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1. 发明公开

EP1054503A2 Method and apparatus for supplying AC power while meeting the european flicker and harmonic requirements 审中-公开
标题翻译：考虑到欧洲标准的闪变和谐波的方法和设备，交流供电
公开(公告)号：EP1054503A2
公开(公告)日：2000-11-22
申请号：EP00304207.4
申请日：2000-05-18
申请人： Lexmark International, Inc.
发明人： Cao, Jichang , Green, Timothy Allen , Harris, Steven Jeffrey , Sellers, Ronald Todd
IPC分类号： H02M5/257 , H05B39/02 , H02M1/12
CPC分类号： H05B1/0241 , G03G15/2003 , H05B3/0066
摘要： An improved control method is provided that combines conventional ON-OFF control and conventional phase-angle control to reduce the AC inrush current to an electrical load, such as a tungsten halogen lamp used as a heating element in a laser printer, so that the power control circuit can satisfy both the European flicker and European harmonic requirements. Phase-angle control is applied to the load for a very short time period when it is initially energized, then the control circuit quickly switches from phase-angle control to standard ON-OFF control to reduce the harmonics generated by conventional phase-angle control methodologies. The electrical load exhibits three possible states: power full OFF, power ramp-up, and power full ON. During the power ramp-up state, power supplied to the load is adjusted by delaying the phase angle of the firing pulse relative to the start of each AC half cycle. Depending upon whether or not the system demand has been satisfied, the load's state can be changed from either power ramp-up to power full ON, or from power ramp-up to power full OFF. The phase-angle control methodology used during the power ramp-up state must be of sufficient time duration to reduce the amount of flicker to pass the European flicker test. However, this power ramp-up time interval must also be as short as possible to keep the harmonics as small as possible to the load, without the requirement of adding a large AC current harmonic attenuation inductor, which would otherwise be needed to pass the European harmonic test.

2. 发明授权

EP0601843B1 Quiet, single-cycle mechanism 失效
标题翻译：与中风沉默机制
公开(公告)号：EP0601843B1
公开(公告)日：1996-11-13
申请号：EP93309872.5
申请日：1993-12-08
申请人： LEXMARK INTERNATIONAL, INC.
发明人： Green, Timothy Allen , Klaffenbach, David Kurt , Marefat, Mohsen , Schoedinger, Kevin Dean
IPC分类号： F16H27/08 , B41J13/00
CPC分类号： F16H27/08 , Y10T74/1505 , Y10T74/19874

3. 发明公开

EP1054503A3 Method and apparatus for supplying AC power while meeting the european flicker and harmonic requirements 审中-公开
标题翻译：考虑到欧洲标准的闪变和谐波的方法和设备，交流供电
公开(公告)号：EP1054503A3
公开(公告)日：2001-01-17
申请号：EP00304207.4
申请日：2000-05-18
申请人： Lexmark International, Inc.
发明人： Cao, Jichang , Green, Timothy Allen , Harris, Steven Jeffrey , Sellers, Ronald Todd
IPC分类号： H02M5/257 , H05B39/02 , H02M1/12
CPC分类号： H05B1/0241 , G03G15/2003 , H05B3/0066
摘要： An improved control method is provided that combines conventional ON-OFF control and conventional phase-angle control to reduce the AC inrush current to an electrical load, such as a tungsten halogen lamp used as a heating element in a laser printer, so that the power control circuit can satisfy both the European flicker and European harmonic requirements. Phase-angle control is applied to the load for a very short time period when it is initially energized, then the control circuit quickly switches from phase-angle control to standard ON-OFF control to reduce the harmonics generated by conventional phase-angle control methodologies. The electrical load exhibits three possible states: power full OFF, power ramp-up, and power full ON. During the power ramp-up state, power supplied to the load is adjusted by delaying the phase angle of the firing pulse relative to the start of each AC half cycle. Depending upon whether or not the system demand has been satisfied, the load's state can be changed from either power ramp-up to power full ON, or from power ramp-up to power full OFF. The phase-angle control methodology used during the power ramp-up state must be of sufficient time duration to reduce the amount of flicker to pass the European flicker test. However, this power ramp-up time interval must also be as short as possible to keep the harmonics as small as possible to the load, without the requirement of adding a large AC current harmonic attenuation inductor, which would otherwise be needed to pass the European harmonic test.

4. 发明公开

EP0601843A1 Quiet, single-cycle mechanism 失效
标题翻译： GeräuscharmerMechanismus mit einem Arbeitshub。
公开(公告)号：EP0601843A1
公开(公告)日：1994-06-15
申请号：EP93309872.5
申请日：1993-12-08
申请人： LEXMARK INTERNATIONAL, INC.
发明人： Green, Timothy Allen , Klaffenbach, David Kurt , Marefat, Mohsen , Schoedinger, Kevin Dean
IPC分类号： F16H27/08 , B41J13/00
CPC分类号： F16H27/08 , Y10T74/1505 , Y10T74/19874
摘要： A low-noise, paper pick or other single cycle mechanism is obtained by employing a rotary solenoid (15) which has a force to a detent position which may be overcome by force from a drive roller (1). In the detent position the drive roller faces a blank sector (5) of a gear (3) which is integral with a shaft (7), which is the shaft to be turned. An electrical control signal to the solenoid rotates gear (3) through gear (13), which is directly driven by the solenoid, and which turns gear (11) on the shaft. The drive gear overcomes the force of the solenoid until it is disengaged after one cycle, at which time the detent force of the solenoid holds the mechanism in its detent position.
摘要翻译：通过采用旋转螺线管（15）可获得低噪声，纸张拾取或其它单循环机构，旋转螺线管（15）具有可通过来自驱动辊（1）的力克服的止动位置的力。在制动位置，驱动辊面对与作为转动轴的轴（7）成一体的齿轮（3）的空白扇区（5）。对螺线管的电气控制信号通过齿轮（13）旋转，齿轮（13）由螺线管直接驱动，并使轴上的齿轮（11）转动。驱动齿轮克服螺线管的力，直到其在一个循环之后被分离，此时螺线管的制动力将机构保持在其制动位置。

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