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公开(公告)号：US5898288A
公开(公告)日：1999-04-27
申请号：US789903
申请日：1997-01-29
CPC分类号： G05B19/21 , G05B2219/34062 , G05B2219/41102 , G05B2219/41329
摘要： Disclosed herein is a motion monitoring system for monitoring movement of a brush-type DC motor. The system includes an electrical comparator having first and second differential inputs. A current detector is connected to provide a drive current signal to the first differential input of the comparator. A low-pass filter is connected to provide an averaged drive current signal to the second differential input of the comparator. When a drive current is applied to the motor, the comparator produces a stream of binary logic-level pulses corresponding to motor movement. The pulses can be used to determine motor position and velocity.
摘要翻译： 这里公开了一种用于监测刷式直流电动机的运动的运动监控系统。 该系统包括具有第一和第二差分输入的电气比较器。 连接电流检测器以向比较器的第一差分输入提供驱动电流信号。 连接低通滤波器以向比较器的第二差分输入提供平均的驱动电流信号。 当驱动电流施加到电动机时，比较器产生对应于电机运动的二进制逻辑电平脉冲流。 脉冲可用于确定电机的位置和速度。
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公开(公告)号：US5914865A
公开(公告)日：1999-06-22
申请号：US956973
申请日：1997-10-23
申请人： George Barbehenn , Huston W Rice
发明人： George Barbehenn , Huston W Rice
CPC分类号： H02M1/40 , H02M3/33523 , Y10S323/902
摘要： An AC-DC switching converter converts AC mains power into regulated DC power into a load. It is desired to electrically isolate the load from the mains, and this requires isolation in both the forward power transfer path and the reverse feedback path. The forward path is isolated by use of a transformer, and the feedback signal is transferred through an optocoupler. In a typical pulsewidth modulation control loop design, it is difficult to achieve good loop dynamics when using low cost optocouplers, because of the wide variation of their transfer function gain. However, in the disclosed invention, the loop is operated as a nonlinear limit cycle ("bang--bang") controller. In this mode, the optocoupler gain variation has an insignificant effect on loop operation. The converter switching signal is provided by an inexpensive 555 timer oscillator, and the optocoupler is connected to the reset pin of this timer to turn it ON and OFF in short bursts, as is characteristic of this type of controller. Since a converter must operate over a mains voltage range of about 3:1, the disclosure also includes a technique for protecting the transformer from possible saturation by narrowing the oscillator pulses as an inverse function of the mains voltage.
摘要翻译： AC-DC开关转换器将交流电源转换为负载中的稳压直流电源。 期望将负载与电源电隔离，并且这需要正向功率传输路径和反向反馈路径中的隔离。 通过使用变压器隔离正向通路，反馈信号通过光耦合器传输。 在典型的脉宽调制控制环路设计中，由于传输函数增益的变化很大，所以在使用低成本光耦合器时难以实现良好的环路动态。 然而，在所公开的发明中，环路作为非线性极限周期（“邦邦”）控制器运行。 在这种模式下，光耦合器增益变化对环路运行影响不大。 转换器切换信号由便宜的555定时器振荡器提供，并且光耦合器连接到该定时器的复位引脚，以短脉冲串将其打开和关闭，这是这种类型的控制器的特征。 由于转换器必须在大约3:1的电源电压范围内工作，所以本公开还包括一种用于通过使振荡器脉冲变窄作为电源电压的反函数来保护变压器免受可能饱和的技术。
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公开(公告)号：US5625279A
公开(公告)日：1997-04-29
申请号：US625573
申请日：1996-03-28
申请人： Huston W. Rice , George Barbehenn
发明人： Huston W. Rice , George Barbehenn
CPC分类号： H02M3/156
摘要： A switching DC-DC converter, with regulation of the output, is disclosed. Unlike prior art converters, the source of the switching signal is not a free-running oscillator, but a rectangular waveform whose frequency and duty cycle parameters are under the control of an external processor. By appropriately varying these parameters, the processor dynamically modifies the characteristics of the converter, in effect optimizing its design to deal efficiently with different operating states such as circuit startup, sudden load changes the processor "knows" about in advance, and even design changes over the life of the converter. Once the processor sets up appropriate parameters for an existing or anticipated state, a hardware feedback loop regulates the output voltage of the converter by reducing the width and/or number of switching pulses. Thus, the processor is not part of the voltage regulation process but is free to devote attention to other parts of the system in which the converter resides.
摘要翻译： 公开了一种具有调节输出的开关DC-DC转换器。 与现有技术的转换器不同，开关信号的源不是自由运行的振荡器，而是频率和占空比参数在外部处理器的控制下的矩形波形。 通过适当地改变这些参数，处理器动态地改变转换器的特性，实际上优化其设计以有效地处理诸如电路启动，处理器事先突然加载的改变，甚至设计改变的不同的操作状态 转换器的寿命。 一旦处理器为现有或预期状态设置适当的参数，硬件反馈回路通过减小开关脉冲的宽度和/或数量来调节转换器的输出电压。 因此，处理器不是电压调节过程的一部分，而是可以自由地将注意力转移到转换器所在的系统的其他部分。
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公开(公告)号：US5774136A
公开(公告)日：1998-06-30
申请号：US561470
申请日：1995-11-21
申请人： George Barbehenn , Martin K. Mason
发明人： George Barbehenn , Martin K. Mason
IPC分类号： B41J2/175 , G01F23/296 , B41J2/195
CPC分类号： G01F23/2962 , B41J2/17566 , B41J2002/17576 , B41J2002/17583
摘要： The present invention relates generally to inkjet printing mechanisms, and more particularly to an ultrasonic method for monitoring the ink level in an ink reservoir for an ink jet cartridge. This ultrasonic method includes the steps of sending an ultrasonic signal towards the ink reservoir, and receiving a series of reflected ultrasonic signals from the reservoir. In a processing step, the series of received reflected ultrasonic signals are processed in order to determine the ink level in the reservoir.
摘要翻译： 本发明一般涉及喷墨打印机构，更具体地说，涉及一种用于监控用于喷墨墨盒的墨水容器中的墨水量的超声波方法。 这种超声波方法包括以下步骤：向储墨器发送超声波信号，以及从储存器接收一系列反射的超声波信号。 在处理步骤中，处理一系列接收的反射超声波信号，以便确定储存器中的墨水量。
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公开(公告)号：US20070019343A1
公开(公告)日：2007-01-25
申请号：US11188093
申请日：2005-07-25
申请人： George Barbehenn , John Stone
发明人： George Barbehenn , John Stone
IPC分类号： H02H7/00
CPC分类号： H02H7/1227 , H02M1/32 , H02M3/33507
摘要： In one embodiment, the bulk input voltage is used to form a reference signal that is used for controlling a switching power supply system to operate in a power overload operating mode.
摘要翻译： 在一个实施例中，大容量输入电压用于形成用于控制开关电源系统在功率过载操作模式下操作的参考信号。
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6.发明授权
公开(公告)号：US5929789A
公开(公告)日：1999-07-27
申请号：US840079
申请日：1997-04-09
申请人： George Barbehenn
发明人： George Barbehenn
CPC分类号： B41J11/42 , G01D5/2457 , G01D5/366
摘要： A position encoder system is provided, the system employing a medium having a track with incremental markings which define an embedded reference position identifier. Upon movement of the medium, a sensor detects passage of the incremental markings, each such marking being indicative of a predetermined movement of the medium. The sensor also detects the embedded reference position identifier, and correspondingly, provides a recognizable index pulse for use in determining an absolute position of the medium.
摘要翻译： 提供了一种位置编码器系统，该系统采用具有定义嵌入的参考位置标识符的具有增量标记的轨道的介质。 在介质移动时，传感器检测增量标记的通过，每个这样的标记指示介质的预定移动。 传感器还检测嵌入的参考位置标识符，并且相应地提供用于确定介质的绝对位置的可识别的索引脉冲。
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公开(公告)号：US5677577A
公开(公告)日：1997-10-14
申请号：US708172
申请日：1996-08-08
申请人： George Barbehenn , John Eaton
发明人： George Barbehenn , John Eaton
CPC分类号： B41J2/04541 , B41J2/04543 , B41J2/04568 , B41J2/0458 , B41J2/04591
摘要： In thermal inkjet printing, an energy source supplies voltage pulses to a set of resistors in a printhead. The resistors are not necessarily equal-valued. The subset of energized resistors changes from pulse to pulse as a function of the printable data. As the subsets vary, resulting in a varying load on the energy source, this causes undesirable variations in the energy supplied to individual resistors, even when a regulated source is used, because of residual impedances in the source and wiring. The invention compensates for such energy variations, using information about which subset of resistors is to be energized during a pulse. By determining the electrical load presented by the subset, and by referring to a predetermined relation between the load value and the voltage drop in the residual impedances, the invention maintains nominally constant energy in individual pulsed resistors by an appropriate adjustment of the pulse width.
摘要翻译： 在热喷墨打印中，能量源将电压脉冲提供给打印头中的一组电阻器。 电阻器不一定是等价的。 通电电阻的子集作为可打印数据的函数从脉冲变为脉冲。 随着子集变化，导致能源上的负载变化，即使使用调节源，由于源极和接线中的残留阻抗，这也会导致供给各个电阻器的能量的不良变化。 本发明使用关于在脉冲期间被激励哪些电阻子集的信息来补偿这种能量变化。 通过确定由子集提供的电负载，并且通过参考负载值和剩余阻抗中的电压降之间的预定关系，本发明通过对脉冲宽度的适当调整在单个脉冲电阻器中维持标称恒定的能量。
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公开(公告)号：US5583421A
公开(公告)日：1996-12-10
申请号：US289024
申请日：1994-08-10
申请人： George Barbehenn , Steven B. Elgee
发明人： George Barbehenn , Steven B. Elgee
CPC分类号： H02M3/005 , H02M3/335 , H02M2003/1557
摘要： In DC-DC switching converters of the single-ended primary inductance (SEPIC) type, using a high frequency transformer to isolate the load from the AC power line is difficult because its leakage inductance causes serious circuit problems. In the invention, an additional coupling capacitor provides the required DC isolation without affecting circuit performance. The total coupling capacitance may be chosen to limit the power line frequency leakage current to a safe value.
摘要翻译： 在单端初级电感（SEPIC）类型的DC-DC开关转换器中，使用高频变压器将负载与交流电源线隔离是困难的，因为它的漏电感会导致严重的电路问题。 在本发明中，附加耦合电容器提供所需的DC隔离，而不影响电路性能。 可以选择总耦合电容以将电力线频率泄漏电流限制到安全值。
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9.发明授权Integrated circuit printhead for an ink jet printer including an integrated identification circuit 失效用于包括集成识别电路的喷墨打印机的集成电路打印头
公开(公告)号：US5363134A
公开(公告)日：1994-11-08
申请号：US886641
申请日：1992-05-20
IPC分类号： B41J2/01 , B41J2/05 , B41J2/175 , G06F13/366 , G06K19/07
CPC分类号： B41J2/17546 , B41J2/04506 , B41J2/04541 , B41J2/04543 , B41J2/04563 , B41J2/0458 , B41J2/175 , G06K19/07 , B41J2202/17
摘要： An integrated circuit for use in the printhead of an ink jet printer includes an array circuit for heating an ink reservoir to produce a pattern of ink jets, the array circuit including a plurality of resistor cells arranged into rows and columns. A corresponding number of row and column lines are coupled to the integrated circuit array for selecting and energizing the resistor cells according to the desired printing pattern. An identification circuit integrated into the same substrate as the array circuit includes one or more programmable paths, the programmable paths corresponding and coupled to each row line. The programmable paths each include the serial combination of a programmable fuse and an active device. The opposite end of the programmable paths are coupled together at a common node, which in turn is coupled to an output circuit for providing a single output signal in response to a polling of the row lines. The identification circuit can be programmed and polled without adversely affecting or energizing the array circuit.
摘要翻译： 用于喷墨打印机的打印头的集成电路包括用于加热墨水储存器以产生喷墨图案的阵列电路，该阵列电路包括布置成行和列的多个电阻单元。 相应数量的行和列线耦合到集成电路阵列，用于根据期望的打印模式选择和激励电阻单元。 集成在与阵列电路相同的衬底中的识别电路包括一个或多个可编程路径，可编程路径对应并耦合到每条行线。 可编程路径各自包括可编程保险丝和有源器件的串行组合。 可编程路径的相对端在公共节点处耦合在一起，该公共节点又耦合到输出电路，以响应于对行线的轮询来提供单个输出信号。 可以对识别电路进行编程和轮询，而不会对阵列电路造成不利影响或激励。
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