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1. 发明授权

US06489814B2 Track and hold amplifier 有权
标题翻译：跟踪和保持放大器
公开(公告)号：US06489814B2
公开(公告)日：2002-12-03
申请号：US09817969
申请日：2001-03-27
申请人： Gian Hoogzaad , Eise Carel Dijkmans , Raf Lodewijk Jan Roovers
发明人： Gian Hoogzaad , Eise Carel Dijkmans , Raf Lodewijk Jan Roovers
IPC分类号： G11C2702
CPC分类号： G11C27/026
摘要： A track and hold amplifier for use in analog/digital-converters comprises, in succession, an input buffer, a pn-junction switch and hold a capacitor. A feedback is provided between the hold capacitor and the input buffer and a second pn-junction switch is provided to disable the feedback during the hold mode.
摘要翻译：用于模拟/数字转换器的轨道和保持放大器包括输入缓冲器，pn结开关和保持电容器。在保持电容器和输入缓冲器之间提供反馈，并且提供第二pn结开关以在保持模式期间禁止反馈。

2. 发明授权

US06731231B2 Analogue to digital converter 有权
标题翻译：模数转换器
公开(公告)号：US06731231B2
公开(公告)日：2004-05-04
申请号：US10261843
申请日：2002-09-30
申请人： Raf Lodewijk Jan Roovers , Hendrik Van Der Ploeg , Gian Hoogzaad
发明人： Raf Lodewijk Jan Roovers , Hendrik Van Der Ploeg , Gian Hoogzaad
IPC分类号： H03M112
CPC分类号： H03M1/168
摘要： A pipeline/subranging architecture is used to provide a circuit for analog to a digital conversion. A course analog to digital converter, a fine analog to digital to converter, combining logic circuitry and a digital to analog converter are used, together with a voltage to current converter and a current to voltage converter. A residual signal is formed as the difference between the input signal and an output signal of the coarse analog to digital conversion, the latter output signal having been converted to analog form by the analog to digital converter. The residual signal is then scaled appropriately and applied to the fine analog to digital converter. A final output signal is based on the output signals of the coarse digital to analog converter and the fine digital to analog converter.
摘要翻译：管道/子架构用于提供用于模拟到数字转换的电路。使用模数转换器，精密模数转换器，组合逻辑电路和数模转换器，以及电压 - 电流转换器和电流 - 电压转换器。形成残留信号作为输入信号与粗略模数转换的输出信号之间的差值，后一个输出信号由模数转换器转换为模拟形式。然后将残余信号适当地缩放并应用于精细模数转换器。最终输出信号基于粗略数模转换器和精细数模转换器的输出信号。

3. 发明授权

US08723443B2 Method of controlling an LED, and an LED controller 有权
标题翻译：控制LED的方法和LED控制器
公开(公告)号：US08723443B2
公开(公告)日：2014-05-13
申请号：US13257266
申请日：2010-02-25
申请人： Peter Hubertus Franciscus Deurenberg , Gert-Jan Koolen , Gian Hoogzaad , Radu Surdeanu , Pascal Bancken , Benoit Bataillou , Viet Nguyen Hoang
发明人： Peter Hubertus Franciscus Deurenberg , Gert-Jan Koolen , Gian Hoogzaad , Radu Surdeanu , Pascal Bancken , Benoit Bataillou , Viet Nguyen Hoang
IPC分类号： H05B33/00
CPC分类号： H05B33/086 , H05B33/0815 , H05B33/0848
摘要： A method is disclosed of controlling a LED, comprising driving the LED with a DC current for a first time, interrupting the DC current for a second time such that the first time and the second time sum to a period, determining at least one characteristic of the LED while the DC current is interrupted, and controlling the DC current during a subsequent period in dependence on the at least one characteristic. The invention thus benefits from the simplicity of DC operation. By operating at the LED in a DC mode, rather than say in a PWM mode, the requirement to be able to adjust the duty cycle is avoided. By including interruptions to the DC current, it is possible to utilize the LED itself to act as a sensor in order to determine a characteristic of the LED. The need for additional sensors is thereby avoided.
摘要翻译：公开了一种控制LED的方法，包括第一次用DC电流驱动LED，第二次中断DC电流，使得第一时间和第二时间总和到一个周期，确定至少一个特性所述LED在DC电流中断期间，并且根据所述至少一个特性在随后的时段期间控制所述DC电流。因此，本发明由于DC操作的简单性而受益。通过在DC模式下操作LED，而不是在PWM模式下说明，可以避免能够调整占空比的要求。通过包含直流电流的中断，可以利用LED本身作为传感器，以便确定LED的特性。从而避免了对附加传感器的需要。

4. 发明授权

US08605465B2 Methods of controlling a synchronous rectifier 有权
标题翻译：控制同步整流器的方法
公开(公告)号：US08605465B2
公开(公告)日：2013-12-10
申请号：US12960332
申请日：2010-12-03
申请人： Johann Baptist Daniel Kuebrich , Markus Schmid , Thomas Antonius Duerbaum , Frans Pansier , Gian Hoogzaad , Hans Halberstadt
发明人： Johann Baptist Daniel Kuebrich , Markus Schmid , Thomas Antonius Duerbaum , Frans Pansier , Gian Hoogzaad , Hans Halberstadt
IPC分类号： H02M3/335
CPC分类号： H03K5/1532 , H02M3/33592 , H03K5/1536 , H03K17/133 , Y02B70/1475
摘要： Consistent with an example embodiment, there is a method of controlling a synchronous rectifier having an input signal having oscillations therein and a switch which is switchable between an open state and a closed state. The method comprises filtering the input signal to produce a filtered signal, comparing the filtered signal with a reference value, and opening the switch in response to the comparison, in which the filtering is active filtering.The active filtering may be based on determination of the peaks (positive and/or negative) of the signal, either directly, including a quarter period offset, or including decay—or a combination of the above; alternatively, the active filtering may be based on the a smoothing functions such as a switched low-pass filter or a short time integrator.
摘要翻译：与示例性实施例一致，存在一种控制具有其中具有振荡的输入信号的同步整流器和可在打开状态和闭合状态之间切换的开关的方法。该方法包括对输入信号进行滤波以产生滤波信号，将滤波信号与参考值进行比较，并响应于比较而打开开关，其中滤波是有源滤波。有源滤波可以基于直接确定信号的峰值（正和/或负），包括四分之一周期偏移，或包括衰减或上述的组合; 或者，有源滤波可以基于平滑功能，例如开关低通滤波器或短时间积分器。

5. 发明申请

US20130154494A1 ELECTRONIC DEVICE FOR DRIVING LIGHT EMITTING DIODES 有权
公开(公告)号：US20130154494A1
公开(公告)日：2013-06-20
申请号：US13546110
申请日：2012-07-11
申请人： Gian Hoogzaad , Frans Pansier
发明人： Gian Hoogzaad , Frans Pansier
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0824 , H05B33/0851 , H05B37/02
摘要： The present invention relates to an electronic device for driving a light emitting diode, which includes a switch (Ts) being adapted to switch a switch-mode power converter, and controlling means (CNTL) being adapted for controlling the switch (Ts) in response to a sensing value (Vs) indicative of a current of the switch-mode power converter and for controlling by the switch (Ts) the output voltage of the switched power converter and a current (Tout) through the light emitting diode.

6. 发明申请

US20110163695A1 POWER SUPPLY UNIT AND METHOD FOR CONTROLLING A POWER SUPPLY UNIT 有权
标题翻译：电源单元和控制电源单元的方法
公开(公告)号：US20110163695A1
公开(公告)日：2011-07-07
申请号：US13062176
申请日：2009-09-04
申请人： Markus Schmid , Thomas Antonius Duerbaum , Gian Hoogzaad , Peter Laro , Johann Baptist Daniel Kuebrich
发明人： Markus Schmid , Thomas Antonius Duerbaum , Gian Hoogzaad , Peter Laro , Johann Baptist Daniel Kuebrich
IPC分类号： H05B41/38 , H02J1/00
CPC分类号： H02J1/14 , H02M2001/007 , H02M2001/008 , Y10T307/406 , Y10T307/469
摘要： A power supply unit is provided which comprises an AC/DC conversion unit with an input to which an input voltage is coupled and an output to which a DC bus voltage is coupled. The power supply unit furthermore comprises a DC bus capacitor which is coupled to the output of the AC/DC conversion unit. The power supply unit furthermore comprises at least one sub-power supply unit receiving the DC bus voltage as input for providing at least one power supply. The power supply of the at least one sub-power supply unit or part of the load is at least reduced or switched off if the input voltage falls below a predetermined threshold value.
摘要翻译：提供了一种电源单元，其包括具有与输入电压耦合的输入的AC / DC转换单元和连接有DC总线电压的输出。电源单元还包括耦合到AC / DC转换单元的输出的DC总线电容器。电源单元还包括至少一个子电源单元，其接收DC总线电压作为用于提供至少一个电源的输入。如果输入电压低于预定阈值，则至少一个子电源单元或负载的一部分的电源至少减小或关断。

7. 发明申请

US20110109247A1 SWITCHED MODE POWER CONVERTER AND METHOD OF OPERATING THE SAME 审中-公开
标题翻译：开关电源转换器及其操作方法
公开(公告)号：US20110109247A1
公开(公告)日：2011-05-12
申请号：US13002684
申请日：2009-06-30
申请人： Gian Hoogzaad , Peter Hubertus Franciscus Deurenberg
发明人： Gian Hoogzaad , Peter Hubertus Franciscus Deurenberg
IPC分类号： H05B33/08 , H03K3/011
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/083 , Y02B20/346
摘要： A switched mode power converter is disclosed, together with a method for operating the same. The power converter is adapted to be operable in the boundary conduction mode, and operation is interruptible in the absence of any load requirement.
摘要翻译：公开了一种开关式功率转换器及其操作方法。功率转换器适于在边界传导模式下可操作，并且在没有任何负载要求的情况下操作是可中断的。

8. 发明授权

US07916418B2 Apparatus and method for controlling the rotation velocity of an optical disc 有权
标题翻译：用于控制光盘旋转速度的装置和方法
公开(公告)号：US07916418B2
公开(公告)日：2011-03-29
申请号：US11915634
申请日：2006-05-17
申请人： Joop Van Bijnen , Gian Hoogzaad
发明人： Joop Van Bijnen , Gian Hoogzaad
IPC分类号： G11B15/46
CPC分类号： G11B19/26
摘要： Method and apparatus for controlling the rotation velocity of an optical disc in a wide range of velocities, including low velocities. In a first range of velocities, a first sensor, for example an EMF sensor, is used to control the commutation moments of a turntable motor. For velocities outside the first range, a periodic control signal based on a periodic second signal generated by a second sensor and a mapping between the first and second periodic signal are used. The method and the apparatus are suitable for LightScribe™ applications.
摘要翻译：用于在宽的速度范围内控制光盘的旋转速度的方法和装置，包括低速度。在第一速度范围内，使用第一传感器（例如EMF传感器）来控制转盘马达的换向力矩。对于超出第一范围的速度，使用基于由第二传感器产生的周期性第二信号的周期性控制信号和第一和第二周期信号之间的映射。该方法和设备适用于LightScribe™应用。

9. 发明申请

US20100194274A1 LIGHT EMITTING DIODE (LED) ARRANGEMENT WITH BYPASS DRIVING 有权
标题翻译：发光二极管（LED）安排旁路驱动
公开(公告)号：US20100194274A1
公开(公告)日：2010-08-05
申请号：US12669384
申请日：2008-07-16
申请人： Gian Hoogzaad
发明人： Gian Hoogzaad
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0803 , H05B33/083
摘要： The invention provides a LED arrangement including a LED string of a series arrangement of LED segments. A LED segment includes a single LED or a series arrangement of LEDs. A switching element (12, 22) is arranged in parallel with each corresponding LED segment (10, 20) of the LED string, for controlling a current (52, 62) through the LED segment (10, 20). A capacitor (13, 23) is arranged in parallel with each corresponding LED segment (10, 20) in order to prevent the occurrence of possibly harmful current spikes while switching one or more LED segments. The LED arrangement may also include a switched-mode power supply (2001). The invention further provides a LED assembly. A plurality of such LED assemblies assembles easily into a LED arrangement according to the invention.
摘要翻译：本发明提供一种LED装置，其包括LED段的串联布置的LED串。 LED段包括单个LED或LED的串联布置。开关元件（12,22）与LED串的每个对应的LED段（10,20）平行布置，用于控制通过LED段（10,20）的电流（52,62）。电容器（13,23）与每个对应的LED段（10,20）平行布置，以便在切换一个或多个LED段时防止可能有害的电流尖峰的发生。 LED布置还可以包括开关模式电源（2001）。本发明还提供一种LED组件。多个这样的LED组件容易地组装成根据本发明的LED装置。

10. 发明申请

US20090284193A1 Method for Controlling a Deceleration Process of a DC Motor and Controller 有权
公开(公告)号：US20090284193A1
公开(公告)日：2009-11-19
申请号：US12307152
申请日：2007-07-03
申请人： Gian Hoogzaad
发明人： Gian Hoogzaad
IPC分类号： H02P3/14
CPC分类号： H02P23/20
摘要： The invention is directed to a method for controlling a deceleration process of a DC motor (20), wherein the DC motor (20) is driven by a bridge driver (18) coupled to a power supply (12) intended to provide a supply voltage VDD at a power supply output (14), the method comprising the following steps: applying a deceleration PWM signal to the bridge driver (18) for decelerating the DC motor (20), and controlling the bridge driver (18) such that a motor-induced back current is reduced, if the voltage at the power supply output (14) exceeds a first voltage threshold which is higher than VDD. In accordance with the invention the method comprises the following step: if the voltage at the power supply output (14) falls below a second voltage threshold which is lower than the first voltage threshold, terminating controlling the bridge driver (18) such that the motor-induced back current is reduced. The invention is also directed to a controller (10) for controlling a deceleration process of a DC motor (20) which is driven by a bridge driver (18) coupled to a power supply (12) intended to provide a supply voltage VDD at a power supply output (14), the controller (10) comprising: means (22) for applying a deceleration PWM signal to the bridge driver for decelerating the DC motor, and means (24, 26, 28; 24, 30) for controlling the bridge driver (18) such that the motor-induced back current is reduced, if the voltage at the power supply output (14) exceeds a first voltage threshold which is higher than VDD. In accordance with the invention the means for controlling the bridge driver (18) such that the motor-induced back current is reduced are adapted to terminate controlling the bridge driver (18) such that the motor-induced back current is reduced, if the voltage at the power supply output (14) falls below a second voltage threshold which is lower than the first voltage threshold.

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