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公开(公告)号：US20090146575A1
公开(公告)日：2009-06-11
申请号：US11951293
申请日：2007-12-05
Applicant: Yi-Shan Chu , Hsing-Kuo Chao
Inventor： Yi-Shan Chu , Hsing-Kuo Chao
IPC: H05B41/24
CPC classification number: H05B33/0815 , Y02B20/348
Abstract: A light emitting diode (LED) driving device includes a power factor correction (PFC) circuit, a bridge switch circuit, a resonant circuit, a transformer and a feedback circuit. The PFC circuit adjusts an output signal thereof based on a feedback signal. The bridge switch circuit transforms the output signal of the PFC circuit into a pulse signal. The resonant circuit resonates and outputs a sinusoidal signal to a primary-side of the transformer based on the pulse signal. The feedback circuit outputs the feedback signal to the PFC circuit in response to a primary-side current of the transformer. Therefore, an output current of the LED driving device is adjusted through modulating the feedback circuit.
Abstract translation: 发光二极管（LED）驱动装置包括功率因数校正（PFC）电路，桥式开关电路，谐振电路，变压器和反馈电路。 PFC电路基于反馈信号调整其输出信号。 桥式开关电路将PFC电路的输出信号变换为脉冲信号。 谐振电路基于脉冲信号谐振并将正弦信号输出到变压器的初级侧。 反馈电路响应于变压器的初级侧电流将反馈信号输出到PFC电路。 因此，通过调制反馈电路来调节LED驱动装置的输出电流。
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公开(公告)号：US20090091950A1
公开(公告)日：2009-04-09
申请号：US11867009
申请日：2007-10-04
Applicant: Hsing-Kuo Chao , Yi-Shan Chu , Yu-Chuan Liu
Inventor： Hsing-Kuo Chao , Yi-Shan Chu , Yu-Chuan Liu
IPC: H02M3/00
CPC classification number: H02M3/155 , H05B33/0815 , H05B33/0887 , Y02B20/341
Abstract: A power converting circuit with an open load protection function is electrically connected to a power supply providing a first voltage level, and outputs a second voltage level to drive a load. The power converting circuit includes a DC/DC converter and a rectifying element disposed between an output node and an input node of the DC/DC converter that forms a discharging loop with the DC/DC converter. The DC/DC converter receives the power, converts the first voltage level into the second voltage level and outputs the second voltage level to the load. The rectifying element is utilized to release a surge voltage produced by the DC/DC converter in an open load condition.
Abstract translation: 具有开路负载保护功能的电力转换电路电连接到提供第一电压电平的电源，并输出第二电压电平以驱动负载。 功率转换电路包括DC / DC转换器和设置在DC / DC转换器的输出节点和输入节点之间的整流元件，其与DC / DC转换器形成放电环路。 DC / DC转换器接收电力，将第一电压电平转换成第二电压电平，并将第二电压电平输出到负载。 整流元件用于在开路负载条件下释放由DC / DC转换器产生的浪涌电压。
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公开(公告)号：US06788005B2
公开(公告)日：2004-09-07
申请号：US10076428
申请日：2002-02-19
Applicant: Yi-Shan Chu , Cheng-Chia Hsu
Inventor： Yi-Shan Chu , Cheng-Chia Hsu
IPC: H05B3700
CPC classification number: H05B41/2824
Abstract: An inverter for igniting a discharge lamp comprises a transformer, a first switch transistor, a second switch transistor, a first snubber capacitor, a second snubber capacitor, a reset capacitor, and a control circuit. One of the source/drain of the first switch transistor is electrically coupled to the primary side of the transformer. One of the source/drain of the second switch transistor is electrically coupled to the primary side of the transformer. The first snubber capacitor is electrically coupled between the source and the drain of the first switch transistor. The second snubber capacitor is electrically coupled between the source and the drain of the second switch transistor. The reset capacitor is electrically coupled between the other of the source/drain of the first switch transistor and the other of the source/drain of the second switch transistor. The control circuit controls the first switch transistor and the second switch transistor so that the two transistors will not conduct at the same time.
Abstract translation: 用于点燃放电灯的逆变器包括变压器，第一开关晶体管，第二开关晶体管，第一缓冲电容器，第二缓冲电容器，复位电容器和控制电路。 第一开关晶体管的源/漏之一电耦合到变压器的初级侧。 第二开关晶体管的源极/漏极之一电耦合到变压器的初级侧。 第一缓冲电容器电耦合在第一开关晶体管的源极和漏极之间。 第二缓冲电容器电耦合在第二开关晶体管的源极和漏极之间。 复位电容器电耦合在第一开关晶体管的源极/漏极中的另一个和第二开关晶体管的源极/漏极中的另一个之间。 控制电路控制第一开关晶体管和第二开关晶体管，使得两个晶体管不会同时导通。
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24.发明申请公开(公告)号：US20110032024A1
公开(公告)日：2011-02-10
申请号：US12536473
申请日：2009-08-05
Applicant: Ren-Yi Chen , Yi-Lun Shen , Yi-Shan Chu
Inventor： Ren-Yi Chen , Yi-Lun Shen , Yi-Shan Chu
IPC: H03H11/40
CPC classification number: H03K17/687 , H03K19/1732 , H03K2217/0036 , H05B33/0815 , Y02B20/346
Abstract: An integrated circuit and a related method for determining an operation mode are disclosed. The exemplified integrated circuit includes a controller, a multi-function pin, and a mode determination circuit. The controller controls a power switch and is being set to operate in one of the operation modes including a first operation mode and a second operation mode. The multi-function pin is connected to an external resistor. The mode determination circuit detects a signal from the multi-function pin. The signal represents the resistance of the external resistor. If the resistance is within a first range, the controller is operated in the first operation mode. If the resistance is within a second range, the controller is operated in the second operation mode.
Abstract translation: 公开了用于确定操作模式的集成电路和相关方法。 示例性集成电路包括控制器，多功能引脚和模式确定电路。 控制器控制电源开关并被设置为在包括第一操作模式和第二操作模式的操作模式之一中操作。 多功能引脚连接到外部电阻。 模式确定电路检测来自多功能引脚的信号。 该信号表示外部电阻的电阻。 如果电阻在第一范围内，则控制器在第一操作模式下操作。 如果电阻在第二范围内，则控制器在第二操作模式下操作。
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25.发明申请公开(公告)号：US20090128209A1
公开(公告)日：2009-05-21
申请号：US11942720
申请日：2007-11-20
Applicant: Yi-Shan Chu , Yu-Bin Wang , Hsing-Kuo Chao
Inventor： Yi-Shan Chu , Yu-Bin Wang , Hsing-Kuo Chao
CPC classification number: H03K7/08
Abstract: A pulse width modulation (PWM) control circuit is applied to a power converter with a charging capacitor. The PWM control circuit includes a PWM signal generator, a first comparator, and a reference voltage modulator. A PWM signal generator generates a PWM signal to control a power switch in the power converter. Two input terminals of the first comparator respectively receive a first reference voltage and a sensing voltage, which is proportional to a primary-side current of a transformer. When the power switch is turned on and the sensing voltage rises to the level of the first reference voltage, the first comparator outputs a first control signal to the PWM signal generator. Then, the PWM signal generator outputs a signal to turn off the power switch. The reference voltage modulator outputs the first reference voltage according to a feedback voltage relative to the output voltage of the power converter.
Abstract translation: 脉冲宽度调制（PWM）控制电路应用于具有充电电容器的功率转换器。 PWM控制电路包括PWM信号发生器，第一比较器和参考电压调制器。 PWM信号发生器产生PWM信号以控制功率转换器中的电源开关。 第一比较器的两个输入端子分别接收与变压器初级侧电流成比例的第一参考电压和感测电压。 当电源开关接通并且感测电压上升到第一参考电压的电平时，第一比较器向PWM信号发生器输出第一控制信号。 然后，PWM信号发生器输出信号以关闭电源开关。 参考电压调制器根据相对于功率转换器的输出电压的反馈电压输出第一参考电压。
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Patent Agency Ranking
公开(公告)号：US20050040793A1
公开(公告)日：2005-02-24
申请号：US10644837
申请日：2003-08-21
Applicant: Yuan-Wen Chang , Yi-Shan Chu
Inventor： Yuan-Wen Chang , Yi-Shan Chu
CPC classification number: H02J7/345
Abstract: A capacitance charge device with adjustable clamping voltage is disclosed in the invention, which includes a high-farad capacitance and a power supply device for charging to the high-farad capacitance. In addition, a switch device is connected between the power supply device and the capacitance, and through the on/off operations of the switch device, the on/off conductions between the power supply device and the capacitance can be controlled. Besides, a clamping circuit is connected between the switch device and the capacitance and also connected to the output terminal of the power supply device. In addition, the clamping circuit has a clamping voltage, which can be compared with the actual voltage so as to control the on/off operations of the switch device and in turn control the on/off conductions between the power supply device and the capacitance. In addition, the invention can constrain the battery voltage in the clamping voltage of the clamping circuit. By doing so, the system can be ensured not to be down because of a sudden tremendous voltage drop of the battery, and the clamping voltage is adjustable according to the variations in product design.
Abstract translation: 本发明公开了具有可调节钳位电压的电容充电装置，其包括高法拉电容和用于对高法拉电容充电的电源装置。 此外，开关装置连接在电源装置和电容之间，并且通过开关装置的开/关操作，可以控制电源装置和电容之间的导通/截止导通。 此外，钳位电路连接在开关器件和电容之间，并且还连接到电源装置的输出端子。 此外，钳位电路具有钳位电压，其可以与实际电压进行比较，以便控制开关器件的导通/截止操作，从而控制电源装置和电容之间的导通/截止电导。 此外，本发明可以限制钳位电路的钳位电压中的电池电压。 通过这样做，由于电池的突然的巨大的电压下降，可以确保系统不会下降，并且根据产品设计的变化可以调节钳位电压。
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公开(公告)号：US08797013B2
公开(公告)日：2014-08-05
申请号：US13078005
申请日：2011-04-01
Applicant: Hsing-Kuo Chao , Yi-Shan Chu
Inventor： Hsing-Kuo Chao , Yi-Shan Chu
CPC classification number: H02M3/155 , H02M2001/0029
Abstract: An adaptive slope-compensation method is applied for a switch-mode power supply. The switch-mode power supply has a power switch, and an inductor coupled to an input power. The power switch controls the inductor storing energy or releasing energy to generate an output voltage. The adaptive slope-compensation method includes detecting an inductor current passing through the inductor and to generate an inductor-current detecting voltage, detecting a duty cycle of the power switch, detecting a voltage variation of the inductor-current detecting voltage when the power switch is turned on, generating a slope-compensation signal according to the voltage variation and the duty cycle, and adjusting the timing of turning the power switch on or off. In this way, even if the operation conditions of the input power and the output voltage change, the system still can quickly response and does not generate sub-harmonic oscillation.
Abstract translation: 自适应斜率补偿方法适用于开关电源。 开关电源具有电源开关和耦合到输入电源的电感器。 电源开关控制电感器存储能量或释放能量以产生输出电压。 自适应斜率补偿方法包括检测通过电感器的电感电流并产生电感电流检测电压，检测电源开关的占空比，检测电源电流检测电压的电压变化，当电源开关为 导通，根据电压变化和占空比产生斜率补偿信号，并调节打开或关闭电源开关的时间。 这样，即使输入电源和输出电压的运行条件发生变化，系统仍能快速响应，不会产生次谐波振荡。
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28.发明授权公开(公告)号：US08247981B2
公开(公告)日：2012-08-21
申请号：US12536473
申请日：2009-08-05
Applicant: Ren-Yi Chen , Yi-Lun Shen , Yi-Shan Chu
Inventor： Ren-Yi Chen , Yi-Lun Shen , Yi-Shan Chu
CPC classification number: H03K17/687 , H03K19/1732 , H03K2217/0036 , H05B33/0815 , Y02B20/346
Abstract: An integrated circuit and a related method for determining an operation mode are disclosed. The exemplified integrated circuit includes a controller, a multi-function pin, and a mode determination circuit. The controller controls a power switch and is being set to operate in one of the operation modes including a first operation mode and a second operation mode. The multi-function pin is connected to an external resistor. The mode determination circuit detects a signal from the multi-function pin. The signal represents the resistance of the external resistor. If the resistance is within a first range, the controller is operated in the first operation mode. If the resistance is within a second range, the controller is operated in the second operation mode.
Abstract translation: 公开了用于确定操作模式的集成电路和相关方法。 示例性集成电路包括控制器，多功能引脚和模式确定电路。 控制器控制电源开关并被设置为在包括第一操作模式和第二操作模式的操作模式之一中操作。 多功能引脚连接到外部电阻。 模式确定电路检测来自多功能引脚的信号。 该信号表示外部电阻的电阻。 如果电阻在第一范围内，则控制器在第一操作模式下操作。 如果电阻在第二范围内，则控制器在第二操作模式下操作。
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公开(公告)号：US20120159207A1
公开(公告)日：2012-06-21
申请号：US13326329
申请日：2011-12-15
Applicant: Hsing-Kuo Chao , Yi-Shan Chu
Inventor： Hsing-Kuo Chao , Yi-Shan Chu
IPC: G06F1/26
CPC classification number: G06F1/3275 , G06F1/3296 , Y02D10/13 , Y02D10/14 , Y02D10/172
Abstract: A power management device of an SD memory card reader includes a power supply regulator and a controller. The controller controls the power supply regulator to provide a memory card voltage according to an external control signal transmitted from a single control pin. Wherein when the external control signal denotes an enable state, the power supply regulator provides the memory card voltage; when the external control signal denotes a disable state, the power supply regulator stops providing the memory card voltage and discharges the load capacitor; and when the external control signal returns to the enable state from the disable state in a predetermined duration, the power supply regulator changes the memory card voltage.
Abstract translation: SD存储卡读卡器的电源管理装置包括电源调节器和控制器。 控制器控制电源调节器，根据从单个控制引脚传输的外部控制信号提供存储卡电压。 其中当外部控制信号表示使能状态时，电源调节器提供存储卡电压; 当外部控制信号表示禁用状态时，电源调节器停止提供存储卡电压并放电负载电容器; 并且当外部控制信号在预定持续时间内从禁用状态返回到使能状态时，电源调节器改变存储卡电压。
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30.发明授权公开(公告)号：US07961481B2
公开(公告)日：2011-06-14
申请号：US11942720
申请日：2007-11-20
Applicant: Yi-Shan Chu , Yu-Bin Wang , Hsing-Kuo Chao
Inventor： Yi-Shan Chu , Yu-Bin Wang , Hsing-Kuo Chao
IPC: H02M3/335
CPC classification number: H03K7/08
Abstract: A pulse width modulation (PWM) control circuit is applied to a power converter with a charging capacitor. The PWM control circuit includes a PWM signal generator, a first comparator, and a reference voltage modulator. A PWM signal generator generates a PWM signal to control a power switch in the power converter. Two input terminals of the first comparator respectively receive a first reference voltage and a sensing voltage, which is proportional to a primary-side current of a transformer. When the power switch is turned on and the sensing voltage rises to the level of the first reference voltage, the first comparator outputs a first control signal to the PWM signal generator. Then, the PWM signal generator outputs a signal to turn off the power switch. The reference voltage modulator outputs the first reference voltage according to a feedback voltage relative to the output voltage of the power converter.
Abstract translation: 脉冲宽度调制（PWM）控制电路应用于具有充电电容器的功率转换器。 PWM控制电路包括PWM信号发生器，第一比较器和参考电压调制器。 PWM信号发生器产生PWM信号以控制功率转换器中的电源开关。 第一比较器的两个输入端子分别接收与变压器初级侧电流成比例的第一参考电压和感测电压。 当电源开关接通并且感测电压上升到第一参考电压的电平时，第一比较器向PWM信号发生器输出第一控制信号。 然后，PWM信号发生器输出信号以关闭电源开关。 参考电压调制器根据相对于功率转换器的输出电压的反馈电压输出第一参考电压。
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