公开(公告)号：US20080252273A1

公开(公告)日：2008-10-16

申请号：US12103125

申请日：2008-04-15

申请人： Young -Jin Woo ,  Gyu-Ha Cho

发明人： Young -Jin Woo ,  Gyu-Ha Cho

IPC分类号： G05F1/575

CPC分类号： H02M1/34 ,  H02M3/158 ,  H02M2001/342 ,  Y02B70/1491

摘要： The present invention is related to a dc/dc converter. A dc/dc converter according to the present invention comprises an inductor, a switch unit connected to both ends of the inductor and charging or retrieving an energy into the inductor, an output unit comprising an output switch unit outputting the energy charged in the inductor into an output end and a first comparison unit controlling an on-off of the output switch unit, a freewheeling switch unit connected to both ends of the inductor and returning a residual current remained in the inductor, a current sense unit sensing the residual current, an offset current generation unit generating an offset current, an error amplifier comparing the residual current inputted from the current sense unit to the offset current generated in the offset current unit and outputting the error signal, and a control unit controlling the switch unit with the error signal inputted from the error amplifier.

摘要翻译： 本发明涉及一种直流/直流转换器。 根据本发明的DC / DC转换器包括电感器，连接到电感器两端的开关单元，并将能量充电或取回到电感器中;输出单元，包括输出开关单元，输出电感器中充入的能量， 输出端和控制输出开关单元的开 - 关的第一比较单元，连接到电感器的两端并返回残留在电感器中的剩余电流的续流开关单元，感测剩余电流的电流感测单元， 偏移电流产生单元产生偏移电流，误差放大器将从电流感测单元输入的剩余电流与在偏移电流单元中产生的偏移电流进行比较并输出误差信号;以及控制单元，其使用误差信号 从误差放大器输入。

公开(公告)号：US07786715B2

公开(公告)日：2010-08-31

申请号：US12103125

申请日：2008-04-15

申请人： Young -Jin Woo ,  Gyu-Ha Cho

发明人： Young -Jin Woo ,  Gyu-Ha Cho

IPC分类号： G05F1/40 ,  G05F1/10

CPC分类号： H02M1/34 ,  H02M3/158 ,  H02M2001/342 ,  Y02B70/1491

摘要： The present invention is related to a dc/dc converter. A dc/dc converter according to the present invention comprises an inductor, a switch unit connected to both ends of the inductor and charging or retrieving an energy into the inductor, an output unit comprising an output switch unit outputting the energy charged in the inductor into an output end and a first comparison unit controlling an on-off of the output switch unit, a freewheeling switch unit connected to both ends of the inductor and returning a residual current remained in the inductor, a current sense unit sensing the residual current, an offset current generation unit generating an offset current, an error amplifier comparing the residual current inputted from the current sense unit to the offset current generated in the offset current unit and outputting the error signal, and a control unit controlling the switch unit with the error signal inputted from the error amplifier.

摘要翻译： 本发明涉及一种直流/直流转换器。 根据本发明的DC / DC转换器包括电感器，连接到电感器两端的开关单元，并将能量充电或取回到电感器中;输出单元，包括输出开关单元，输出电感器中充入的能量， 输出端和控制输出开关单元的开 - 关的第一比较单元，连接到电感器的两端并返回残留在电感器中的剩余电流的续流开关单元，感测剩余电流的电流感测单元， 偏移电流产生单元产生偏移电流，误差放大器将从电流感测单元输入的剩余电流与在偏移电流单元中产生的偏移电流进行比较并输出误差信号;以及控制单元，其使用误差信号 从误差放大器输入。