DC-DC Converters Explained: Buck (Step-Down) vs. Boost (Step-Up) Circuits! (Circuits #32 & #33)

Описание: Ever wonder how your 28V power supply can run a 5V chip? Or how a 5V USB pack can power a 15V device? The answer is DC-DC converters!

This video visually compares the two most fundamental topologies:

The Buck Circuit (#32): "Bucks" (steps down) a high voltage (28V) to a low, stable voltage (~4.6V).

The Boost Circuit (#33): This is the magic! It "boosts" (steps up) a low voltage (5V) to a much higher one (~15.5V).

Learn how "chopping" DC and storing energy in an inductor makes this voltage magic possible. This is the core of all modern switching power supplies (SMPS). Part of our '100 Essential Circuits' series!

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