FIELD: physics.
SUBSTANCE: invention relates to power distribution systems (for example, PoE). For this purpose, device (2) (for example, PD) containing at least one capacitor (for example, smoothing capacitor), parallel to device load (26), provided with power from power source (1) (for example, PSE) is proposed. Power source (1) is configured to provide power to device (2) when device (2) consumes at least minimum current (for example, MPS) from power supply (1). Device (2) determines, by means of voltage measurement on at least one capacitor, whether current (partially) is consumed from at least one capacitor. In this case, device (2) is controlled to consume current so that at least minimum current is consumed from source (1) of supply and power source (1) continues to provide power to device (2).
EFFECT: technical result is reduction of consumed power losses.
15 cl, 10 dwg
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