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Returning trio tackles PWM regulators, current monitoring, digital I/O
Editor's note: Chuck Small has taken over Design Ideas editing duties from Brad Thompson.This week's new batch of Design Ideas features a trio of returning authors.First up, Grant Smith of National Semiconductor, in "Current mirror improves PWM regulator's performance," virtually halves the component count of the feedba... (more) Details... more...
A new use for analog oscilloscopes; generating pseudorandom sequences at 1.5 Gbps; and the extremely rare EDA-related Design Idea
In the latest batch of Design Ideas, Antonio Eguizabal of Freescale Semiconductor sent in Oscilloscope helps obtain Bode plots in non-50-ohm environments. As an alternative to building or purchasing custom buffer amplifiers, you can use the near-ideal amplifiers in an analog oscilloscope that provides a vertical amplifier output on its rear panels—fo... (more) Details... more...
Microcontroller as voltmeter, testing lithium-battery chargers, canceling common-mode voltage, and more
The circuit in "Microcontroller functions as voltmeter," by author Noureddine Benabadji is an extension of his previous Design Idea on how to use an analog input in a microcontroller lacking a built-in ADC (see "Microcontroller, JFET form low-cost, two-digit millivoltmeter"), and it... (more) Details... more...