Power supply start-up mechanism, apparatus, and method for controlling activation of power supply circuits

摘要

A power supply start-up sequencing mechanism for controlling activation of a plurality of power supply circuits with a predetermined timing is disclosed. The mechanism comprises a time value generator arranged to provide a time value signal; and for each of the power supply circuits, a logic circuit arranged to receive the time value signal and from the received signal provide an activation signal to the respective power supply circuit, wherein the respective logic circuit is associated with a start timing value for the respective power supply circuit such that the activation signal is provided when the associated start timing value coincides with the received time value signal. An apparatus comprising such a mechanism, and a method for controlling activation of a plurality of power supply circuits are also disclosed.

主权项

1. A power supply start-up sequencing mechanism for controlling activation of a plurality of power supply circuits with a predetermined timing, the mechanism comprising;
a time value generator arranged to provide a time value signal; and for each of the power supply circuits, a logic circuit arranged to receive the time value signal, and from the received signal, provide an activation signal directly to its respective power supply circuit, wherein the activation signals collectively control a startup sequence encompassing all of said plurality of power supply circuits, wherein
the respective logic circuit is associated with a start timing value for the respective power supply circuit and whereinthe activation signal is provided when the associated start timing value coincides with the received time value signal.