公开(公告)号：US20120044021A1

公开(公告)日：2012-02-23

申请号：US12975824

申请日：2010-12-22

Applicant: Sung-Yau Yeh ,  Kuo-Jen Hsu

Inventor： Sung-Yau Yeh ,  Kuo-Jen Hsu

IPC: H03F3/45

CPC classification number: H03F3/45219 ,  H03F1/0205 ,  H03F3/3028 ,  H03F2200/297 ,  H03F2203/30021

Abstract: A differential amplifier circuit includes: P-type and N-type differential input units outputting respectively first and second outputs in response to first and second input voltages; a P-type current mirror circuit driven by the second output; an N-type current mirror circuit driven by the first output; an output unit outputting an output voltage in response to control outputs from the P-type and N-type current mirror circuits; a first sub-current source including first and second P-type transistors connected in series; and a second sub-current source including first and second N-type transistors connected in series. Control ends of the second P-type and second N-type transistors receive the control outputs from the P-type and N-type current mirror circuits, respectively. Control ends of the first P-type and first N-type transistors are coupled to a common node between the first and second P-type transistors, and a common node between the first and second N-type transistors, respectively.

Abstract translation: 差分放大电路包括：P型和N型差分输入单元，响应于第一和第二输入电压分别输出第一和第二输出; 由第二输出驱动的P型电流镜电路; 由第一输出驱动的N型电流镜电路; 输出单元响应于来自P型和N型电流镜电路的控制输出而输出输出电压; 包括串联连接的第一和第二P型晶体管的第一子电流源; 以及包括串联连接的第一和第二N型晶体管的第二子电流源。 第二P型和第二N型晶体管的控制端分别从P型和N型电流镜电路接收控制输出。 第一P型和第N型晶体管的控制端分别耦合到第一和第二P型晶体管之间的公共节点，以及第一和第二N型晶体管之间的公共节点。

公开(公告)号：US07679421B1

公开(公告)日：2010-03-16

申请号：US12277259

申请日：2008-11-24

Applicant: Kuo-Jen Hsu

Inventor： Kuo-Jen Hsu

IPC: H03L5/00

CPC classification number: H03K3/356113

Abstract: The present invention provides a level shift circuit capable of operating at low input voltage. The level shift circuit comprises: a first switch element coupled to a first output terminal, a second switch element coupled to a second output terminal, a third switch element coupled to the second output terminal and the first output terminal, a fourth switch element coupled to the first output terminal and the second output terminal, a first current source module for letting a current passing through the third switch element smaller than a current passing through the first switch element when the first switch element and the third switch element are conducted, and a second current source module for let a current passing through the fourth switch element smaller than a current passing through the second switch element when the second switch element and the fourth switch element are conducted.

Abstract translation: 本发明提供能够在低输入电压下工作的电平移位电路。 电平移位电路包括：耦合到第一输出端的第一开关元件，耦合到第二输出端的第二开关元件，耦合到第二输出端和第一输出端的第三开关元件，耦合到 第一输出端子和第二输出端子，当第一开关元件和第三开关元件被导通时，用于使通过第三开关元件的电流小于通过第一开关元件的电流的第一电流源模块，以及 第二电流源模块，用于当第二开关元件和第四开关元件被导通时，使通过第四开关元件的电流小于通过第二开关元件的电流。

公开(公告)号：US20100045358A1

公开(公告)日：2010-02-25

申请号：US12277259

申请日：2008-11-24

Applicant: Kuo-Jen Hsu

Inventor： Kuo-Jen Hsu

IPC: H03L5/00

CPC classification number: H03K3/356113

Abstract: The present invention provides a level shift circuit capable of operating at low input voltage. The level shift circuit comprises: a first switch element coupled to a first output terminal, a second switch element coupled to a second output terminal, a third switch element coupled to the second output terminal and the first output terminal, a fourth switch element coupled to the first output terminal and the second output terminal, a first current source module for letting a current passing through the third switch element smaller than a current passing through the first switch element when the first switch element and the third switch element are conducted, and a second current source module for let a current passing through the fourth switch element smaller than a current passing through the second switch element when the second switch element and the fourth switch element are conducted.

Abstract translation: 本发明提供能够在低输入电压下工作的电平移位电路。 电平移位电路包括：耦合到第一输出端的第一开关元件，耦合到第二输出端的第二开关元件，耦合到第二输出端和第一输出端的第三开关元件，耦合到 第一输出端子和第二输出端子，当第一开关元件和第三开关元件被导通时，用于使通过第三开关元件的电流小于通过第一开关元件的电流的第一电流源模块，以及 第二电流源模块，用于当第二开关元件和第四开关元件被导通时，使通过第四开关元件的电流小于通过第二开关元件的电流。

公开(公告)号：USD502370S1

公开(公告)日：2005-03-01

申请号：US29204116

申请日：2004-04-26

Applicant: Kuo-Jen Hsu

Designer： Kuo-Jen Hsu

公开(公告)号：US08159302B2

公开(公告)日：2012-04-17

申请号：US12975824

申请日：2010-12-22

Applicant: Sung-Yau Yeh ,  Kuo-Jen Hsu

Inventor： Sung-Yau Yeh ,  Kuo-Jen Hsu

IPC: H03F3/45

CPC classification number: H03F3/45219 ,  H03F1/0205 ,  H03F3/3028 ,  H03F2200/297 ,  H03F2203/30021

Abstract: A differential amplifier circuit includes: P-type and N-type differential input units outputting respectively first and second outputs in response to first and second input voltages; a P-type current mirror circuit driven by the second output; an N-type current mirror circuit driven by the first output; an output unit outputting an output voltage in response to control outputs from the P-type and N-type current mirror circuits; a first sub-current source including first and second P-type transistors connected in series; and a second sub-current source including first and second N-type transistors connected in series. Control ends of the second P-type and second N-type transistors receive the control outputs from the P-type and N-type current mirror circuits, respectively. Control ends of the first P-type and first N-type transistors are coupled to a common node between the first and second P-type transistors, and a common node between the first and second N-type transistors, respectively.

Abstract translation: 差分放大电路包括：P型和N型差分输入单元，响应于第一和第二输入电压分别输出第一和第二输出; 由第二输出驱动的P型电流镜电路; 由第一输出驱动的N型电流镜电路; 输出单元响应于来自P型和N型电流镜电路的控制输出而输出输出电压; 包括串联连接的第一和第二P型晶体管的第一子电流源; 以及包括串联连接的第一和第二N型晶体管的第二子电流源。 第二P型和第二N型晶体管的控制端分别从P型和N型电流镜电路接收控制输出。 第一P型和第N型晶体管的控制端分别耦合到第一和第二P型晶体管之间的公共节点，以及第一和第二N型晶体管之间的公共节点。