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  2. Relay - Wikipedia

    en.wikipedia.org/wiki/Relay

    A relay Electromechanical relay principle Electromechanical relay schematic showing a control coil, four pairs of normally open and one pair of normally closed contacts An automotive-style miniature relay with the dust cover taken off. A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple ...

  3. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    A "4-way" (intermediate) switch is a purpose built double pole, double throw (DPDT) switch, internally wired in manufacture to reverse the connections between the input and output and having only four external terminals. This switch has two pairs of "traveler" terminals that it connects either straight through, or crossed over (transposed, or ...

  4. H-bridge - Wikipedia

    en.wikipedia.org/wiki/H-bridge

    One way to build an H-bridge is to use an array of relays from a relay board. [3] A "double pole double throw" (DPDT) relay can generally achieve the same electrical functionality as an H-bridge (considering the usual function of the device). However a semiconductor-based H-bridge would be preferable to the relay where a smaller physical size ...

  5. File:DPDT-symbol.svg - Wikipedia

    en.wikipedia.org/wiki/File:DPDT-symbol.svg

    The following other wikis use this file: Usage on af.wikipedia.org Skakelaar; Usage on ast.wikipedia.org Interruptor; Usage on bn.wikipedia.org ইলেকট্রনিক প্রতীক

  6. Here’s the last day to send your gifts in time for the holidays

    www.aol.com/last-day-send-gifts-time-143042135.html

    - 2nd Day Air: December 20 - Next Day Air: December 23. There is no UPS pickup or delivery service on Christmas Day. USPS.

  7. An experimental drug drove people to lose 23% of their body ...

    www.aol.com/news/novo-nordisk-next-generation...

    The 68-week study showed participants on CagriSema lost about 23% of their body weight, compared with 12% for those taking cagrilintide by itself, 16% for those on semaglutide, and 2.3% for people ...

  8. Ohio College Wrestler, 19, Dies in Car Crash: 'A ...

    www.aol.com/lifestyle/ohio-college-wrestler-19...

    Joshua Taylor died on Thursday, Jan. 2, according to an obituary published online. He was 19 years old. He was 19 years old. The crash occurred in Licking County, Ohio, according to WBNS and The ...

  9. High-voltage interface relay - Wikipedia

    en.wikipedia.org/wiki/High-voltage_interface_relay

    High voltage interface relays, a.k.a., interface relays: [1] [2] or coupling relays or insulating interfaces [3] [4] is a special class of electrical relays designed to provide informational and electrical compatibility between functional components isolated from each other and not allowing for a direct connection due to a high difference of potentials.