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  2. Constant power circuit - Wikipedia

    en.wikipedia.org/wiki/Constant_power_circuit

    The curve representing the power limit for the load for the range of current and voltage magnitudes in which the load circuit may safely operate Battery chargers are the largest single application for current controlled power supplies requiring either constant-current or constant-power output characteristics.

  3. Power supply - Wikipedia

    en.wikipedia.org/wiki/Power_supply

    A modern computer power supply is a switch-mode power supply that converts AC power from the mains supply, to several DC voltages. Switch-mode supplies replaced linear supplies due to cost, weight, efficiency and size improvements. The diverse collection of output voltages also have widely varying current draw requirements.

  4. 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 ...

  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. Load regulation - Wikipedia

    en.wikipedia.org/wiki/Load_regulation

    Load regulation is the capability to maintain a constant voltage (or current) level on the output channel of a power supply despite changes in the supply's load (such as a change in resistance value connected across the supply output). [1] [2]

  7. Current limiting - Wikipedia

    en.wikipedia.org/wiki/Current_limiting

    A switched-mode power supply operating at the current limit with the output short-circuited does not have increased power dissipation in the power transistor(s), so foldback current limiting is an application feature only rather than one that also prevents a load fault from also destroying the power supply. The safety benefit of reducing the ...

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