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Apple's $600 million set out to improve iPhone power management

via:威锋网     time:2018/10/11 16:32:17     readed:119

Today, Dialog Semiconductor, the iPhone power management chip supplier that has been working with Apple for many years, announced in London that it will reach a $600 million deal with Apple, including power management technology patent licensing, partial asset transfers, and 300 A research and development engineer delivered it to Apple.

Apple's power management chip has long relied on Dyle, the world's largest manufacturer of power management chips, primarily for smartphones and IoT devices. In the first half of this year, Apple’s self-developed power management chip news broke, and Dai Lege’s share price was hit hard, and this cooperation announced that it has caused Dai Lege’s stock to rise in pre-market trading.

The transaction is subject to regulatory approval and is expected to be completed in the first half of 2019. It is reported that Apple will pay $300 million first and prepay $300 million in advance for the next three (2019~2021) purchases, including power management, audio subsystems, charging and other mixed-signal IC development and supply. The 300 technicians who shipped to Apple accounted for 16% of the global employees of Dell, and Apple will take over some of the equipment in Italy, the UK and Germany.

From this point of view, Apple can not only benefit from the team of advanced power management chip engineers familiar with Apple products, but also help their technical departments to get more chip development support throughout Europe.

Since the end of last year, there have been media reports that Apple is designing its own power management chip to handle tasks such as iPhone charging, battery life management and energy consumption to replace the power management integration of Dailer in existing mobile phones. Circuit.

Designing a power management chip yourself can be better integrated with A-series processors and W-wireless chips. In addition, Apple is also embarking on self-developed GPUs. The power chip technology in its own hands can help Apple further reduce costs. Improve battery efficiency and even promote the future of virtual reality and augmented reality glasses.

A mobile phone battery is an energy storage tool that provides power to a mobile phone. In fact, it is not just a mobile phone. All electronic devices require a power supply, but different systems have different power requirements. In order to play the best performance of the electronic system, it is necessary to choose the most suitable power management method. This is achieved by the corresponding power chip combined with few external components. It is obvious that the development of the power management chip is essential to improve the performance of the whole machine. s method.

In the electronic equipment system, the chip responsible for the conversion, distribution, detection and other power management of electric energy is the power management chip, which is mainly responsible for identifying the CPU power supply amplitude, generating the corresponding short-moment wave, and pushing the latter circuit. Power output.

Last year, we should be impressed with the "battery door" incident that pushed Apple to the cusp. Although Apple officials have always attributed the reason for the automatic black screen shutdown to the objective factors such as the service life of lithium batteries, many opinions hold that it plays an important role in this. The role of the battery management chip did not work well is also the mistake of Apple's iPhone design.

As the performance of the iPhone hardware has increased, both the CPU and the image processor have been greatly accelerated, and the functional modules of the device have become increasingly complex, which has pushed up the demand for more input current, which has led to a significant increase in power consumption. Therefore, the power management chip must also develop toward higher integration, higher power density, higher withstand voltage, current resistance and higher energy efficiency.

Modularity is the strongest trend of power management chip technology. Modular power management IC can effectively reduce the complexity of system design, save board space, improve system long-term reliability, and also effectively reduce system cost. The benefits are obvious. The modularization trend is also reflected in the “integration” of other chips on the board, and the integration of functions such as communication and monitoring between the power management IC and the main control chip is also increasing.

Perhaps based on such development requirements, Apple began to launch a battery management chip research and development program, hoping to use the latest chip technology to maximize the "battery door" problem that has plagued them for several years.

According to previous rumors, Apple has at least eight patents on battery life. The patent includes ensuring that each part of the mobile phone processor consumes only the minimum power required, shutting down some of the processors when the processor is not needed, and making sleep and wake-up functions better. jobs. Therefore, once the chip is launched, it will be "the most advanced", and the future iPhone will also have a significant improvement in endurance.

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