Design Solutions
Pick a Plug ’n’ Play Linearizer for Your 5G RF Power Amplifier
In this design solution, we present the features and benefits that 5G telecommunications technology promises to bring and the associated demands that these will place on RF power amplifier (PA) designs. We then review the most commonly used PA linearization techniques, assessing their suitability to meet these demands before presenting a low-power linearizer IC with the potential to greatly simplify the design of PAs used in 5G network applications, while also reducing power consumption.
Featured parts: SC1905
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How to Build a Cooler, Denser ASIC Mining Rig
How to Build a Cooler, Denser ASIC Mining Rig
Cryptocurrency and other blockchain technologies are computationally intensive. Current blockchain mining rigs rely on hundreds of dedicated ASICs that consume kilowatts of power for computation. Converters used to power the ASICs must be space- and power-efficient to maximize density and minimize heat generation. After a quick review of this new class of applications, we propose a two-phase buck converter with a coupled inductor as the ideal solution to power the ASICs.
Featured parts: MAX20796
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How to Fast-Charge your Supercapacitor
How to Fast-Charge your Supercapacitor
Supercapacitors (or ultracapacitors) are suited for short charge and discharge cycles. They require high currents for fast charge as well as a high voltage with a high number in series as shown in two usage cases: an automatic pallet shuttle and a fail-safe backup system. In these and many other cases, the fast charge is provided by a flexible, high-efficiency, high-voltage, and high-current charger based on a synchronous, step-down, supercapacitor charger controller.
Featured parts: MAX17701
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Don’t Get Cold Feet with Your ASIL-B, Cold-Crank Specifications
Don’t Get Cold Feet with Your ASIL-B, Cold-Crank Specifications
In this design solution, we show how a TFT-LCD display backlight can meet the automobile’s toughest requirements. We demonstrate how the automotive backlight driver offers comprehensive diagnostics, I2C capability, and critical circuit redundancy that meet ASIL-B functional safety requirements. A clever design allows the MAX25024 to meet and exceed cold-crank specification for flicker-free automotive display operation. High integration yields a small IC, lower BOM costs, and smaller PCB size.
Featured parts: MAX25024
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