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  2. Current source - Wikipedia

    en.wikipedia.org/wiki/Current_source

    Conversely, a current source provides a constant current, as long as the impedance of the load is sufficiently lower than the current source's parallel impedance (which is preferably very high and ideally infinite). In the case of transistor current sources, impedances of a few megohms (at low frequencies) are typical. Because power is current ...

  3. LM317 - Wikipedia

    en.wikipedia.org/wiki/LM317

    Without a heat sink at an ambient temperature at 50 °C, a maximum power dissipation of (T J-T A)/R θJA = ((125-50)/80) = 0.98 W can be permitted.. In a constant voltage mode with an input voltage source at V IN at 34 V and a desired output voltage of 5 V, the maximum output current will be P MAX / (V IN-V O) = 0.98 / (34-5) = 32 mA.

  4. Electronic symbol - Wikipedia

    en.wikipedia.org/wiki/Electronic_symbol

    An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to country, or engineering ...

  5. Cutoff voltage - Wikipedia

    en.wikipedia.org/wiki/Cutoff_voltage

    Under a constant-current discharge at 100mA, energy extracted from the battery is proportional to the area under the graph: energy extracted before reaching a 1.3V cutoff additional energy extracted before reaching a 1.1V cutoff

  6. File:Current Source.svg - Wikipedia

    en.wikipedia.org/wiki/File:Current_Source.svg

    English: In France, this symbol stands for a voltage source (+ at the end of the arrow), the symbol for a current source is two circles and an arrow. Français : En France, ce symbole désigne un générateur de tension (+ à la pointe de la flèche), le symbole pour un générateur de courant est composé de deux cercles et d'une flèche.

  7. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  8. Generator (circuit theory) - Wikipedia

    en.wikipedia.org/wiki/Generator_(circuit_theory)

    Non-ideal voltage source model (left) and non-ideal current source model (right) A generator in electrical circuit theory is one of two ideal elements: an ideal voltage source, or an ideal current source. [1] These are two of the fundamental elements in circuit theory. Real electrical generators are most commonly modelled as a non-ideal source ...

  9. Constant current - Wikipedia

    en.wikipedia.org/wiki/Constant_current

    In electronics, a constant current system is one that varies the voltage across a load to maintain a constant electric current.When a component is indicated to be driven by a constant current, the driver circuit is, in essence, a current regulator and must appear to the component as a current source of suitable reliability.