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Invention Grant
US09048724B2 Controlled switch for opening or closing on demand a section of an electrical circuit of a power stage 有权
控制开关，用于根据需要打开或关闭功率级的电路的一部分

Controlled switch for opening or closing on demand a section of an electrical circuit of a power stage
Abstract:
The invention proposes a voltage regulating device having a switch in an electrical circuit between a first node (30, 140) and a second node (40, 130), comprising a first field effect transistor (21, 110) and a second field effect transistor (22, 120) connected in cascade. The switch is controlled by: —setting the gate (G1,G3) of the first transistor to a first electrical potential, and, —to close the switch, setting the gate (G2, G4) of the second transistor to the first potential, or —to open the switch, setting the gate of the second transistor to the electrical potential of the second node, with the difference between the first potential and the second potential then being adapted to allow opening the first transistor and the second transistor. The switch can be used in a switched-mode power supply.
Abstract(Chinese):

本发明提出了一种电压调节装置，其具有在第一节点（30,140）和第二节点（40,130）之间的电路中的开关，包括第一场效应晶体管（21,110）和第二场效应晶体管 （22,120）级联连接。 该开关通过以下方式控制： - 将第一晶体管的栅极（G1，G3）设置为第一电位，并且 - 关闭开关，将第二晶体管的栅极（G2，G4）设置为第一电位， 或 - 打开所述开关，将所述第二晶体管的栅极设置为所述第二节点的电位，所述第一电位和所述第二电位之间的差值适于允许打开所述第一晶体管和所述第二晶体管。 开关可用于开关电源。

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