Microcontrollers

Microcontrollers, programmers, evaluation kits & demonstration boards.

nice simple reasonably accurate PWM-driven 16-bit
A nice, simple, and reasonably accurate PWM-driven 16-bit DAC
Aug 14, 2025 Circuits

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...

practical design guide lightning detectors
A practical design guide for lightning detectors
Aug 13, 2025 Articles

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...

Independent control thyristor half-wave firing angles
Independent control of thyristor half-wave firing angles via PWM
Aug 11, 2025 Circuits

“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...

Linear regulators digital way
Linear regulators in a digital way
Jul 29, 2025 Articles

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...

Another weird 555 ADC
Another weird 555 ADC
Jul 23, 2025 Circuits

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...

Simple PWM interface can program regulators
Simple PWM interface can program regulators for VOUT < VSENSE
Jul 15, 2025 Circuits

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”...

Renesas brings USB-C Rev. 2.4 support
Renesas brings USB-C Rev. 2.4 support to new ultra-low-power RA2L2 microcontroller group
Jul 1, 2025 News

Renesas Electronics Corporation introduced the RA2L2 microcontroller group with ultra-low power consumption and the industry’s first support for the new UCB-C Revision 2.4 standard...

single op-amp solution stabilize laser output
A single op-amp solution to stabilize laser output
Jun 10, 2025 Circuits

Semiconductor laser diodes are often packaged with a photodiode. The output current from this photodiode can be monitored to regulate the output power intensity of the laser diode...

Revisited Three discretes suffice interface PWM
Revisited: Three discretes suffice to interface PWM to switching regulators
Jun 8, 2025 Circuits

Many voltage regulator chips, both linear and switching, use the same basic two-resistor network for output voltage programming...

Adaptive resolution ADCs
Adaptive resolution for ADCs
Jun 4, 2025 Articles

Engineers always want to get all they can from their circuits; this holds for analog-to-digital converters. To maximize performance from an ADC, resolution is perhaps the primary spec to focus on...