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2. IEC 62700 - Wikipedia

   en.wikipedia.org/wiki/IEC_62700

   IEC Technical Specification 62700: DC Power supply for notebook computer is an IEC specification of a common standard for external laptop computer AC adapters.Laptops and AC adapters following this standard will have interchangeable power supplies, which will enable easy reuse of used power supplies (thereby reducing electronic waste) and make buying a new compatible power supply for a laptop ...

3. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   A six-way connector on a "universal" DC power supply, consisting of a four-way X connector and two separate individual connectors (one is the nine-volt battery connector). The X-connector here provides 3.5 and 2.5 mm phone plugs and two sizes of coaxial power connector Universal laptop power supply with adjustable voltage between 12 and 24 volts

4. EmPower (aircraft power adapter) - Wikipedia

   en.wikipedia.org/wiki/EmPower_(aircraft_power...

   Apple offered an EmPower MagSafe power adapter for their MacBook, MacBook Pro, and MacBook Air lines of notebooks, and also included a cigarette lighter socket adapter. However, this system would only run the computer without charging the computer's battery, and Apple warned users to never plug this device into a car's cigarette lighter outlet. [5]

5. More than 15 million Toshiba laptop adapters recalled due to ...

   www.aol.com/news/more-15-million-toshiba-laptop...

   The firm formerly known as Toshiba is recalling 15.5 million AC laptop adapters due to the potential for burn and fire risks. The firm, now called Dynabook, said it had received 679 reports of the ...

6. Power supply - Wikipedia

   en.wikipedia.org/wiki/Power_supply

   An AC adapter disassembled to reveal a simple, unregulated linear DC supply circuit: a transformer, four diodes in a bridge rectifier arrangement, and an electrolytic capacitor to smooth the waveform In a linear power supply the AC input voltage passes through a power transformer and is then rectified and filtered to obtain a DC voltage.

7. DC connector - Wikipedia

   en.wikipedia.org/wiki/DC_connector

   The polarity for 12 V DC sockets is center pin positive (+), outer collar negative (−). Reversed polarity will damage some electronic devices. Although the nominal voltage of a 12 V lead acid battery is 12 V DC, when the engine is running the car's battery charging system will bring the system voltage to 13.8 V DC or higher. [10]