专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070222422A1 POWER SUPPLY DEVICE AND ELECTRICAL DEVICE EQUIPPED WITH THE SAME 审中-公开
标题翻译：电源装置及其装置
公开(公告)号：US20070222422A1
公开(公告)日：2007-09-27
申请号：US11688313
申请日：2007-03-20
申请人： Hiroki INOUE , Kenya KONDO
发明人： Hiroki INOUE , Kenya KONDO
IPC分类号： G05F1/00
CPC分类号： G05F1/573
摘要： A power supply device includes a first transistor connected in series between an input terminal to which an input voltage is applied and an output terminal from which an output voltage is led out; a second transistor connected between the input terminal and the output terminal in parallel with the first transistor, and which is arranged to supply a portion of the output current to a load as a detection current; a control voltage production unit arranged to produce a control voltage of the first and second transistors so that the output voltage is maintained at a specified target value; a first constant current source arranged to produce a first constant current; a variable current source arranged to produce a variable current in accordance with the output voltage; a first resistor arranged to produce a reference voltage in accordance with a combined current of the first constant current and the variable current; a second constant current source arranged to produce a second constant current; a second resistor arranged to produce a detection voltage in accordance with a combined current of the second constant current and the detection current; and an offset circuit arranged to apply an offset to the control voltage in accordance with the reference voltage and the detection voltage.
摘要翻译：电源装置包括串联连接在施加输入电压的输入端子和输出电压被输出的输出端子之间的第一晶体管; 连接在所述输入端子和所述输出端子之间的第二晶体管，与所述第一晶体管并联，并且被配置为将一部分所述输出电流提供给负载作为检测电流; 控制电压产生单元，其布置成产生第一和第二晶体管的控制电压，使得输出电压保持在指定的目标值; 布置成产生第一恒定电流的第一恒流源; 可变电流源，被布置成根据输出电压产生可变电流; 第一电阻器，被布置成根据第一恒定电流和可变电流的组合电流产生参考电压; 布置成产生第二恒定电流的第二恒流源; 第二电阻器，被布置成根据第二恒定电流和检测电流的组合电流产生检测电压; 以及偏置电路，被配置为根据所述参考电压和所述检测电压向所述控制电压施加偏移。

IPRDB

热门服务

关于我们

友情链接

联系方式