发明名称 |
DRIVER CIRCUIT AND METHOD FOR REDUCING ELECTROMAGNETIC INTERFERENCE |
摘要 |
An apparatus and a method switch a load through a power transistor. The apparatus includes: a first current generator for generating a current to charge a capacitance of a control terminal of the power transistor during power on of the power transistor; a second current generator for generating a current to discharge the capacitance during power off of the power transistor. The apparatus is equipped with control circuitry having a storage element for storing a voltage value representative of the potential difference between the control terminal and a conduction terminal of the power transistor when the power transistor operates in the saturation region and a discharge circuit for generating an additional current to discharge the capacitance during the power-off process. The additional current is a function of the potential difference of the control terminal and the stored voltage value from the conduction terminal.
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申请公布号 |
US2011175650(A1) |
申请公布日期 |
2011.07.21 |
申请号 |
US201113073760 |
申请日期 |
2011.03.28 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
TUMMINARO SALVATORE;GIOMBANCO SALVATORE |
分类号 |
H03K3/01 |
主分类号 |
H03K3/01 |
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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