Author Archives: Adam

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

L6208 Stepper Motor Controller

This circuit is a L6208 stepper motor controller. To build this circuit, we can implement slow decay. It allows

Posted in Control Electronics | Tagged | Comments Off on L6208 Stepper Motor Controller

Discrete High Current Switch Mode LED Driver

Discrete High Current Switch Mode LED Driver

This is a discrete high current switch mode LED driver circuit. The basics of this circuit is a buck-converter principle. The efficiency of this circuit is 80 to 90 %. This circuit can be applied on automotive lighting applications. The … Continue reading

Posted in Lighting and LED Circuit | Tagged | Comments Off on Discrete High Current Switch Mode LED Driver

Wien Bridge Sine Wave Oscillator

Wien Bridge Sine Wave Oscillator

Getting the right amplifier loop gain is the major problem in producing a low distortion constant amplitude sine wave. However, we can solve this problem with Wien bridge sine wave oscillator. Here is the circuit : This circuit uses the … Continue reading

Posted in Oscillators | Tagged | Comments Off on Wien Bridge Sine Wave Oscillator

Low Drift Sample and Hold

Low Drift Sample and Hold

This is a circuit of low drift sample and hold. This circuit uses two JFET, Q1 and Q2 that provides the sample and hold capacitor, C1. Q1 provides a path, Rds(on), for C1 and turned on during sample. Q2 IGSS … Continue reading

Posted in Signal Processing | Tagged | Comments Off on Low Drift Sample and Hold
1 2 3 4 5 6 7 8 9 10 11 12 ... 30 »