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1. 发明申请

US20230018395A1 CHARGE DOMAIN MATHEMATICAL ENGINE AND METHOD 有权
公开(公告)号：US20230018395A1
公开(公告)日：2023-01-19
申请号：US17955959
申请日：2022-09-29
申请人： DAVID SCHIE , SERGEY GAITUKEVICH , PETER DRABOS , ANDRES SIBRAI , ERIK SIBRAI
发明人： DAVID SCHIE , SERGEY GAITUKEVICH , PETER DRABOS , ANDRES SIBRAI , ERIK SIBRAI
IPC分类号： G06N3/063 , G11C11/54 , G11C19/08 , H01L29/423 , H01L29/792 , H03K3/02 , H03K23/00
摘要： A multiplier has a pair of charge reservoirs. The pair of charge reservoirs are connected in series. A first charge movement device induces charge movement to or from the pair of charge reservoirs at a same rate. A second charge movement device induces charge movement to or from one of the pair of reservoirs, the rate of charge movement programmed to one of add or remove charges at a rate proportional to the first charge movement device. The first charge movement device loads a first charge into a first of the pair of charge reservoirs during a first cycle. The first charge movement device and the second charge movement device remove charges at a proportional rate from the pair of charge reservoirs during a second cycle until the first of the pair of charge reservoirs is depleted of the first charge. The second charge reservoir thereafter holding the multiplied result.

2. 发明授权

US10515035B2 Direct drive LED driver and offline charge pump and method therefor 有权
公开(公告)号：US10515035B2
公开(公告)日：2019-12-24
申请号：US16167206
申请日：2018-10-22
申请人： David Schie , Mike Ward
发明人： David Schie , Mike Ward
IPC分类号： G06F13/28 , G06F13/40 , H02M3/07 , H05B33/00 , H03K19/177
摘要： In one embodiment, a Light Emitting Diode (LED) driving device for driving a plurality of LEDs has a switching matrix utilizing a plurality of one of a turn off thyristors or turn off triacs coupled to the plurality of LEDs. A controller is coupled to the switching matrix responsive to a voltage of a rectified AC halfwave, wherein combinations of the plurality of LEDs are altered to ensure a maximum operating voltage of the plurality of LEDs is not exceeded. A current limiting device is coupled to the combinations of the plurality of LED to regulate current.In a second embodiment an offline charge pump utilizes a switching matrix to recombine capacitors in accordance with the voltage on the AC half wave and then in accordance with a desired output voltage to feed a load, such that said recombinations occur at a frequency much higher than the frequency of the AC rectified half wave such that charge is “pumped” from the input at one voltage to the output at another voltage through the AC halfwave while providing a constant output voltage to the load.

3. 发明申请

US20190188169A1 DIRECT DRIVE LED DRIVER AND OFFLINE CHARGE PUMP AND METHOD THEREFOR 审中-公开
公开(公告)号：US20190188169A1
公开(公告)日：2019-06-20
申请号：US16167124
申请日：2018-10-22
申请人： DAVID SCHIE , MIKE WARD
发明人： DAVID SCHIE , MIKE WARD
IPC分类号： G06F13/28 , H02M3/07 , G06F13/40 , H05B33/00
CPC分类号： G06F13/28 , G06F13/4009 , H02M3/07 , H03K19/177 , H05B33/00
摘要： In one embodiment, a Light Emitting Diode (LED) driving device for driving a plurality of LEDs has a switching matrix utilizing a plurality of one of a turn off thyristors or ten off triacs coupled to the plurality of LEDs. A controller is coupled to the switching matrix responsive to a voltage of a rectified AC halfwave, wherein combinations of the plurality of LEDs are altered to ensure a maximum operating voltage of the plurality of LEDs is not exceeded. A current limiting device is coupled to the combinations of the plurality of LED to regulate current.In a second embodiment an offline charge pump utilizes a switching matrix to recombine capacitors in accordance with the voltage on the AC half wave and then in accordance with a desired output voltage to feed a load, such that said recombinations occur at a frequency much higher than the frequency of the AC rectified half wave such that charge is “pumped” from the input at one voltage to the output at another voltage through the AC halfwave while providing a constant output voltage to the load.

4. 发明申请

US20190155773A1 DIRECT DRIVE LED DRIVER AND OFFLINE CHARGE PUMP AND METHOD THEREFOR 审中-公开
公开(公告)号：US20190155773A1
公开(公告)日：2019-05-23
申请号：US16167147
申请日：2018-10-22
申请人： David SCHIE , Mike WARD
发明人： David SCHIE , Mike WARD
IPC分类号： G06F13/28 , H02M3/07 , G06F13/40 , H05B33/00
摘要： In one embodiment, a Light Emitting Diode (LED) driving device for driving, a plurality of LEDs has a switching matrix utilizing a plurality of one of a turn off thyristors or turn off triacs coupled to the plurality of LEDs. A controller is coupled to the switching matrix responsive to a voltage of a rectified AC halfwave, wherein combinations of the plurality of LEDs are altered to ensure a maximum operating voltage of the plurality of LEDs is not exceeded. A current limiting device is coupled to the combinations of the plurality of LED to regulate current.In a second embodiment an offline charge pump utilizes a switching matrix to recombine capacitors in accordance with the voltage on the AC half wave and then in accordance with a desired output voltage to feed a load, such that said recombinations occur at a frequency much higher than the frequency of the AC rectified half wave such that charge is “pumped” from the input at one voltage to the output at another voltage through the AC halfwave while providing a constant output voltage to the load.

5. 发明授权

US10263533B2 Gated thyristor power device having a rapid turn off time 有权
公开(公告)号：US10263533B2
公开(公告)日：2019-04-16
申请号：US14828335
申请日：2015-08-17
申请人： David Schie
发明人： David Schie
IPC分类号： H02M7/155 , H02M7/145 , H01L29/745 , H02M1/42 , H01L29/10
摘要： An improved gated thyristor that utilizes less silicon area than IGBT, BIPOLARs or MOSFETs sized for the same application is provided. Embodiments of the inventive thyristor have a lower gate charge, and a lower forward drop for a given current density. Embodiments of the thyristor once triggered have a latch structure that does not have the same Cgd or Ceb capacitor that must be charged from the gate, and therefore the gated thyristor is cheaper to produce, and requires a smaller gate driver, and takes up less space than standard solutions. Embodiments of the inventive thyristor provide a faster turn off speed than the typical >600 ns using a modified MCT structure which results in the improved tail current turn off profile (

6. 发明授权

US10097243B2 Isolator 有权
公开(公告)号：US10097243B2
公开(公告)日：2018-10-09
申请号：US14214722
申请日：2014-03-15
申请人： David Schie
发明人： David Schie
IPC分类号： G01R19/00 , H04B5/00
摘要： A monolithic isolator circuit is provided which replaces optocoupler feedback configurations which are prone to wear out, lack reliability, and bandwidth limitations. By communicating only a subset of a sigma delta modulators quantizer across the isolator but closing the modulator loop on the primary side, much wider bandwidth communications of analog information can be achieved than with optocouplers. This allows for the use of the proposed isolator for cycle by cycle loop control and protection functions which previously required components on the local side of the isolation. The monolithic isolator circuit can be extended to isolate analog to digital converters (ADC), analog buffers, and to isolated current sense amplifiers (CSA). The monolithic isolator circuit utilizes a z-domain differential delay line to create an error in conformance with the difference between the feedback magnitude and a reference. Z-domain differential delay lines have a fast response, and may be windowed and event driven making these delay lines very current efficient. The conformance error may be fed to a digital compensator (such as a proportional-integral-derivative (PID) compensator) and finally to a z-domain modulator. The z-domain modulator may be one of several constructions, however, to achieve a reasonable number of bits a delta sigma structure, such as an error feedback structure, is utilized for the modulator.

7. 发明申请

US20130200815A1 ENERGY STORAGE MEANS FOR LAST GASP / IMPEDANCE LIMITED APPLICATIONS 审中-公开
标题翻译：能源储存手段用于最后的气体/阻燃有限公司的应用
公开(公告)号：US20130200815A1
公开(公告)日：2013-08-08
申请号：US13366567
申请日：2012-02-06
申请人： David Schie
发明人： David Schie
IPC分类号： G05F3/08 , H05B37/02
CPC分类号： G05F3/08 , H05B37/02 , H05B41/32
摘要： A voltage converter is coupled to an input voltage for boosting the voltage to a much higher level so as to take advantage of smaller capacitors due to the quadratic energy equation ½*CV̂2. The voltage converter has at least one boost converter having an inductive element coupled to the input voltage. A high voltage storage element is coupled to the inductive element. A switching circuit of the at least one boost converter transfers stored electrical energy in the inductive element to said storage element. The switching circuit allows for the combining of the stored electric energy of the storage element with the input voltage to illuminate a flash element, or provide an increased amount of current temporarily to the input for applications such as last gasp.
摘要翻译：电压转换器耦合到输入电压，以将电压升高到更高的电平，以便由于二次能量方程式½* CV2而利用较小的电容器。电压转换器具有至少一个具有耦合到输入电压的感应元件的升压转换器。高电压存储元件耦合到电感元件。所述至少一个升压转换器的开关电路将所述电感元件中的存储电能转移到所述存储元件。开关电路允许存储元件的存储的电能与输入电压的组合以照亮闪光元件，或者临时地向输入端提供增加的电流量以用于诸如最后的气泡的应用。

8. 发明申请

US20110316519A1 Load Switch 有权
标题翻译：负载开关
公开(公告)号：US20110316519A1
公开(公告)日：2011-12-29
申请号：US12823829
申请日：2010-06-25
申请人： David Schie
发明人： David Schie
IPC分类号： H02M3/156
CPC分类号： H03K17/166
摘要： A semiconductor device, circuit, and AC and DC load switch for maintaining a small input-output differential voltage and providing a defined response. The load switch can include a pass element coupled to an input terminal and an output terminal. The pass element can include a control terminal, with the control terminal controlling a response of the pass element. The load switch can include a first loop coupled to the control terminal configured to control a voltage drop between the input terminal and the output terminal while maintaining high impedance with the pass element. The load switch can include a second loop coupled to the control terminal configured to provide a defined filter response from the input terminal. The defined response can be a low pass response, high pass response, or a band pass response. The passband and/or stopband of the response can be programmed.
摘要翻译：半导体器件，电路，以及用于保持小的输入 - 输出差分电压并提供定义的响应的AC和DC负载开关。负载开关可以包括耦合到输入端子和输出端子的通过元件。通过元件可以包括控制端子，控制端子控制通过元件的响应。负载开关可以包括耦合到控制端子的第一回路，其被配置为控制输入端子和输出端子之间的电压降，同时保持与通过元件的高阻抗。负载开关可以包括耦合到控制终端的第二环路，其被配置为从输入端子提供定义的滤波器响应。所定义的响应可以是低通响应，高通响应或带通响应。可以编程响应的通带和/或阻带。

9. 发明授权

US5656925A Pulse switching tandem flyback voltage converter 失效
标题翻译：脉冲开关串联反激式电压转换器
公开(公告)号：US5656925A
公开(公告)日：1997-08-12
申请号：US731938
申请日：1996-10-18
申请人： David Schie , James A. Rekowski
发明人： David Schie , James A. Rekowski
IPC分类号： G08B5/36 , H02J9/06 , H02M3/335 , G05F1/613
CPC分类号： G08B7/062 , H02J9/061 , H02M3/335 , H02M2001/0006
摘要： The power supply converts a high wide ranging AC or DC voltage into a low regulated output voltage. Input rectifiers and filters are provided to rectify and filter the AC and to pass the DC voltage. An integrated switching circuit converts the filtered DC voltage into brief pulses whose duty cycle is varied by a first regulator as an inverse function of the filtered DC voltage. The pulses are employed to produce a DC output voltage by a tandem flyback circuit connected to the filtered DC voltage and comprising an electronic switch connected in series with a first inductor across the filtered voltage and having a gate supplied with the pulses, a capacitor and a first diode connected in series across the first inductor for receiving the discharge thereof, a second inductor and a second diode connected in series with the electronic switch and the capacitor whereby the capacitor is discharged through the second inductor, and output rectifier and a filter connected across the second inductor to produce a filtered DC output, a secondary winding coupled to the second inductor and connected through a rectifier and a filter to supply DC operating voltage to the integrated switching circuit during normal operation, and a diode and a resister connected between the filtered high voltage DC and the integrated switching circuit to supply operating power thereto during start-up.
摘要翻译：电源将高范围的交流或直流电压转换成低调节输出电压。提供输入整流器和滤波器来对AC进行整流和滤波，并通过直流电压。集成开关电路将滤波的直流电压转换为短脉冲，其占空比由第一调节器变化，作为滤波的直流电压的反函数。脉冲用于通过连接到滤波的直流电压的串联反激式电路产生直流输出电压，并且包括与滤波电压相连的与第一电感器串联的电子开关，并且具有提供脉冲的栅极，电容器和第一二极管串联连接在第一电感器上用于接收其放电;第二电感器和第二二极管，其与电子开关和电容器串联连接，由此电容器通过第二电感器放电，并且输出整流器和跨过第二电感器产生经滤波的直流输出，次级绕组耦合到第二电感器并通过整流器和滤波器连接，以在正常操作期间向集成开关电路提供直流工作电压，以及连接在滤波器之间的二极管和电抗器高压DC和集成开关电路，以在星期期间提供工作电源起来。

10. 发明申请

US20210326539A1 SINGLE TRANSISTOR MULTIPLIER AND METHOD THEREFOR 有权
公开(公告)号：US20210326539A1
公开(公告)日：2021-10-21
申请号：US17362376
申请日：2021-06-29
申请人： DAVID SCHIE , SERGEY GAITUKEVICH , PETER DRABOS , ANDREAS SIBRAI , ERIK SIBRAI
发明人： DAVID SCHIE , SERGEY GAITUKEVICH , PETER DRABOS , ANDREAS SIBRAI , ERIK SIBRAI
IPC分类号： G06G7/164 , H03F3/45 , G06N3/02
摘要： A multiplier has a MOSFET in a common source configuration. A MOSFET current source is coupled to a drain terminal of the MOSFET, An inverter has an input coupled to the drain terminal of the MOSFET. An output of the inverter gates two currents whose current magnitudes are proportional. A first capacitor has a first terminal coupled to a first of the two currents and a gate of the MOSFET and a second terminal grounded. A second capacitor has a first terminal coupled to a second of the two currents and a second terminal coupled to the first of the two currents. The multiplier is first reset by discharging a gate capacitance of the MOSFET and then allowing it to be recharged to a Vt comparator threshold after which a charge is removed from the gate terminal of the MOSFET reducing a voltage on the gate terminal below the Vt comparator threshold, causing the two currents to be enabled until the Vt comparator threshold reaches a previous Vt comparator threshold and the inverter turns off the two currents. In a next reset phase, the second capacitor holds a multiplied value of charge.

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