enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Current source - Wikipedia

    en.wikipedia.org/wiki/Current_source

    Thus, the load current is constant (neglecting the output resistance of the transistor due to the Early effect) and the circuit operates as a constant current source. As long as the temperature remains constant (or doesn't vary much), the load current will be independent of the supply voltage, R1 and the transistor's gain.

  3. Generator (circuit theory) - Wikipedia

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

    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 consisting of a combination of an ideal source and a resistor.

  4. Current-mode logic - Wikipedia

    en.wikipedia.org/wiki/Current-mode_logic

    Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signaling of digital data. The basic principle of CML is that current from a constant current generator is steered between two alternate paths depending on whether a logic zero or logic one is being represented.

  5. 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.

  6. Widlar current source - Wikipedia

    en.wikipedia.org/wiki/Widlar_current_source

    Current in the reference transistor Q 1 is held constant, thereby fixing the compliance voltage. Plots assume I C1 = 10 mA, V A = 50 V, V CC = 5 V, I S = 10 fA, β 1, = 100 independently of current. The current dependence of the resistances r π and r O is discussed in the article hybrid-pi model. The current dependence of the resistor values is:

  7. Electric generator - Wikipedia

    en.wikipedia.org/wiki/Electric_generator

    The current flowed out through the sliding spring contact m, through the external circuit, and back into the center of the disk through the axle. Main article: Homopolar generator The operating principle of electromagnetic generators was discovered in the years of 1831–1832 by Michael Faraday .

  8. Metadyne - Wikipedia

    en.wikipedia.org/wiki/Metadyne

    Tustin has shown that the input and output power are the same, and so the machine transforms the constant-voltage input into a constant-current output. As with the metadyne generator, the Metadyne transformer can be partially compensated, and will continue to operate as a constant-current device until the compensation exceeds 97 per cent. [13]

  9. Direct current - Wikipedia

    en.wikipedia.org/wiki/Direct_current

    A direct current circuit is an electrical circuit that consists of any combination of constant voltage sources, constant current sources, and resistors. In this case, the circuit voltages and currents are independent of time. A particular circuit voltage or current does not depend on the past value of any circuit voltage or current.