专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20210159810A1 SYSTEM AND METHOD FOR CONTROLLING CONSTANT POWER GENERATION OF PHOTOVOLTAIC SYSTEM 有权
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.

2. 发明申请

US20190089412A1 APPARATUS FOR COMMUNICATING ACROSS AN ISOLATION BARRIER 审中-公开
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.

3. 发明申请

US20180226913A1 POWER CONVERTING APPARATUS AND HEAT PUMP APPARATUS 审中-公开
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.

4. 发明授权

US6016257A Voltage regulated power supply utilizing phase shift control 失效
标题翻译：采用相移控制的稳压电源
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。

5. 发明授权

US5982651A Half-bridge self-exciting switching power supply with over-voltage cut-off capability 失效
标题翻译：具有过压截止能力的半桥自激开关电源
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。

6. 发明授权

US5469028A Electronic ballast drawing sinusoidal line current 失效
标题翻译：电子镇流器绘制正弦线电流
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。

7. 发明授权

US5451750A Microwave output stabilizing apparatus of a microwave oven and a method thereof 失效
标题翻译：微波炉的微波输出稳定装置及其方法
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。

8. 发明授权

US5426349A Electronic ballast with two-transistor switching device 失效
标题翻译：电子镇流器采用双晶体管开关器件
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。

9. 发明授权

US5191262A Extra cost-effective electronic ballast 失效
标题翻译：超高性价比的电子镇流器
公开(公告)号：US5191262A
公开(公告)日：1993-03-02
申请号：US819655
申请日：1992-01-13
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 , H05B41/285 , H05B41/295 , H05B41/38 , H05B41/392
CPC分类号： H02M7/53873 , H02M7/53832 , H02M7/53835 , H02M7/53846 , H02M7/53862 , H03K3/30 , H05B41/245 , H05B41/28 , H05B41/2827 , H05B41/2856 , H05B41/295 , H05B41/38 , H05B41/3925 , Y10S315/04 , Y10S315/07
摘要： A half-bridge inverter is powered from a constant DC voltage and provides an AC output voltage that is--in contrast with the usual squarewave voltage--describable as being a sinusoidal waveform with the tops clipped off at some fixed magnitude; or, described differently, a waveform composed of truncated sinusoidal waves; or, described still differently, a waveform having trapezoidally shaped half-cycles. This AC voltage is applied across the primary winding of a so-called reactance transformer, whose loosely coupled secondary winding is connected across a gas discharge lamp. The internal inductive reactance of the secondary winding constitutes a lamp ballasting means by way of limiting the magnitude of the resulting lamp current to a pre-established desired level. Potentially damaging parasitic resonances--which are very likely to occur under actual operational circumstances with an unloaded secondary winding when the primary winding is supplied with a squarewave voltage--are avoided because of the tuncated sinusoidal waveshape of the AC voltage; which truncated sinusoidal shape is effeciently attained by a combination of three factors: (i) using rapidly switching transistors in the inverter; (ii) having the transformer's primary winding exhibit a substantial shunt inductance; and (iii) providing for a slow-down capacitor coupled directly across the primary winding, thereby to substantially slow down the rise time of the inverter's output voltage as compared with what it would have been if it were to have been determined solely by the high switching speed of the transistors.
摘要翻译：半桥逆变器由恒定的直流电压供电，并提供一个交流输出电压，与通常的方波电压相反，可以描述为一个正弦波形，顶端以一定的幅度被截止; 或者以不同的方式描述由截断的正弦波组成的波形; 或者不同地描述具有梯形半周期的波形。该交流电压施加在所谓的电抗变压器的初级绕组上，其中松散耦合的次级绕组连接在气体放电灯上。次级绕组的内部感抗通过将所得到的灯电流的大小限制到预先确定的期望水平来构成灯镇流装置。由于交流电压的正弦波形的波形，避免了在初级绕组提供方波电压时，在实际运行情况下可能会发生无负载次级绕组的潜在的寄生谐振。截断的正弦形状通过三个因素的组合有效地实现：（i）使用逆变器中的快速开关晶体管; （ii）使变压器的初级绕组具有相当大的并联电感; 和（iii）提供直接耦合在初级绕组上的减速电容器，从而基本上减慢了逆变器的输出电压的上升时间，如果仅仅由高电平晶体管的切换速度。

10. 发明授权

US5179509A High-frequency and high-voltage power supply unit with internal protecting circuit 失效
标题翻译：具有内部保护电路的高频高压电源单元
公开(公告)号：US5179509A
公开(公告)日：1993-01-12
申请号：US781030
申请日：1991-10-21
申请人： Jackson Ling
发明人： Jackson Ling
IPC分类号： H02M1/00 , H02M1/32 , H02M7/5383 , H02M7/53846 , H02M7/53862 , H05B41/285
CPC分类号： H02M7/53862 , H02M1/32 , H02M7/53846 , H05B41/2855 , Y10S315/07
摘要： A high-frequency and high-voltage power supply unit with an internal protecting circuit includes a first DC power supply device, a second DC power supply device, a converting circuit, a sensing/holding circuit, and an amplifying circuit, where the DC power supply device incorporates with the converting circuit to generate high-frequency and high-voltage power to a neon light load. A wire is connected between a core of a third transformer and the sensing/holding circuit, and a pair of discharging tips disposed between the wire and one output terminal, such that when both output terminals disconnect from the load, a discharge occurs on the dischraging tips, causing an impulse which is further fed back to the sensing/holding circuit through the amplying circuit cutting off the operation of the converting circuit. When only one output terminal disconnects from the load, an impulse is generated and fed back to the sensing/holding circuit through the amplying circuit, cutting off the operation of the converting circuit.
摘要翻译：具有内部保护电路的高频和高压电源单元包括第一直流电源装置，第二直流电源装置，转换电路，感测/保持电路和放大电路，其中直流电力供电装置与转换电路结合，以产生高频和高压功率到霓虹灯负载。导线连接在第三变压器的芯与感测/保持电路之间，以及一对放电尖端，其布置在线和一个输出端之间，使得当两个输出端与负载断开时，放电发生尖端，引起脉冲，其进一步通过补偿电路反馈到感测/保持电路，从而切断转换电路的操作。当只有一个输出端子与负载断开时，产生脉冲并通过应用电路反馈到感测/保持电路，切断转换电路的操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式