Abstract:
본 발명은 동축권선 변압기를 이용하는 플라이백 컨버터에 관한 것으로서, 본 발명의 일 실시예에 따른 동축권선 변압기를 이용하는 플라이백 컨버터는, 1차측 전류를 공급하는 플라이백 구동부와, 다수개의 내부 심선을 1차측 권선으로, 상기 다수개의 내부 심선을 둘러싸고 있는 외부 심선을 2차측 권선으로 하는 케이블을 자성 코어에 감고, 상기 1차측 권선의 양 말단을 직렬로 연결하여 형성되며, 상기 1차측 전류를 입력받아 1차측 권선 및 2차측 권선의 권선비에 따라 2차측 전류를 출력하는 변압기와, 상기 2차측 전류를 정류하는 정류 다이오드와, 상기 정류 다이오드를 통한 전압을 평활하는 출력 캐패시터를 포함한다. 이에 따라, 플라이백 컨버터에 포함되는 동축권선 변압기를 다심형 동축 케이블을 이용하여 제조함으로써 결합 계수를 향상시켜 누설 인덕턴스를 최소화하여 전력 효율을 향상시킬 수 있다.
Abstract:
PURPOSE: A fly back converter is provided to promote a combination coefficient by using a multicenter coaxial cable. CONSTITUTION: A fly back operating unit provides a first current by controlling a power switch. A transformer output a second current according to a winding ratio of a first coil(1) and a second coil(3). The transformer directly connects both ends of the first coil. A rectifying diode rectifies the second current. An output capacitor controls a voltage through the rectifying diode. [Reference numerals] (1) First side coil; (3) Second side coil
Abstract:
The present invention relates to a high step-up converter. According to an embodiment of the present invention, the present invention provides a high step-up converter comprising: a power supply unit including a magnetization inductor which transfers a voltage from direct current power in response to an operation of a transistor connected to a primary side wire; a first diode in which an anode is connected to a tap formed between a second terminal of the primary side wire and a first terminal of a secondary side wire; a first capacitor in which the first terminal is connected to a cathode of the first diode and a second terminal is connected to the second terminal of the secondary side wire; a second diode in which the cathode is connected to the first terminal of the primary side wire and the anode is connected to an earth power source; and a second capacitor in which the first terminal is connected to the second terminal of the secondary side wire and the second terminal is connected to the earth power source. According to the high step-up converter, a converter which can output a high voltage of high step-up by applying a charge pump and a tap addition type transformer and has high efficiency is provided. Also, the present invention is economical in terms of costs as it uses one single switch on a primary side of the converter. The present invention can highly boost the voltage with a low turn ratio and can be applied to various technologies such as solar energy generation etc.
Abstract:
PURPOSE: A coaxial coil tapped inductor is provided to improve the coupling coefficient between inductors by forming an internal and an external core wire as inductors. CONSTITUTION: A first inductor is formed by winding a first coil(15) on around a core. A second inductor is formed by winding a second coil(17) around a core. A tap(19) is branched from the intersection part of the first coil and the second coil. An external core is composed of the first coil or the second coil.