PFC converter using a predetermined value that varies in synchronization with a phase of the input voltage
    1.
    发明授权
    PFC converter using a predetermined value that varies in synchronization with a phase of the input voltage 有权
    PFC转换器使用与输入电压的相位同步变化的预定值

    公开(公告)号:US08508195B2

    公开(公告)日:2013-08-13

    申请号:US13406602

    申请日:2012-02-28

    申请人: Yoshiyuki Uno

    发明人: Yoshiyuki Uno

    IPC分类号: G05F1/656 G05F1/613

    摘要: A PFC converter that prevents and reduces switching losses by controlling ripple of inductor current and enables application for high power usage, includes a switching device that is turned off when an inductor current flowing through an inductor reaches a first threshold value, and turned on when the inductor current reaches a second threshold value. A switching control circuit sets a reference value of the inductor current using results from an input voltage detection circuit and an output voltage detection circuit. The first threshold value is produced by adding a predetermined value to the reference value, and the second threshold value is produced by subtracting the predetermined value from the reference value.

    摘要翻译: PFC转换器通过控制电感电流的波纹来防止和减少开关损耗,并且可以应用于高功率使用,包括当电流流过电感器的电感器电流达到第一阈值时关闭的开关器件,当 电感电流达到第二个阈值。 开关控制电路使用来自输入电压检测电路和输出电压检测电路的结果来设定电感电流的基准值。 第一阈值是通过将预定值加到参考值而产生的,而第二阈值是通过从参考值中减去预定值来产生的。

    Power factor correction converter including input current detecting circuit
    2.
    发明授权
    Power factor correction converter including input current detecting circuit 有权
    功率因数校正转换器包括输入电流检测电路

    公开(公告)号:US08395366B2

    公开(公告)日:2013-03-12

    申请号:US13110094

    申请日:2011-05-18

    申请人: Yoshiyuki Uno

    发明人: Yoshiyuki Uno

    摘要: A low-cost PFC converter capable of detecting an inductor current including a DC component and performing appropriate correction of a power factor with low loss includes a diode bridge that rectifies an AC voltage input from an AC input power supply Vac, a series circuit including an inductor and a switching element, a rectifying and smoothing circuit that is connected in parallel to the switching element and that includes a diode and a smoothing capacitor, and a digital signal processing circuit that performs on/off control on the switching element so that an input current input from the AC input power supply Vac has a similar waveform with respect to an AC voltage. A current flowing through the inductor during an off period of the switching element is detected using a current detecting resistor, and a decreased voltage of the current detecting resistor is sampled at the middle of the off period of the switching element, thereby detecting an average value of the input current.

    摘要翻译: 能够检测包括DC分量的电感电流并且以低损耗执行功率因数的适当校正的低成本PFC转换器包括对从AC输入电源Vac输入的AC电压进行整流的二极管电桥,串联电路包括 电感器和开关元件,与开关元件并联连接并且包括二极管和平滑电容器的整流和平滑电路以及对开关元件执行开/关控制的数字信号处理电路,使得输入 来自交流输入电源Vac的电流输入具有与AC电压相似的波形。 使用电流检测电阻器检测在开关元件的断开期间流过电感器的电流,并且在开关元件的截止期间的中间对电流检测电阻器的电压进行采样,从而检测平均值 的输入电流。

    SWITCHING POWER SUPPLY APPARATUS
    3.
    发明申请
    SWITCHING POWER SUPPLY APPARATUS 有权
    切换电源设备

    公开(公告)号:US20120236612A1

    公开(公告)日:2012-09-20

    申请号:US13235571

    申请日:2011-09-19

    申请人: Yoshiyuki UNO

    发明人: Yoshiyuki UNO

    IPC分类号: H02M7/06

    摘要: In a switching power supply apparatus, an alternating-current input power supply is input to the input terminals of a power factor correction converter and a DC-DC converter is connected to output terminals. A load is connected to the output of the DC-DC converter. A digital signal processing circuit takes the product of an output voltage error and a detection value of the input voltage as a current reference amplitude value and controls the on period of a switching element in accordance with the difference between the current reference amplitude value and the current flowing through an inductor. The target value of the output voltage or the output voltage error is corrected using a value that is proportional to the current reference amplitude value such that the output voltage rises as the load goes from a light to a heavy load state.

    摘要翻译: 在开关电源装置中,将交流输入电源输入到功率因数校正转换器的输入端子,将DC-DC转换器连接到输出端子。 负载连接到DC-DC转换器的输出。 数字信号处理电路将输出电压误差和输入电压的检测值的乘积作为电流参考振幅值,并根据电流参考振幅值和电流值之间的差来控制开关元件的导通周期 流过电感器。 输出电压或输出电压误差的目标值使用与当前参考振幅值成比例的值进行校正,使得输出电压随负载从轻负载状态上升而升高。

    POWER FACTOR CORRECTION CONVERTER
    4.
    发明申请
    POWER FACTOR CORRECTION CONVERTER 有权
    功率因数校正转换器

    公开(公告)号:US20120057382A1

    公开(公告)日:2012-03-08

    申请号:US13295179

    申请日:2011-11-14

    申请人: Yoshiyuki UNO

    发明人: Yoshiyuki UNO

    IPC分类号: H02M7/04

    摘要: A switching control circuit includes an A/D converter that converts detection signals of an input voltage detection circuit, a current detection resistor, and an output voltage detection circuit into a digital signal, a D/A converter that provides a reference voltage to an analog comparator, a PWM circuit that outputs a control voltage to a switching element, and a CPU that provides a specified value to the D/A converter as a reference value, reads the values converted by the A/D converter, and obtains the average value of the inductor current. The CPU reads an inductor current Ib when the output of the PWM circuit is set at a high level, and obtains the average value of an inductor current peak value Ip determined by the specified value and the inductor current value Ib at turn-on as an average inductor current value ILav.

    摘要翻译: 开关控制电路包括将输入电压检测电路,电流检测电阻和输出电压检测电路的检测信号转换为数字信号的A / D转换器,向模拟信号提供参考电压的D / A转换器 比较器,向开关元件输出控制电压的PWM电路和向D / A转换器提供指定值的CPU作为参考值,读取由A / D转换器转换的值,并获得平均值 的电感电流。 当PWM电路的输出被设置为高电平时,CPU读取电感器电流Ib,并且获得由指定值确定的电感器电流峰值Ip和导通时的电感器电流值Ib的平均值作为 平均电感电流值ILav。

    ISOLATED SWITCHING POWER SUPPLY APPARATUS
    5.
    发明申请
    ISOLATED SWITCHING POWER SUPPLY APPARATUS 有权
    隔离开关电源装置

    公开(公告)号:US20110222318A1

    公开(公告)日:2011-09-15

    申请号:US13039484

    申请日:2011-03-03

    IPC分类号: H02M3/335

    摘要: A switching power supply apparatus includes a PFC converter, a DC-DC converter, and primary-side and secondary-side digital control circuits that control the PFC converter and the DC-DC converter. On the basis of a voltage detected by an output voltage detection circuit, the primary-side digital control circuit transmits data about the on-time of a switching element of the DC-DC converter to the primary-side digital control circuit. On the basis of this data, the primary-side digital control circuit controls the on-time of the switching element.

    摘要翻译: 开关电源装置包括PFC转换器,DC-DC转换器以及控制PFC转换器和DC-DC转换器的初级侧和次级侧数字控制电路。 基于由输出电压检测电路检测的电压,初级侧数字控制电路将关于DC-DC转换器的开关元件的接通时间的数据发送到初级侧数字控制电路。 基于该数据,初级侧数字控制电路控制开关元件的接通时间。

    POWER FACTOR CORRECTION CONVERTER
    6.
    发明申请
    POWER FACTOR CORRECTION CONVERTER 有权
    功率因数校正转换器

    公开(公告)号:US20100097829A1

    公开(公告)日:2010-04-22

    申请号:US12652103

    申请日:2010-01-05

    IPC分类号: H02M7/217

    摘要: A power factor correction converter includes a diode bridge arranged to perform full-wave rectification on an AC input power supply, a switching element arranged to perform switching on an output voltage thereof, an inductor arranged to pass a current interrupted by the switching element and to accumulate and emit excitation energy, a diode, and a smoothing capacitor defining a step-up chopper circuit. A digital signal processing circuit detects a phase of an input voltage, and a switching frequency of the switching element is modulated in accordance with the phase. Accordingly, the switching frequency can be appropriately modulated without depending on an input voltage, so that a wide range of input voltages can be accepted while suppressing EMI noise with a peak generated in the switching frequency and higher-order frequency components thereof.

    摘要翻译: 功率因数校正转换器包括:二极管电桥,被配置为在AC输入电源上执行全波整流;开关元件,被布置成对其输出电压进行开关;电感器,被布置成使由开关元件中断的电流通过, 累积并发射激发能量,二极管和限定升压斩波电路的平滑电容器。 数字信号处理电路检测输入电压的相位,并根据该相位调制开关元件的开关频率。 因此,可以适当地调制开关频率而不依赖于输入电压,从而可以在以开关频率及其高阶频率分量产生的峰值抑制EMI噪声的同时接受宽范围的输入电压。

    Method for surface treating a die by electron beam irradiation and a die treated thereby
    7.
    发明授权
    Method for surface treating a die by electron beam irradiation and a die treated thereby 失效
    通过电子束照射对管芯进行表面处理的方法和由此处理的管芯

    公开(公告)号:US07049539B2

    公开(公告)日:2006-05-23

    申请号:US10400602

    申请日:2003-03-27

    IPC分类号: B23P9/00

    CPC分类号: G21K5/04

    摘要: Method for surface treating a die made of metal in which a low energy, pulsed electron beam, which does not scatter, performs a treatment over a wide area due to presence of anode plasma in a chamber in which the electron beam is formed to smooth and gloss a surface of the die and increase a surface hardness and corrosion resistance of the die. The irradiation may be performed with an energy density not less than 1 J/cm2 per pulse, at least 5 pulse irradiations and a pulse duration of at least 1 μs. A die subjected to the surface treatment method exhibits improved surface smoothness and glossiness, as well as high corrosion resistance.

    摘要翻译: 用于表面处理由金属制成的管芯的方法,其中不散射的低能量的脉冲电子束由于在其中形成电子束平滑的室中存在阳极等离子体而在广泛的区域上进行处理, 光泽模具的表面并增加模具的表面硬度和耐腐蚀性。 照射可以以每脉冲1J / cm 2以上的能量密度进行,至少5次脉冲照射和至少1μs的脉冲持续时间。 经受表面处理方法的模具表现​​出改善的表面光滑度和光泽度以及高耐腐蚀性。

    Apparatus for regenerating activated carbon
    8.
    发明授权
    Apparatus for regenerating activated carbon 失效
    用于再生活性炭的装置

    公开(公告)号:US4147504A

    公开(公告)日:1979-04-03

    申请号:US768969

    申请日:1977-02-16

    摘要: The regenerating apparatus or furnace has gas burners mounted thereon to deliver combustion gas tangentially to a header and thence to distributing ports arranged circumferentially around and internally of a columnar bed of carbon being regenerated to provide uniform temperature distribution across the bed. In an alternate construction, the columnar bed is annular, headers are provided exteriorly and interiorly of the bed, and distribution ports conduct the combustion gas through the inner and outer walls defining the annular bed.

    摘要翻译: 再生设备或炉具有安装在其上的气体燃烧器,以将燃烧气体切向地传送到集管,并且从而分配端口沿圆周方向排列成圆柱形碳再生床,以提供均匀的温度分布。 在替代结构中,柱状床是环形的,集管设置在床的外部和内部,并且分配端口通过限定环形床的内壁和外壁引导燃烧气体。

    SWITCHING POWER SUPPLY APPARATUS
    9.
    发明申请
    SWITCHING POWER SUPPLY APPARATUS 有权
    切换电源设备

    公开(公告)号:US20120313433A1

    公开(公告)日:2012-12-13

    申请号:US13591254

    申请日:2012-08-22

    申请人: Yoshiyuki UNO

    发明人: Yoshiyuki UNO

    IPC分类号: H02M3/157 H02M3/156

    摘要: In a switching power supply apparatus, a resonant capacitor and an inductor are connected in series between a primary winding in a transformer and a second switching element. A first rectifier smoothing circuit including a diode and a capacitor rectifies and smoothes a voltage occurring at a first secondary winding in the transformer during an on period of a first switching element to extract a first output voltage. A second rectifier smoothing circuit including a diode and a capacitor rectifies and smoothes a voltage occurring at a second secondary winding in the transformer during an on period of the second switching element to extract a second output voltage. A control circuit controls an on time of the first switching element and an on time of the second switching element on the basis of the first output voltage and the second output voltage.

    摘要翻译: 在开关电源装置中,谐振电容器和电感器串联连接在变压器中的初级绕组和第二开关元件之间。 包括二极管和电容器的第一整流器平滑电路在第一开关元件的导通期间对在变压器中的第一次级绕组产生的电压进行整流和平滑,以提取第一输出电压。 包括二极管和电容器的第二整流器平滑电路在第二开关元件的导通周期期间对在变压器中的第二次级绕组处产生的电压进行整流和平滑,以提取第二输出电压。 控制电路基于第一输出电压和第二输出电压来控制第一开关元件的接通时间和第二开关元件的导通时间。