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An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.
When overheating, the temperature of the part rises above the operating temperature. Overheating can take place: if heat is produced in more than expected amount (such as in cases of short-circuits, or applying more voltage than rated), or; if heat dissipation is poor, so that normally produced waste heat does not drain away properly.
In semiconductor devices, problems in the device package may cause failures due to contamination, mechanical stress of the device, or open or short circuits. Failures most commonly occur near the beginning and near the ending of the lifetime of the parts, resulting in the bathtub curve graph of failure rates.
Overheating and damage to circuits can occur very quickly when using high voltages. There are also longer-term concerns: various adverse device-level effects such as hot carrier injection and electromigration occur more rapidly at higher voltages, decreasing the lifespan of overvolted components.
Contact Ningbo to get a free replacement battery pack. You can either register online at Ningbo’s recall site or call at 888-943-2391, Monday through Friday, 8 a.m to 5 p.m., Eastern time.
Apple has released an iOS 17 system update that includes a fix to prevent the iPhone 15 lineup from becoming uncomfortably hot. According to the release's accompanying patch notes, iOS 17.0.3 ...
Apple claims a software bug and other issues are to blame for overheating problems with its recently-released iPhone 15 model phones, after complaints poured in shortly after the devices hit store ...
Charging a 12 V lead–acid car battery A mobile phone plugged in to an AC adapter for charging. A battery charger, recharger, or simply charger, [1] [2] is a device that stores energy in an electric battery by running current through it.