发明授权
US08248012B2 Method of determining the gain of a BEMF amplifier and relative control circuit of an induction electric motor
有权
确定感应电动机的BEMF放大器和相对控制电路的增益的方法
- 专利标题： Method of determining the gain of a BEMF amplifier and relative control circuit of an induction electric motor
- 专利标题（中）： 确定感应电动机的BEMF放大器和相对控制电路的增益的方法
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申请号： US12638621申请日： 2009-12-15
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公开(公告)号： US08248012B2公开(公告)日： 2012-08-21
- 发明人: Davide Betta , Diego Armaroli , Roberto Trabattoni , Marco Ferrari
- 申请人： Davide Betta , Diego Armaroli , Roberto Trabattoni , Marco Ferrari
- 申请人地址： IT Agrate Brianza (MI)
- 专利权人： STMicroelectronics S.R.L.
- 当前专利权人： STMicroelectronics S.R.L.
- 当前专利权人地址： IT Agrate Brianza (MI)
- 代理机构： Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 优先权： ITVA2008A0064 20081218
- 主分类号： H02P3/00
- IPC分类号： H02P3/00 ; H02H7/08
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.
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