This blog post via: Arrandale and Clarkdale: Intel introduces model range A
Arrandale and Clarkdale: Intel introduces model range A
The new 32-nanometer CPUs in desktops and notebooks. They offer hyperthreading, an integrated GPU and hardware accelerated AES encryption. For the first time the GPU is integrated into the CPU package.
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Intel now has the available versions of the Core 2 Duo successor Arrandale (notebook) and Clarkdale (Desktop) announced. The official launch of the dual-core chips will not until 7 January at the Consumer Electronics Show in Las Vegas take place.
The CPUs are in the new 32-nanometer process and manufactured based on the in November 2008 introduced Nehalem architecture. They have hyperthreading and the automatic overclocking Turbo Boost. Six new commands to speed up the AES encryption. Of these, for example, benefit the Bitlocker hard drive encryption in Windows 7 or the Pack program Winzip 14th
For the first time the integrated Intel graphics unit in the CPU housing. It is designed as a separate 45-nanometer chip, and also includes the previously housed at the North Bridge memory controller.
Safety First
Portable system designers face the challenge: how to quickly and efficiently recharge the system, while not affecting the safety of users or damage the battery, and takes up minimal board space. Usually three kinds of lithium ion battery charger charging model to maximize charging efficiency and ensure user safety. Depth of discharge of the battery must be carried out gradually with the smaller pre-charge current, battery voltage is slowly raised to above the safety threshold.
Take the operating voltage range is 2.8V to 4.2V single-cell lithium ion battery charger, it is usually measured by a rechargeable battery voltage, when the battery voltage falls below 3V, it will enter the pre-charge or "slow charge" mode. Slow charge mode when the battery internal resistance is very low speed to prevent the battery charge, so as to minimize heat. General pre-charge period is the full charge rate of about 10% of charging.
Once the battery to minimum voltage, the charger switches to constant current or fast charge mode, then the battery will be charged at full speed until the battery to nearly full charge voltage of the second threshold. Then the charger will enter the constant voltage mode, the battery voltage remains unchanged at this time, so that the charge current gradually stop. When the charge current is less than the default termination threshold, the constant voltage charging mode is over.
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