发明名称 |
SWITCHING POWER SUPPLY, CONTROL CIRCUIT FOR CONTROLLING SWITCHING POWER SUPPLY, CONTROL METHOD OF SWITCHING POWER SUPPLY AND MODULE SUBSTRATE |
摘要 |
The present invention is a switching power supply including: a first switch (SW 1) provided between a positive terminal (N21) of a DC power supply and a positive terminal (N31) of a load; a second switch (SW2) connected in parallel with the first switch (SW1); a first capacitor (C1) provided between the second switch (SW2) and a node (N13) of the first switch (SW1) on a DC power supply side; a first inductor (L1) provided between the first capacitor (C1) and the positive terminal (N21) of the DC power supply; and a control circuit 49 that turns off the second switch after the first switch is turned off and when or before a voltage across the first capacitor becomes zero, a control circuit for controlling the switching power supply, a control method of switching the power supply, and a module substrate. |
申请公布号 |
EP2211447(A4) |
申请公布日期 |
2014.04.09 |
申请号 |
EP20070831377 |
申请日期 |
2007.11.07 |
申请人 |
FUJITSU LIMITED |
发明人 |
YONEZAWA, YU;MISHIMA, NAOYUKI |
分类号 |
H02M3/155 |
主分类号 |
H02M3/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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