In a system for monitoring water quality, EMI was overwhelming the LED sensors, so this engineer devised a means of reducing it.

Correlated time-frequency measurements optimizes gate driving and minimize EMI emission

Using an optocoupler in a switched mode power supply has some drawbacks, which this approach avoids.

An aging and seldom-used automotive battery that had to be kept charged, prompted this engineer to take a new look at an old design.

A few diodes can extend designer options when using latched relays.

Simple on-off (bang-bang) sensors pose a control challenge, but this approach offers an alternative that avoids sustained oscillation.

Varactors have their uses, but this design is more versatile in many situations.

This imaginative design eliminates ripple and greatly speeds a PWM DAC using only a few components.

A look at possibilities on how to make use of MEMS accelerometers to decrease overall power consumption.

This Design Idea regulates high voltage without using high-voltage switching components.