The Buffer/Driver: What Is It, and Do I Need One?
Although buffers and drivers don’t appear to add functionality to a circuit, these apparently simple interface elements are essential to viable circuit design and operation.
Obtaining Hands-Off, Long-Life Power: No Easy Options
The design assignment is clear: build a small datalogger which will be inaccessible once in place, yet must operate for a minimum of 20 years.
That Simple Current-Sense Resistor Isn’t Simple at All
Sensing of current magnitude is critical in many applications and often done by measuring the voltage across a shunt resistor, but even this simple technique has subtleties and issues to resolve.