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

US20170279313A1 INDUCTIVE POWER TRANSMITTER 审中-公开
公开(公告)号：US20170279313A1
公开(公告)日：2017-09-28
申请号：US15505336
申请日：2015-08-13
申请人： PowerbyProxi Limited
发明人： Aiguo HU , Jianlong TIAN
IPC分类号： H02J50/12 , H02M7/538
CPC分类号： H02J50/12 , H02M7/53803 , H02M7/53835 , H02M7/53846 , H02M2001/0058 , H02M2007/4818 , Y02B70/1441 , Y02B70/1491
摘要： An inductive power transmitter comprising: at least two switching elements connected across a resonant circuit, the resonant circuit including an inductance and a capacitance; wherein the transmitter is configured to adjust the value of the capacitance based on a desired operating frequency.

2. 发明授权

US06349048B2 Voltage converter circuit having a self-oscillating half-bridge structure 有权
标题翻译：具有自振荡半桥结构的电压转换器电路
公开(公告)号：US06349048B2
公开(公告)日：2002-02-19
申请号：US09747171
申请日：2000-12-21
申请人： Vincenzo Randazzo , Natale Aiello , Atanasio La Barbera
发明人： Vincenzo Randazzo , Natale Aiello , Atanasio La Barbera
IPC分类号： H02M75387
CPC分类号： H02M7/53862 , H02M3/3382 , H02M7/53832 , H02M7/53846 , H05B41/2828 , Y02B20/185
摘要： A voltage converter circuit with a self-oscillating half-bridge configuration has a first and a second input terminal, and a first and a second output terminal, and including: a first power switch coupled between the first input terminal and the first output terminal, a second power switch coupled between the first output terminal and the second input terminal, a first voltage sensor having a first and a second sensing terminals coupled between the first input terminal and a control terminal of the first power switch, and a second voltage sensor having a first and a second sensing terminals coupled between the first output terminal and a control terminal of the second power switch. Each voltage sensor detects a voltage variation supplied on its respective first sensing terminal and generates on the respective second sensing terminal an activation potential for the respective power switch.
摘要翻译：具有自振荡半桥结构的电压转换器电路具有第一和第二输入端以及第一和第二输出端，并且包括：耦合在第一输入端和第一输出端之间的第一功率开关，耦合在所述第一输出端子和所述第二输入端子之间的第二电源开关，具有耦合在所述第一输入端子和所述第一电源开关的控制端子之间的第一和第二感测端子的第一电压传感器，以及具有耦合在第一输出端子和第二电源开关的控制端子之间的第一和第二感测端子。每个电压传感器检测在其相应的第一感测端子上提供的电压变化，并在相应的第二感测端子上产生用于各个电力开关的激活电位。

3. 发明授权

US5729445A Regulated power supply unit with an electronic transformer 失效
标题翻译：具有电子变压器的稳压电源单元
公开(公告)号：US5729445A
公开(公告)日：1998-03-17
申请号：US687422
申请日：1996-09-06
申请人： Dieter Huelsmann
发明人： Dieter Huelsmann
IPC分类号： G05F1/13 , H02M5/293 , H02M7/5383 , H02M7/53846 , H05B39/04 , H02J3/00 , H02M3/24
CPC分类号： H02M7/53846 , G05F1/13 , H02M5/293 , H05B39/048 , Y02B20/148
摘要： A regulated power supply unit with an electronic transformer having an input for a transformer power supply voltage on the primary side, an output for an operating a.c. voltage with a higher-frequency component on the secondary side, and a control device with a variable resistor by means of which the operating a.c. voltage may be set. There is an inductive or capacitive separator component by means of which the higher-frequency component of the operating a.c. voltage can be separated out and taken as the input voltage to a first and a second rectifier circuit. The output voltage of the first rectifier circuit is applied to an amplifier-comparator circuit as its supply voltage. A reference generator circuit is connected to the first rectifier circuit and to the amplifier-comparator circuit. A reference for the operating a.c. voltage can be set by the reference generator circuit. An actual value is derived from the output voltage of the second rectifier circuit and taken to the amplifier-comparator circuit, at the output of which an error signal may be taken. A transistor constitutes the variable resistor and is controlled by the error signal from the amplifier-comparator circuit.
摘要翻译： PCT No.PCT / DE95 / 00149 Sec。 371日期1996年9月6日 102（e）1996年9月6日PCT PCT 1995年1月31日PCT公布。公开号WO95 / 21514 日期1995年8月10日具有电子变压器的稳压电源单元，其具有初级侧的变压器电源电压的输入，用于运行直流的输出。在次级侧具有较高频率分量的电压，以及具有可变电阻器的控制装置，通过该电阻可操作交流电。电压可以设定。有一个电感或电容分离器组件，通过该分量组件运行交流电的高频分量。电压可以分离出来并作为第一和第二整流电路的输入电压。第一整流电路的输出电压作为其电源电压施加到放大器 - 比较器电路。参考发生器电路连接到第一整流器电路和放大器 - 比较器电路。操作a.c.的参考。电压可由参考发生器电路设定。实际值是从第二整流电路的输出电压得出的，并被送到放大器 - 比较器电路，其输出端可以采用误差信号。晶体管构成可变电阻器，并由来自放大器 - 比较器电路的误差信号控制。

4. 发明授权

US5481160A Electronic ballast with FET bridge inverter 失效
标题翻译：电子镇流器与FET桥式逆变器
公开(公告)号：US5481160A
公开(公告)日：1996-01-02
申请号：US330605
申请日：1994-10-28
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 , H05B41/36
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 , Y02B20/185 , Y10S315/05
摘要： Controlled DC supply voltage is provided to a self-oscillating FET bridge inverter ballast from a pre-converter and by way of an inductor having two separate windings on a common magnetic core--with one winding being positioned in each leg of the DC supply. The inverter is loaded by way of a parallel-tuned L-C circuit connected across the bridge inverter's output, thereby providing a special AC output voltage thereat. This special AC output voltage is characterized in that it exhibits an unusually high rate of voltage change at its cross-over points but otherwise has a substantially sinusoidal waveshape. An instant-start fluorescent lamp is connected via a current-limiting capacitor across the bridge inverter's output. The magnitude of the DC supply voltage is so chosen as to cause the magnitude of the AC output voltage to be such as to effectuate proper instant-starting of the fluorescent lamp. Because the AC output voltage is balanced with respect to ground, U.L. requirements are met without the need for an isolation transformer. Each of the four FET's is driven by providing a sinusoidal AC voltage directly from a positive feedback winding on the tank-inductor of the L-C circuit.
摘要翻译：控制的直流电源电压从预转换器提供给自振荡FET桥式逆变器镇流器，并且通过在公共磁芯上具有两个独立绕组的电感器提供，其中一个绕组位于直流电源的每个支路中。逆变器通过并联调谐的L-C电路加载在桥式逆变器的输出端，从而在其上提供特殊的交流输出电压。这种特殊的交流输出电压的特征在于，其交叉点具有非常高的电压变化率，但是具有基本正弦波形。瞬时启动荧光灯通过一个限流电容器连接在桥式逆变器的输出端。 DC电源电压的大小被选择为使得AC输出电压的大小能够实现荧光灯的正确启动。因为交流输出电压相对于地平衡。满足要求，无需隔离变压器。通过从L-C电路的电容器上的正反馈绕组直接提供正弦交流电压来驱动四个FET中的每一个。

5. 发明授权

US5440209A Driven full-bridge inverter ballast 失效
标题翻译：驱动全桥逆变镇流器
公开(公告)号：US5440209A
公开(公告)日：1995-08-08
申请号：US115586
申请日：1993-09-03
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： H02M7/53862 , H02M7/53832 , H02M7/53835 , H02M7/53846 , H02M7/53873 , H03K3/30 , H05B41/245 , H05B41/28 , H05B41/2827 , H05B41/295 , H05B41/38 , H05B41/3925 , Y10S315/05
摘要： In an electronic ballast for Rapid-Start fluorescent lamps, each one of two of the four transistors in a full-bridge inverter is driven from a commercially available timer by way of simple diode-resistor parallel-combination. Each one of the other two transistors is driven directly from an auxiliary winding on the full-bridge inverter's power output transformer. The fluorescent lamps are series-connected with a current-limiting inductor to form a series-combination; which series-combination is connected across an output winding of the power output transformer. Heating voltage for each of the lamps' cathodes is obtained by way of two series-connected windings: one one the power output transformer and one on the current-limiting inductor. The magnitude of the resulting cathode heating voltage is substantially higher prior to lamp ignition as compared with after lamp ignition.
摘要翻译：在快速启动荧光灯的电子镇流器中，全桥逆变器中的四个晶体管中的两个中的每一个通过简单的二极管电阻器并联组合从市售的定时器驱动。其他两个晶体管中的每一个直接从全桥逆变器的功率输出变压器的辅助绕组驱动。荧光灯与限流电感器串联连接，形成串联组合; 哪个串联组合连接在电力输出变压器的输出绕组上。通过两个串联的绕组获得每个灯阴极的加热电压：一个是功率输出变压器，一个在限流电感上。与点灯后相比，所产生的阴极加热电压的大小明显高于灯点火之前。

6. 发明授权

US5424935A Power converter with a piezoelectric ceramic transformer 失效
标题翻译：具有压电陶瓷变压器的功率转换器
公开(公告)号：US5424935A
公开(公告)日：1995-06-13
申请号：US070850
申请日：1993-06-03
申请人： Donald B. C. Wu
发明人： Donald B. C. Wu
IPC分类号： H02M7/48 , H02M7/5383 , H02M7/53846 , H02M7/53862 , H02M7/538
CPC分类号： H02M7/53862 , H02M7/48 , H02M7/53846
摘要： A power convertor wherein a piezoelectric ceramic transformer generates a voltage, a resulting current passes through a load and a comparative voltage generator to generate a comparative voltage. The comparative voltage is amplified and compared to a standard voltage to obtain a control voltage. The control voltage is regulated to provide base potentials of a power amplifier. As a result, variations in a variable resistor will change the comparative voltage to obtain different output currents as required.
摘要翻译：一种功率转换器，其中压电陶瓷变压器产生电压，所得到的电流通过负载和比较电压发生器以产生比较电压。比较电压被放大并与标准电压进行比较以获得控制电压。调节控制电压以提供功率放大器的基极电位。结果，可变电阻器的变化将改变比较电压以根据需要获得不同的输出电流。

7. 发明授权

US5416386A Electronic ballast with controlled DC rail voltage 失效
标题翻译：具有受控直流轨电压的电子镇流器
公开(公告)号：US5416386A
公开(公告)日：1995-05-16
申请号：US63075
申请日：1993-05-10
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 , H05B41/36
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 pre-converter is connected with AC power line voltage and provides DC rail voltage to a current-fed self-oscillating FET bridge inverter ballast. The inverter is loaded by way of a parallel-tuned L-C circuit connected across the bridge inverter's output, thereby providing a sinusoidal AC output voltage thereat. Each of several instant-start fluorescent lamps is connected via a current-limiting capacitor across the bridge inverter's output. The magnitude of the DC supply voltage is so chosen as to cause the magnitude of the AC output voltage to be such as to effectuate proper instant-starting of the fluorescent lamps. Each of the four FET's is driven by a sinusoidal AC voltage derived directly from a positive feedback winding on the tank-inductor of the L-C circuit. To enhance circuit efficiency, the absolute magnitude of the DC rail voltage is controlled to be just higher than the peak absolute magnitude of the AC power line voltage.
摘要翻译：预转换器连接有交流电源线电压，并为电流馈入的自振荡FET桥式逆变镇流器提供直流电压。逆变器通过并联调谐的L-C电路加载在桥式逆变器的输出端，从而在其上提供正弦交流输出电压。几个瞬时启动荧光灯中的每一个都通过一个限流电容器连接在桥式逆变器的输出端。直流电源电压的大小被选择为使得AC输出电压的大小能够实现荧光灯的正确启动。四个FET中的每一个由直接由L-C电路的电容器上的正反馈绕组导出的正弦交流电压驱动。为了提高电路效率，将DC轨电压的绝对幅度控制为高于交流电源线电压的峰值绝对值。

8. 发明授权

US5343123A Series-resonant inverter ballast 失效
标题翻译：串联谐振逆变器镇流器
公开(公告)号：US5343123A
公开(公告)日：1994-08-30
申请号：US933891
申请日：1992-08-24
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 , H05B37/02
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 , Y02B20/185 , Y02B70/1441
摘要： A half-bridge inverter is powered from an ordinary electric utility power line by way of a full wave rectifier-filter means. The high frequency voltage output of the inverter is loaded with a series-combination of a tank inductor and a tank capacitor, with a fluorescent lamp being connected in parallel with the tank capacitor. The ON-time of each of the inverter's two transistors is shorter than half the period of the high frequency voltage; thereby preventing the two transistors from conducting simultaneously; thereby, in turn, protecting the inverter from self-destruction in case of lamp failure.
摘要翻译：半桥逆变器由普通电力公司的电力线通过全波整流滤波装置供电。逆变器的高频电压输出装载有一个串联电容器和一个储能电容器，荧光灯与电容器并联。逆变器两个晶体管的导通时间短于高频电压的一半; 从而防止两个晶体管同时导通; 从而反过来在灯失效的情况下保护逆变器免于自毁。

9. 发明授权

US5214355A Instant-start electronic ballast 失效
标题翻译：即时启动电子镇流器
公开(公告)号：US5214355A
公开(公告)日：1993-05-25
申请号：US806676
申请日：1991-12-13
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 , H05B41/295 , H05B41/38 , H05B41/392
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 , Y10S315/05
摘要： A half-bridge inverter is powered from a constant-magnitude DC supply voltage and provides at the inverter's output a first AC output voltage that is describable as a modified squarewave voltage. This first AC voltage is applied across a series-combination of a tank inductor and a tank capacitor, the junction between which is clamped to the DC supply voltage. As a result, a second AC voltage gets established across the tank capacitor; which second AC voltage is also describable as a modified squarewave voltage. However, the phasing of the second AC voltage is delayed by roughly 90.degree. degrees with respect to the first AC voltage; which results in the voltage across the tank inductor being of approximately sinusoidal waveform. A first and a second fluorescent lamp is connected in series with a first and a second ballast capacitor, respectively; and the two lamp-capacitor series-combinations are parallel-connected across the inductor, thereby resulting in an approximately sinusoidal current being provided to the lamps. To provide for enhanced instant-start lamp ignition, an auxiliary capacitor is connected across the tank capacitor for the initial 100 milli-seconds; which has the effect of providing more power to the lamps during the brief ignition period.
摘要翻译：半桥逆变器由恒定直流电源电压供电，并在变频器的输出端提供可被描述为改进的方波电压的第一交流输出电压。该第一交流电压被施加在一个串联电容器和一个储能电容器的组合之间，其结点被钳位到直流电源电压。结果，在电容器两端建立了第二个交流电压; 该第二交流电压也可被描述为改进的方波电压。然而，第二交流电压的相位相对于第一交流电压延迟大约90度; 这导致电容器两端的电压大致为正弦波形。第一和第二荧光灯分别与第一和第二镇流电容器串联连接; 并且两个灯电容器串联组合在电感器两端并联连接，从而导致近似正弦电流被提供给灯。为了提供增强的即时启动灯点火，辅助电容器连接在电容器两端，最初为100毫秒; 其具有在短时间内向灯提供更多功率的效果。

10. 发明授权

US5185560A Electronic fluorescent lamp ballast 失效
标题翻译：电子荧光灯镇流器
公开(公告)号：US5185560A
公开(公告)日：1993-02-09
申请号：US663566
申请日：1991-03-04
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
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 , Y10S315/07
摘要： A half-bridge inverter is powered from a constant-magnitude DC supply voltage and provides at the inverter's output a first AC output voltage that is describable as a modified squarewave voltage. This first AC voltage is applied across a series-combination of an inductor and a capacitor, the junction between which is clamped to the DC supply voltage. As a result, a second AC voltage gets established across the capacitor; which second AC voltae is also describable as being a modified squarewave voltage. However, the phasing of the second AC voltage is delayed by approximately 90 degrees with respect to the first AC voltage; which results in the voltage across the inductor being of approximately sinuosidal waveform. A fluorescent lamp is connected in series with a ballast capacitor; and the lamp-capacitor series combination is connected across the inductor, thereby reslting in a nearly sinusoidal current being provided to the fluorescent lamp.
摘要翻译：半桥逆变器由恒定直流电源电压供电，并在变频器的输出端提供可被描述为改进的方波电压的第一交流输出电压。该第一交流电压被施加在电感器和电容器的串联组合上，其结点被钳位到直流电源电压。结果，跨越电容器建立了第二交流电压; 该第二AC电压也可被描述为改进的方波电压。然而，相对于第一AC电压，第二AC电压的定相延迟大约90度; 这导致电感器两端的电压大致为正弦波形。荧光灯与镇流电容串联; 并且灯电容器串联组合被连接在电感器两端，由此被提供给荧光灯的几乎正弦电流的电涌。

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