公开(公告)号：US11950347B2

公开(公告)日：2024-04-02

申请号：US17142819

申请日：2021-01-06

Applicant: LG Electronics Inc. ,  ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Younghwan Kwack ,  Jaekyung Yang ,  Seongho Son ,  Yongsoo Lee ,  Jeehoon Jung ,  Hwapyeong Park ,  Mina Kim

IPC: H05B6/06 ,  F24C15/10 ,  H02M3/06 ,  H02M7/10 ,  H05B1/02 ,  H05B6/12

CPC classification number: H05B6/065 ,  F24C15/106 ,  H02M3/06 ,  H02M7/103 ,  H05B1/0202 ,  H05B6/062 ,  H05B6/1236 ,  Y02B40/00

Abstract: An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed.

公开(公告)号：US20180301998A1

公开(公告)日：2018-10-18

申请号：US15951663

申请日：2018-04-12

Applicant: Accion Systems, Inc.

Inventor： Paul E. Fogel

IPC: H02M3/335 ,  H02M1/08 ,  H01J27/02

CPC classification number: H02M3/33569 ,  H01J27/022 ,  H02M1/08 ,  H02M3/33561 ,  H02M3/3376 ,  H02M7/103 ,  H02M2001/008

Abstract: A polarity-selectable high voltage direct current power supply including a first drive assembly that transforms a first low voltage DC input into a first medium voltage alternating current output; a first HV output assembly that transforms the first LV AC output into a first HV DC output, wherein the first HV output assembly defines a first input stage; a polarity selector coupled between the second output junction of the first drive assembly and the first and second input stages of the first HV output assembly, the polarity selector operable between a first configuration and a second configuration; wherein in the first configuration the first HV DC output has a positive polarity; and wherein in the second configuration the first HV DC output has a negative polarity.

公开(公告)号：US20180192479A1

公开(公告)日：2018-07-05

申请号：US15862537

申请日：2018-01-04

Applicant: LG Electronics Inc. ,  ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Younghwan KWACK ,  Jaekyung YANG ,  Seongho SON ,  Yongsoo LEE ,  Jeehoon JUNG ,  Hwapyeong PARK ,  Mina KIM

IPC: H05B6/06 ,  H02M7/10 ,  H02M3/06 ,  F24C15/10 ,  H05B1/02

CPC classification number: H05B6/065 ,  F24C15/106 ,  H02M3/06 ,  H02M7/103 ,  H05B1/0202 ,  H05B6/062 ,  H05B6/1236 ,  Y02B40/123

Abstract: An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed.

公开(公告)号：US09590500B2

公开(公告)日：2017-03-07

申请号：US14886343

申请日：2015-10-19

Applicant: Richwave Technology Corp.

Inventor： Chih-Sheng Chen ,  Tien-Yun Peng

IPC: H02M3/07 ,  H02M1/36

CPC classification number: H02M3/24 ,  H02M1/36 ,  H02M3/07 ,  H02M7/103 ,  H02M2003/075

Abstract: A voltage generator including an oscillator having an output, a charge pump having an input and an output, the input of the charge pump being coupled to the output of the oscillator, a smoothing capacitor, a resistor having an input end and an output end, wherein the input end is coupled to the charge pump and the output end is coupled to the smoothing capacitor, and a shorting element connected in parallel with the resistor and which, when turned on, causes the resistor to be at least partially bypassed, wherein the voltage generator is configured to supply voltage to a radio frequency (RF) switch via the smoothing capacitor, and a frequency of the oscillator is controlled to be faster during a switching period of the RF switch.

Abstract translation: 一种电压发生器，包括具有输出的振荡器，具有输入和输出的电荷泵，电荷泵的输入耦合到振荡器的输出，平滑电容器，具有输入端和输出端的电阻器， 其中所述输入端耦合到所述电荷泵，并且所述输出端耦合到所述平滑电容器，以及与所述电阻器并联连接的短路元件，并且当导通时使所述电阻器至少部分地被旁路，其中， 电压发生器被配置为通过平滑电容器向射频（RF）开关提供电压，并且在RF开关的开关周期期间将振荡器的频率控制得更快。

公开(公告)号：US20170047859A1

公开(公告)日：2017-02-16

申请号：US15339811

申请日：2016-10-31

Applicant: Laurence P. Sadwick

Inventor： Laurence P. Sadwick

IPC: H02M7/06 ,  H02M1/44 ,  H02J7/00 ,  H05B33/08

CPC classification number: H02M7/06 ,  H02J7/0052 ,  H02J7/022 ,  H02M1/4266 ,  H02M1/44 ,  H02M7/103 ,  H05B33/0815 ,  H05B33/0845 ,  H05B37/00 ,  H05B41/28 ,  Y02B70/123

Abstract: A power supply includes an alternating current input, a rectifier operable to generate a rectified signal based on the alternating current input, a voltage multiplier configured to generate a multiplied voltage based on the alternating current input, and an output configured to yield an electrical current based on the rectified signal from the rectifier and on the multiplied voltage from the voltage multiplier. Current is drawn from the alternating current input only during a fraction of each half-cycle of a waveform at the alternating current input.

Abstract translation: 电源包括交流输入，整流器，其可操作以基于交流输入产生整流信号;电压倍增器，被配置为基于交流输入产生倍增电压;以及输出，其被配置为产生基于电流的电流 来自整流器的整流信号和来自电压倍增器的倍增电压。 电流仅在交流输入的波形的每个半周期的一小部分内从交流输入引出。

公开(公告)号：US20170045572A1

公开(公告)日：2017-02-16

申请号：US15243864

申请日：2016-08-22

Applicant: Baur Prüf- und Messtechnik GMBH

Inventor： Philipp Rekers

IPC: G01R31/12 ,  G01R31/14

CPC classification number: G01R31/1272 ,  G01R31/14 ,  G01R31/40 ,  H02M3/33569 ,  H02M3/33576 ,  H02M7/103 ,  Y02B70/1433

Abstract: The invention relates to a circuit arrangement for generating a test voltage, in particular for testing electrical equipment, comprising an alternating voltage source or a voltage source having constant or essentially constant voltage and a circuit means connected to the voltage source for generating a preferably low-frequency alternating voltage U0. A power converter, preferably configured as a resonant converter, is connected to the alternating voltage source. A transformer device connected to the power converter is used for generating a high frequency UT, and a rectifier circuit means, in particular a cascaded and/or multistage one, is used for converting the high frequency to an amplitude that can be changed to a direct current voltage UHV. Furthermore, a switch device for charging the equipment being tested with the direct current voltage UHV and for discharging same is provided. In said circuit arrangement, the input of a converter is connected to the alternating voltage source U0 and the output of the converter is connected to the switch device for charging and discharging the equipment being tested. On the input side, the power converter is configured with (n) switch elements, and on the output side, the power converter comprises several (k) stages. The rectifier circuit means (C1 to C4, S5 to S8) is configured combined as an inverter circuit for discharging the equipment being tested, the switches of which can also be switched to valves that allow current flow in one direction only.

Abstract translation: 本发明涉及一种用于产生测试电压的电路装置，特别是用于测试电气设备，包括具有恒定或基本恒定电压的交流电压源或电压源，以及连接到电压源的电路装置， 频率交流电压U0。 优选地被配置为谐振转换器的功率转换器连接到交流电压源。 连接到功率转换器的变压器装置用于产生高频UT，并且整流电路装置，特别是级联和/或多级的装置被用于将高频转换成可以直接变化的幅度 电流特高压。 此外，提供了用直流电压UHV进行测试的设备进行充电并用于对其进行放电的开关装置。 在所述电路装置中，转换器的输入连接到交流电压源U0，转换器的输出端连接到开关装置，用于对被测设备进行充电和放电。 在输入侧，功率转换器配置有（n）个开关元件，并且在输出侧，功率转换器包括数个（k）级。 整流电路装置（C1至C4，S5至S8）被配置为组合作为逆变器电路，用于将被测设备放电，其开关也可以切换到仅允许电流在一个方向上流动的阀。

公开(公告)号：US09455704B2

公开(公告)日：2016-09-27

申请号：US14467952

申请日：2014-08-25

Applicant: Infineon Technologies Austria AG

Inventor： Marcus Nuebling ,  Jens Barrenscheen ,  Bernhard Strzalkowski

IPC: H02M3/07 ,  H03K17/691 ,  H02M1/08 ,  H02M3/156 ,  H02M7/10

CPC classification number: H03K17/691 ,  H02M1/08 ,  H02M3/07 ,  H02M3/073 ,  H02M3/156 ,  H02M7/103

Abstract: A circuit for a semiconductor switching element including a transformer. One embodiment provides a first voltage supply circuit having a first oscillator. A first transformer is connected downstream of the first oscillator. A first accumulation circuit for providing a first supply voltage is connected downstream of the first transformer. A driver circuit having input terminals for feeding in the first supply voltage and having output terminals for providing a drive voltage for the semiconductor switching element, designed to generate the drive voltage for the semiconductor switching element at least from the first supply voltage.

Abstract translation: 一种包括变压器的半导体开关元件的电路。 一个实施例提供了具有第一振荡器的第一电压供应电路。 第一变压器连接在第一振荡器的下游。 用于提供第一电源电压的第一累积电路连接在第一变压器的下游。 一种驱动器电路，具有用于馈送第一电源电压的输入端子，并且具有用于为半导体开关元件提供驱动电压的输出端子，用于至少从第一电源电压产生半导体开关元件的驱动电压。

公开(公告)号：US09431226B2

公开(公告)日：2016-08-30

申请号：US14440380

申请日：2012-11-05

Applicant: SHIMADZU CORPORATION

Inventor： Shiro Mizutani

IPC: H01J49/00 ,  H01J49/02 ,  H02M3/335 ,  H02M7/10 ,  H01J49/16 ,  H01J49/36 ,  H02M3/07 ,  H02M1/00

CPC classification number: H01J49/022 ,  H01J49/165 ,  H01J49/36 ,  H02M3/073 ,  H02M3/33507 ,  H02M7/103 ,  H02M2001/0077 ,  H02M2003/071

Abstract: An output terminal of a positive voltage generating circuit and an output terminal of a negative voltage generating circuit are connected in series, and an output terminal of the negative voltage generating circuit is connected to a ground via a resistor. A switching circuit and a series connection circuit of resistors are connected in parallel to each other between the output terminals of the positive voltage generating circuit and the negative voltage generating circuit. The switching circuit is on-off driven by a voltage signal taken from a junction point between the resistors, and the switching circuit is on-off driven by a voltage signal taken from a junction point between the resistors. Accordingly, when the polarity of an output voltage is switched, electric charges accumulated up to that point are discharged through the switching circuit of a voltage OFF-side polarity, so that the voltage quickly falls.

Abstract translation: 正电压发生电路的输出端子和负电压发生电路的输出端子串联连接，负电压产生电路的输出端子经由电阻器连接到地。 电阻器的开关电路和串联电路在正电压发生电路的输出端子和负电压产生电路之间并联连接。 开关电路由从电阻器之间的接点取得的电压信号驱动，并且开关电路由从电阻器之间的接合点获取的电压信号驱动。 因此，当切换输出电压的极性时，累积到该点的电荷通过电压OFF侧极性的开关电路放电，使得电压迅速下降。

公开(公告)号：US09357595B2

公开(公告)日：2016-05-31

申请号：US14514166

申请日：2014-10-14

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Keun Wook Lee ,  Byoung Woo Ryu

IPC: H05B33/08 ,  H02M7/06 ,  H02J3/00 ,  H02M3/158 ,  H02M3/335 ,  H02M7/10 ,  H02M7/5383 ,  H02J5/00 ,  H02J7/02 ,  H02J7/34

CPC classification number: H05B33/0809 ,  H02J5/00 ,  H02J7/345 ,  H02M3/158 ,  H02M3/33507 ,  H02M3/33523 ,  H02M7/103 ,  H02M7/5383 ,  H05B33/0815 ,  H05B33/0851

Abstract: A light emitting diode driver includes a power supplying unit receiving an alternating current (AC) power and outputting a transformed power according to a predetermined ratio, a rectifying unit rectifying the output power from the power supplying unit, and a double voltage unit receiving the rectified power from the rectifying unit and generating an output voltage such that the level of the output voltage is variable, and has constant duty and frequency thereof even the variance of the voltage level.

Abstract translation: 发光二极管驱动器包括：供电单元，其接收交流电（AC）电力并根据预定比率输出变换后的电力;整流单元对来自供电单元的输出功率进行整流;以及双电压单元，接收经整流的 并且产生输出电压，使得输出电压的电平是可变的，并且即使电压电平的变化也具有恒定的占空比和频率。

公开(公告)号：US09225253B2

公开(公告)日：2015-12-29

申请号：US13658640

申请日：2012-10-23

Applicant: Microchip Technology, Inc.

Inventor： Jimes Lei

IPC: H02M3/335 ,  H02M3/158 ,  H02M3/337 ,  H02M7/10 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H02M3/158 ,  H02M3/337 ,  H02M7/103 ,  H02M2001/0045 ,  H02M2001/007

Abstract: A switching linear amplifier has a DC-DC converter to increase a low input DC voltage to a first high voltage DC. A high voltage high frequency inverter is coupled to the DC-DC converter to generate high voltage pulses. A multistage voltage multiplier is coupled to the high voltage high frequency inverter to generate a second high voltage DC. A controlled charge and discharge circuit is coupled to the multistage voltage multiplier to drive a capacitive load.

Abstract translation: 开关线性放大器具有DC-DC转换器，以将低输入DC电压增加到第一高压DC。 高压高频逆变器耦合到DC-DC转换器以产生高电压脉冲。 多级电压倍增器耦合到高压高频逆变器以产生第二高压DC。 受控充电和放电电路耦合到多级电压倍增器以驱动电容性负载。