Power Supply

Say No to Popcorn with Power88 Package’s Best-in-Class Moisture Sensitivity
Jul 14, 2015 and

PQFN (Power Quad Flat No-Lead ) packages are widely used for low-voltage applications because their low-profile and small footprint – typically measur…

Why Power Supply WebDesigner?
Jun 15, 2015

Fairchild just released its Power Supply WebDesigner TM, a suite of time-saving tools for designing and optimizing power supplies. What could take day…

When AC-DC Buck Converters Can Achieve Up to 9W – New Design Thinking and Application Example
Dec 18, 2014

By Jaekuk Ryu

Product Line Manager for Aux Power at Fairchild

Drawback of Isolated Flyback Converters

Isolated flyback is one of the best top…

A Basic Tutorial on the Voltage and Current Waveforms in a Step-Down DC-DC (Buck) Switched Mode Power Supply
Nov 25, 2014

Topic(s) Covered

Hard switched Waveforms
a. Voltage
b. Current
c. Gate Drive
Step-Down DC-DC (Buck) Switched mode power supplies (SMPS) general…

Transfer function Derived for PWM Switch Model for Flyback(Part 3 of 3 on Must Do’s to Understand a Flyback Output Filter )
Nov 3, 2014

Benefits to a 2nd Stage LC output filter for flyback:

Lower total capacitance needed to achieve output voltage ripple objective
Reduce overall f…

Impedance Reflection Described for PWM Switch Model for Flyback(Part 2 of 3 on Must Do’s to Understand a Flyback Output Filter )
Oct 30, 2014

Benefits to a 2nd Stage LC output filter for flyback:

Lower total capacitance needed to achieve output voltage ripple objective
Reduce overall f…