NVIDIA Corporation
Dynamic voltage-frequency scaling to limit power transients

Abstract:

A clocked electronic device includes first and second control systems. The first control system is configured to decrease clock frequency in the device in response to decreasing supply voltage. The second control system is responsive to clock lag in the device and to an amount of current drawn through the device. It is configured to increase the supply voltage in response to increasing clock lag, but to decrease the supply voltage when the current drawn through the device exceeds an operational threshold.