发明名称 |
POWER SUPPLY VOLTAGE CONVERTING CIRCUIT, METHOD FOR CONTROLLING THE SAME, DISPLAY DEVICE, AND MOBILE TERMINAL |
摘要 |
<p>A supply voltage conversion circuit allowing fabrication of a charge pump circuit having a large current capability with a small area is provided. In a charge pump DC-DC converter (10) for converting a supply voltage VDD1 to a supply voltage VDD2, a level shifter (12) implements amplitude conversion to convert from a control pulse with amplitude of VSS - VDD1 to a control pulse with amplitude of VSS - VDD2. By using the control pulse having the converted amplitude as a pumping pulse, a flying capacitor (C11) is charged/discharged by MOS transistors (Qp11), and (Qn11) of a charge pump circuit (11), and switching of MOS transistors (Qn12), and (Qp12) coupled to the output of the flying capacitor (C11) is controlled.</p> |
申请公布号 |
EP1626486(A1) |
申请公布日期 |
2006.02.15 |
申请号 |
EP20040733188 |
申请日期 |
2004.05.14 |
申请人 |
SONY CORPORATION |
发明人 |
NAKAJIMA, YOSHIHARU;KIDA, YOSHITOSHI |
分类号 |
H02M3/07;(IPC1-7):H02M3/07 |
主分类号 |
H02M3/07 |
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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