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1. 发明授权

US07847637B2 High efficiency precision amplifier 有权
标题翻译：高效精密放大器
公开(公告)号：US07847637B2
公开(公告)日：2010-12-07
申请号：US12491081
申请日：2009-06-24
申请人： Juergen Metzger , Mikhail V. Ivanov , Vadim V. Ivanov , Viola Schaffer
发明人： Juergen Metzger , Mikhail V. Ivanov , Vadim V. Ivanov , Viola Schaffer
IPC分类号： H03F3/04
CPC分类号： H03F3/217
摘要： A high efficiency precision amplifier which comprises a linear amplifier stage, a class D amplifier stage and a set of switches is provided. Both amplifier stages receive the same input signal. The load is driven by the output of the linear amplifier stage. The set of switches connect the output of the class D amplifier stage to either of the positive and negative supply terminals of the linear amplifier stage and the other of the positive and negative supply terminals of the linear amplifier stage to a negative or positive supply, depending on the polarity of the signal being amplified.
摘要翻译：提供了一种高效率精密放大器，其包括线性放大器级，D类放大器级和一组开关。两个放大器级都接收相同的输入信号。负载由线性放大器级的输出驱动。该组开关将D类放大器级的输出端与线性放大器级的正极和负极电源端子以及线性放大器级的正极和负极电源端子中的任一端连接到负电源或正电源，这取决于关于被放大信号的极性。

2. 发明申请

US20100019844A1 HIGH EFFICIENCY PRECISION AMPLIFIER 有权
标题翻译：高效率精密放大器
公开(公告)号：US20100019844A1
公开(公告)日：2010-01-28
申请号：US12491081
申请日：2009-06-24
申请人： Juergen Metzger , Mikhail V. Ivanov , Vadim V. Ivanov , Viola Schaffer
发明人： Juergen Metzger , Mikhail V. Ivanov , Vadim V. Ivanov , Viola Schaffer
IPC分类号： H03G3/20
CPC分类号： H03F3/217
摘要： A high efficiency precision amplifier which comprises a linear amplifier stage, a class D amplifier stage and a set of switches is provided. Both amplifier stages receive the same input signal. The load is driven by the output of the linear amplifier stage. The set of switches connect the output of the class D amplifier stage to either of the positive and negative supply terminals of the linear amplifier stage and the other of the positive and negative supply terminals of the linear amplifier stage to a negative or positive supply, depending on the polarity of the signal being amplified.
摘要翻译：提供了一种高效率精密放大器，其包括线性放大器级，D类放大器级和一组开关。两个放大器级都接收相同的输入信号。负载由线性放大器级的输出驱动。该组开关将D类放大器级的输出端与线性放大器级的正极和负极电源端子以及线性放大器级的正极和负极电源端子中的任一端连接到负电源或正电源，这取决于关于被放大信号的极性。

3. 发明授权

US08674663B2 Converter and method for extracting maximum power from piezo vibration harvester 有权
标题翻译：用于从压电振动收割机中提取最大功率的转换器和方法
公开(公告)号：US08674663B2
公开(公告)日：2014-03-18
申请号：US12661578
申请日：2010-03-19
申请人： Vadim V. Ivanov
发明人： Vadim V. Ivanov
IPC分类号： H02J7/00 , H02J7/04
CPC分类号： H02J7/007 , H02J7/04 , H02M7/219 , H02M2001/007 , H02M2007/2195 , H02N2/181 , Y02B70/1408
摘要： A system (1-2) for efficiently transferring harvested vibration energy to a battery (6) includes a piezo harvester (2) generating an AC output voltage (VP(t)) and current (IPZ(t)) and an active rectifier (3) to produce a harvested DC voltage (Vhrv) and current (Ihrv) which charge a capacitance (C0). An enable circuit (17) causes a DC-DC converter (4) to be enabled, thereby discharging the capacitance into the converter, when a comparator (A0,A1) of the rectifier which controls switches (S1-S4) thereof detects a direction reversal of the AC output current (IPZ(t)). Another comparator (13) causes the enable circuit (17) to disable the converter (4) when the DC voltage exceeds a threshold (VREF), thereby causing the capacitance be recharged.
摘要翻译：用于将收获的振动能量有效地传送到电池（6）的系统（1-2）包括产生AC输出电压（VP（t））和电流（IPZ（t））的压电式收集器（2）和有源整流器 3）以产生对电容（C0）充电的收获的DC电压（Vhrv）和电流（Ihrv）。当控制开关（S1-S4）的整流器的比较器（A0，A1）检测到方向（S1-S4）时，使能电路（17）使DC-DC转换器（4）使能，从而将电容放电到转换器中交流输出电流（IPZ（t））的反转。当DC电压超过阈值（VREF）时，另一比较器（13）使得使能电路（17）禁用转换器（4），从而使电容被再充电。

4. 发明申请

US20120206210A1 CIRCUITRY AND METHOD FOR PRECISION AMPLITUDE CONTROL IN QUARTZ AND MEMS OSCILLATORS 有权
标题翻译：用于精确振幅控制的电路和方法在QUARTZ和MEMS振荡器中
公开(公告)号：US20120206210A1
公开(公告)日：2012-08-16
申请号：US12931940
申请日：2011-02-15
申请人： Vadim V. Ivanov , Michael J. Shay
发明人： Vadim V. Ivanov , Michael J. Shay
IPC分类号： H03B5/02
CPC分类号： H03B5/364 , G04F5/06 , G04G3/02
摘要： An oscillator includes oscillator circuitry (8) including a transconductance stage (2) and a resonator (3). A comparator (10) produces first (CLK) and second (/CLK) clock signals which indicate the timing of positive and negative phases of a differential output signal (VIN+−VIN−) produced by the transconductance circuit in response to the resonator. A synchronous rectifier (14) converts the differential output signal to a current (IRECT) in response to the first and second clock signals. A switched capacitor notch filter (15) filters the current in response to the first and second clock signals. A control current (ICONTROL) which controls the transconductance of the transconductance circuit is generated in response to the notch filter. The resonator may be a MEMS resonator.
摘要翻译：振荡器包括包括跨导级（2）和谐振器（3）的振荡器电路（8）。比较器（10）产生第一（CLK）和第二（/ CLK）时钟信号，其指示由跨导电路响应谐振器产生的差分输出信号（VIN + -VIN-）的正和负相位的时序。同步整流器（14）响应于第一和第二时钟信号将差分输出信号转换为电流（IRECT）。开关电容器陷波滤波器（15）响应于第一和第二时钟信号对电流进行滤波。响应于陷波滤波器产生控制跨导电路跨导的控制电流（ICONTROL）。谐振器可以是MEMS谐振器。

5. 发明授权

US08222881B2 Low-power feedback and method for DC-DC converters and voltage regulators for energy harvesters 有权
标题翻译：用于能量收集器的DC-DC转换器和电压调节器的低功率反馈和方法
公开(公告)号：US08222881B2
公开(公告)日：2012-07-17
申请号：US12657543
申请日：2010-01-22
申请人： Vadim V. Ivanov , Timothy V. Kaithoff
发明人： Vadim V. Ivanov , Timothy V. Kaithoff
IPC分类号： G05F1/00
CPC分类号： G05F1/56 , G05F1/575
摘要： A converter (10) for converting a first DC voltage (VDD) to a second DC voltage (VOUT) includes an output stage (40) for producing the second DC voltage (VOUT) in response to both the first DC voltage (VDD) and an output of an error amplifier (20). A sampling circuit (15) periodically energizes a voltage divider (R0,R1) by periodically coupling a first terminal thereof to the second DC voltage and periodically coupling an output (14) of the energized voltage divider to a feedback conductor (7) to refresh a feed back capacitor (C0) coupled between the second DC voltage and the feedback conductor. The feedback conductor is coupled to an input of the error amplifier.
摘要翻译：用于将第一直流电压（VDD）转换为第二直流电压（VOUT）的A转换器（10）包括用于响应于第一直流电压（VDD）和第二直流电压（VDD）两者产生第二直流电压（VOUT）的输出级（40）误差放大器（20）的输出。采样电路（15）通过将其第一端周期性地耦合到第二DC电压并周期性地耦合到通电分压器的输出（14）到反馈导体（7）来周期性地激励分压器（R0，R1），以刷新耦合在第二DC电压和反馈导体之间的反馈电容器（C0）。反馈导体耦合到误差放大器的输入端。

6. 发明申请

US20110221416A1 Battery charger and method for collecting maximum power from energy harvester circuit 有权
标题翻译：电池充电器和收集能量采集电路最大功率的方法
公开(公告)号：US20110221416A1
公开(公告)日：2011-09-15
申请号：US12661005
申请日：2010-03-09
申请人： Vadim V. Ivanov , Christian Link
发明人： Vadim V. Ivanov , Christian Link
IPC分类号： G05F1/70
CPC分类号： G05F1/67 , H02J7/35 , Y02E10/58
摘要： An energy harvesting system for transferring energy from an energy harvester (2) having an output impedance (Zi) to a DC-DC converter (10) includes a maximum power point tracking (MPPT) circuit (12) including a replica impedance (ZR) which is a multiple (N) of the output impedance. The MPPT circuit applies a voltage across the replica impedance that is equal to an output voltage (Vin) of the harvester to generate a feedback current (IZR) which is equal to an input current (Iin) received from the harvester, divided by the multiple (N), to provide maximum power point tracking between the harvester and the converter.
摘要翻译：用于将具有输出阻抗（Zi）的能量收集器（2）的能量传送到DC-DC转换器（10）的能量收集系统包括：包括复制阻抗（ZR）的最大功率点跟踪（MPPT）电路（12）这是输出阻抗的倍数（N）。 MPPT电路跨复制阻抗施加电压，该电压等于收割机的输出电压（Vin），以产生等于从收割机接收的输入电流（Iin）的反馈电流（IZR）除以多个（N），以在收割机和转换器之间提供最大功率点跟踪。

7. 发明申请

US20090322429A1 Variable gain current input amplifier and method 有权
标题翻译：可变增益电流输入放大器及方法
公开(公告)号：US20090322429A1
公开(公告)日：2009-12-31
申请号：US12215186
申请日：2008-06-25
申请人： Vadim V. Ivanov , Keith E. Kunz , Sachin Rao Bandigadi , Prasadu Naga Venkata Mangina
发明人： Vadim V. Ivanov , Keith E. Kunz , Sachin Rao Bandigadi , Prasadu Naga Venkata Mangina
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45179 , H03F2203/45674
摘要： Variable gain circuitry includes a first input transistor (M1) having a source coupled to a first conductor (32), a gate coupled to a first input voltage (Vin+), and a drain coupled to a second conductor (30). An input of a first current mirror (M3,M4) is coupled to the second conductor to receive a current corresponding to the difference between the first input voltage and a second input voltage (Vin−). An output of the first current mirror is coupled to a source of current (M2). A first transistor (M5) has a gate coupled to a third conductor (31), a source coupled to a reference voltage (VSS), and a drain coupled to conduct output current (Iout). A second transistor (M6) and a resistive element (M7) are coupled in series between the third conductor and the first reference voltage (VSS), a gate of the second transistor being coupled to the third conductor to produce a nonlinear relationship between currents of the first transistor and the second transistor.
摘要翻译：可变增益电路包括具有耦合到第一导体（32）的源极的第一输入晶体管（M1），耦合到第一输入电压（Vin +）的栅极和耦合到第二导体（30）的漏极。第一电流镜（M3，M4）的输入耦合到第二导体，以接收对应于第一输入电压和第二输入电压（Vin-）之间的差的电流。第一电流镜的输出耦合到电流源（M2）。第一晶体管（M5）具有耦合到第三导体（31）的栅极，耦合到参考电压（VSS）的源极和耦合以导通输出电流（Iout）的漏极。第二晶体管（M6）和电阻元件（M7）串联耦合在第三导体和第一参考电压（VSS）之间，第二晶体管的栅极耦合到第三导体，以产生电流之间的非线性关系第一晶体管和第二晶体管。

8. 发明授权

US07411453B1 Tail-current steering circuit and method for rail-to-rail operational amplifier input stage 有权
标题翻译：尾电流转向电路及轨至轨运算放大器输入级的方法
公开(公告)号：US07411453B1
公开(公告)日：2008-08-12
申请号：US11655524
申请日：2007-01-19
申请人： Vadim V. Ivanov , David R. W. Spady
发明人： Vadim V. Ivanov , David R. W. Spady
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F3/4565 , H03F2200/456 , H03F2203/45466 , H03F2203/45476
摘要： An amplifier includes first and second pairs of differentially coupled input transistors. The first current mirror generates a reference current which is mirrored by a second current mirror to produce a mirrored reference current. Current steering circuitry steers the mirrored reference current as a first tail current through the first pair when a common mode voltage associated with a differential input voltage exceeds a first reference voltage. A first portion of the mirrored reference current flows from the first current steering circuitry when the common mode voltage is greater than the first reference voltage to produce a second tail current for the second pair. A second portion of the mirrored reference current is fed back to an output of the first current mirror and summed with the reference current so as to reduce the second portion when the common mode voltage is greater than the first reference voltage.
摘要翻译：放大器包括第一对和第二对差分耦合输入晶体管。第一个当前镜像产生参考电流，该参考电流由第二个电流镜反射以产生镜像参考电流。当与差分输入电压相关联的共模电压超过第一参考电压时，电流转向电路将经镜像参考电流引导为通过第一对的第一尾电流。当共模电压大于第一参考电压时，镜像参考电流的第一部分从第一电流控制电路流动，以产生第二对的第二尾电流。镜像参考电流的第二部分被反馈到第一电流镜的输出并与参考电流相加，以便当共模电压大于第一参考电压时减小第二部分。

9. 发明授权

US07088182B2 Class AB output stage circuit with stable quiescent current 有权
标题翻译： AB类输出级电路具有稳定的静态电流
公开(公告)号：US07088182B2
公开(公告)日：2006-08-08
申请号：US10819424
申请日：2004-04-07
申请人： Vadim V. Ivanov
发明人： Vadim V. Ivanov
IPC分类号： H03F3/26
CPC分类号： H03F3/347 , H03F3/21 , H03F3/3022
摘要： A class-AB output stage circuit is configured with controllable reference voltages for providing stable quiescent current. An exemplary output stage circuit comprises one or more control circuits, such as feedback loops, configured to control and/or adjust the reference voltages within the class-AB circuit based on the output voltage and/or supply rail voltage levels. In addition, an exemplary output stage circuit can also comprise one or more clamp circuits configured to facilitate operation of the output stage circuit when the output supply is proximate to or exceeds a positive or a negative supply rail.
摘要翻译： AB类输出级电路配置有可控的参考电压，用于提供稳定的静态电流。示例性输出级电路包括一个或多个控制电路，例如反馈回路，其被配置为基于输出电压和/或电源电压电平来控制和/或调整AB类电路内的参考电压。此外，示例性输出级电路还可以包括一个或多个钳位电路，其被配置为当输出电源接近或超过正或负电源轨时便于输出级电路的操作。

10. 发明授权

US06825721B2 Amplifier gain boost circuitry and method 有权
公开(公告)号：US06825721B2
公开(公告)日：2004-11-30
申请号：US10193871
申请日：2002-07-12
申请人： Stephen J. Sanchez , Vadim V. Ivanov , Walter B. Meinel
发明人： Stephen J. Sanchez , Vadim V. Ivanov , Walter B. Meinel
IPC分类号： H03F345
CPC分类号： H03F3/45192 , H03F2203/45028 , H03F2203/45301 , H03F2203/45302 , H03F2203/45682
摘要： A gain boost circuit is provided in a differential amplifier including differentially connected first and second input transistors the drains of which are coupled to sources of first and second cascode transistors. A third cascode transistor has a source coupled to a drain of the first cascode transistor and a drain coupled to a bias current source. A gain boost amplifier has an output coupled to the gate of the third cascode transistor, a first input coupled to the drain of the first cascode transistor, and a second input coupled to the drain of the second cascode transistor.

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