| 摘要 |
The present invention discloses a current sensing circuit and method of a high-speed driving stage, which comprises an input stage, a level converting unit, a feedback unit, a current mirror unit and a current shunting unit. The current sensing circuit is capable of linearly detecting the output current of the driving stage transistors, and directly condensing the detected current to an appropriate value using the geometric ratio of the transistors, so as to facilitate the subsequent signal processing circuit to use it for control purposes.
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