公开(公告)号：US5654626A

公开(公告)日：1997-08-05

申请号：US139038

申请日：1993-10-21

申请人： Bror Mats Karlsson

发明人： Bror Mats Karlsson

IPC分类号： H02M1/34 ,  H02M3/155 ,  H03K17/00 ,  H03K17/0814 ,  G05F1/56

CPC分类号： H02M1/34 ,  H02M3/155 ,  H03K17/08142 ,  H02M2001/348 ,  H03K2217/0036

摘要： A boost-converter with low losses having a series connection of an energy storing main inductor and a main diode connected between a first input terminal for a first voltage and a first output terminal for a second, higher dc-voltage. The centre point between the components connected in series is, via a controllable switching element, connected to a common second input and output terminal. A control circuit for the switching element is provided to monitor the voltage of the first output terminal of the converter and to control the on and off operation of the switching element. The converter additionally has an auxiliary inductor, connected between the centre point and a terminal on the switching element, in order to limit the reverse current in the main diode when the switching element changes to conducting condition, and a series connection of a zener diode and a first and second diode between the terminal and the output terminal to transfer energy stored in the auxiliary inductor towards the output terminal. Furthermore, a capacitor for temporary storage of energy from the inductor is connected between the centre point and the connecting point between the first and second diodes.

摘要翻译： 具有低损耗的升压转换器具有连接在用于第一电压的第一输入端和第二高电压的第一输出端之间的能量存储主电感器和主二极管的串联连接。 串联连接的部件之间的中心点经由可控开关元件连接到公共的第二输入和输出端子。 提供了一种用于开关元件的控制电路以监视转换器的第一输出端子的电压并控制开关元件的接通和断开操作。 转换器还具有连接在开关元件的中心点和端子之间的辅助电感器，以便在开关元件变为导通状态时限制主二极管中的反向电流，并且将齐纳二极管和 在端子和输出端子之间的第一和第二二极管，用于将存储在辅助电感器中的能量转移到输出端子。 此外，用于临时存储来自电感器的能量的电容器连接在中心点和第一和第二二极管之间的连接点之间。