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    APPARATUS FOR HAIRSTYLING BY MEANS OF STEAM
    1.
    发明公开
    APPARATUS FOR HAIRSTYLING BY MEANS OF STEAM 有权
    用蒸汽头发模板单元

    公开(公告)号：EP1135040A2

    公开(公告)日：2001-09-26

    申请号：EP00951341.7

    申请日：2000-07-04

    申请人： Koninklijke Philips Electronics N.V.

    发明人： MUGGE, Jan ,  VAN DEN BRUG, Lippe ,  RIJSKAMP, Peter

    IPC分类号： A45D1/04 ,  A45D7/02

    CPC分类号： A45D1/04 ,  A45D7/02 ,  A45D2001/008

    摘要： Apparatus for hairstyling by means of steam, having a winding part (1) which extends longitudinally for winding the hair around, which winding part (1) comprises a heating element (2) which extends longitudinally, an evaporation channel (5) which extends longitudinally and has an exit (40) and is in thermal contact with the heating element (2), a steam outlet (10) which extends longitudinally, and a distribution space which connects the exit (40) of the evaporation channel (5) to the steam outlet (10). The distribution space is formed by a number of longitudinally extending distribution channels (6) which are made of a thermally conducting material and are in close thermal contact with the heating element (2) along substantially their entire length. In this way, dripping of water from the apparatus during use in varying positions is prevented.

    Method for injection-moulding of a product
    2.
    发明公开
    Method for injection-moulding of a product 失效
    Verfahren zum Spritzgiessen eines Gegenstandes

    公开(公告)号：EP0950493A1

    公开(公告)日：1999-10-20

    申请号：EP99200120.6

    申请日：1996-01-10

    申请人： Koninklijke Philips Electronics N.V.

    发明人： Driessen, Marcellis Hendrikus Julianus

    IPC分类号： B29C45/17

    CPC分类号： B29C45/1704 ,  B29C33/0055 ,  B29C45/1711 ,  B29C2045/173

    摘要： A method is described for injection-moulding a product by means of the so-called gas-injection method. A special feature of the method is that in addition to the forming of a first gas volume (41) and a second gas volume (42) in a product cavity (10) by injecting gas via a first gas inlet (51) and a second gas inlet (52), an alternating pressure difference is applied between said gas volumes such that the magnitude of the gas volumes alternately increases and decreases in order to control the distribution of material injected.

    摘要翻译： 描述了通过所谓的气体注射法注射成型产品的方法。 该方法的特征在于，除了通过经由第一气体入口（51）和第二气体入口（51）注入气体而在产品空腔（10）中形成第一气体体积（41）和第二气体体积（42）之外， 气体入口（52），在所述气体体积之间施加交替的压力差，使得气体体积的大小交替地增加和减少，以便控制注入的材料的分布。

    POWER SUPPLY USING SYNCHRONOUS RECTIFICATION
    3.
    发明公开
    POWER SUPPLY USING SYNCHRONOUS RECTIFICATION 失效
    同步整流电源

    公开(公告)号：EP0929931A1

    公开(公告)日：1999-07-21

    申请号：EP98922997.0

    申请日：1998-06-11

    申请人： Koninklijke Philips Electronics N.V.

    发明人： SCHOOFS, Franciscus, Adrianus, Cornelis, Maria

    IPC分类号： H02M7 ,  H02M3

    CPC分类号： H02M3/33507 ,  H02M3/33592 ,  Y02B70/1475

    摘要： A power supply comprises a transformer (TR) having a first winding (N1) for receiving an input signal (Ui) and a second winding (N2) for supplying an output signal (Uo). Switching means (SM) are coupled in series with the first winding (N1) for switching on and switching off a current through the first winding (N1). A parallel arrangement of a freewheel diode (D) and a field effect transistor (T) is coupled in series with the second winding (N2). The gate of the field effect transistor (T) is controlled from an amplifier (AMP). The amplifier (AMP) compares the drain-source vltage of the field effect transistor (T) with the voltage of a reference voltage source (RF1) and ensures that the drain-source voltage is equal to the voltage of the reference voltage source (RF1) as long as an adequate current flows in the second winding (N2).

    SOFT SWITCHING, PWM CONTROLLER AND METHOD FOR REDUCING TORQUE RIPPLE IN MULTIPHASE DC MOTOR
    5.
    发明公开
    SOFT SWITCHING, PWM CONTROLLER AND METHOD FOR REDUCING TORQUE RIPPLE IN MULTIPHASE DC MOTOR 失效
    用于减少转矩脉动多相DC电动机软开关PWM控制器和控制方法

    公开(公告)号：EP0832513A1

    公开(公告)日：1998-04-01

    申请号：EP96907637.0

    申请日：1996-04-16

    申请人： PHILIPS ELECTRONICS N.V.

    发明人： SHELTON, Boyd, N. ,  BUTHKER, Henricus, C., J.

    IPC分类号： H02P6 ,  H02P7

    CPC分类号： H02P7/29 ,  H02P6/10

    摘要： A PWM controlled multiphase DC motor apparatus has a multiphase DC motor, a current sensor, and a PWM controller. The DC motor has multiple windings which turn on and off during commutation at a commutation frequency. The current sensor is coupled to sense power supply current flowing in all windings of the DC motor. The PWM controller is coupled to control the DC motor using a PWM signal at selected PWM frequency with variable duty cycle. Using the feedback from the current sensor, the PWM controller maintains approximately constant torque in the DC motor by adjusting the duty cycle of the PWM signal. The PWM controller includes a soft switching circuit which manipulates a voltage used to generate the controlling PWM signal in a manner which causes linear slewing of currents in the windings during commutation. The linear current slewing occurs at a slew rate that is slow relative to the PWM frequency to thereby reduce torque ripple during commutation. The combined features of continuous PWM duty cycle control and linear current slewing during commutation significantly reduces torque ripple at the fundamental commutation frequency, as well as at the first few harmonics. A method for PWM control of a multiphase DC motor is also described.

    POSITIONING DEVICE AND COMPONENT PLACEMENT MACHINE INCLUDING THE POSITIONING DEVICE
    6.
    发明公开
    POSITIONING DEVICE AND COMPONENT PLACEMENT MACHINE INCLUDING THE POSITIONING DEVICE 失效
    定位和元件布局机这种定位

    公开(公告)号：EP0826295A2

    公开(公告)日：1998-03-04

    申请号：EP97902543.0

    申请日：1997-02-26

    申请人： PHILIPS ELECTRONICS N.V.

    发明人： VERMEER, Adrianus, Johannes, Petrus, Maria ,  DE BIE, Petrus, Arnoldus ,  COX, Jeroen, Gerard, Pieter

    IPC分类号： G12B5 ,  F16H7 ,  F16H19 ,  H05K13

    CPC分类号： F16H7/24 ,  F16H19/0672 ,  F16H2019/0686 ,  H05K13/0404 ,  Y10T74/18848 ,  Y10T403/459

    摘要： The positioning device comprises a chassis (1) provided with a drive wheel (2), mounted on the shaft of a motor (6), and a reversing wheel (3). The positioning device further comprises a loop-shaped traction member (4) tensioned around the wheels (2, 3). The traction member (4) is connected to a load (5), which is movable relative to the chassis (1) and together with the traction member (4) forms a closed loop. The drive wheel (2) and the motor (6) form a drive means for driving the load (5) via a first section (41) of the traction member (4), which first section is disposed between the load (5) and the drive wheel (2), and via a second section (42) of the traction member (4), which second section is disposed between the load (5) and the drive wheel (2). The load (5) carries tensioning means (7) for tensioning the traction member (4). These tensioning means act on the first section (41) of the traction member (4) via a first point of engagement (A) and on the second section (42) of the traction member (4) via a second point of engagement (B). These tensioning means (7) keep the traction member (4) under tension. The load (5) is coupled to the traction member (4) via a coupling mechanism (8). The coupling mechanism (8) links a first relative movement of the first point of engagement (A) relative to the load to a second relative movement of the point of engagement (B) relative to the load in an opposite direction.

    ARRANGEMENT FOR SUPPLYING DRIVE SIGNALS TO A PLURALITY OF WINDINGS OF A MULTI-PHASE D.C. MOTOR, DRIVE SYSTEM AND DISK DRIVE
    8.
    发明公开
    ARRANGEMENT FOR SUPPLYING DRIVE SIGNALS TO A PLURALITY OF WINDINGS OF A MULTI-PHASE D.C. MOTOR, DRIVE SYSTEM AND DISK DRIVE 失效
    DEVICE FOR多相DC电机驱动多个绕组与信号，可驱动系统盘的供应

    公开(公告)号：EP0815640A1

    公开(公告)日：1998-01-07

    申请号：EP97900022.0

    申请日：1997-01-16

    申请人： Philips Electronics N.V.

    发明人： BÜTHKER, Henricus, Cornelis, Johannes

    IPC分类号： H02P6

    CPC分类号： H02P6/20 ,  H02P6/14 ,  H02P6/182

    摘要： The invention relates to an arrangement (1) for supplying drive signals to a plurality of windings of a multi-phase d.c. motor (8). The arrangement comprises a multi-phase inverter (10) which supplies the drive signals to the windings (2, 4, 6); a phase detector (40) which samples the back-emf signal of this winding in order to obtain a phase-error signal; a low-pass filter (42) which generates a control signal in dependence upon the phase-error signal; and a controllable oscillator (44) which generates a frequency signal whose phase and frequency depend on the control signal, the timing with which the multi-phase inverter (10) supplies the drive signals to the windings (2, 4, 6) being dependent on the frequency signal. The arrangement further comprises a masking circuit (70) for inhibiting the further processing of the phase-error signal by the low-pass filter (42) temporarily, at least during the presence of a flyback signal in the phase-error signal, as a result of which the processing of the flyback pulses present in the phase-error signal is inhibited.