发明名称 |
Drive circuit |
摘要 |
The amplitude expansion circuit as a main part of a drive circuit includes: a VM DC power supply line to which a voltage VM is applied; a VH DC power supply line to which a voltage VH roughly twice as high as the voltage VM is applied; an inverter circuit receiving a pulse signal oscillating between the ground voltage and the voltage VM; another inverter circuit receiving a pulse signal oscillating between the voltage VM and the voltage VH in correspondence with the oscillation of the voltage level of the above pulse signal; a p-channel MOSFET having a gate receiving an output from the inverter circuit; another p-channel MOSFET having a gate connected to the VM DC power supply line; an n-channel MOSFET having a gate connected to the VM DC power supply line; and another n-channel MOSFET having a gate receiving an output from the other inverter circuit. A common connection node of the p-channel MOSFET and the n-channel MOSFET works as the output terminal of the amplitude expansion circuit.
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申请公布号 |
US6844769(B2) |
申请公布日期 |
2005.01.18 |
申请号 |
US20030366524 |
申请日期 |
2003.02.14 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMAMOTO YASUNORI;IWANAGA TAISHI |
分类号 |
H03K17/06;H03K17/10;(IPC1-7):H03L5/00 |
主分类号 |
H03K17/06 |
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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