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公开(公告)号：US07626369B2
公开(公告)日：2009-12-01
申请号：US10572981
申请日：2004-09-16
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： A load line regulated switched-mode power converter supplies an output voltage and an output current to a load. The power converter includes an inductor, a switch coupled to the inductor, a first impedance, a second impedance, and a power converter controller. The power converter controller includes a first sense circuit to obtain momentary information on a first current which flows through the first impedance, and which is related to the output current. A difference between a zero load voltage and the output voltage is determined to obtain a difference level. A second sense circuit supplies further information on a second current which flows through the second impedance, and which is related to the first current. An integrator integrates a difference between the further information and the difference level to obtain a correction signal. A switch controller receives the difference level, the momentary information and the correction signal to control the switch to obtain a substantially zero correction signal in a steady state.
摘要翻译： 负载线路稳压开关电源转换器向负载提供输出电压和输出电流。 功率转换器包括电感器，耦合到电感器的开关，第一阻抗，第二阻抗和功率转换器控制器。 功率转换器控制器包括第一感测电路，以获得流过第一阻抗的第一电流的瞬时信息，并且与输出电流相关。 确定零负载电压和输出电压之间的差异以获得差值。 第二感测电路提供关于流过第二阻抗的第二电流并且与第一电流相关的进一步信息。 积分器将进一步的信息和差分电平之间的差集成，以获得校正信号。 开关控制器接收差分电平，瞬时信息和校正信号以控制开关以在稳定状态下获得基本为零的校正信号。
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公开(公告)号：US07239118B2
公开(公告)日：2007-07-03
申请号：US10518826
申请日：2003-06-12
IPC分类号： G05F1/40
CPC分类号： H02M3/156
摘要： A DC-DC converter includes a switch (S1) which periodically connects an inductor (L) to a DC-input voltage (Vi) during an on-period (Ton) of a period time (Tp). The operating frequency (fo) of the DC-DC converter is the inverse of the period time (Tp). An output (O1) of the DC-DC converter is coupled to the inductor (L) to supply an output voltage (Vo). A controller (CO) controls the operating frequency (fo) of the DC-DC converter to be substantially proportional to the output voltage (Vo) to obtain a substantially constant average duration of the on-period (Ton) as function of the output voltage (Vo).
摘要翻译： DC-DC转换器包括在周期时间（Tp）的接通周期（Ton）期间周期性地将电感器（L）连接到DC输入电压（Vi）的开关（S1）。 DC-DC转换器的工作频率（fo）是周期时间（Tp）的倒数。 DC-DC转换器的输出（O 1）耦合到电感器（L）以提供输出电压（Vo）。 控制器（CO）控制DC-DC转换器的工作频率（fo）与输出电压（Vo）基本成比例，以获得作为输出电压函数的导通周期（Ton）的基本恒定的平均持续时间 （Vo）。
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公开(公告)号：US07391627B2
公开(公告)日：2008-06-24
申请号：US10516725
申请日：2003-05-21
IPC分类号： H02M3/335
CPC分类号： H02M3/156
摘要： A power converter comprises an inductor (LP) and a controllable switch (CF) coupled to the inductor. A switch controller (1) supplies a periodic switching signal (VC1) which has a repetition time and a duty cycle to the controllable switch (CF) to generate a periodical inductor current (IL) through the inductor. A generator (2) generates an emulated signal (IE) based on timing information (TI) which represents the repetition time and the duty cycle to emulate a current signal being representative of the inductor current. A comparator (3) compares the emulated signal (IE) with the current signal (CS) to obtain an error signal (E). A generator controller (4) receives the error signal (E) to supply a control signal (VD) to the generator (2) to adapt a property of the emulated signal (IE) to become substantially equal to a property of the current signal (CS).
摘要翻译： 功率转换器包括耦合到电感器的电感器（LP）和可控开关（CF）。 开关控制器（1）将具有重复时间和占空比的周期性切换信号（VC 1）提供给可控开关（CF），以通过电感器产生周期性电感器电流（IL）。 发生器（2）基于表示重复时间和占空比的定时信息（TI）产生仿真信号（IE），以模拟表示电感器电流的当前信号。 比较器（3）将仿真信号（IE）与当前信号（CS）进行比较以获得误差信号（E）。 发电机控制器（4）接收误差信号（E）以将控制信号（VD）提供给发电机（2），以使仿真信号（IE）的性质变得基本上等于当前信号的特性（ CS）。
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公开(公告)号：US20080130334A1
公开(公告)日：2008-06-05
申请号：US10561580
申请日：2004-06-16
CPC分类号： H02M3/33507 , H02M3/1588 , H02M3/33561 , H02M2001/0009 , Y02B70/1466
摘要： There is provided a switching circuit (50) comprising: a transformer (TR1) including at least one winding (P1, S1, S2); a switching device (FET1) coupled between a source of power (60) and the transformer (TR), the switching device (FETI) being coupled to a driving circuits (100) for periodically driving the switching devices (FET1) into conduction to transfer power from the source (60) to the inductive component (TRi). The circuit (50) further includes: a first monitoring arrangement (115) for determining a measure of a magnetizing current present in the transformer (TR1); a second monitoring arrangement for deriving a measure of hard switching occurring in the switching devices (FETI); and a signal processing arrangement (140, 150, 160, 170, 175) for generating a measure of reflected power being transferred through the transformer (TRI) from the measure of the magnetizing current and the measure of hard switching.
摘要翻译： 提供一种开关电路（50），包括：包括至少一个绕组（P 1，S 1，S 2）的变压器（TR 1）; 耦合在电源（60）和变压器（TR）之间的开关装置（FET1），所述开关装置（FETI）耦合到驱动电路（100），用于周期性地驱动开关装置（FET1）导通 以将功率从源（60）传送到电感分量（TRi）。 电路（50）还包括：用于确定存在于变压器（TR 1）中的磁化电流的量度的第一监视装置（115）; 用于导出在开关装置（FETI）中发生的硬切换的测量的第二监视装置; 以及信号处理装置（140,150,160,170,175），用于从所述磁化电流的测量和所述硬切换的测量值产生通过所述变压器（TRI）传送的反射功率的量度。
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公开(公告)号：US07417876B2
公开(公告)日：2008-08-26
申请号：US10561580
申请日：2004-06-16
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/1588 , H02M3/33561 , H02M2001/0009 , Y02B70/1466
摘要： There is provided a switching circuit (50) comprising: a transformer (TR1) including at least one winding (P1, S1, S2); a switching device (FET1) coupled between a source of power (60) and the transformer (TR), the switching device (FETI) being coupled to a driving circuits (100) for periodically driving the switching devices (FET1) into conduction to transfer power from the source (60) to the inductive component (TRi). The circuit (50) further includes: a first monitoring arrangement (115) for determining a measure of a magnetizing current present in the transformer (TR1); a second monitoring arrangement for deriving a measure of hard switching occurring in the switching devices (FETI); and a signal processing arrangement (140, 150, 160, 170, 175) for generating a measure of reflected power being transferred through the transformer (TRI) from the measure of the magnetizing current and the measure of hard switching.
摘要翻译： 提供一种开关电路（50），包括：包括至少一个绕组（P 1，S 1，S 2）的变压器（TR 1）; 耦合在电源（60）和变压器（TR）之间的开关装置（FET1），所述开关装置（FETI）耦合到驱动电路（100），用于周期性地驱动开关装置（FET1）导通 以将功率从源（60）传送到电感分量（TRi）。 电路（50）还包括：用于确定存在于变压器（TR 1）中的磁化电流的量度的第一监视装置（115）; 用于导出在开关装置（FETI）中发生的硬切换的测量的第二监视装置; 以及信号处理装置（140,150,160,170,175），用于从所述磁化电流的测量和所述硬切换的测量值产生通过所述变压器（TRI）传送的反射功率的量度。
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公开(公告)号：US06504352B2
公开(公告)日：2003-01-07
申请号：US09828064
申请日：2001-04-06
IPC分类号： G05F304
摘要： Current source comprising a MOS transistor (T1) having a first terminal (D) connected to a high voltage input (HV), a second terminal (S) providing an output current (Iout) to a current output terminal (Q), and a gate, the current source further including a bias unit (T2) connected to the high voltage input (HV) for generating a small bias current for the gate (G), the gate (G) further being connected to an output (Q1) of a voltage comparator (A1) for comparing a sensed voltage (Vsense) caused by the output current (Iout) over a voltage sensor means (Rsense) with a reference voltage and providing at said comparator output (Q1) a regulation voltage for the gate (G) based on the difference between the sensed voltage and the reference voltage, wherein the bias unit (T2) includes a transistor (T2) having a gate electrode (g) which is coupled to one of the nodes of the voltage sensor (Rsense).
摘要翻译： 电流源包括具有连接到高电压输入（HV）的第一端子（D）的MOS晶体管（T1），向电流输出端子（Q）提供输出电流（Iout）的第二端子（S） 电流源还包括连接到高压输入（HV）的偏置单元（T2），用于产生用于栅极（G）的小的偏置电流，栅极（G）还连接到 电压比较器（A1），用于将由电压传感器装置（Rsense）上的输出电流（Iout）引起的感测电压（Vsense）与参考电压进行比较，并在所述比较器输出（Q1）处提供用于门的调节电压（ G）基于感测电压和参考电压之间的差异，其中偏置单元（T2）包括具有耦合到电压传感器（Rsense）的一个节点的栅电极（g）的晶体管（T2） 。
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公开(公告)号：US07397229B2
公开(公告)日：2008-07-08
申请号：US10561310
申请日：2004-06-16
IPC分类号： G05F1/00
CPC分类号： H02M3/33576 , H02M3/33561
摘要： There is provided a switch mode power supply circuit including at least one inductive component coupled to an associated switching device for cyclically connecting the inductive component to a source of power. The circuit includes a signal output representative of a voltage at a junction of the at least one inductive component to the switching device. The circuit further comprises a hard switching amplitude detector for deriving a measure of hard switching amplitude occurring in operation in the switching device the detector including a signal processing path for receiving the signal output and generating the measure of hard switching amplitude therefrom. The signal path includes: a signal differentiator for imperfectly differentiating the signal output to generate a corresponding imperfectly differentiated signal; and a signal integrator for integrating the imperfectly differentiated signal in a temporally-gated manner for generating the measure of hard switching.
摘要翻译： 提供了一种开关模式电源电路，其包括耦合到相关联的开关装置的至少一个感应元件，用于将电感元件循环地连接到电源。 该电路包括代表至少一个感应元件与开关器件的接点处的电压的信号输出。 该电路还包括硬开关振幅检测器，用于导出在开关装置中操作中发生的硬开关幅度的测量值，该检测器包括用于接收信号输出的信号处理路径，并从其产生硬切换振幅的量度。 信号路径包括：信号微分器，用于不完全区分信号输出以产生相应的不完全微分信号; 以及信号积分器，用于以时间选通的方式对不完全微分信号进行积分，以产生硬切换的测量。
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公开(公告)号：US07042203B2
公开(公告)日：2006-05-09
申请号：US10516148
申请日：2003-05-27
IPC分类号： G05F1/56
CPC分类号： H02M3/156
摘要： A DC—DC converter with an inductor (L) and a switch (S1, S2) comprises an averaging circuit (2) which generates an average correction signal (ACS) representative for the difference of the peak current (IPEAK) and the actual average current (IAVE) through the inductor (L). A controller (2, 3, 4) controls the output voltage (VOUT) of the DC—DC converter based on regulating the duty-cycle of the switch (S1, S2) dependent on a sense signal (SES) passing a reference current level (RPCS), as in prior art peak current or valley current controlled DC—DC converters, but now using a reference current level (RPCS) that is also based on the average correction signal (ACS) and not only on the output voltage (VOUT). This enables the converter to control the output voltage (VOUT) more precisely.
摘要翻译： 具有电感器（L）和开关（S1，S2）的DC-DC转换器包括平均电路（2），其产生代表峰值电流（IPEAK）和 通过电感（L）的实际平均电流（IAVE）。 控制器（2,3,4）基于通过参考的感测信号（SES）调节开关的占空比（S 1，S 2）来控制DC-DC转换器的输出电压（VOUT） 电流水平（RPCS），如现有技术的峰值电流或谷值电流控制的DC-DC转换器，但现在使用也基于平均校正信号（ACS）的参考电流电平（RPCS），而不仅仅是输出电压 （VOUT）。 这使得转换器更精确地控制输出电压（VOUT）。
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公开(公告)号：US06496387B2
公开(公告)日：2002-12-17
申请号：US09828106
申请日：2001-04-06
IPC分类号： H02M3335
CPC分类号： H05B41/2856 , H05B41/2828
摘要： The invention relates to an energy converter for supplying electric energy from an energy source to a load. The converter comprises a transformer having a primary side and a secondary side, the secondary side being adapted to be connected to the load. At least a first and a second controllable switch are arranged in series with each other. The energy converter further comprises a control device for generating control signals with which the first and the second switch are opened and closed for generating an alternating current in the primary side of the transformer, the control device comprising with means for comparing a threshold value with the value of a quantity which relates or is equal to the value of a change of the voltage per unit of time at a node of the first switch and the second switch for determining switching instants of the first and the second switch. The control device is adapted to determine a reached maximum value of said quantity and to determine the threshold value on the basis of the determined maximum value of the quantity. As a result, delay of the comparator may be compensated, while in the near-capacitive mode switching can take place with minimal switching losses.
摘要翻译： 本发明涉及一种能量转换器，用于将能量从能量源提供给负载。 转换器包括具有初级侧和次级侧的变压器，次级侧适于连接到负载。 至少第一和第二可控开关彼此串联布置。 能量转换器还包括用于产生控制信号的控制装置，通过该控制信号，第一和第二开关被打开和关闭，用于在变压器的初级侧产生交流电，该控制装置包括用于将阈值与 与第一开关的节点处的每单位时间的电压的变化的值相关联的量的值，以及用于确定第一和第二开关的切换时刻的第二开关。 所述控制装置适于确定达到的所述数量的最大值，并且基于所确定的所述数量的最大值来确定所述阈值。 因此，可以补偿比较器的延迟，而在近电容模式下，可以以最小的开关损耗进行切换。
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公开(公告)号：US06433491B1
公开(公告)日：2002-08-13
申请号：US09828086
申请日：2001-04-06
IPC分类号： H05B3702
摘要： The invention relates to an energy converter for supplying electric energy from an energy source to a load. The converter comprises a transformer having a primary side and a secondary side, the secondary side being adapted to be connected to the load. At least a first and a second controllable switch are arranged in series with each other for generating an alternating current in the primary side of the transformer. The energy converter also comprises a control device for generating control signals with which the first and the second switch are opened and closed. The control device comprises a detector for generating a detection signal when the energy converter is operative in a capacitive or near-capacitive mode. To generate the detection signal, the detector detects a voltage jump that occurs at a mode between the first and the second switch when the first or the second switch is closed.
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