Why cell phone batteries don’t last for days anymore and what to do about it.
There was once a time when your cell phone could go for days without needing to be recharged. Today, despite the innovations in cell phone battery technology, new demands, such as more internal radios and larger and higher resolution screens, place a greater drain on battery life than ever before. As a result, engineers must consistently innovate to reduce the power consumption as new technology is added to a cell phone. Today, envelope tracking (ET) is an increasingly popular technique used to optimize the power-added efficiency (PAE) of the RF power amplifier (PA) which is one of the primary drains on battery life. This article covers the fundamentals of ET using data gathered from an RF PA to identify crucial ET parameters. Based on these parameters, a PXI-based measurement setup is proposed and analyzed that meets the stringent requirements of ET test.
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Growing volume of data and limited improvements in performance create new opportunities for approaches that never got off the ground.
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Old solutions don’t necessarily work anymore, particularly at advanced nodes and ultra-low voltage.
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AI-enabled systems are being designed to process more data locally as device scaling benefits decline.
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Foundry forms ASIC subsidiary as it focuses on 14nm/12nm and above.
Technology has the potential to reshape processing everywhere, starting with limited scientific and commercial applications.
Market overcrowding, more efficient manufacturing, and growing list of scaling issues create a challenging competitive landscape.
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