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  2. 1N400x rectifier diode - Wikipedia

    en.wikipedia.org/wiki/1N400x_rectifier_diode

    1N4001 diode in DO-41 axial package (through hole mount) A schematic symbol for general-purpose silicon rectifier diodes Current-voltage characteristics of a 1N4001 at different temperatures The 1N400x (or 1N4001 or 1N4000 [ 1 ] ) series is a family of popular one- ampere general-purpose silicon rectifier diodes commonly used in AC adapters for ...

  3. Buck converter - Wikipedia

    en.wikipedia.org/wiki/Buck_converter

    If the switch is opened while the current is still changing, then there will always be a voltage drop across the inductor, so the net voltage at the load will always be less than the input voltage source. When the switch is opened again (off-state), the voltage source will be removed from the circuit, and the current will decrease.

  4. USB - Wikipedia

    en.wikipedia.org/wiki/USB

    Standard USB hub ports can provide from the typical 500 mA/2.5 W of current, only 100 mA from non-hub ports. USB 3.0 and USB On-The-Go supply 1.8 A/9.0 W (for dedicated battery charging, 1.5 A/7.5 W full bandwidth or 900 mA/4.5 W high bandwidth), while FireWire can in theory supply up to 60 watts of power, although 10 to 20 watts is more typical.

  5. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    As early as 1885 a two-pin plug and wall socket format was available on the British market. By about 1910 the first three-pin earthed (grounded) plugs appeared. Over time other safety improvements were gradually introduced to the market. The earliest national [clarification needed] standard for plug and wall socket forms was set in 1915.

  6. Power Switches from Diodes Incorporated Increase Power ... - AOL

    www.aol.com/news/2013-01-08-power-switches-from...

    Power Switches from Diodes Incorporated Increase Power Density in USB Port Protection Duties PLANO, Texas--(BUSINESS WIRE)-- Diodes Incorporated (NAS: DIOD) , a leading global manufacturer and ...

  7. Doorbell - Wikipedia

    en.wikipedia.org/wiki/Doorbell

    Pressing the doorbell button, a single-pole, single-throw (SPST) pushbutton switch momentarily closes the doorbell circuit. One terminal of this button is wired to a terminal on a transformer. A doorbell transformer steps down the 120 or 240-volt AC electrical power to a lower voltage, typically 6 to 24 volts. The transformer's other terminal ...