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公开(公告)号：US10164513B1
公开(公告)日：2018-12-25
申请号：US16104910
申请日：2018-08-19
Applicant: INNO-TECH CO., LTD.
Inventor： Chih-Feng Lin , Shu-Chia Lin , Ching-Yuan Lin , Wen-Yueh Hsieh
Abstract: Disclosed is a method of acquiring input and output voltage information by employing a pulse width modulation (PWM) controller, which is in collocation with an input power processing unit, a primary inductor, a switch element, a current-sensing resistor, an output rectifier, and an output filter for converting an alternating current input power into an rectified input power and an output power, and the output power supplies an external load. A current-sensing signal is specifically disposed and applied to calculation of the input voltage and output voltage of the rectified input power when the switch element is turned on and off, respectively. Thus, no resistive voltage divider is needed, and power consumption at no load is greatly improved.
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公开(公告)号：US20170346405A1
公开(公告)日：2017-11-30
申请号：US15164939
申请日：2016-05-26
Applicant: INNO-TECH CO., LTD.
Inventor： Ching-Yuan Lin , Shu-Chia Lin , Wen-Yueh Hsieh , Chih Feng Lin
CPC classification number: H02M3/33515 , H02M1/08 , H02M3/33507 , H02M2001/0009 , H02M2001/0032 , H02M2001/0054 , Y02B70/1433 , Y02B70/1491 , Y02B70/16
Abstract: Disclosed is a dual-mode operation controller in collocation with an input capacitor, a flyback transformer, a first primary-side switch, a second primary-side switch, a current-sensing resistor, a primary-side voltage-sensing unit, a secondary-side rectifier, and an output capacitor as a Primary-Side Regulation (PSR) flyback converter, which is dynamically controlled to operate in two operating modes, including Quasi-Resonant-Discontinuous Conduction Mode (QR-DCM) and Continuous Conduction Mode (CCM), in accordance with a loading condition so as to convert a unregulated DC input voltage source into a regulated DC output voltage source. The dual-mode operation controller has at least 5 pins, and the flyback transformer includes a primary-side winding, a secondary-side winding, and an auxiliary winding. The first primary-side and second primary-side switches are connected in series with the current-sensing resistor and placed at the low side of the primary-side winding, and the second primary-side switch is driven by the dual-mode operation controller.
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公开(公告)号：US09742292B2
公开(公告)日：2017-08-22
申请号：US15047629
申请日：2016-02-19
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Ching-Yuan Lin , Chih Feng Lin
CPC classification number: H02M3/33507 , H02M1/08 , H02M3/33515 , H02M2001/0009
Abstract: A multifunction power conversion device for dynamical detection includes an input filter unit, a transformer, a switching transistor, a driving controller, a feedback unit and an output unit. Two sensing signals from the primary and auxiliary coils of the transformer form a current sensing zero detection signal. The digital control unit of the driving controller determines if a current flowing through a secondary coil of the transformer is reduced to zero due to discharging, and further finds valley of the current of the secondary coil. The switching transistor is turned on after a preset number of the valley and then turned off by a process of current sense. Therefore, the present invention greatly reduces switching loss, increases efficiency of power conversion, and particular, enhances flexibility of application to meet actual requirements by simply updating program executed by the digital control unit.
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公开(公告)号：US20170214322A1
公开(公告)日：2017-07-27
申请号：US15221817
申请日：2016-07-28
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Ching-Yuan Lin , Wen-Yueh Hsieh , Chih Feng Lin
CPC classification number: H02M3/33576 , H02M1/4258 , H02M2001/0009 , Y02B70/126
Abstract: Disclosed is an isolated power conversion system for providing a function of isolated power conversion by converting an AC power into a DC output power, and a rectifying unit, a transformer, a switching transistor, a first pulse width modulation (PWM) controller, a second PWM controller, an output unit and a signal blocking unit are included. The signal blocking unit is employed as a connection interface between the first and second PWM controllers to provide digital signal for communication. Noise margin and stability of electrical operation are improved to avoid malfunction. Overall, the present invention greatly enhances stability of power conversion and secures quality of electrical signal.
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公开(公告)号：US09276481B2
公开(公告)日：2016-03-01
申请号：US14029796
申请日：2013-09-18
Applicant: INNO-TECH CO., LTD.
Inventor： Ching-Yuan Lin , Shu-Chia Lin , Chih Feng Lin
CPC classification number: H02M3/33523 , H02M3/33507 , H02M7/02 , H02M7/043 , H02M2001/0009 , H02M2001/0054 , Y02B70/1491
Abstract: A power control device for dynamically adjusting frequency includes an electric transformer, a controller, a loading feedback unit, and a switching transistor. The electric transformer includes a first side induction coil connected to an input power unit, a second side induction coil connected to a loading unit to generate an output power by electromagnetic induction with the first side induction coil, and an auxiliary induction coil generating a power sensing signal by electromagnetic induction with the first side induction coil. The loading feedback unit generates a loading feedback signal. The controller determines the level of loading based on the loading feedback signal and further detects the valleys of the power sensing signal so as to change the switching signal which controls the switching transistor at the optimal one of the valleys.
Abstract translation: 用于动态调整频率的功率控制装置包括电力变压器，控制器，负载反馈单元和开关晶体管。 电动变压器包括连接到输入功率单元的第一侧感应线圈和连接到负载单元的第二侧感应线圈，以通过第一侧感应线圈的电磁感应产生输出功率，以及产生功率感测的辅助感应线圈 通过第一侧感应线圈的电磁感应信号。 负载反馈单元产生负载反馈信号。 控制器基于负载反馈信号确定负载水平，并进一步检测功率感测信号的谷值，以便改变在最佳一个谷中控制开关晶体管的开关信号。
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Patent Agency Ranking
公开(公告)号：US09160253B2
公开(公告)日：2015-10-13
申请号：US14076108
申请日：2013-11-08
Applicant: INNO-TECH CO., LTD.
Inventor： Ching-Yuan Lin , Wen-Yueh Hsieh
CPC classification number: H02M7/53871 , H03B28/00 , H03K3/017 , H03K5/04 , H03K5/1565 , H03K7/08
Abstract: A sine pulse width modulation controller includes an edge detection unit for receiving a feedback input signal from the external electrical device to generate an edge signal, a register unit for storing and outputting a parameter signal, an angle increasing unit for receiving the edge signal and the parameter signal, determining cycles of pulse width modulation and generating an angle signal, a sine calculation unit for receiving the angle signal and performing a recursive algorithm based on the angle signal to implement the recursive algorithm so as to generate a sine calculation value, a multiplication unit for receiving the sine calculation value which is then further multiplied by the amplitude signal from the register unit to generate a pulse width signal, and a sine output unit receiving the pulse width signal to generate driving signals for driving the external electrical device to generate a sine terminal voltage.
Abstract translation: 正弦脉宽调制控制器包括边缘检测单元，用于接收来自外部电气设备的反馈输入信号以产生边沿信号，用于存储和输出参数信号的寄存器单元，用于接收边沿信号的角度增加单元和 确定脉冲宽度调制周期和产生角度信号，正弦计算单元，用于接收角度信号，并根据角度信号执行递归算法，以实现递归算法，以产生正弦计算值，乘法运算 单元，用于接收正弦计算值，然后进一步乘以来自寄存器单元的幅度信号以产生脉冲宽度信号;以及正弦输出单元，接收脉宽信号，以产生用于驱动外部电气设备的驱动信号，以产生 正弦端子电压。
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公开(公告)号：US20140218975A1
公开(公告)日：2014-08-07
申请号：US14022231
申请日：2013-09-10
Applicant: INNO-TECH CO., LTD.
Inventor： Ching-Yuan Lin , Shu-Chia Lin , Chih Feng Lin
IPC: H02M3/335
CPC classification number: H03K7/08 , H02M1/08 , H02M1/38 , H02M3/33507
Abstract: A power conversion system with adjustable frequency includes an electric transformer, a pulse width modulation driving controller, a switching transistor, a first and second voltage division resistors connected in series, an output diode and an output capacitor. The electric transformer receives the input power and generates the sensing current and induced current. The sensing current flows through the first and second voltage division resistors to generate the feedback signal. The induced current flows through the output diode and output capacitor to generate the output voltage to supply the load. The pulse width modulation driving controller determine whether the loading state of the load based on the feedback signal, and change the switching frequency according to the loading state and the input power, thereby increasing the whole efficiency of the power conversion system and achieving the aim of dynamically adjusting the optimal frequency.
Abstract translation: 具有可变频率的电力转换系统包括电变压器，脉宽调制驱动控制器，开关晶体管，串联连接的第一和第二分压电阻器，输出二极管和输出电容器。 变压器接收输入功率并产生感应电流和感应电流。 感测电流流过第一和第二分压电阻器以产生反馈信号。 感应电流流过输出二极管和输出电容器，以产生输出电压来提供负载。 脉宽调制驱动控制器根据反馈信号判定负载的负载状态，根据负载状态和输入功率改变开关频率，提高电力变换系统的整体效率，达到目的。 动态调整最佳频率。
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公开(公告)号：US20140192563A1
公开(公告)日：2014-07-10
申请号：US14049301
申请日：2013-10-09
Applicant: INNO-TECH CO., LTD.
Inventor： Ching-Yuan Lin , Shu-Chia Lin , Chih Feng Lin
IPC: H02M3/335
CPC classification number: H02M3/33523 , H02M2001/0032 , Y02B70/16
Abstract: A dual-mode switching power control device includes an electric transformer, a PWM driving controller, a switching transistor, an isolation element, an output diode and an output capacitor. The PWM driving controller is connected to the switching transistor coupled to the electric transformer. The first side inductor of the electric transformer and the switching transistor are coupled to an input power, and the second side inductor of the electric transformer is coupled to the output diode. The output capacitor and a load are connected in series. The output power is converted into a feedback signal by the isolation element. The PWM driving controller determines to perform DCM or CCM based on the feedback signal to control the current flowing through the electric transformer, and the output power is generated. Therefore, the efficiency of power conversion is improved and is suitable for high power applications.
Abstract translation: 双模开关电源控制装置包括电变压器，PWM驱动控制器，开关晶体管，隔离元件，输出二极管和输出电容器。 PWM驱动控制器连接到耦合到电变压器的开关晶体管。 电变压器的第一侧电感器和开关晶体管耦合到输入功率，并且电变压器的第二侧电感器耦合到输出二极管。 输出电容和负载串联。 输出功率由隔离元件转换成反馈信号。 PWM驱动控制器基于反馈信号确定执行DCM或CCM以控制流过电变压器的电流，并且产生输出功率。 因此，功率转换的效率得到提高，适用于大功率应用。
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公开(公告)号：US20160134193A1
公开(公告)日：2016-05-12
申请号：US14537971
申请日：2014-11-11
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Ching-Yuan Lin , Chih Feng Lin , Wen-Yueh Hsieh
CPC classification number: H02M3/33507 , H02M1/44 , H02M2001/0029 , H02M2001/0054 , Y02B70/1491
Abstract: A power control apparatus with dynamical adjustment of driving capability for converting an input power into an output power includes a transformer, a switch transistor connected to the transformer, a pulsed width modulation (PWM) driving controller generating a PWM signal and connected to the switch transistor, an isolation element, an output diode and an output capacitor. The first side coil of the transformer and the switch transistor are connected to the input power, the second side coil of the transformer is connected to the output diode and further connected to the output capacitor and an external load. The isolation element converts the output power into a feedback signal providing the PWM driving controller to dynamically control the PWM driving signal through adjustment so as to implement the optimal turn-on current for the switch transistor. Therefore, electrical performance and conversion efficiency are greatly improved by reducing the switching loss.
Abstract translation: 具有用于将输入功率转换成输出功率的驱动能力的动态调节的功率控制装置包括变压器，连接到变压器的开关晶体管，产生PWM信号并连接到开关晶体管的脉宽调制（PWM）驱动控制器 ，隔离元件，输出二极管和输出电容器。 变压器的第一侧线圈和开关晶体管连接到输入电源，变压器的第二侧线圈连接到输出二极管，并进一步连接到输出电容器和外部负载。 隔离元件将输出功率转换成反馈信号，提供PWM驱动控制器，以通过调节来动态地控制PWM驱动信号，以实现开关晶体管的最佳导通电流。 因此，通过降低开关损耗，电性能和转换效率大大提高。
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公开(公告)号：US10020745B2
公开(公告)日：2018-07-10
申请号：US15224539
申请日：2016-07-30
Applicant: INNO-TECH CO., LTD.
Inventor： Ching-Yuan Lin , Shu-Chia Lin , Wen-Yueh Hsieh , Chih Feng Lin
CPC classification number: H02M3/33523 , H02M1/08 , H02M1/4258 , H02M2001/0009 , H02M2001/0032 , H02M2001/0054 , Y02B70/126 , Y02B70/1491 , Y02B70/16
Abstract: Disclosed is a PWM controller with programmable switching frequency for PSR/SSR flyback converter so as to maximize the performance-to-cost ratio by tailor-making the switching frequency as a non-decreasing function of the output load and the maximum switching frequency as a non-increasing function of the input voltage, leading to a plurality of programmable voltage-dependent frequency-load curves, making possible the downsizing of flyback transformer while facilitating the simultaneous compliance with DoE and CoC efficiency requirements.
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