Split Power Supply Bias with Kill Switch

摘要

Methods and systems for electrical bias generation are disclosed. Two or more different voltage levels can be created, one above a mid-rail value and one below the mid-rail value for each pair of voltage levels. Such voltage levels can be used to power processes in other circuits by providing a safe but adequate voltage value. Transition control between an on state and an off state for a power supply can also be implemented using this bias generation.

主权项

1. A method to regulate voltage levels comprising:
creating from a supply voltage an above-ground voltage and a below-Vcc voltage, said above-ground voltage being less than the supply voltage and higher than an average of the supply voltage and a ground voltage level, said below-Vcc voltage being less than the average of the supply voltage and a ground voltage level and higher than the ground voltage level; providing at least one load connected to the supply voltage, the above-ground voltage, and the below-Vcc voltage, the at least one load having a process voltage limit; and varying at least one of the above-ground voltage and the below-Vcc voltage, based on at least the process voltage limit.