发明名称 |
Output circuit |
摘要 |
A power transistor is arranged between an output terminal and a power supply terminal. A pre-driver includes a high-side transistor and a low-side transistor connected in series between the power supply terminal and a second terminal, and the ON/OFF operations of which are controlled in a complementary manner according to a control signal. The electric potential at a connection node between the two transistors is output to a control terminal of the power transistor. A constant voltage circuit stabilizes the second terminal to a predetermined voltage. An output transistor for the constant voltage circuit is provided between the second terminal and the ground terminal. A differential amplifier adjusts the voltage applied to the control terminal of the output transistor such that the electric potential at the second terminal approaches a predetermined target value. A feedback capacitor is provided between the second terminal and the control terminal of the output transistor. |
申请公布号 |
US8222846(B2) |
申请公布日期 |
2012.07.17 |
申请号 |
US20100693489 |
申请日期 |
2010.01.26 |
申请人 |
SUGIE HISASHI;ROHM CO., LTD. |
发明人 |
SUGIE HISASHI |
分类号 |
H02P6/00;G05F1/00;H02H7/08;H02K29/08;H02P3/12;H02P6/10;H02P6/16;H03K17/56 |
主分类号 |
H02P6/00 |
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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