Microcontrollers

Without a doubt, FM transmitter and receiver are among the top favorite electronic project topics, however, building a digital FM transmitter can be a challenging project for electronics enthusiasts...

There’s been interest recently here in the land of Design Ideas in a family of simple interface circuits for pulse width modulation control of generic voltage regulators...

The circuit converts the input DC voltage into a pulse train. The period of the pulses is proportional to the input voltage with a 50% duty cycle and a nonlinearity error of 0.01%...

Many recent Design Ideas have involved button-pushing to control power. Some may have been more resistant to contact-bounce than others – but how can we really check that?...

Implementing a simple digital-to-analog converter by cascading a single pulse width modulator and an analog low-pass filter is nothing new. Nor is applying to a filter the sum of the outputs...

Lightning is one of nature’s most intense and unpredictable forces, but thankfully, we have got technology to help us stay ahead of the storm...

“Two halves make a whole” is a very old and often true maxim. For example, it’s almost always true when said about AC phase angle power control...

There is a new product type in the industry, the digital low dropout linear regulator. It offers telemetry and adjustability of a linear power supply in a very small footprint...

Integrating ADCs that provide accurate results without requiring a precision integrator capacitor has been around for a long time. A venerable example is that multimeter favorite, the dual-slope ADC...

I recently published a Design Idea showing some very simple circuits for PWM programming of standard regulator chips, both linear and switching, “Revisited: Three discretes suffice to interface PWM to switching regulators”...