发明名称 |
Device for measuring the current flowing through a power transistor of a voltage regulator |
摘要 |
A device for measuring the current flowing through a power transistor of a voltage regulator, the voltage regulator having an input voltage and providing a regulated output voltage and the power transistor coupled between the input and output voltages. The measuring device includes a further transistor adapted to mirror a portion of the current flowing through the power transistor, the further transistor and the power transistor have a first non-drivable terminal in common that is coupled to the input voltage. The measuring device also includes a circuit block to connect the second non-drivable terminals of the power and the further transistor and to provide an output current equal to the portion of the current flowing through the first transistor; the measuring device further including a circuit adapted to detect the output current of said circuit block. |
申请公布号 |
US8232781(B2) |
申请公布日期 |
2012.07.31 |
申请号 |
US20080343172 |
申请日期 |
2008.12.23 |
申请人 |
MARINO FILIPPO;MINIERI MARCO;PETRINA GAETANO;STMICROELECTRONICS S.R.L. |
发明人 |
MARINO FILIPPO;MINIERI MARCO;PETRINA GAETANO |
分类号 |
G05F1/00 |
主分类号 |
G05F1/00 |
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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