公开(公告)号：US08749937B2

公开(公告)日：2014-06-10

申请号：US13242005

申请日：2011-09-23

申请人： Toshihiro Nakamoto ,  Satoshi Takahashi

发明人： Toshihiro Nakamoto ,  Satoshi Takahashi

IPC分类号： H02H9/08

CPC分类号： G09G3/3611 ,  G09G2330/025 ,  G09G2330/04

摘要： Provided is a display device which enables the automatic return of a power source circuit after the power source circuit is protected from an overcurrent, at low cost. The display device includes: an output transistor having a base to which a drive voltage signal is inputted and outputting a drive voltage from an emitter; a first transistor being turned on when an overcurrent flows into the output transistor; and a second transistor being turned on and turning off the output transistor when the first transistor is turned on, the first and second transistors are repeatedly turned on and off so as to make the output transistor intermittently operate within an overcurrent operation period, and the first and second transistors are turned off and the output transistor automatically returns to a normal operation when an operation period is shifted from the overcurrent operation period to a normal operation period.

摘要翻译： 提供一种显示装置，其能够在以低成本保护电源电路免受过电流之后自动返回电源电路。 显示装置包括：输出晶体管，具有输入驱动电压信号的基极，并从发射极输出驱动电压; 当过电流流入输出晶体管时，第一晶体管导通; 并且当第一晶体管导通时，第二晶体管导通和截止输出晶体管，第一和第二晶体管被重复导通和截止，以使输出晶体管在过电流操作时段内间歇地工作，并且第一晶体管第一 并且第二晶体管截止，并且当操作周期从过电流操作周期转移到正常操作周期时，输出晶体管自动返回到正常操作。

公开(公告)号：US20120075764A1

公开(公告)日：2012-03-29

申请号：US13242005

申请日：2011-09-23

申请人： Toshihiro Nakamoto ,  Satoshi Takahashi

发明人： Toshihiro Nakamoto ,  Satoshi Takahashi

IPC分类号： H02H3/093

CPC分类号： G09G3/3611 ,  G09G2330/025 ,  G09G2330/04

摘要： Provided is a display device which enables the automatic return of a power source circuit after the power source circuit is protected from an overcurrent, at low cost. The display device includes: an output transistor having a base to which a drive voltage signal is inputted and outputting a drive voltage from an emitter; a first transistor being turned on when an overcurrent flows into the output transistor; and a second transistor being turned on and turning off the output transistor when the first transistor is turned on, the first and second transistors are repeatedly turned on and off so as to make the output transistor intermittently operate within an overcurrent operation period, and the first and second transistors are turned off and the output transistor automatically returns to a normal operation when an operation period is shifted from the overcurrent operation period to a normal operation period.

摘要翻译： 提供一种显示装置，其能够在以低成本保护电源电路免受过电流之后自动返回电源电路。 显示装置包括：输出晶体管，具有输入驱动电压信号的基极，并从发射极输出驱动电压; 当过电流流入输出晶体管时，第一晶体管导通; 并且当第一晶体管导通时，第二晶体管导通和截止输出晶体管，第一和第二晶体管被重复导通和截止，以使输出晶体管在过电流操作时段内间歇地工作，并且第一晶体管第一 并且第二晶体管截止，并且当操作周期从过电流操作周期转移到正常操作周期时，输出晶体管自动返回到正常操作。