公开(公告)号：US09240729B2

公开(公告)日：2016-01-19

申请号：US12495770

申请日：2009-06-30

申请人： John F. Kenny ,  Joe E. Marriott ,  Katherine Mueller ,  Michael J. Benes ,  Daniel Miller

发明人： John F. Kenny ,  Joe E. Marriott ,  Katherine Mueller ,  Michael J. Benes ,  Daniel Miller

IPC分类号： H02M7/5383 ,  H02M3/337 ,  H02M7/48 ,  H02M1/12 ,  H02M7/5387 ,  H02M1/00

CPC分类号： H02M3/3376 ,  H02M2001/0058 ,  H02M2001/123 ,  H02M2007/4815 ,  H02M2007/53878 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

摘要： Embodiments are described for reducing common-mode current in electronic devices. In the various embodiments, a resonant converter is employed, for example in a power supply, and the resonant converter is driven by a DC input to generate an AC primary voltage on the primary windings of a power transformer. The DC input may be derived from an AC line voltage or a DC-to-DC converter. The AC primary voltage drives the primary winding of the transformer to generate an AC secondary voltage on at least one secondary winding of the transformer. The AC secondary voltage may then drive a rectifier, which in turn drives a low-pass filter to produce a DC output voltage. Phase-shift modulation is employed which, in conjunction with the resonant converter, applies a sinusoidal waveform to the primary of the transformer resulting in a reduced amount of common-mode current injected onto the secondary.

摘要翻译： 描述了用于降低电子设备中的共模电流的实施例。 在各种实施例中，例如在电源中采用谐振转换器，并且谐振转换器由DC输入驱动以在电力变压器的初级绕组上产生AC初级电压。 DC输入可以从AC线电压或DC-DC转换器导出。 交流一次电压驱动变压器的初级绕组，以在变压器的至少一个次级绕组上产生交流二次电压。 然后，交流二次电压可以驱动整流器，整流器又驱动低通滤波器以产生直流输出电压。 采用相移调制，其结合谐振转换器，将正弦波形施加到变压器的初级，导致注入次级的共模电流减少。

公开(公告)号：US20090115383A1

公开(公告)日：2009-05-07

申请号：US11935456

申请日：2007-11-06

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： G05F1/10 ,  G05F1/00

CPC分类号： G05F1/46 ,  G11C5/147 ,  G11C29/12 ,  G11C29/12005 ,  H02M2001/0045

摘要： A system for controlling mode crossover time in a power supply includes a power output element having a constant voltage control loop and a constant current control loop, the constant voltage control loop having a first error amplifier and the constant current control loop having a second error amplifier. An additional error amplifier is operatively coupled to a compensation capacitance associated with the second error amplifier, the additional error amplifier configured to cause the constant current control loop to provide an additional current to flow from the constant current control loop, thus causing the power output element to transition from a constant voltage mode to a constant current mode responsive to a programmed voltage value.

摘要翻译： 用于控制电源中的模式交叉时间的系统包括具有恒定电压控制回路和恒定电流控制回路的功率输出元件，所述恒压控制回路具有第一误差放大器，所述恒定电流控制回路具有第二误差放大器 。 额外的误差放大器可操作地耦合到与第二误差放大器相关联的补偿电容，附加误差放大器被配置为使得恒定电流控制环路从恒定电流控制环路提供额外的电流，从而导致功率输出元件 根据编程的电压值从恒定电压模式转换到恒定电流模式。

公开(公告)号：US06603301B2

公开(公告)日：2003-08-05

申请号：US09912351

申请日：2001-07-26

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： G01R1508

CPC分类号： G01R19/0092 ,  G01R15/09

摘要： A multi-range measuring circuit for measuring a flow of electrical current between a first node and a second node. A measurement resistor is connected to the first node to develop a voltage having a high range output. A summing node connected in series with the measurement resistor acts as an input to an amplifier for developing a second voltage having a low range output having a higher scale factor than the high range output. If the capacity of the amplifier to maintain the low range as a linear function is exceeded, a bypass circuit bypasses excess current flow to the second node.

摘要翻译： 一种用于测量第一节点和第二节点之间的电流的多范围测量电路。 测量电阻器连接到第一节点以产生具有高范围输出的电压。 与测量电阻串联连接的求和节点用作放大器的输入，用于开发具有比高范围输出更高比例因子的低范围输出的第二电压。 如果超过放大器维持低电平范围的容量，则旁路电路将过剩电流旁路到第二节点。

公开(公告)号：US06028420A

公开(公告)日：2000-02-22

申请号：US098759

申请日：1998-06-17

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： G05F1/569

CPC分类号： G05F1/569

摘要： A constant voltage power supply includes one or more sense leads connected to a load and in a feedback control loop. The voltage at the load is fed back via the sense leads for comparison to a reference voltage in the loop to generate an error signal that adjusts the voltage output of the power supply to achieve and maintain the voltage delivered to the load constant at a desired value. The power supply further includes a continuity checking circuit for checking continuity status of the sense leads while the power supply is in a disable mode wherein it is isolated from the load. This allows any detected discontinuity to be repaired before the supply is connected to a load. The detected discontinuity informs the user that the voltage delivered to the load will not be accurately controlled because of the broken or disconnected sense lead. Without the continuity checking circuit, the user would think that the voltage at the load is an accurate replica of the desired load voltage as represented by the reference voltage.

摘要翻译： 恒压电源包括连接到负载和反馈控制回路中的一个或多个感测引线。 负载处的电压通过感测引线反馈，以与环路中的参考电压进行比较，以产生一个误差信号，该误差信号调节电源的电压输出，以实现和维持输送到负载的电压恒定在所需值 。 电源还包括连续性检查电路，用于在电源处于与负载隔离的禁用模式时检查感测引线的连续性状态。 这允许在电源连接到负载之前修复任何检测到的不连续性。 检测到的不连续性通知用户由于断开或断开的感测引线，传输到负载的电压将不会被精确控制。 没有连续性检查电路，用户会认为负载电压是由参考电压表示的所需负载电压的精确复制品。

公开(公告)号：US08787047B2

公开(公告)日：2014-07-22

申请号：US11952276

申请日：2007-12-07

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： H02M7/79

CPC分类号： H02M3/33584 ,  H02M2001/0045

摘要： A system for dissipating energy in a power supply includes a bidirectional switching power output stage coupled to a primary power supply side and a secondary power supply side, the bi-directional switching power output stage configured to provide a positive voltage and a positive current, the bi-directional switching power output stage also configured to provide a positive voltage and to receive a current. The system for dissipating energy in a power supply also includes a current sinking circuit coupled to the primary power supply side, the current sinking circuit configured to dissipate energy when the secondary power supply side of the switching power supply is receiving current.

摘要翻译： 用于在电源中耗散能量的系统包括耦合到主电源侧和次电源侧的双向开关功率输出级，双向开关功率输出级被配置为提供正电压和正电流， 双向开关功率输出级还被配置为提供正电压并接收电流。 用于在电源中耗散能量的系统还包括耦合到主电源侧的电流吸收电路，该电流吸收电路被配置为当开关电源的次级电源侧接收电流时耗散能量。

公开(公告)号：US08461818B1

公开(公告)日：2013-06-11

申请号：US12689332

申请日：2010-01-19

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： G06F1/00

CPC分类号： H02M3/158 ,  H02M2001/0083 ,  H02M2001/348 ,  H02M2003/1566

摘要： A device for improving transient response of a power supply includes a diode connected in series with an output of the power supply and configured to provide a predetermined voltage drop to an output voltage of the power supply. The device further includes a source follower transistor connected in parallel with the diode and configured to be selectively activated to remove at least a portion of the predetermined voltage drop of the diode from the output voltage of the power supply during a transient period, in which an output current of the device is increasing.

摘要翻译： 用于改善电源的瞬态响应的装置包括与电源的输出串联的二极管，并被配置为向电源的输出电压提供预定的电压降。 该器件还包括与二极管并联连接的源极跟随器晶体管，并被配置成在瞬态期间被选择性地激活以将二极管的预定电压降的至少一部分从电源的输出电压中去除，其中 器件的输出电流正在增加。

公开(公告)号：US20090146626A1

公开(公告)日：2009-06-11

申请号：US11952276

申请日：2007-12-07

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： G05F1/44

CPC分类号： H02M3/33584 ,  H02M2001/0045

摘要： A system for dissipating energy in a power supply includes a bidirectional switching power output stage coupled to a primary power supply side and a secondary power supply side, the bi-directional switching power output stage configured to provide a positive voltage and a positive current, the bi-directional switching power output stage also configured to provide a positive voltage and to receive a current. The system for dissipating energy in a power supply also includes a current sinking circuit coupled to the primary power supply side, the current sinking circuit configured to dissipate energy when the secondary power supply side of the switching power supply is receiving current.

摘要翻译： 用于在电源中耗散能量的系统包括耦合到主电源侧和次电源侧的双向开关功率输出级，双向开关功率输出级被配置为提供正电压和正电流， 双向开关功率输出级还被配置为提供正电压并接收电流。 用于在电源中耗散能量的系统还包括耦合到主电源侧的电流吸收电路，该电流吸收电路被配置为当开关电源的次级电源侧接收电流时耗散能量。

公开(公告)号：US06075351A

公开(公告)日：2000-06-13

申请号：US128703

申请日：1998-08-04

申请人： Michael J. Benes

发明人： Michael J. Benes

IPC分类号： G05F1/56 ,  G05F1/44 ,  H03G3/00

CPC分类号： G05F1/56

摘要： A voltage control system that provides an output voltage of constant value to a load. The control system includes voltage supply means for providing the output voltage to the load. A feedback circuit supplies a feedback current. A summing circuit algebraically sums the feedback current and a reference current to provide an error signal that changes as the feedback current changes. These changes affect the amplitude of the output voltage delivered to the load. The error signal is processed by a voltage adjustment means including an error amplifier that amplifies the error signal for use in making an adjustment to the output voltage so as to maintain its constant value. A gain increasing means responds to transient changes in output voltage to momentarily increase the error amplifier gain to shorten system recovery time to constant output voltage.

摘要翻译： 电压控制系统，为负载提供恒定值的输出电压。 控制系统包括用于向负载提供输出电压的电压供给装置。 反馈电路提供反馈电流。 求和电路代表性地将反馈电流和参考电流相加，以提供随反馈电流变化而改变的误差信号。 这些变化影响输送到负载的输出电压的幅度。 误差信号由包括误差放大器的电压调节装置处理，误差放大器放大误差信号，用于对输出电压进行调整，以保持其恒定值。 增益装置响应于输出电压的瞬态变化，以瞬时增加误差放大器增益，以将系统恢复时间缩短到恒定的输出电压。

公开(公告)号：US20100328974A1

公开(公告)日：2010-12-30

申请号：US12495770

申请日：2009-06-30

申请人： John F. Kenny ,  Joe E. Marriott ,  Katherine Mueller ,  Michael J. Benes ,  Daniel Miller

发明人： John F. Kenny ,  Joe E. Marriott ,  Katherine Mueller ,  Michael J. Benes ,  Daniel Miller

IPC分类号： H02M7/06

CPC分类号： H02M3/3376 ,  H02M2001/0058 ,  H02M2001/123 ,  H02M2007/4815 ,  H02M2007/53878 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

摘要： Embodiments are described for reducing common-mode current in electronic devices. In the various embodiments, a resonant converter is employed, for example in a power supply, and the resonant converter is driven by a DC input to generate an AC primary voltage on the primary windings of a power transformer. The DC input may be derived from an AC line voltage or a DC-to-DC converter. The AC primary voltage drives the primary winding of the transformer to generate an AC secondary voltage on at least one secondary winding of the transformer. The AC secondary voltage may then drive a rectifier, which in turn drives a low-pass filter to produce a DC output voltage. Phase-shift modulation is employed which, in conjunction with the resonant converter, applies a sinusoidal waveform to the primary of the transformer resulting in a reduced amount of common-mode current injected onto the secondary.

摘要翻译： 描述了用于降低电子设备中的共模电流的实施例。 在各种实施例中，例如在电源中使用谐振转换器，并且谐振转换器由DC输入驱动以在电力变压器的初级绕组上产生AC初级电压。 DC输入可以从AC线电压或DC-DC转换器导出。 交流一次电压驱动变压器的初级绕组，以在变压器的至少一个次级绕组上产生交流二次电压。 然后，交流二次电压可以驱动整流器，整流器又驱动低通滤波器以产生直流输出电压。 采用相移调制，其结合谐振转换器，将正弦波形施加到变压器的初级，导致注入次级的共模电流减少。