A power supply control system for a computer.

摘要

A power supply control system for a portable computer, the computer having a central processing unit (CPU) (11), and being operable in response to power supplied from a rechargeable battery (31A) or an alternating current (AC) adapter (29). A charge unit (311) is provided for charging the battery (31A) and a power control (PC) microprocessor (306) controls the charge unit (311) independently of the main CPU (11), in accordance with various system status signals, for example the voltage output of the AC adapter (29), a low charge state of the battery (31A) or the output of the charge unit (311) itself. The PC microprocessor (306) may also control the supply of power to each of the components in the computer and indicate abnormal states to an operator.