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1. 发明申请

US20080036391A1 Half bridge inverter 失效
公开(公告)号：US20080036391A1
公开(公告)日：2008-02-14
申请号：US11500899
申请日：2006-08-09
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H05B41/24
CPC分类号： H05B41/2828
摘要： A half bridge inverter includes a push/pull control chip outputting a first control signal and a second control signal. Each duty cycle of the two control signals is smaller than 50%. Moreover, both a first buffer circuit and a second buffer circuit are coupled to the push/pull control chip. A driver couples to the first buffer circuit through the push/pull control chip and couples to a DC power for receiving the first control signal. A half bridge switch assembly with two N-MOSes couples to the DC power, the driver, the second buffer circuit and a transformer, and converts the DC power into an AC power by the driver. The AC power is transmitted to a first side of the transformer.

2. 发明授权

US07301430B1 High voltage transformer for controlling inductance leakage 失效
标题翻译：用于控制电感泄漏的高压变压器
公开(公告)号：US07301430B1
公开(公告)日：2007-11-27
申请号：US11434159
申请日：2006-05-16
申请人： Chun-Kong Chan , Jeng-Shong Wang , Jin-Jiun Jiang , Chi-Ming Yang
发明人： Chun-Kong Chan , Jeng-Shong Wang , Jin-Jiun Jiang , Chi-Ming Yang
IPC分类号： H01F5/00
CPC分类号： H01F38/10
摘要： A high voltage transformer for controlling inductance leakage used for a multiple lamp driving system includes at least one wire frame, a first winding, a second winding, a first magnetic unit, and a second magnetic unit. There is a receiving space in the wire frame for receiving the first magnetic unit, and a first region and a second region is formed on its surface. The first winding and the second winding are individually wound at the first region and the second region. The second magnetic unit is covered on the side of the wire frame. On an appropriate location of the bottom of the second magnetic unit, a transverse beam extends. Thereby, the transverse beam fully separates the low voltage magnetic flux path produced on the first magnetic unit by the first winding and the second winding and the high voltage magnetic flux path produced by the AC.
摘要翻译：用于控制用于多灯驱动系统的电感泄漏的高压变压器包括至少一个线架，第一绕组，第二绕组，第一磁单元和第二磁单元。在线框架中具有用于接收第一磁性单元的接收空间，并且在其表面上形成第一区域和第二区域。第一绕组和第二绕组在第一区域和第二区域单独地卷绕。第二磁性单元被覆盖在线框架的侧面上。在第二磁性单元的底部的适当位置，横梁延伸。由此，横梁通过第一绕组和第二绕组以及由AC产生的高压磁通路完全分离在第一磁性单元上产生的低压磁通路径。

3. 发明申请

US20060050542A1 Circuit making use of push/pull-type control chip to drive half bridge-type inverter circuit 失效
标题翻译：电路采用推/拉式控制芯片驱动半桥式逆变电路
公开(公告)号：US20060050542A1
公开(公告)日：2006-03-09
申请号：US10935128
申请日：2004-09-08
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H02M3/24
CPC分类号： H02M1/08 , H02M3/337 , H05B41/2828
摘要： A circuit making use of a push/pull-type control chip to drive a half bridge-type inverter circuit connects a drive circuit to a conventional half bridge-type inverter circuit, and has a push/pull-type control chip having two output terminals, a drive circuit having two input terminals and two output terminals, and a half bridge-type switch assembly having two electronic switches. The two input terminals of the drive circuit are connected with the two output terminals of the push/pull-type control chip and controlled by the push/pull-type control chip. Each of the two electronic switches of the half bridge-type switch assembly has a control terminal, which is connected to one of the two output terminals of the drive circuit and driven by the drive circuit for converting a DC power source into an AC power source sent to the primary side of a transformer.
摘要翻译：利用推/拉式控制芯片驱动半桥式逆变器电路的电路将驱动电路连接到传统的半桥式逆变器电路，并具有具有两个输出端子的推/拉式控制芯片具有两个输入端和两个输出端的驱动电路和具有两个电子开关的半桥式开关组件。驱动电路的两个输入端子与推/拉式控制芯片的两个输出端子连接，并由推/拉式控制芯片控制。半桥式开关组件的两个电子开关中的每一个具有控制端子，该控制端子连接到驱动电路的两个输出端子中的一个，并由用于将直流电源转换成AC电源的驱动电路驱动发送到变压器的初级侧。

4. 发明申请

US20050270133A1 Transformer structure 审中-公开
标题翻译：变压器结构
公开(公告)号：US20050270133A1
公开(公告)日：2005-12-08
申请号：US10862386
申请日：2004-06-08
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H01F3/10 , H01F3/12 , H01F27/24 , H01F27/255 , H01F38/10
CPC分类号： H01F38/10 , H01F3/10 , H01F3/12 , H01F27/255
摘要： An improved transformer structure has a low-voltage side coil, two high-voltage side coils, two E-shaped magnetic cores and a C-shaped magnetic core. The two E-shaped magnetic cores and the C-shaped magnetic core are assembled with the low-voltage side coil and the two high-voltage side coils, respectively. Through the C-shaped magnetic core, when a short circuit occurs in the high-voltage side coil of the transformer, power conversion of the low-voltage side coil is not affected, hence accomplishing short-circuit protection of the transformer. Moreover, the counter magnetomotive force generated at the low-voltage side coil of the transformer can be reduced through the C-shaped magnetic core, hence protecting the low-voltage side coil and also decreasing heat generated by the transformer.
摘要翻译：改进的变压器结构具有低压侧线圈，两个高压侧线圈，两个E形磁芯和C形磁芯。两个E形磁芯和C形磁芯分别与低压侧线圈和两个高压侧线圈组装。通过C形磁芯，当变压器的高压侧线圈发生短路时，低压侧线圈的功率转换不受影响，从而实现变压器的短路保护。此外，通过C形磁芯可以减小在变压器的低压侧线圈处产生的计数磁动势，从而保护低压侧线圈并减少由变压器产生的热量。

5. 发明申请

US20080191635A1 Multi-lamp backlight module 审中-公开
标题翻译：多灯背光模组
公开(公告)号：US20080191635A1
公开(公告)日：2008-08-14
申请号：US11703630
申请日：2007-02-08
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H05B37/02
CPC分类号： H05B41/282 , Y02B20/183
摘要： A multi-lamp backlight module integrates the capacitors into a circuit board, and the circuit board is located on the liquid crystal display panel. The backlight module includes a driving unit having a driving transformer, and a backlight unit. The driving transformer provides two output terminals. The backlight unit includes a circuit board and at least one CCFL. The circuit board is located at the liquid crystal display panel. The circuit board has at least one capacitor, and first ends of the capacitors are commonly connected with one output terminal of the driving transformer. The CCFLs are located on a back side of the liquid crystal display panel. First ends of the CCFLs are commonly connected with another output terminal of the driving transformer, and second ends of the CCFLs are respectively connected with the second ends of the capacitors.
摘要翻译：多灯背光模块将电容器集成到电路板中，电路板位于液晶显示面板上。背光模块包括具有驱动变压器的驱动单元和背光单元。驱动变压器提供两个输出端子。背光单元包括电路板和至少一个CCFL。电路板位于液晶显示面板。电路板具有至少一个电容器，并且电容器的第一端通常与驱动变压器的一个输出端连接。 CCFL位于液晶显示面板的背面。 CCFL的第一端通常与驱动变压器的另一输出端连接，CCFL的第二端分别与电容器的第二端相连。

6. 发明申请

US20080043505A1 HALF BRIDGE INVERTER WITH DUAL N-MOS 失效
标题翻译：具有双N-MOS的半桥式逆变器
公开(公告)号：US20080043505A1
公开(公告)日：2008-02-21
申请号：US11504604
申请日：2006-08-16
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H02M7/5387
CPC分类号： H02M7/538 , H03K17/04123 , H03K17/6871 , H03K17/72 , H03K17/785
摘要： A half bridge inverter with dual N-MOS includes a push/pull control chip outputting a first control signal with a duty cycle greater than 50% and a second control signal with a duty cycle greater than 50%. Moreover, both a first buffer circuit and a second buffer circuit are coupled to the push/pull control chip. A driver couples to the push/pull control chip through the first buffer circuit for receiving the first control signal, and couples to a DC power. A half bridge switch assembly with two N-MOSes couples to the DC power, the driver, the second buffer circuit and a transformer, and converts the DC power into an AC power by the driver. The AC power is transmitted to a first side of the transformer.
摘要翻译：具有双N-MOS的半桥逆变器包括输出占空比大于50％的第一控制信号和占空比大于50％的第二控制信号的推/拉控制芯片。此外，第一缓冲电路和第二缓冲电路都耦合到推/拉控制芯片。驱动器通过第一缓冲电路耦合到推/拉控制芯片，用于接收第一控制信号，并耦合到DC电源。具有两个N-MOS的半桥开关组件耦合到DC电力，驱动器，第二缓冲电路和变压器，并且由驱动器将DC电力转换成AC电力。交流电源传输到变压器的第一侧。

7. 发明授权

US07256553B1 Lamp driving system controlled by electrical isolation 有权
标题翻译：灯驱动系统由电气隔离控制
公开(公告)号：US07256553B1
公开(公告)日：2007-08-14
申请号：US11517381
申请日：2006-09-08
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H05B37/02
CPC分类号： H05B41/2828 , Y02B20/186
摘要： A lamp driving system controlled by electrical isolating is provided. The front-end power stage and the back-end power stage of the lamp driving system are electrically isolated each other by an electrical isolator. The lamp driving system includes a PFC controller for outputting a high voltage into a switching circuit. The switching circuit outputs a lamp driving voltage into the primary side of a boost transformer. A loading resonant network couples to the secondary side of the boost transformer, and generates a feedback signal. There are having the primary side of the electrical isolator, the PFC controller, the switching circuit and boost transformer coupled to a primary ground end. The PFC controller, the loading resonant network and the secondary side of the electrical isolator are coupled to a secondary ground end.
摘要翻译：提供了通过电隔离控制的灯驱动系统。灯驱动系统的前端功率级和后端功率级通过电隔离器彼此电隔离。灯驱动系统包括用于将高电压输出到开关电路中的PFC控制器。开关电路将灯驱动电压输出到升压变压器的初级侧。加载谐振网络耦合到升压变压器的次级侧，并产生反馈信号。具有电隔离器的初级侧，PFC控制器，开关电路和升压变压器耦合到主接地端。 PFC控制器，负载谐振网络和电隔离器的次级侧耦合到次级接地端。

8. 发明申请

US20070152929A1 Device and method for generating synchronous double-frequency signal 审中-公开
标题翻译：用于产生同步双频信号的装置和方法
公开(公告)号：US20070152929A1
公开(公告)日：2007-07-05
申请号：US11320719
申请日：2005-12-30
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , H05B41/3925 , H05B41/3927
摘要： A synchronous double-frequency signal generating device includes an integration switching unit controlled by a scan synchronous signal; a first integration unit connected to the integration switching unit for outputting a first integration signal when the scan synchronous signal is at high level; a second integration unit connected to the integration switching unit for outputting a second integration signal when the scan synchronous signal is at low level; an addition unit connected to the first integration unit and the second integration unit for adding up the first integration signal and the second integration signal so as to output a double-frequency modulation signal; and a comparison unit connected to the addition unit for comparing the double-frequency modulation signal with a reference signal so as to output the synchronous double-frequency signal.
摘要翻译：同步双频信号发生装置包括由扫描同步信号控制的积分切换单元; 连接到积分切换单元的第一积分单元，用于当扫描同步信号处于高电平时输出第一积分信号; 连接到积分切换单元的第二积分单元，用于当扫描同步信号处于低电平时输出第二积分信号; 连接到第一积分单元的加法单元和用于将第一积分信号和第二积分信号相加的第二积分单元，以输出双频调制信号; 以及比较单元，连接到加法单元，用于将双频调制信号与参考信号进行比较，以输出同步双频信号。

9. 发明申请

US20070139152A1 Balanced transformer having an auxiliary coil 审中-公开
标题翻译：具有辅助线圈的平衡变压器
公开(公告)号：US20070139152A1
公开(公告)日：2007-06-21
申请号：US11312737
申请日：2005-12-21
申请人： Chun-Kong Chan , Jeng-Shong Wang , Chi-Ming Yang , Jin-Jiun Jiang
发明人： Chun-Kong Chan , Jeng-Shong Wang , Chi-Ming Yang , Jin-Jiun Jiang
IPC分类号： H01F27/30
CPC分类号： H01F27/326 , H01F27/38 , H01F2005/022 , H01F2005/043 , H01F2005/046
摘要： A balanced transformer having an auxiliary coil has a bobbin, a balanced coil set, a detective coil, and an iron core set. The balanced coil set and the detective coil is wound onto the bobbin. The iron core set penetrates through the bobbin. The balanced transformer can be used in a driving circuit of a backlight module of an LCD device. The balanced coil set is electrically connected to CCFLs of the backlight module. The detective coil is electrically connected to a protection circuit of the backlight module. When currents respectively passing through the CCFLs are not equal to each other, two ends of the detective coil induct a voltage to form a protection feedback signal transmitted to the protection circuit. Therefore, the balanced transformer is capable of detecting an unusual current, so as to further protect the balanced transformer and the driving circuit of the backlight module.
摘要翻译：具有辅助线圈的平衡变压器具有绕线管，平衡线圈组，检测线圈和铁芯组。平衡线圈组和检测线圈缠绕在线轴上。铁芯套穿透线轴。平衡变压器可以用在LCD装置的背光模块的驱动电路中。平衡线圈组电连接到背光模块的CCFL。检测线圈电连接到背光模块的保护电路。当分别通过CCFL的电流彼此不相等时，检测线圈的两端感应电压，形成传输到保护电路的保护反馈信号。因此，平衡变压器能够检测异常电流，从而进一步保护背光模块的平衡变压器和驱动电路。

10. 发明授权

US07064588B2 Half-bridge inverter of dual N-MOS with a push/pull control chip 失效
标题翻译：具有推/拉控制芯片的双N-MOS半桥逆变器
公开(公告)号：US07064588B2
公开(公告)日：2006-06-20
申请号：US10959148
申请日：2004-10-07
申请人： Chun-Kong Chan , Jeng-Shong Wang
发明人： Chun-Kong Chan , Jeng-Shong Wang
IPC分类号： H03B1/00 , H03K3/00
CPC分类号： H02M3/3378
摘要： A circuit making use of a push/pull-type control chip to drive a half-bridge inverter of dual N-MOS connects a drive circuit to a conventional half-bridge inverter circuit, and has a push/pull-type control chip having two output terminals, a drive circuit having two input terminals and two output terminals, and a half-bridge switch assembly having a first N-MOS FET and a second N-MOS FET. The two input terminals of the drive circuit are connected with the two output terminals of the push/pull control chip and controlled by the push/pull-type control chip. Each of the two N-MOS FETs of the half-bridge switch assembly has a control terminal, which is connected to one of the two output terminals of the drive circuit and driven by the drive circuit for converting a DC power source into an AC power source sent to the primary side of a transformer.
摘要翻译：利用推/拉式控制芯片驱动双N-MOS半桥逆变器的电路将驱动电路连接到传统的半桥逆变电路，并具有一个推/拉式控制芯片，具有两个输出端子，具有两个输入端子和两个输出端子的驱动电路以及具有第一N-MOS FET和第二N-MOS FET的半桥开关组件。驱动电路的两个输入端子与推/拉控制芯片的两个输出端子连接，并由推/拉式控制芯片控制。半桥开关组件的两个N-MOS FET中的每一个具有控制端子，该控制端子连接到驱动电路的两个输出端子中的一个并被驱动电路驱动，用于将DC电源转换成AC电力源发送到变压器的初级侧。

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