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what core type to use for SMPS
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Siwastaja:

--- Quote from: Hiemal on May 11, 2019, 09:12:12 am ---Hiccup mode is also not a light load option; it's used in the event of an overload condition, to prevent the controller from destroying the output switches by "hiccuping" (stopping) the output for 128 cycles, instead of the alternative where it uses cycle-by-cycle current limiting by skipping individual cycles.
--- End quote ---

Hickup is not to protect the switches, and not an alternative for cycle-by-cycle current limiting. Cycle-by-cycle current limiting - usually not disableable - by itself protects the switches and can provide indefinite constant current (albeit inaccurate) output, as long as your thermal design is OK. These current limiting events are not failure or error conditions.

Hickupping is an addition on top, whenever indefinite constant current output is unwanted. Most often, it counts cycle-by-cycle current limiting events, and sleeps if exceeded, dropping the average current very much lower than the actual current limit.

If you charge batteries, drive LEDs or run motors in torque-limited mode, you want the current-limited mode, but in most other uses, current-limited mode normally lasts for a very short time (think about charging the capacitors), and anything longer is a failure (short circuit). Hickup mode is there to mostly protect the load (the unwanted short), which could be dissipating a lot, while automagically retrying to see if the short has been removed. Another alternative is a "latched" protection, requiring a power-off sequence to reset.

Light load pulse skipping looks similar to hickup, but is there for a different reason, usually with different timings, and is important to distinguish as a separate feature.
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