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1. 发明申请

US20070229012A1 METHODS AND APPARATUS FOR COMMUTATING A BRUSHLESS DC MOTOR IN A LASER PRINTER 有权
标题翻译：无刷直流电机在激光打印机中的方法和装置
公开(公告)号：US20070229012A1
公开(公告)日：2007-10-04
申请号：US11394778
申请日：2006-03-31
申请人： Aaron Lambert , Steven Turney
发明人： Aaron Lambert , Steven Turney
IPC分类号： H02P3/00
CPC分类号： H02P6/10 , H02P23/0004
摘要： In a laser printer, methods and apparatus include commutating a brushless dc motor having three windings. A controller receives discrete motor position signals, such as from hall-effect or FG sensors, and extrapolates motor position between the signals. It commutates the motor based on the extrapolated motor position and updates motor position whenever an actual discrete signal is received. Drive signals from the controller to the motor are such that a current flowing in any of the three windings follows a generally sinusoidal waveform. High and low switches are provided per each winding of the three windings and are cumulatively switched according to an extrapolated motor position based multiplier applied to a pulse width modulation duty cycle. In this regard, lookup tables, counters, registers and the like are provided. An engine card of the printer includes an ASIC with a power driver for use with generally off-the-shelf brushless dc motors.
摘要翻译：在激光打印机中，方法和装置包括换向具有三个绕组的无刷直流电动机。控制器接收离散电机位置信号，如霍尔效应或FG传感器，并在信号之间外推电机位置。每当接收到实际的离散信号时，它会根据外插电机位置对电机进行换向，并更新电机位置。从控制器到电动机的驱动信号使得在三个绕组中的任何一个中流动的电流遵循大体正弦波形。按照三个绕组的每个绕组提供高和低开关，并根据施加到脉冲宽度调制占空比的外插电机位置乘法器进行累加切换。在这方面，提供查找表，计数器，寄存器等。打印机的发动机卡包括具有用于通常是现成的无刷直流电动机的功率驱动器的ASIC。

2. 发明申请

US20050212472A1 Method and apparatus for time-based dc motor commutation 有权
标题翻译：基于时间的直流电机换向的方法和装置
公开(公告)号：US20050212472A1
公开(公告)日：2005-09-29
申请号：US10808101
申请日：2004-03-24
申请人： Danny Chapman , Thomas Fields , Steven Turney
发明人： Danny Chapman , Thomas Fields , Steven Turney
IPC分类号： H02P6/14 , H02P5/06
CPC分类号： H02P6/14
摘要： A motor control circuit uses a stored commutation table to effect time-based commutation of a brushless dc motor. Each entry in the commutation table defines a motor winding commutation state, and an exemplary method of open-loop motor control based on the commutation table comprises commutating the motor based on sequentially selecting table entries at a desired selection rate. That is, motor speed is controlled precisely by controlling the sequential selection rate rather than by relying on feedback from the motor. However, motor feedback for closed-loop control may be used in some modes of operation. For example, the method may include closed-loop control or open-loop control depending on the motor speed range, and may transition from closed-loop to open-loop control.
摘要翻译：电动机控制电路使用存储的换向表来实现无刷直流电动机的基于时间的换向。换向表中的每个条目定义了电动机绕组换向状态，并且基于换向表的开环电动机控制的示例性方法包括基于以期望的选择速率顺序地选择表格条目来对电动机进行换向。也就是说，通过控制顺序选择速度而不是依靠来自电动机的反馈来精确地控制电动机速度。然而，用于闭环控制的电动机反馈可以在某些操作模式中使用。例如，该方法可以包括根据电动机速度范围的闭环控制或开环控制，并且可以从闭环转到开环控制。

3. 发明申请

US20070264036A1 A Method and Apparatus to Detect Loads Associated with One of a Plurality of Components Driven by a Shared Motor in an Image Forming Apparatus 有权
标题翻译：一种用于检测由图像形成装置中的共享电动机驱动的多个部件之一相关联的负载的方法和装置
公开(公告)号：US20070264036A1
公开(公告)日：2007-11-15
申请号：US11383266
申请日：2006-05-15
申请人： Michael Craig , Steven Turney , Danny Chapman
发明人： Michael Craig , Steven Turney , Danny Chapman
IPC分类号： G03G21/00 , G03G21/12
CPC分类号： G03G21/12 , G03G21/105 , G03G2215/0685 , G03G2215/0888 , G03G2221/1624
摘要： An image forming apparatus includes a waste toner system that collects waste toner in a waste toner container. An amount of waste toner collected in the container is increased by using a driven toner distributing member that distributes accumulated toner within the container. The toner distributing member may be driven by a shared speed-controlled motor that further drives an image forming process member. The waste toner system may detect the accumulation of waste toner by monitoring a drive control circuit while the toner distributing member is being driven. For example, a logic circuit may detect the accumulation of waste toner based on monitoring a predetermined frequency of interest of a frequency domain transform of a motor control signal, the frequency of interest associated with the shared motor driving the toner distributing member.
摘要翻译：图像形成装置包括在废调色剂容器中收集废调色剂的废调色剂系统。通过使用将累积的调色剂分配在容器内的驱动调色剂分配构件来增加收集在容器中的废调色剂的量。调色剂分配构件可以由进一步驱动图像形成处理构件的共享速度控制电动机驱动。废调色剂系统可以通过在驱动调色剂分配构件的同时监视驱动控制电路来检测废调色剂的积聚。例如，逻辑电路可以基于监视与驱动调色剂分配构件的共享电动机相关联的电动机控制信号的频域变换的预定频率感测来检测废调色剂的累积。

4. 发明申请

US20060250104A1 Encoder eccentricity correction for motion control systems 有权
公开(公告)号：US20060250104A1
公开(公告)日：2006-11-09
申请号：US11121576
申请日：2005-05-04
申请人： Brian Reichert , Steven Turney , Danny Chapman , Thomas Fields
发明人： Brian Reichert , Steven Turney , Danny Chapman , Thomas Fields
IPC分类号： G05B19/40 , G05D13/00
CPC分类号： G02B26/122 , G05B19/404 , G05B2219/37151 , G05B2219/37515
摘要： Correction of rotary encoder eccentricity in an image forming device having a motor controller using period and position pulse train feedback signals. A motor includes an encoder disc rotating with the motor and at least two encoder sensors disposed at different circumferential positions about the encoder disc. A controller may use a high speed clock to calculate a corrected speed count based on speed counts determined from the number of clock cycles that elapse per cycle of pulse trains from the encoders. The controller may also calculate a corrected position count based at least partly on one or more position counts determined from the number of clock cycles that elapse between periodic sampling points and transitions of encoder pulse trains. The corrected position count may also be calculated based on a position count and one or more speed counts.

5. 发明申请

US20060257171A1 Paddle positioning system 有权
标题翻译：桨定位系统
公开(公告)号：US20060257171A1
公开(公告)日：2006-11-16
申请号：US11126835
申请日：2005-05-11
申请人： Benjamin Askren , Lenci Kappes , Steven Turney
发明人： Benjamin Askren , Lenci Kappes , Steven Turney
IPC分类号： G03G15/08
CPC分类号： G03G15/0872 , G03G15/0856 , G03G15/0862
摘要： The present invention is directed to an article, system and method for determining and/or selecting the location of a toner engaging member in a developing agent device such as a toner cartridge. The article, system and method may be applied to a printing device such as a laser printer.
摘要翻译：本发明涉及用于确定和/或选择调色剂接合构件在诸如调色剂盒的显影剂装置中的位置的制品，系统和方法。物品，系统和方法可以应用于诸如激光打印机的打印装置。

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