发明名称 |
Method of determining the gain of a BEMF amplifier and relative control circuit of an induction electric motor |
摘要 |
A method for determining gain of a back-electromotive force amplifier may include setting an electric motor into a tri-state function mode and storing a first quasi steady-state value for back-electromotive force from the difference signal, and forcing a reference current through the electric motor and determining a first value of the gain of the amplifier for equaling a difference signal to the first quasi steady-state value. The method may further include setting the electric motor into a tri-state function mode a second time and storing a second quasi steady-state value for back-electromotive force from the difference signal, and increasing the first value of the gain by an amount proportional to a difference between the second quasi steady-state value and the first quasi steady-state value. |
申请公布号 |
US8248012(B2) |
申请公布日期 |
2012.08.21 |
申请号 |
US20090638621 |
申请日期 |
2009.12.15 |
申请人 |
BETTA DAVIDE;ARMAROLI DIEGO;TRABATTONI ROBERTO;FERRARI MARCO;STMICROELECTRONICS S.R.L. |
发明人 |
BETTA DAVIDE;ARMAROLI DIEGO;TRABATTONI ROBERTO;FERRARI MARCO |
分类号 |
H02P3/00;H02H7/08 |
主分类号 |
H02P3/00 |
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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