Ideas for Design: Vol. 2, No. 6 (.PDF Download)

The first article in this collection of classic Ideas for Design explains how CMOS and switched-capacitor filters are used to build a simple circuit that converts square waves to sine/cosine waves. In the second article, the author discusses a numerical approach to calculating unequal values of ESR, high-frequency ripple voltage, and individual RMS currents based on published specifications. And the third design idea offers up a method on calculating an output filter's value in variable switching power supplies operating at different duty cycles.

These links are to the articles, while the Download button provides access to the PDF ebook with these articles:

• Circuit Generates High-Frequency Sine/Cosine Waves From Square-Wave Input
• Determine Equivalent ESR, Ripple Voltage, And Currents For Unequal Capacitors In Parallel
• Graphically Determine The Output Signal Level Of An RC Filter