Patent ID: 6738915
Filing Date: 2004-05-18
Classification: G06F,H05K

Abstract:
A circuit board adapted to receive at least a first power voltage and a second power voltage and having circuitry for supplying to an element of the circuit board in a predictable sequence the first power voltage and then the second power voltage, comprising:an electrical connector for receiving the first power voltage and the second power voltage, wherein the first power voltage and the second power voltage are generated externally from the circuit board; a sequencing circuit electrically coupled to the electrical connector, wherein the electrical connector is adapted to supply the first power voltage and thereafter supply the second power voltage to the sequencing circuit, the sequencing circuit comprising: a first circuit for receiving the first power voltage and supplying the first power voltage to the element of the circuit board; and a second circuit electrically coupled to the first circuit, and the second circuit for supplying the second power voltage to the element of the circuit board, responsive to receiving a signal indicating that the sequencing circuit is receiving the first power voltage, wherein the element of the circuit board is electrically coupled to the sequencing circuit and is adapted to receive the first power voltage and the second power voltage in sequence.