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23 条记录 (耗时 0.015 秒)

    VERFAHREN UND SCHALTUNGSANORDNUNG ZUM SCHUTZ EINES ELEKTROMOTORS VOR ÜBERLASTUNG
    4.
    发明公开
    VERFAHREN UND SCHALTUNGSANORDNUNG ZUM SCHUTZ EINES ELEKTROMOTORS VOR ÜBERLASTUNG 有权
    方法与电路的电动机过载防护

    公开(公告)号：EP1459437A1

    公开(公告)日：2004-09-22

    申请号：EP02774402.8

    申请日：2002-09-24

    申请人： ROBERT BOSCH GMBH

    发明人： MOHR, Thomas ,  KNAB, Norbert ,  EISELE, Albert ,  RAPP, Juergen

    IPC分类号： H02P7/00 ,  H02M1/00 ,  H02H7/08

    CPC分类号： H02P29/02 ,  H02H7/0833

    摘要： Disclosed is a method and a circuit arrangement for carrying out a method to protect an electric motor (10) and/or a control circuit (12) thereof from an overload in an emergency operation mode. The inventive method and associated circuit arrangement are more particularly used to protect a direct current fan motor in a motor vehicle, operated by means of pulse-width modulation. The control circuit is embodied in the form of an emergency control unit with a microcontroller (16) which is mounted upstream from the final stage (20) of the motor and a comparator arrangement (14) which is used to detect excess voltages. The inventive measures provide protection from overload during increased battery voltage and when the emergency control unit is activated as a result of malfunctions in the normal control circuit (12) of the electric motor (10). At least one excess voltage threshold (Us1,Us2) is thus set. When said threshold is exceeded, the power supplied to the motor is reduced or disconnected.

    NETZWERKSCHNITTSTELLE
    5.
    发明授权
    NETZWERKSCHNITTSTELLE 失效
    网络接口

    公开(公告)号：EP0658258B1

    公开(公告)日：1996-11-27

    申请号：EP93915686.5

    申请日：1993-08-05

    申请人： ROBERT BOSCH GMBH

    发明人： MOHR, Thomas ,  SCHMIEDERER, Claus ,  KERN, Robert ,  DECKER, Gerhard

    IPC分类号： G06F11/16

    CPC分类号： H04L12/40032 ,  H04L2012/40215 ,  H04L2012/40273

    摘要： Proposed is a network interface (12) designed for two-wire reception via a serial bus. The interface (12) has a differential receiver (14) connected to two input line (RX0, RX1). The interface (12) also has means for detecting fault conditions in the bus lines (18, 19). The interface is designed in such a way that, when a fault is detected, the interface goes over to single-wire operation in order to maintain the flow of data. This is done by applying a fixed clamping potential to one input line (RX0, RX1), the clamping potential being chosen such that the potential difference between the two input lines (RX0, RX1) is the same for both bit levels.

    STEUERGERÄT MIT RUHESTROMREDUZIERUNG
    8.
    发明授权
    STEUERGERÄT MIT RUHESTROMREDUZIERUNG 失效
    配备闭路电视降低控制器

    公开(公告)号：EP0932927B1

    公开(公告)日：2004-04-21

    申请号：EP97946731.3

    申请日：1997-10-17

    申请人： ROBERT BOSCH GMBH

    发明人： MOHR, Thomas

    IPC分类号： H02M3/158 ,  G05F3/22

    CPC分类号： G05F1/468

    摘要： The present invention concerns a control apparatus comprising a first level which provides a supply voltage defined for an upstream electronic circuit, and a circuit level connected downstream of the first level for down-converting the quiescent current supplied by a voltage source. In order to enable the quiescent current to be substantially down-converted, said circuit level is simply equipped with a switch which may be controlled through a setpoint signal from the control circuit so as to be either in an open state or in a closed state.

    SCHALTUNGSANORDNUNG MIT EINEM MIKROPROZESSOR
    9.
    发明公开
    SCHALTUNGSANORDNUNG MIT EINEM MIKROPROZESSOR 失效
    与微处理器电路

    公开(公告)号：EP0875026A1

    公开(公告)日：1998-11-04

    申请号：EP97935445.0

    申请日：1997-07-22

    申请人： ROBERT BOSCH GMBH

    发明人： MOHR, Thomas

    IPC分类号： G06F1

    CPC分类号： G06F1/24

    摘要： The invention relates to a circuit configuration with a microprocessor to whose reset terminal a reset signal of a triggering circuit can be applied. Simple reset interconnection for the microprocessor is obtained by connecting the reset terminal to a further terminal of the microprocessor as well; after the reset signal has been applied to the reset terminal, this keeps the reset terminal at a defined masking level that differs from the reset level.

    VERFAHREN ZUM ANALOG-/DIGITAL-WANDELN EINES ELEKTRISCHEN SIGNALS UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS
    10.
    发明公开
    VERFAHREN ZUM ANALOG-/DIGITAL-WANDELN EINES ELEKTRISCHEN SIGNALS UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS 失效
    方法电信号用于实施过程中的模拟/数字走路和设备

    公开(公告)号：EP0769224A1

    公开(公告)日：1997-04-23

    申请号：EP95921722.0

    申请日：1995-06-22

    申请人： ROBERT BOSCH GMBH

    发明人： MOHR, Thomas

    IPC分类号： H03M1

    CPC分类号： H03M1/50

    摘要： The proposal is for a process for the analog/digital conversion of an electric signal and a device for implementing it. In the process of the invention, the time (TH, TL) is found which, starting from a voltage (Ux) to be transformed, is needed to charge or discharge an RC circuit (10, 12) to a predetermined reference voltage, e.g. a switching threshold (SH, SL) of a comparator (14). In the device of the invention, there is a selector (13), the comparator (14) and a time detector (15) in a microprocessor which is fitted with the RC circuit (10, 12) and possibly with an input resistor (11). The process and device of the invention are particularly easy to make and are particularly suitable for use with a microprocessor (17) without an integrated analog/digital converter.