Patent ID: 7538559

Claim:
A system comprising: a microelectronic device including first transistors and second transistors; a power supply electrically connected to the first and second transistors to provide power to the first and second transistors such that current flows through the first and second transistors; a switch in operable communication with the second transistors, the switch allowing current to flow from the power supply through the second transistors when in a first mode of operation and preventing current from flowing from the power supply through the second transistors when in a second mode of operation; control circuitry in operable communication with the switch; current sensing circuitry coupled to the first transistors to detect a test amount of current flowing through at least one of the first transistors when the switch is in the first mode of operation; and a processor coupled to the current sensing circuitry and configured to calculate a reduced amount of current flowing through the first transistors when the switch is in the first mode of operation based on the test amount of current and calculate a combined amount of current flowing through the first and second transistors when the switch is in the second mode of operation based on the reduced amount of current.