The post explains a simple constant current bicycle dynamo battery charger circuit which can be used for charging a Li-Ion or Ni-Cd battery from a bicycle dynamo electricity source. The […]
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Cellphone Low Battery Cut-off with Indicator Circuit
The post explains a simple yet effective low battery cut-off with indicator circuit which can be integrated with cell phone/tablet charger battery packs in order to monitor and avoid battery […]
Diwali, Christmas 220V Lamp Chaser Circuit
The post explains a simple, compact, 220V, 120V transformerless light chaser circuit which can be used for illuminating 220 V mains operated lamps or bulbs in a sequential chasing manner. […]
Sound Activated Automatic Amplifier Mute Circuit
The following article presents a simple sound operated/activated amplifier muting circuit which enables the amplifier to silence itself as soon a voice or an external sound occurs across the detector MIC. The […]
Pure Sine Wave Inverter Circuit Using IC 4047
A very effective pure sine wave inverter circuit can be made using the IC 4047 and a couple IC 555 together with a few other passive components. Let’s learn the […]
IC 4047 Datasheet, Pinouts, Application Notes
The IC 4047 is one of those devices which promises an unlimited range of circuit application solutions. The IC is so versatile that on many occasions it easily outsmarts it’s […]