Series power supply circuits

Abstract

The present disclosure provides a series power supply system, comprising a first DC power supply; a second DC power supply; a plurality of to-be-powered circuits connected to the first DC power supply in series, a first power for each of the to-be-powered circuits being supplied by the first DC power supply, a second power for each of the to-be-powered circuits being supplied by the second DC power supply; and a protection circuit respectively including a first terminal connected to the first DC power supply and a second terminal connected to the second DC power supply; wherein when the voltage difference between one or more of the to-be-powered circuits exceeds a threshold value, the protection circuit protects the plurality of to-be-powered circuits from burning.

Dependencies are inferred from the claim text.