公开(公告)号：US06307338B1

公开(公告)日：2001-10-23

申请号：US09673040

申请日：2000-12-12

Applicant: Arnold Kuner ,  Frank Jeske ,  Irmgard Moosmann ,  Michael Moosmann ,  Christian Moosmann

Inventor： Arnold Kuner ,  Frank Jeske ,  Irmgard Moosmann ,  Michael Moosmann ,  Christian Moosmann

IPC: H02P308

CPC classification number: H02P6/14

Abstract: An electronically commutated motor has at least two winding phases (112, 114) which are wound together or otherwise inductively coupled. Current in each phase is controlled by a respective power transistor (124, 128). An integrated circuit controller (146) receives signals from a Hall sensor (118) and generates rotor position output signals (OUT1, OUT2) which are oppositely phased and are applied to the bases of the respective power transistors (124, 128) so that the power transistors never both conduct at the same time. Further, a pair of latching transistors (162, 172) and a pair of base drain resistors (164, 174), connected to respective bases of the power transistors (124, 128) are provided, in order to assure “soft” switching of the power transistors at low RPM, yet prompter switching and higher efficiency at high RPM. These additional components also ensure a sufficiently long current gap between switch-off of one power transistor and switch-on of the other power transistor.

Abstract translation: 电子换向电动机具有至少两个卷绕在一起或以其他方式感应耦合的绕组相（112,114）。 每相中的电流由相应的功率晶体管（124,128）控制。 集成电路控制器（146）接收来自霍尔传感器（118）的信号，产生相位相位的转子位置输出信号（OUT1，OUT2），并被施加到各个功率晶体管（124,128）的基极， 功率晶体管不会同时进行。 此外，提供了连接到功率晶体管（124,128）的各个基极的一对闩锁晶体管（162,172）和一对基极漏极电阻器（164,174），以便确保“软”切换 功率晶体管处于低RPM，而且在高RPM下提供更高的转换效率。 这些额外的部件还确保了一个功率晶体管的断开和另一个功率晶体管的接通之间足够长的电流间隙。