发明专利
JP2005051991A Control unit of duty cycle in half-bridge type dc-dc converter using current mode control
审中-公开
基本信息:
- 专利标题： Control unit of duty cycle in half-bridge type dc-dc converter using current mode control
- 专利标题（中）：使用电流模式控制的半桥型DC-DC转换器中的占空比控制单元
- 申请号：JP2004197731 申请日：2004-07-05
- 公开(公告)号：JP2005051991A 公开(公告)日：2005-02-24
- 发明人： RAI ENSEI , JO FUKUSAN , LIN SHIRON , KO YUIKETSU
- 申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
- 专利权人： Renesas Technology Corp,株式会社ルネサステクノロジ
- 当前专利权人： Renesas Technology Corp,株式会社ルネサステクノロジ
- 优先权： TW92120833 2003-07-30
- 主分类号： H02M3/28
- IPC分类号： H02M3/28 ; H02M1/02 ; H02M3/10
摘要：
PROBLEM TO BE SOLVED: To provide a control unit of duty cycle in a half-bridge type DC-DC converter using current mode control for making the duty cycle of a pulse width modulation signal symmetric by latching the voltage of a voltage-divider capacitor on input side to a predetermined value.
SOLUTION: The half-bridge type DC-DC converter 4 using the current mode control is provided with an auxiliary transformer 31 to be connected in parallel to the primary side 421 of the main transformer 42 and a first diode SD1 and a second diode SD2 to be connected in parallel relative to the voltage-divider capacitors C1, C2 connected in series and connected in series in forward direction. At this time, the primary side 311 no-point end of the auxiliary transformer 31 is connected to one end of the voltage-divider capacitor C1, C2 side in the transformer 44, while one end of the secondary side 312 of the auxiliary transformer 31 is connected between the voltage-divider capacitors C1, C2, connecting the other end between the first diode and the second diode.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要（中）：
SOLUTION: The half-bridge type DC-DC converter 4 using the current mode control is provided with an auxiliary transformer 31 to be connected in parallel to the primary side 421 of the main transformer 42 and a first diode SD1 and a second diode SD2 to be connected in parallel relative to the voltage-divider capacitors C1, C2 connected in series and connected in series in forward direction. At this time, the primary side 311 no-point end of the auxiliary transformer 31 is connected to one end of the voltage-divider capacitor C1, C2 side in the transformer 44, while one end of the secondary side 312 of the auxiliary transformer 31 is connected between the voltage-divider capacitors C1, C2, connecting the other end between the first diode and the second diode.
COPYRIGHT: (C)2005,JPO&NCIPI
要解决的问题：为了通过使用电流模式控制来提供半桥式DC-DC转换器中的占空比的控制单元，以使脉冲宽度调制信号的占空比通过锁存电压 - 输入侧的分压电容器达到预定值。 解决方案：使用电流模式控制的半桥式DC-DC转换器4设置有与主变压器42的初级侧421并联连接的辅助变压器31，第一二极管SD1和第二二极管SD1 二极管SD2相对于串联连接的分压电容器C1，C2并联连接并且在正向连接。 此时，辅助变压器31的初级侧311无点端与变压器44的分压电容器C1，C2侧的一端连接，辅助变压器31的次级侧312的一端 连接在连接第一二极管和第二二极管之间的另一端的分压电容器C1，C2之间。 版权所有（C）2005，JPO＆NCIPI
信息查询:
EspacenetIPC结构图谱:
| H | 电学 |
| --H02 | 发电、变电或配电 |
| ----H02M | 用于交流和交流之间、交流和直流之间、或直流和直流之间的转换以及用于与电源或类似的供电系统一起使用的设备；直流或交流输入功率至浪涌输出功率的转换；以及它们的控制或调节 |
| ------H02M3/00 | 直流功率输入变换为直流功率输出 |
| --------H02M3/02 | .没有中间变换为交流的 |
| ----------H02M3/24 | ..用静态变换器的 |
| ------------H02M3/28 | ...应用有控制极的放电管或有控制极的半导体器件产生中间交流电的 |