发明授权
- 专利标题: Electronic control device for an electronically commutative motor
- 专利标题(中): 电子换向电机电子控制装置
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申请号: US219890申请日: 1994-03-30
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公开(公告)号: US5457366A公开(公告)日: 1995-10-10
- 发明人: Josef Wehberg , Michael Soellner , Joerg Albrecht
- 申请人: Josef Wehberg , Michael Soellner , Joerg Albrecht
- 申请人地址: DEX Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DEX Stuttgart
- 优先权: DEX4310260 19930330
- 主分类号: H02P6/08
- IPC分类号: H02P6/08 ; H02P6/14 ; H02P7/00
摘要:
An electronic control device for an electric motor (10), particularly an electrically commutated (EC) motor, whose motor windings (11 to 13), in order to control the winding current, are connected in series with respective control transistors (15 to 17) whose control connections are charged by control pulses which are triggered by commutation signals and which have a predeterminable pulse-duty factor (block control). At the same time, the control device varies the amplitudes of the control pulses to control and permit the operation of the control transistors (15 to 17) in their amplifying range (linear control). Block control dominates in the upper rpm range in order to improve efficiency with respect to pure linear control, and linear control dominates in the lower rpm range in order to prevent severe current peaks, and hence an increased noise development that would occur with pure block control.
公开/授权文献
- USD269175S Three axes hitch 公开/授权日:1983-05-31