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In-Depth
Secondary-side synchronous rectification boosts resonant converter efficiency 11/19/2009
While secondary-side synchronous rectification in resonant half-bridge topology is not uncommon, its implementation has not been easy. A novel control scheme precisely turns on and off the secondary-side synchronous rectifier MOSFETs to achieve rectification that emulates a Schottky-diode rectifier, minimizing switching losses and optimizing conversion efficiency.Using high-current integrated-switch power-regulator ICs 10/22/2009
Learn the thermal considerations so you don't get burned.Breaking down the sensor-signal path 9/17/2009
By understanding the stages of an analog-signal path, digital-system developers can more accurately capture sensor data for a variety of applications.Implementing power factor correction with frequency clamp critical conduction mode 8/19/2009
An innovative power factor correction design, frequency clamp critical conduction mode, clamps the frequency with a near-unity power factor while keeping the simple control scheme of a critical conduction mode design.Simple battery technology packs in more features with complex chemistries 7/23/2009
The basic components are the same across all rechargeable lithium-ion cells, the workhorses of portable energy storage.Error amplifier limitations in high-performance regulator applications 6/24/2009
As power supply switching frequencies increase, higher loop crossover frequencies are necessary to keep pace with the escalating load transient slew rate demands, and to reduce the number and size of filter components. For voltage-mode-controlled supplies, the voltage loop error amplifier must work harder to provide its compensating gain loop contribution.Characterize optocouplers in the feedback loop of high-frequency power converters 6/19/2009
Optocouplers will add a phase shift that can make your power supply unstable. Here is how you can measure and compensate the loop.Electronic ballast circuits enhance resonant-mode power supplies 5/15/2009
This article explains the basic functionality of a typical electronic ballast circuit, highlights the similarities between the two applications, and describes a typical resonant-mode power-supply solution using a standard electronic ballast control IC. Experimental results are also shown to verify final performance and functionality.LED lighting: panel debates quality versus cost 5/8/2009
LED lighting can be great—but LEDs won’t make a replacement for screw-in light bulbs any time soon.Use alternative approaches to evaluate dc/dc synchronous buck converters 4/23/2009
Linear systems, online tools, and full simulations help you analyze your designs.ADVERTISEMENT
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