Dual path break before make digital circuit

摘要

The present invention provides a redundant break before make digital circuit. Redundant circuits are used to provide a path to ground for a charging signal when a fault condition exists. The fault condition may be based on characteristics relating to the signal or the chip itself. For example, a fault condition may occur when a temperature measured on the chip exceeds a predetermined threshold. A fault condition may also occur when the signal is above or below a predetermined threshold. For example, a fault condition may occur when the current of the signal is above a predetermined level. The fault conditions are monitored and the state of a switch that couples the cell to the charging path is monitored. When the switch is open and a fault condition has occurred, there are redundant paths to ensure that a switch closes to provide the path to ground during the fault condition.