Invention Grant
US07656107B2 Control circuit for an arrangement having at least two direct current motors that are connectable in parallel to a direct voltage system 有权
用于具有至少两个可与直流电压系统并联连接的直流电动机的装置的控制电路

  • Patent Title: Control circuit for an arrangement having at least two direct current motors that are connectable in parallel to a direct voltage system
  • Patent Title (中): 用于具有至少两个可与直流电压系统并联连接的直流电动机的装置的控制电路
  • Application No.: US11908583
    Application Date: 2006-06-26
  • Publication No.: US07656107B2
    Publication Date: 2010-02-02
  • Inventor: Stefan Koch
  • Applicant: Stefan Koch
  • Applicant Address: DE Stuttgart
  • Assignee: Robert Bosch GmbH
  • Current Assignee: Robert Bosch GmbH
  • Current Assignee Address: DE Stuttgart
  • Agent Michael J. Striker
  • Priority: DE102005035418 20050728
  • International Application: PCT/EP2006/063544 WO 20060626
  • International Announcement: WO2007/012530 WO 20070201
  • Main IPC: H02P1/54
  • IPC: H02P1/54
Control circuit for an arrangement having at least two direct current motors that are connectable in parallel to a direct voltage system
Abstract:
The invention relates to a control circuit for an arrangement having at least two DC motors (10, 12), which can be connected in parallel to a DC voltage system (16, 18), in particular a circuit for controlling at least two motors of a motor vehicle fan. In this case, the DC motors (10, 12) can be connected to the DC voltage system (16, 18), on the one hand, during starting, jointly via in each case one series resistor (22, 24) having a low resistance value and a common semiconductor switching element (26) and, on the other hand, during operation, via separate semiconductor switching elements (32, 34), the series circuit comprising the separate series resistors (22, 24) and the common semiconductor switching element (26) being arranged in parallel with the separate semiconductor switching elements (30, 32) for controlling the motors during operation.
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