发明名称 |
POWER SUPPLY DEVICE |
摘要 |
A power supply device includes: a first transistor that switches a first current flowing between a first terminal and a second terminal of the first transistor; a second transistor that has a first terminal connected to the first terminal of the first transistor and a control terminal connected to a control terminal of the first transistor and is formed in a chip in which the first transistor is formed; a current source that supplies a second current between the first and second terminals of the second transistor; and a control part that performs a turn-on and turn-off control of the first transistor on the basis of voltages of the second terminals of the first and second transistors. |
申请公布号 |
US2014167721(A1) |
申请公布日期 |
2014.06.19 |
申请号 |
US201314057839 |
申请日期 |
2013.10.18 |
申请人 |
FUJITSU SEMICONDUCTOR LIMITED |
发明人 |
Ito Yuji;Yokomaku Masato |
分类号 |
H02M7/217 |
主分类号 |
H02M7/217 |
代理机构 |
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代理人 |
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主权项 |
1. A power supply device comprising:
a first transistor that switches a first current flowing between a first terminal and a second terminal of the first transistor; a second transistor that has a first terminal connected to the first terminal of the first transistor and a control terminal connected to a control terminal of the first transistor and is formed in a chip in which the first transistor is formed; a current source that supplies a second current between the first and second terminals of the second transistor; and a control part that performs a turn-on and turn-off control of the first transistor on the basis of voltages of the second terminals of the first and second transistors.
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地址 |
Yokohama-shi JP |