公开(公告)号：US11967899B2

公开(公告)日：2024-04-23

申请号：US17191805

申请日：2021-03-04

申请人： Marel Power Solutions, Inc.

发明人： Jean-Claude Harel

IPC分类号： H02M3/156 ,  H01L21/50 ,  H01L23/02 ,  H01L23/31 ,  H02B1/20 ,  H02K11/33 ,  H02M1/32 ,  H02M7/00 ,  H02M7/53846 ,  H05K7/14 ,  H05K7/20

CPC分类号： H02M3/1563 ,  H01L21/50 ,  H01L23/02 ,  H01L23/31 ,  H02B1/20 ,  H02K11/33 ,  H02M1/32 ,  H02M7/003 ,  H02M7/538466 ,  H05K7/1432 ,  H05K7/209 ,  H02M1/327

摘要： A compact inverter system includes a bus bar. The bus bar includes a terminal for connection to a positive terminal of a DC voltage supply. The compact inverter also includes a heat sink, a first transistor, and a second transistor. The first transistor has first and second terminals between which current is transmitted when the first transistor is activated, and a first gate terminal controlling the first transistor. The first terminal of the first transistor is thermally and electrically connected to the bus bar. The second transistor has first and second terminals between which current is transmitted when the second transistor is activated, and a second gate terminal controlling the second transistor. The first terminal of the second transistor is thermally and electrically connected to the heat sink. The first and second transistors are positioned between the bus bar and the heat sink. The first transistor is positioned between the second transistor and the bus bar. The second transistor is positioned between the first transistor and the heat sink.

公开(公告)号：US11831250B2

公开(公告)日：2023-11-28

申请号：US17358065

申请日：2021-06-25

申请人： General Electric Company

发明人： Zhi Zhou ,  Steven Mankevich

IPC分类号： H02M7/5387 ,  H02M3/158 ,  H02M7/53846 ,  H02M5/458

CPC分类号： H02M7/53875 ,  H02M3/1582 ,  H02M7/538466

摘要： A multi-switch types hybrid power electronics build block (MST HPEBB) least replaceable unit converter employs a first low voltage side (for example, 1000 volt power switches) and a second high voltage side (for example, 3000 volt power switches). The MST HPEBB LRU employs multiple bridge converters connected in series and/or in parallel, and coupled in part by a 1:1 transformer. To reduce weight and volume requirements compared to known PEBB LRUs, different power switch types are employed in different bridge converters. For example, in one exemplary embodiment, low voltage 1.7 kVolt SiC MOSFETS may be employed on the lower voltage side, while at least some 4.5 kVolt Silicon IGBTs may be employed on the high voltage side.

公开(公告)号：US20210159810A1

公开(公告)日：2021-05-27

申请号：US16938164

申请日：2020-07-24

申请人： Industry-Academic Cooperation Foundation, Yonsei University

发明人： Jungwook PARK ,  Hyoungkyu YANG

IPC分类号： H02M7/53846 ,  H02S40/32 ,  H02J11/00 ,  G05F1/67 ,  H02M3/156 ,  H02M1/084

摘要： Disclosed is an apparatus including: a photovoltaic panel; a CPG controller configured to receive a limit output power value of a photovoltaic panel, a photovoltaic panel terminal voltage, and a photovoltaic panel output current and output a photovoltaic panel terminal voltage reference; a direct current (DC)-voltage controller configured to receive the photovoltaic panel terminal voltage reference and the photovoltaic panel terminal voltage and output a duty ratio to cause an error between these values to become zero; a pulse width modulation (PWM) control signal generator configured to receive the duty ratio and output a PWM signal to control a DC/DC converter connected to the photovoltaic panel; the DC/DC converter configured to receive the PWM signals and perform CPG control; and a DC/AC inverter connected to the DC/DC converter and configured to convert DC power into AC power and output the AC power to an electrical grid.

公开(公告)号：US20190089412A1

公开(公告)日：2019-03-21

申请号：US16138424

申请日：2018-09-21

申请人： Enphase Energy, Inc.

发明人： Martin Fornage

IPC分类号： H04B5/00 ,  H04L25/02 ,  H01F27/42 ,  H03B7/14 ,  H02M7/53846 ,  H05K1/18 ,  H02M1/08

摘要： Apparatus for communicating across an isolation barrier. In one embodiment, the apparatus comprises a transformer having a first winding disposed on a first side of a printed circuit board (PCB) and coupled to a first local ground, and a second winding disposed on a second side of the PCB, the second side opposite to the first side, and coupled to a second local ground; a transmitter coupled to the first winding; and a receiver, coupled the second winding, that generates an output signal based on a signal received from the transmitter.

公开(公告)号：US20180226913A1

公开(公告)日：2018-08-09

申请号：US15749238

申请日：2015-09-04

申请人： Mitsubishi Electric Corporation

发明人： Kazunori HATAKEYAMA ,  Keisuke UEMURA ,  Takahiko KOBAYASHI ,  Yasuhiko WADA

IPC分类号： H02P27/08 ,  H02M7/53846 ,  H02M7/5395 ,  H02M1/084

摘要： A power converting apparatus for applying to a load an alternating-current voltage converted from a direct-current voltage includes an inverter that receives a PWM signal and applies the alternating-current voltage to the load and an inverter control unit that generates the PWM signal and supplies the PWM signal to the inverter. The frequency of the PWM signal is integer multiples of the frequency of the alternating-current voltage. The alternating-current voltage includes a plurality of positive pulses and a plurality of negative pulses in one cycle of the alternating-current voltage. The number of the positive pulses and the number of the negative pulses are equal.

公开(公告)号：US6016257A

公开(公告)日：2000-01-18

申请号：US909922

申请日：1997-08-12

申请人： Chin Chang ,  Joseph En-Cheng Chang ,  Gert W. Bruning

发明人： Chin Chang ,  Joseph En-Cheng Chang ,  Gert W. Bruning

IPC分类号： H05B41/24 ,  H02M7/5383 ,  H02M7/53846 ,  H05B41/282 ,  H05B41/285 ,  H05B41/298 ,  H05B41/392 ,  H02M3/335

CPC分类号： H02M7/53846 ,  H02M7/53803 ,  H05B41/2828 ,  H05B41/2856 ,  H05B41/2986 ,  H05B41/3925 ,  H02M2007/4815 ,  H02M2007/53878 ,  Y02B70/1441

摘要： A power supply, including a resonant circuit having an output voltage and a current oscillating therethrough, and a voltage-fed half-bridge inverter producing a source voltage at an output coupled to the resonant circuit. The inverter is responsive to a driving signal. A driving circuit has a first input representing the sensed current oscillating through the resonant circuit, a second input representing the output voltage, and a reference voltage. The driving circuit includes compensation circuitry for maintaining the output voltage at the reference voltage and commanding a phase shift angle, and phase-shifting circuitry producing the driving signal based on a phase-shift of the sensed current. The amount of phase shift is commanded by the compensation circuitry.

摘要翻译： 一种电源，包括具有输出电压和通过其振荡的电流的谐振电路，以及在耦合到谐振电路的输出处产生源极电压的电压馈电半桥逆变器。 变频器响应于驱动信号。 驱动电路具有表示通过谐振电路振荡的感测电流的第一输入，表示输出电压的第二输入和参考电压。 驱动电路包括用于将输出电压维持在参考电压并指令相移角的补偿电路，以及基于感测电流的相移产生驱动信号的相移电路。 相移量由补偿电路指令。

公开(公告)号：US5982651A

公开(公告)日：1999-11-09

申请号：US961164

申请日：1997-10-30

申请人： Chih-Ciang Huang

发明人： Chih-Ciang Huang

IPC分类号： H02M1/00 ,  H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H02M7/5387

CPC分类号： H02M7/53862 ,  H02M7/53846 ,  H02M1/32

摘要： In a half-bridge self-exciting switching power supply, an over-voltage detector receives the power supply output and generates an over-voltage signal when the power supply output exceeds a preset limit. An over-voltage cut-off circuit is connected to a pulse-width-modulated controller and a driving unit of the switching power supply. The over-voltage cut-off circuit applies a pull-down voltage to the driving unit so as to inhibit self-exciting operation of first and second self-excited switching circuits of a half-bridge self-excited circuit, and disables the pulse-width-modulated controller upon reception of the over-voltage signal from the over-voltage detector. Therefore, when the pulse-width-modulated controller or the driving unit becomes defective, the switching power supply can be cut-off automatically in order to prevent damage to a load and to the other components of the switching power supply.

摘要翻译： 在半桥自激开关电源中，过电压检测器接收电源输出，并在电源输出超过预设极限时产生过电压信号。 过电压截止电路连接到脉宽调制控制器和开关电源的驱动单元。 过电压切断电路向驱动单元施加下拉电压，以抑制半桥自激电路的第一和第二自激式开关电路的自激操作，并且禁止脉冲 - 宽带调制控制器在接收到来自过电压检测器的过电压信号时。 因此，当脉冲宽度调制控制器或驱动单元发生故障时，可以自动切断开关电源，以防止损坏负载和开关电源的其他部件。

公开(公告)号：US5469028A

公开(公告)日：1995-11-21

申请号：US901989

申请日：1992-06-22

申请人： Ole K. Nilssen

发明人： Ole K. Nilssen

IPC分类号： H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H02M7/5387 ,  H03K3/30 ,  H05B41/24 ,  H05B41/28 ,  H05B41/282 ,  H05B41/295 ,  H05B41/38 ,  H05B41/392 ,  G05F1/00

CPC分类号： H02M7/53862 ,  H02M7/53832 ,  H02M7/53835 ,  H02M7/53846 ,  H02M7/53873 ,  H03K3/30 ,  H05B41/245 ,  H05B41/28 ,  H05B41/2827 ,  H05B41/295 ,  H05B41/38 ,  H05B41/3925

摘要： In an electronic ballast, a half-bridge inverter drives a series-connected LC circuit near the LC circuit's natural resonance frequency. A relatively high-magnitude substantially sinusoidal 30 kHz output voltage develops across the tank-capacitor of the LC circuit. Each of several instant-start fluorescent lamps is series-connected with a current-limiting capacitor, thereby resulting in several lamp-capacitor series-combinations, each of which is connected across the tank-capacitor. The ballast is powered from ordinary 120 Volt/60 Hz power line voltage by way of a full-wave rectifier. At the DC output terminals of this rectifier exists a DC voltage having an instantaneous absolute magnitude equal to that of the power line voltage. Within the ballast, the inverter is powered from a DC supply voltage of constant magnitude about equal to the peak magnitude of the power line voltage. By interposing power-drawing circuitry in series with each lamp-capacitor combination, an auxiliary DC voltage is developed across a pair of auxiliary DC terminals. When no current flows from the auxiliary DC terminals, the magnitude of the auxiliary DC voltage is equal to that of the DC supply voltage. The maximum DC current available from the auxiliary DC terminals varies with the magnitude of the combined lamp currents and is adjusted so as to be equal to the peak magnitude of the current drawn from the power line; which current, as a result, is nearly sinusoidal.

摘要翻译： 在电子镇流器中，半桥逆变器在LC电路的固有谐振频率附近驱动串联LC电路。 在LC电路的储能电容器之间产生相对高幅度的基本正弦的30 kHz输出电压。 几个即时启动荧光灯中的每一个与限流电容器串联连接，从而导致几个灯电容器串联组合，其中每一个都连接在容器电容器两端。 镇流器由普通的120伏/ 60赫兹的电力线通过全波整流器供电。 在该整流器的直流输出端存在具有与电力线电压相等的瞬时绝对值的直流电压。 在镇流器内，逆变器由等于电源线电压的峰值幅度的恒定幅度的直流电源供电。 通过与每个灯电容组合插入电源绘图电路，跨越一对辅助直流端子开发辅助直流电压。 当没有电流从辅助直流端子流出时，辅助直流电压的大小等于直流电源电压的大小。 辅助直流端子可获得的最大直流电流随着组合的灯电流的大小而变化，并被调整为等于从电力线抽取的电流的峰值幅值; 结果，哪个电流几乎是正弦的。

公开(公告)号：US5451750A

公开(公告)日：1995-09-19

申请号：US17298

申请日：1993-02-12

申请人： Seong W. An

发明人： Seong W. An

IPC分类号： F24C7/02 ,  H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H05B6/66 ,  H05B6/68

CPC分类号： H02M7/53862 ,  H02M7/53846 ,  H05B6/683 ,  H05B6/685

摘要： A microwave output stabilizing apparatus for a microwave oven comprises a rectifier circuit for rectifying power from an AC power supply into a constant DC voltage; an invertor circuit for generating a high frequency power supply by controlling the DC voltage at an intermittent output state; a high voltage transformer for stepping up the high frequency power supply; and magnetron drive circuit for rectifying the high frequency power supply and oscillating a magnetron. Also, an inverter control circuit detects the current flowing into the primary winding of the high voltage transformer, converts the detected current into a corresponding voltage, the corresponding voltage with a reference voltage, and controls the inverter circuit according to the results of the comparison. Further included are an anode current detecting circuit for detecting the anode current of the magnetron and converting the detected anode current into the corresponding voltage; and, a reference voltage adjusting circuit for evaluating the anode current and changing the reference voltage of the invertor control circuit in accordance with the results of the evaluation.

摘要翻译： 一种用于微波炉的微波输出稳定装置，包括用于将来自AC电源的功率整流为恒定DC电压的整流电路; 用于通过在间歇输出状态下控制DC电压来产生高频电源的逆变器电路; 用于加高高频电源的高压变压器; 以及用于整流高频电源并振荡磁控管的磁控管驱动电路。 此外，逆变器控制电路检测流入高压变压器的初级绕组的电流，将检测到的电流转换为相应的电压，相应的电压作为参考电压，并根据比较结果控制逆变器电路。 进一步包括用于检测磁控管的阳极电流并将检测到的阳极电流转换成相应电压的阳极电流检测电路; 以及用于根据评估结果评估阳极电流和改变逆变器控制电路的参考电压的参考电压调节电路。

公开(公告)号：US5426349A

公开(公告)日：1995-06-20

申请号：US107649

申请日：1993-08-18

申请人： Ole K. Nilssen

发明人： Ole K. Nilssen

IPC分类号： H02M7/5383 ,  H02M7/53846 ,  H02M7/53862 ,  H02M7/5387 ,  H03K3/30 ,  H05B41/24 ,  H05B41/28 ,  H05B41/282 ,  H05B41/295 ,  H05B41/38 ,  H05B41/392 ,  H05B41/29

CPC分类号： H02M7/53832 ,  H02M7/53835 ,  H02M7/53846 ,  H02M7/53862 ,  H02M7/53873 ,  H03K3/30 ,  H05B41/245 ,  H05B41/28 ,  H05B41/2827 ,  H05B41/295 ,  H05B41/38 ,  H05B41/3925 ,  Y02B20/185 ,  Y02B70/1441 ,  Y10S315/05

摘要： A current-fed parallel-resonant self-oscillating electronic ballast includes four special switching devices, each serving the function of a single switching transistor in a full-bridge inverter. Each special switching device includes two series-connected field effect transistors synchronously gated via positive feedback of a sinusoidal output voltage. The reason for using two series-connected field-effect transistors in lieu of a single field-effect transistor of higher voltage rating relates to the fact that, for the DC supply voltages associated with certain electronic ballast circuits powered from commonly encountered power line voltages, field-effect transistors of lower voltage ratings (e.g., 400 Volt) are substantially lower in cost per-unit Volt-Ampere rating as compared with field-effect transistors of higher voltage ratings (e.g., 800 Volt). Thus, although such higher-voltage transistors are readily available, the net overall ballast cost will nevertheless be significantly reduced by using the special switching devices.

摘要翻译： 电流并联谐振自振荡电子镇流器包括四个专用开关器件，每个专用开关器件在全桥逆变器中用作单个开关晶体管的功能。 每个特殊开关器件包括通过正弦输出电压的正反馈同步门控的两个串联连接的场效应晶体管。 使用两个串联连接的场效应晶体管代替具有较高额定电压额定值的单个场效应晶体管的原因涉及以下事实：对于由通常遇到的电源线电压供电的某些电子镇流器相关联的DC电源电压， 与具有较高额定电压（例如800伏特）的场效应晶体管相比，具有较低额定电压（例如，400伏特）的场效应晶体管的成本每单位伏特安培额定值要低得多。 因此，虽然这样的高压晶体管是容易获得的，但通过使用特殊的开关器件，整体镇流器的净成本将会显着降低。