Abstract:
A biped walking robot having load reduction and stability of a motor using a functional structure of toes is provided to stably walk like more human through the toe operation and reduce the load of the articulation motor. A toe structure for a biped walking robot comprises a planar plate-shaped foot sole part(6); a planar plate-shaped toe part(7); a first support(1) fixed at the edge center of the toe direction of the foot sole part and formed with a connection shaft(8) to both side directions; two second supports(4) fixed at both sides of the first support of the foot sole part; two third supports(5) fixed around the edge of both side directions; two spring parts(2) whose both edges are formed with rod-shaped connection ends; and two connection devices(3) where the edges of two connection pieces are connected by the connection shaft. The both connection ends of the spring are connected with the connection shaft of the first support and the third support. The connection device is fixed with the second and third supports, and the toe part is formed with an articulation for shaft-rotation to the direction of the foot sole part.
Abstract:
PURPOSE: A non-contact charging system using an inductive coupling method is provided to charge a storage battery of a portable device by performing an inductive coupling process using magnetic field. CONSTITUTION: A non-contact charging system using an inductive coupling method includes a low-frequency AC/DC rectifier(11), a DC/DC converter(12), a high-frequency parallel resonance type inverter(13), a ferrite core, and a primary winding wire(4). The low-frequency AC/DC rectifier(11) is used for converting low-frequency AC voltage to DC voltage. The DC/DC converter(12) is used for forming constantly the DC voltage regardless of the intensity of the DC voltage. The high-frequency parallel resonance type inverter(13) is used for converting the constant DC voltage to high-frequency AC power. The ferrite core is connected to a high-frequency parallel resonance type inverter. The primary winding wire(4) is installed between a center projection part and an external projection part of the ferrite core in order to transmit the high-frequency AC power to a portable device by using an inductive coupling method. The portable device is formed with a ferrite sheet, a secondary winding wire(5) installed on the ferrite sheet, and a high-frequency AC/DC rectifier(15) for converting the AC power of the secondary winding wire to DC power and applying the DC power to a storage battery.
Abstract:
본 발명은 유기발광소자인 OLED의 밝기를 효과적으로 정확히 제어함과 더불어 픽셀간의 미스 매칭에 의한 계조 불균일성을 극복할 수 있도록 하는 액티브 매트릭스 유기발광소자의 픽셀회로 및 그 구동방법과 이를 이용한 디스플레이 장치에 관한 것이다. 이러한 본 발명의 유기발광소자의 픽셀회로는, OLED를 구동하는 전압제어전류원인 VCCS와; 상기 VCCS의 제어입력신호가 온 또는 오프 상태에 있도록 하기 위한 고이득 증폭기와; 상기 VCCS의 온 시간을 지정하기 위하여 상기 고이득 증폭기의 입력과 데이터 라인 사이에 위치하는 스토리지 캐패시터와; 상기 스토리지 캐패시터에 전압을 저장하고, 상기 OLED의 발광 시간을 제어하기 위하여 스캔 라인으로 제어되는 제1, 제2 스위치를 상기 고이득 증폭기 입력과 VCCS의 입력에 각각 구성한 것을 특징으로 한다. OLED, 픽셀, 톱니파, VCCS, 디스플레이
Abstract:
본 발명은 유기발광소자인 OLED의 밝기를 효과적으로 정확히 제어함과 더불어 픽셀간의 미스 매칭에 의한 계조 불균일성을 극복할 수 있도록 하는 액티브 매트릭스 유기발광소자의 픽셀회로 및 그 구동방법과 이를 이용한 디스플레이 장치에 관한 것이다. 이러한 본 발명의 유기발광소자의 픽셀회로는, OLED를 구동하는 전압제어전류원인 VCCS와; 상기 VCCS의 제어입력신호가 온 또는 오프 상태에 있도록 하기 위한 고이득 증폭기와; 상기 VCCS의 온 시간을 지정하기 위하여 상기 고이득 증폭기의 입력과 데이터 라인 사이에 위치하는 스토리지 캐패시터와; 상기 스토리지 캐패시터에 전압을 저장하고, 상기 OLED의 발광 시간을 제어하기 위하여 스캔 라인으로 제어되는 제1, 제2 스위치를 상기 고이득 증폭기 입력과 VCCS의 입력에 각각 구성한 것을 특징으로 한다. OLED, 픽셀, 톱니파, VCCS, 디스플레이
Abstract:
PURPOSE: A non-contact charging system using an inductive coupling method is provided to charge a storage battery of a portable device by performing an inductive coupling process using magnetic field. CONSTITUTION: A non-contact charging system using an inductive coupling method includes a low-frequency AC/DC rectifier(11), a DC/DC converter(12), a high-frequency parallel resonance type inverter(13), a ferrite core, and a primary winding wire(4). The low-frequency AC/DC rectifier(11) is used for converting low-frequency AC voltage to DC voltage. The DC/DC converter(12) is used for forming constantly the DC voltage regardless of the intensity of the DC voltage. The high-frequency parallel resonance type inverter(13) is used for converting the constant DC voltage to high-frequency AC power. The ferrite core is connected to a high-frequency parallel resonance type inverter. The primary winding wire(4) is installed between a center projection part and an external projection part of the ferrite core in order to transmit the high-frequency AC power to a portable device by using an inductive coupling method. The portable device is formed with a ferrite sheet, a secondary winding wire(5) installed on the ferrite sheet, and a high-frequency AC/DC rectifier(15) for converting the AC power of the secondary winding wire to DC power and applying the DC power to a storage battery.