POWER SUPPLY CIRCUIT, CHARGE CIRCUIT, CHARGING SYSTEM, POWER SUPPLYING METHOD, AND CHARGING METHOD

摘要

A power supply circuit includes a first power supply, which is electrically coupled to a first power supply terminal and a first ground terminal, and a shortcircuit line. The first power supply is adapted to supply the first power supply terminal with a DC voltage having a higher electric potential than the first ground terminal. The shortcircuit line is adapted to short-circuit a first data terminal and a second data terminal. The power supply circuit further includes a second power supply electrically coupled to the first ground terminal and the shortcircuit line. The second power supply is adapted to supply the first data terminal and the second data terminal with a negative voltage having a lower electric potential than the first ground terminal.

主权项

1. A power supply circuit comprising:
a first power supply adapted to be electrically coupled to a first power supply terminal and a first ground terminal, wherein the first power supply supplies the first power supply terminal with a DC voltage having a higher electric potential than the first ground terminal; a shortcircuit line adapted to short-circuit a first data terminal and a second data terminal; and a second power supply adapted to be electrically coupled to the first ground terminal and the shortcircuit line, wherein the second power supply supplies the first data terminal and the second data terminal with a negative voltage having a lower electric potential than the first ground terminal.