
Buck Solar Charger Circuit Using IC TL494
The following simple yet, improved, TL494 zero drop buck solar battery charger circuit works extremely well together with almost any solar panel intended for charging cellphones or cell phone battery […]
Increasing LM317 Current with a Transistor
Increasing LM317 Current with a Transistor could be implemented in order to contribute an integral part of the overall current. The level of current contribution is ascertained using a resistor […]