Patent ID: 6437544
Filing Date: 2002-08-20
Classification: H02J

Abstract:
An improved serial stage power supply combination for emergency auxiliary power supply, comprised of a rechargeable secondary battery, a super capacitor or any other type of storage to function as an emergency charging source; a conduction train for charging purpose; an optional charging control circuit and a diode to prevent inverse voltage on the output side are provided to form a first storage unit, which replaces the conventional disposal primary battery, to further form with a secondary storage in the load coupled to the output a DC power supply system containing at least two stages of rechargeable secondary battery and allowing flexible combination with other rechargeable storage to execute serial stage power supply essentially comprised of:a charging source 100: related to a DC source or a DC source converted from rectified AC to charge the emergency auxiliary power supply 101 or to charge the secondary rechargeable storage in the load, or to supply power to the load; a conduction train 102: related to a conduction train of specific structure to execute positive-to-positive and negative-to-negative coupling for separated cut-off or incorporated conduction; and configured in plug and socket structure or that similar to an incorporation structure by insertion to transmit power from the charging source 100 to the emergency auxiliary power supply 101; another conduction train 103: related to a conduction train of specific structure to execute positive-to-positive and negative-to-negative coupling for separated cut-off or incorporated conduction; and configured in plug and socket structure or that similar to an embedded incorporation structure to transmit power from the emergency auxiliary power supply 101 to the load unit 104; the emergency auxiliary power supply 101: comprised of rechargeable secondary battery, super capacitor or other storage 105, having a capacity greater than that of another storage 106 in the load unit 104 and its charging input being directly connected to a pin 107 from the conduction train 102, or as required a charging control circuit 108 being provided between the charging input and the pin 107; its output being directly connected to a pin 109 from another conduction train 103, or as required a separation diode 110 being provided between the output and the pin 109; a corresponding pin 111 to the pin 107 being conducted to the charging source 100 and a corresponding pin 112 to the pin 109 being conducted to the load unit 104; a charging control circuit 108: related to a mechano-electronic or solid state electronic device to fully or partially control charging current, voltage and charging time; a separation diode 110: one or more than one diode element connected in series or serial-parallel between the emergency auxiliary power supply 101 and its output, or one or more than one diode connected in series or series-parallel to regulate the output voltage of the emergency auxiliary power supply 101 by means of its positive drop as required; and the load unit 104: including a rechargeable storage 106 comprised a rechargeable secondary battery, super capacitor other storage device, incorporated to a communication, information, home electric appliance, personal electric appliance, instrument, power tool and any other load 113 driven by the load unit 104.