摘要:
A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane.
摘要:
A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane.
摘要:
A lamp driving circuit includes a first printed circuit board and a second printed circuit board. The first printed circuit board includes a switching unit for switching an input power source, a control unit for controlling the switching unit, an inverter transformer connected to the switching unit, and a voltage conversion unit for converting a feedback reference current for controlling an output current applied from the inverter transformer into a reference voltage and applying the reference voltage to the control unit. The voltage conversion unit is connected to the inverter transformer and the control unit. The voltage conversion unit is connected to a first feedback terminal. The second printed circuit board includes a plurality of balance coils connected to a plurality of lamps so that the same output currents are applied to the lamps, a second feedback terminal connected to the first feedback terminal, and a current conversion unit connected to the second feedback terminal.
摘要:
The present invention provides a connector including: a printed circuit board including a guide hole and a locking hole; a plurality of connection pads provided on a top surface of the printed circuit board; a housing which is mounted on the printed circuit board and including a guide inserted into the guide hole and a locking unit inserted into the locking hole, which are protrudingly formed on a bottom surface of the housing; a plurality of terminals inserted and fixed into the housing so that one ends are positioned inside the housing and the other ends are projected to an outside of the housing; and terminal units in contact with top surfaces of the connection pads by being connected to the one ends of the terminals inside the housing.
摘要:
The present invention provides a connector including: a printed circuit board including a guide hole and a locking hole; a plurality of connection pads provided on a top surface of the printed circuit board; a housing which is mounted on the printed circuit board and including a guide inserted into the guide hole and a locking unit inserted into the locking hole, which are protrudingly formed on a bottom surface of the housing; a plurality of terminals inserted and fixed into the housing so that one ends are positioned inside the housing and the other ends are projected to an outside of the housing; and terminal units in contact with top surfaces of the connection pads by being connected to the one ends of the terminals inside the housing.
摘要:
The present invention provides a lamp driving circuit including a first printed circuit board and a second printed circuit board, wherein the first printed circuit board includes a switching unit for switching an input power source; a control unit for controlling the switching unit; an inverter transformer connected to the switching unit; and a voltage conversion unit for converting a feedback reference current for controlling an output current applied from the inverter transformer into a reference voltage to apply the reference voltage to the control unit by being connected to the inverter transformer, the voltage conversion unit is connected to a first feedback terminal, and the second printed circuit board includes a plurality of balance coils connected to a plurality of lamps so that the same output currents are applied to the lamps; and a current conversion unit connected to a second feedback terminal.