公开(公告)号：US10298122B2

公开(公告)日：2019-05-21

申请号：US15113650

申请日：2014-01-23

Applicant: SAAB AB

Inventor： Niklas Janehag ,  Valter Nilsson

IPC: G01S7/28 ,  H02M3/156 ,  G01S7/02 ,  H02M1/12 ,  H02M1/15

Abstract: A switching mode DC/DC power converter for delivering a direct current to a pulse radar unit. A first switching element connects and disconnects the power converter from a power source in each cycle of the power converter. An inductor charges and discharges in each cycle. A capacitor maintains a DC output voltage as the inductor charges and discharges in each cycle. A second switching element transfers energy from the inductor to the capacitor when the first switch disconnects the switching mode power converter from the power source. A control loop regulates the voltage with a time constant, to a predetermined value by controlling the first switching element. An on time for the first switching element in each cycle is chosen to allow the current through the inductor to fall to zero in each cycle. The cycle is shorter than RF pulse duration and time constant of the control loop is longer than the RF pulses.

公开(公告)号：US20170012524A1

公开(公告)日：2017-01-12

申请号：US15113650

申请日：2014-01-23

Applicant: SAAB AB

Inventor： Niklas Janehag ,  Valter Nilsson

IPC: H02M3/156 ,  G01S7/28 ,  H02M1/12

CPC classification number: H02M3/156 ,  G01S7/02 ,  G01S7/28 ,  H02M1/126 ,  H02M1/15 ,  H02M2003/1566

Abstract: A switching mode DC/DC power converter for delivering a direct current to a pulse radar unit. A first switching element connects and disconnects the power converter from a power source in each cycle of the power converter. An inductor charges and discharges in each cycle. A capacitor maintains a DC output voltage as the inductor charges and discharges in each cycle. A second switching element transfers energy from the inductor to the capacitor when the first switch disconnects the switching mode power converter from the power source. A control loop regulates the voltage with a time constant, to a predetermined value by controlling the first switching element. An on time for the first switching element in each cycle is chosen to allow the current through the inductor to fall to zero in each cycle. The cycle is shorter than RF pulse duration and time constant of the control loop is longer than the RF pulses.

Abstract translation: 用于向脉冲雷达单元传送直流电的开关模式DC / DC电力转换器。 第一开关元件在功率转换器的每个周期中将功率转换器与电源连接并断开。 电感器在每个周期中充电和放电。 当电感器在每个周期中充电和放电时，电容器保持直流输出电压。 当第一开关将开关模式功率转换器与电源断开时，第二开关元件将电能从电感器传递到电容器。 控制回路通过控制第一开关元件将时间常数的电压调节到预定值。 选择每个周期中第一个开关元件的准时开关，以允许每个周期中通过电感器的电流降至零。 该周期比RF脉冲持续时间短，控制回路的时间常数大于RF脉冲。