公开(公告)号：US20120068679A1

公开(公告)日：2012-03-22

申请号：US13232212

申请日：2011-09-14

申请人： Francois Klein ,  Christophe Taurand

发明人： Francois Klein ,  Christophe Taurand

IPC分类号： G05F1/618

CPC分类号： H02M3/1582 ,  H02M2001/0022

摘要： This regulated power supply system with high input voltage dynamics, of the type having a shared inductance buck/boost transformer and having at least two controllable semiconductor switching members, one associated with the buck function of the transformer and the other with the boost function of the transformer, is characterized in that one of the controllable semiconductor switching members is driven by control means as a function of the system's input voltage, and the other is driven continuously by enslavement means on the output voltage.

摘要翻译： 这种具有高输入电压动力学的稳压电源系统，具有共享电感降压/升压变压器并具有至少两个可控制的半导体开关元件，一个与变压器的降压功能相关，另一个具有升压功能 变压器的特征在于，可控半导体开关元件中的一个由控制装置作为系统的输入电压的函数驱动，另一个由输入电压上的奴役装置连续驱动。

公开(公告)号：US20120043953A1

公开(公告)日：2012-02-23

申请号：US13206819

申请日：2011-08-10

申请人： Takuro OHMARU

发明人： Takuro OHMARU

IPC分类号： G05F1/618

CPC分类号： H02M3/156

摘要： In the case where the duty cycle of the PWM signal exists and the duty cycle of the PWM signal is constant for a certain period, a feedback control circuit is operated intermittently with the duty cycle fixed. Specifically, a power supply circuit includes an A/D converter circuit for forming a digital value based on an analog value obtained by monitoring an output voltage based on a reference voltage, a digital filter circuit for smoothing the digital value, a PWM signal generator circuit for generating a PWM signal based on an output value of the digital filter circuit, and an operation mode control circuit for controlling a circuit operation mode based on the duty cycle of the PWM signal.

摘要翻译： 在存在PWM信号的占空比并且PWM信号的占空比在一定时间内恒定的情况下，反馈控制电路在占空比固定的情况下间歇地操作。 具体地说，电源电路包括A / D转换器电路，用于基于通过基于参考电压监视输出电压获得的模拟值形成数字值，用于平滑数字值的数字滤波器电路，PWM信号发生器电路 用于基于数字滤波器电路的输出值产生PWM信号;以及操作模式控制电路，用于基于PWM信号的占空比来控制电路操作模式。

公开(公告)号：US20120025797A1

公开(公告)日：2012-02-02

申请号：US13088328

申请日：2011-04-15

申请人： Kazuyoshi FUTAMURA ,  Takashi MATSUMOTO ,  Ryuta NAGAI

发明人： Kazuyoshi FUTAMURA ,  Takashi MATSUMOTO ,  Ryuta NAGAI

IPC分类号： G05F1/618

CPC分类号： H02M3/156 ,  H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

摘要： A control circuit for controlling a power supply including a first switch and a second switch coupled in series between a first potential and a second potential. The control circuit includes a detection circuit that detects a magnitude relation of a voltage value at a node between the first and second switches and a reference value during a period in which the first switch and the second switch are inactivated. The detection circuit generates a control signal corresponding to the magnitude relation. A regulation circuit regulates a switching timing of the second switch in response to the control signal to decrease a difference between the voltage value at the node and the reference value.

摘要翻译： 一种用于控制包括在第一电位和第二电位之间串联耦合的第一开关和第二开关的电源的控制电路。 控制电路包括检测电路，其检测在第一开关和第二开关之间的节点处的电压值的大小关系和在第一开关和第二开关被停用的时段期间的参考值。 检测电路产生对应于幅度关系的控制信号。 调节电路响应于控制信号来调节第二开关的开关定时，以减小节点处的电压值与参考值之间的差。

公开(公告)号：US20110260543A1

公开(公告)日：2011-10-27

申请号：US13064652

申请日：2011-04-06

申请人： Corentin Rizet

发明人： Corentin Rizet

IPC分类号： H02J9/06 ,  G05F1/618

CPC分类号： H02M1/34 ,  H02M7/48 ,  Y10T307/625

摘要： A three-level reversible converter comprising two main switching units respectively equipped with a first and second main switch, a main switching point, and a third main switch common to the two main switching units, comprising: capacitors connected between said main switching point and said three levels, a first two-level auxiliary switching unit connected to a first auxiliary switching point, a second three-level auxiliary switching unit connected to a second auxiliary switching point, and a transformer equipped with windings connected between the main switching point and the auxiliary switching points. An uninterruptible power supply provided with this converter.

摘要翻译： 一种三电平可逆转换器，包括分别配备有两个主开关单元公共的第一和第二主开关，主开关点和公共的第三主开关的两个主开关单元，包括：连接在所述主开关点和所述 三级，连接到第一辅助切换点的第一二级辅助切换单元，连接到第二辅助切换点的第二三级辅助切换单元，以及配备有连接在主切换点和辅助切换点之间的线圈的变压器 切换点。 此转换器提供的不间断电源。

公开(公告)号：US20110241640A1

公开(公告)日：2011-10-06

申请号：US13047378

申请日：2011-03-14

申请人： Weihong Qiu ,  Chun Cheung ,  Faisal Ahmad

发明人： Weihong Qiu ,  Chun Cheung ,  Faisal Ahmad

IPC分类号： G05F1/618

CPC分类号： H02M3/1584

摘要： A method of operating a regulator controller IC for performing intermittent diode braking for controlling a multiple phase voltage regulator. The method includes receiving at least one signal for detecting repetitive load transients, determining a rate of the repetitive load transients, generating diode braking control signals, each for applying diode braking to a corresponding one of multiple phases for at least one load transient when the repetitive load transients are below a first rate, and controlling the diode braking control signals to drop application of diode braking of at least one phase for at least one load transient when the repetitive load transients are at least the first rate. The method may include rotating the application of diode braking among the phases during successive applications of diode braking. The method may include dropping an increased number of phases for diode braking as the rate of repetitive load transients is increased.

摘要翻译： 一种用于执行用于控制多相电压调节器的间歇二极管制动的调节器控制器IC的方法。 该方法包括接收至少一个用于检测重复负载瞬变的信号，确定重复负载瞬变的速率，产生二极管制动控制信号，每个用于将二极管制动施加到至少一个负载瞬变的相应的一个相， 当重复负载瞬变至少为第一速率时，负载瞬变低于第一速率，并且控制二极管制动控制信号以降低至少一个相位的二极管制动的至少一个负载瞬变的应用。 该方法可以包括在二极管制动的连续应用期间在相间旋转二极管制动的应用。 该方法可以包括当重复负载瞬变的速率增加时，减少用于二极管制动的增加的相位数。

公开(公告)号：US20110227550A1

公开(公告)日：2011-09-22

申请号：US12898971

申请日：2010-10-06

申请人： MICHAEL M. WALTERS ,  WEIHONG QIU

发明人： MICHAEL M. WALTERS ,  WEIHONG QIU

IPC分类号： G05F1/618

CPC分类号： H02M3/1582

摘要： A buck boost converter generates an output voltage responsive to an input voltage and at least one switching control signal in a buck mode of operation, a boost mode of operation and a buck-boost mode of operation. Control logic generates the at least one switching control signal responsive to the output voltage, a reference voltage, and a sensed voltage associated with an inductor current of the buck boost converter. The sensed voltage associated with the inductor current enables the control logic to generate the at least one switching control signal in a selected one of the buck mode of operation, the boost mode of operation and the buck-boost mode of operation.

摘要翻译： 降压升压转换器在降压操作模式，升压操作模式和降压 - 升压操作模式下，响应于输入电压和至少一个开关控制信号产生输出电压。 响应于输出电压，参考电压和与降压升压转换器的电感器电流相关联的感测电压，控制逻辑产生至少一个开关控制信号。 感测到的与电感器电流相关联的电压使得控制逻辑能够在降压操作模式，升压操作模式和降压 - 升压操作模式中选择的一个中产生至少一个开关控制信号。

公开(公告)号：US20110215782A1

公开(公告)日：2011-09-08

申请号：US12932183

申请日：2011-02-18

申请人： Shuai Cheng

发明人： Shuai Cheng

IPC分类号： G05F1/618

CPC分类号： G05F1/10

摘要： Methods and circuits related to power regulation are disclosed. In one embodiment, a power regulator for converting an input electrical signal to an output electrical signal to supply power to a load, can include: (i) a power stage having switching devices and a filter; (ii) a regulation signal generator for the switching devices that includes a feedback circuit and a PWM, the feedback circuit receiving an output signal from the power stage, the PWM receiving an output from the feedback circuit, and generating a PWM control signal; (iii) a constant time generator receiving the PWM control signal and generating a constant time signal based on the PWM control signal duty cycle; and (iv) a logic/driving circuit receiving the PWM control signal and the constant time signal, and controlling operation of the switching devices to modulate the output signal from the power stage, and maintaining a pseudo constant operation frequency.

摘要翻译： 公开了与功率调节相关的方法和电路。 在一个实施例中，用于将输入电信号转换为输出电信号以向负载供电的功率调节器可以包括：（i）具有开关装置和滤波器的功率级; （ii）用于包括反馈电路和PWM的开关装置的调节信号发生器，所述反馈电路接收来自所述功率级的输出信号，所述PWM接收来自所述反馈电路的输出，以及产生PWM控制信号; （iii）恒定时间发生器接收所述PWM控制信号，并且基于所述PWM控制信号占空比产生恒定时间信号; 以及（iv）接收所述PWM控制信号和所述恒定时间信号的逻辑/驱动电路，以及控制所述开关器件的操作以调制来自所述功率级的输出信号，以及维持伪恒定工作频率。

公开(公告)号：US20110199065A1

公开(公告)日：2011-08-18

申请号：US13094234

申请日：2011-04-26

申请人： Tomohiro KUME

发明人： Tomohiro KUME

IPC分类号： G05F1/618

CPC分类号： H02M3/156

摘要： A DC-to-DC converter includes a triangular wave generator, a variable gain amplifier configured to amplify an error between a reference voltage and a feedback voltage which is a feedback of an output voltage so that a gain relatively decreases as an input voltage increases, and relatively increases as the input voltage decreases, and a comparator configured to compare an output of the triangular wave generator with an output of the variable gain amplifier. The variable gain amplifier includes a differential pair configured to convert the feedback voltage and the reference voltage into currents, a Gilbert cell circuit configured to differentially receive the currents output from the differential pair, an output conversion circuit configured to convert differential outputs from the Gilbert cell circuit into a single output, and a tail current source configured to supply, to the differential pair, tail currents having a magnitude corresponding to the input voltage.

摘要翻译： DC-DC转换器包括三角波发生器，可变增益放大器，被配置为放大参考电压和作为输出电压的反馈的反馈电压之间的误差，使得增益随着输入电压的增加而相对减小， 并且随着输入电压降低而相对增加，并且比较器被配置为将三角波发生器的输出与可变增益放大器的输出进行比较。 可变增益放大器包括被配置为将反馈电压和参考电压转换成电流的差分对，配置成差分地接收从差分对输出的电流的吉尔伯特单元电路，被配置为转换来自吉尔伯特单元的差分输出的输出转换电路 电路转换成单个输出，并且尾电流源被配置为向差分对提供具有对应于输入电压的幅度的尾部电流。

公开(公告)号：US20110175588A1

公开(公告)日：2011-07-21

申请号：US13008374

申请日：2011-01-18

申请人： Toru MIYAMAE

发明人： Toru MIYAMAE

IPC分类号： G05F1/618

CPC分类号： H02M3/1582

摘要： A control circuit for a switching supply, include: a first control circuit that selects one of a first signal to switch a boost mode and a step-down mode and a second signal to control an on-period of a switch based on an input voltage, the switch provided between a terminal to which the input voltage is applied and an inductor; and a second control circuit that controls the switching supply based on an output voltage and the selected one of the first signal and the second signal.

摘要翻译： 一种用于开关电源的控制电路，包括：第一控制电路，其选择第一信号中的一个以切换升压模式和降压模式，以及第二信号，以基于输入电压来控制开关的接通周期 设置在施加输入电压的端子与电感器之间的开关; 以及第二控制电路，其基于输出电压和所选择的第一信号和第二信号中的一个来控制开关电源。

公开(公告)号：US20110163732A1

公开(公告)日：2011-07-07

申请号：US12845999

申请日：2010-07-29

申请人： Steven Sapp ,  Ashok Challa ,  Christopher B. Kocon

发明人： Steven Sapp ,  Ashok Challa ,  Christopher B. Kocon

IPC分类号： G05F1/618

CPC分类号： H01L29/7813 ,  H01L29/407 ,  H01L29/7803

摘要： A synchronous buck converter includes a high-side switch and a low-side switch serially coupled to one another. The low-side switch includes a field effect transistor that comprises: a trench extending into a drift region of the field effect transistor; a shield electrode in a lower portion of the trench, wherein the shield electrode is insulated from the drift region by a shield dielectric; a gate electrode in the trench over the shield electrode, wherein the gate electrode is insulated from the shield electrode by an inter-electrode dielectric; source regions adjacent the trench; a source metal contacting the source regions; and a resistive element having one end contacting the shield electrode and another end contacting the source metal in the field effect transistor.

摘要翻译： 同步降压转换器包括彼此串联耦合的高侧开关和低侧开关。 低侧开关包括场效应晶体管，其包括：延伸到场效应晶体管的漂移区域的沟槽; 在所述沟槽的下部中的屏蔽电极，其中所述屏蔽电极通过屏蔽电介质与所述漂移区域绝缘; 在所述屏蔽电极上的沟槽中的栅电极，其中所述栅电极通过电极间电介质与所述屏蔽电极绝缘; 与沟槽相邻的源区; 源极金属与源极区域接触; 以及电阻元件，其一端接触屏蔽电极，另一端接触场效应晶体管中的源极金属。