2022-10-14 - Chengyi Jin

Integrated power loss brake features lower energy consumption and reduce costs in data-center fan applications

Fan drivers with power-loss braking capability are presented as options that provide the desired improved safety and thermal efficiency while…

2022-10-13 - Alfredo Gonzalez Calvin

Adjustable triangle/sawtooth wave generator using 555 timer

This Design Idea creates an adjustable triangular and sawtooth waveforms using a 555 timer.

2022-10-07 - Stephen Woodward

Precision DC motor speed control via pot or DAC

Here's a Design Idea for a winding-resistance-cancelling motor drive with a pot or with a DAC.

2022-09-30 - Arthur Edang

Inductor-based astable 555 timer circuit

This Design Idea presents a 555 multivibrator circuit that relies on an inductor instead of the usual capacitor to set…

2022-09-21 - Stephen Woodward

Linearized portable anemometer with thermostated Darlington pair

This self-heated constant-temperature-delta transistor anemometer is cheap, rugged, and sensitive.

2022-09-16 - Michael A. Shustov

Improved comparators for better designs

Analog and digital comparators allow you to compare input signals by their level.

2022-09-15 - Arthur Pini

Making better measurements with your oscilloscope or digitizer

Remembering some very simple rules can improve the accuracy and precision of your measurements.

2022-09-08 - Jim McLucas

Frequency doubler with 50 percent duty cycle

A simple frequency doubler circuit produces a square wave output with a precise 50 percent duty cycle.

2022-08-31 - Hichem Benabadji

Getting rid of the diode voltage drop in a charge pump circuit

A simple and efficient way to reduce the forward voltage drop in a diode-based charge pump (discrete circuit) thanks to…

2022-08-19 - Stephen Woodward

Self-heated Darlington transistor pair comprises new air flow sensor

Here's a practical air flow circuit using to advantage what's often thought of as a disadvantage of the classic Darlington…