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  2. Impedance matching - Wikipedia

    en.wikipedia.org/wiki/Impedance_matching

    Practical impedance-matching devices will generally provide best results over a specified frequency band. The concept of impedance matching is widespread in electrical engineering, but is relevant in other applications in which a form of energy, not necessarily electrical, is transferred between a source and a load, such as in acoustics or optics.

  3. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Nintendo Game & Watch image file 4E 45 53: NES: 0 nes Nintendo Entertainment System image file A0 32 41 A0 A0 A0: 2A: 0x165A4 d64 Commodore 64 1541 disk image (D64 format) 47 53 52 2D 31 35 34 31: GCR-1541: 0 g64 Commodore 64 1541 disk image (G64 format) A0 33 44 A0 A0: 3D: 0x61819 d81 Commodore 64 1581 disk image (D81 format)

  4. Composite image filter - Wikipedia

    en.wikipedia.org/wiki/Composite_image_filter

    A composite image filter is an electronic filter consisting of multiple image filter sections of two or more different types.. The image method of filter design determines the properties of filter sections by calculating the properties they would have in an infinite chain of identical sections.

  5. Network analysis (electrical circuits) - Wikipedia

    en.wikipedia.org/wiki/Network_analysis...

    A network of impedances with more than two terminals cannot be reduced to a single impedance equivalent circuit. An n-terminal network can, at best, be reduced to n impedances (at worst ()). For a three terminal network, the three impedances can be expressed as a three node delta (Δ) network or four node star (Y) network.

  6. m-derived filter - Wikipedia

    en.wikipedia.org/wiki/M-derived_filter

    The image impedance Z iT is referred to as the mid-series image impedance. Similarly, a "mid-shunt" section is derived by cutting through the middle of the shunt admittance Y and results in a Π section with a mid-shunt image impedance. A "series m-derived section" is shorthand for "mid-series derived ladder type section".

  7. Image impedance - Wikipedia

    en.wikipedia.org/wiki/Image_impedance

    The definition of image impedance for a two-port network is the impedance, Z i 1, seen looking into port 1 when port 2 is terminated with the image impedance, Z i 2, for port 2. In general, the image impedances of ports 1 and 2 will not be equal unless the network is symmetrical (or anti-symmetrical) with respect to the ports.

  8. Equivalent impedance transforms - Wikipedia

    en.wikipedia.org/wiki/Equivalent_impedance...

    Equivalent unbalanced and balanced networks. The impedance of the series elements in the balanced version is half the corresponding impedance of the unbalanced version. Fig. 3. To be balanced, a network must have the same impedance in each "leg" of the circuit. A 3-terminal network can also be used as a 2-port.

  9. Zobel network - Wikipedia

    en.wikipedia.org/wiki/Zobel_network

    Any impedance network, Z, can be used in a Bode network, just as with a Zobel network, but the high pass section shown for correcting high-end frequencies is the most common. A Bode network terminated in a variable resistor can be used to produce a variable impedance at the input terminals of the network.

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