Importance

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Abstract

Techniques for managing the distribution of power among competing electronic devices such as semiconductor die are presented. Each device may be connected to a common power supply and sources a current on a load bus based on an estimated current consumption of a next desired state. However, before doing this, the device performs an internal check to determine whether there is a sufficient available current. The device decreases a logical value of the system current specification by the increase in current which is desired. A resulting voltage (Vspec) is compared to a voltage of the load bus (Vcontact). If Vcontact<=Vspec, the device sources current on the load bus to signal other devices that the available current is reduced. If a conflict is detected with another device, an arbitration process is performed. A linear or binary search algorithm can be used based on a respective device priority.

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First Claim