发明名称 |
Switching power supply apparatus |
摘要 |
An overcurrent protection circuit of a switching power supply apparatus, wherein a rectangular wave voltage is formed from an input voltage by the ON/OFF operation switching means, and an output voltage is formed by smoothing the rectangular wave voltage by using an inductance device and a capacitor, restricts overcurrent by detecting the peak current of a current flowing through the switching means and by using an input voltage Vin, an output voltage Vout and a voltage proportional to the ON/OFF ratio D of the switching means.
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申请公布号 |
US6646848(B2) |
申请公布日期 |
2003.11.11 |
申请号 |
US20020059922 |
申请日期 |
2002.01.29 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YOSHIDA KOJI;KURANUKI MASAAKI |
分类号 |
H02M1/00;H02M1/32;H02M3/156;H02M3/335;(IPC1-7):H02H3/08;H02M5/42 |
主分类号 |
H02M1/00 |
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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