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  2. Bipolar junction transistor - Wikipedia

    en.wikipedia.org/wiki/Bipolar_junction_transistor

    Simplified cross section of a planar NPN bipolar junction transistor. BJTs consists of three differently doped semiconductor regions: the emitter region, the base region and the collector region. These regions are, respectively, p type, n type and p type in a PNP transistor, and n type, p type and n type in an NPN transistor.

  3. Insulated-gate bipolar transistor - Wikipedia

    en.wikipedia.org/wiki/Insulated-gate_bipolar...

    NPN(P) structure Modes of operation: Reverse blocking, forward blocking, forward conducting: On-state, off-state Design structure: Coupled transistors (PNP and NPN) Combined bipolar and MOSFET features Carrier source: Two sources of carriers: One source of carriers Turn-on voltage: N/A: Low gate voltage required Turn off loss: Higher: Lower ...

  4. NPN - Wikipedia

    en.wikipedia.org/wiki/NPN

    NPN may refer to: Science and technology. Next Protocol Negotiation, in computer networking; Non-protein nitrogen, an animal feed component; NPN transistor;

  5. National Provider Identifier - Wikipedia

    en.wikipedia.org/wiki/National_Provider_Identifier

    A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).

  6. Texas Instruments Power - Wikipedia

    en.wikipedia.org/wiki/Texas_Instruments_Power

    Texas Instruments Power, known more popularly by its acronym TIP, is a series of bipolar junction transistors manufactured by Texas Instruments. [1] The series was introduced in the 1960s, and still sees some use today due to their simplicity, their durability, and their ease of use. [2]

  7. Nitrogen and Non-Protein Nitrogen's effects on Agriculture

    en.wikipedia.org/wiki/Nitrogen_and_Non-Protein...

    NPN can also be used to artificially raise crude protein values, which are measured based on nitrogen content, as protein is about 16% nitrogen and the only major component of most food that contains nitrogen is protein. The source of NPN is typically a chemical feed additive, or sometimes chicken waste, [7] [8] and cattle manure.

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.