Featured Posts

MAX1703 Single-Cell Boost Converter Circuit

When you design a circuit with only a single-cell battery, you will need boost-converter to provide enough voltage for most ...

Read More

55MHz Scope Sensitivity Amplifier

Scope sensitivity amplifier is a vital front-end signal processing for every scope instruments. The function of this circuitry is simple: ...

Read More

Two-Band Bxandall Active Tone Control

Using active circuit for tone control means that we can provide cut and boost, maintaining overall amplifying factor of original ...

Read More

Pulse Width (PWM) Controller Circuit

A LM3900 quad operational amplifier can be used to build a pulse width (PWM) controller. The LM3900 was chosen because ...

Read More

Small TV Modulator Using A Motorola MC1374

How can television modulator be small and simple like this? First, it uses integrated circuit, and the second, any TV ...

Read More

Spectrum Analyzer Adapter for Oscilloscopes

The circuit shown in the following schematic diagram is a simple spectrum analyzer adapter circuit for oscilloscopes. This circuit can be used for scanning or monitoring a segment of radio spectrum or amateur band.  Inside this circuit,  an NE602 mixer … Continue reading

Posted in Test and Measurement | Tagged | Comments Off on Spectrum Analyzer Adapter for Oscilloscopes

555 IC LED Flasher for Up To 10 LEDs

This LED flasher circuit uses 555 IC, and is capable of driving up to 10 LEDs. The good news is, the use of multiple LEDs in series doesn’t increase the power consumption when compared with using only two LEDs. If … Continue reading

Posted in Lighting and LED Circuit | Tagged , , | Comments Off on 555 IC LED Flasher for Up To 10 LEDs

Automatic Headlight Dimmer, Safe Yourself and Others

This schematic diagram shows an automatic headlight dimmer circuit for your car’s headlight, keep you safe in the dark with maximum bright for farthest visibility, but will automatically switch from high to low  beam when traffic approach to save others … Continue reading

Posted in Oscillators | Tagged , | Comments Off on Automatic Headlight Dimmer, Safe Yourself and Others

Multiplexed BCD Decoder 7 Segments Driver

To save the complexity of driver circuit, a multiplexer icrcuit can be used for the solution. With this multiplexed BCD decoder, we can use only one BCD decoder to drive 3-digits 7 segment display. Each digit will be activated in … Continue reading

Posted in Lighting and LED Circuit | Tagged , | Comments Off on Multiplexed BCD Decoder 7 Segments Driver
« 1 ... 7 8 9 10 11 12 13 14 15 16 17 ... 127 »