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公开(公告)号：US20220131457A1
公开(公告)日：2022-04-28
申请号：US17105786
申请日：2020-11-27
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Tsu-Huai Chan , Chih-Feng Lin
Abstract: Disclosed is a power control system of adaptive control of turn on time, including a primary side digital controller, a secondary side synchronization controller, a rectification unit, a power unit, a transformer unit, a primary side switch unit, a current sensing unit, a secondary side switch unit, and a secondary side output capacitor for implementing a function of flyback power conversion. The secondary side synchronization controller is intended to turn on or off the secondary side switch unit to achieve a synchronization function of rectification, and the primary side digital controller reduces a primary side drain-source voltage of the primary side switch unit and a secondary side drain-source voltage of the secondary side switch unit by reducing a current sensing limit used to compare with the current sensing signal. The power control system thus greatly improves stability and endurance of the overall operation.
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公开(公告)号：US20210384835A1
公开(公告)日：2021-12-09
申请号：US16993360
申请日：2020-08-14
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Tsu-Huai Chan , Chih-Feng Lin
Abstract: Disclosed is a variable-frequency power controller. The controller includes a power pin, a ground pin, a driving pin, a voltage sensing pin, and a loading voltage sensing pin, and is in collocation with a rectification unit, an inductor unit, a switch unit, an output unit, a voltage sensing unit, and a loading voltage sensing unit to implement a variable-frequency power control of power conversion. The controller performs one of the burst mode, valley switch mode, quasi-resonance (QR) mode, conduction mode, and peak loading mode based on a wide range of loading level. In particular, the loading level covered by the present invention includes the ultra-light, light, middle, full, and over-heavy loading, and the features of power saving, low switching loss, operation safety are thus achieved. Further, any over design employed to meet the wide range of loading level is prevented.
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公开(公告)号：US11165336B1
公开(公告)日：2021-11-02
申请号：US16922053
申请日：2020-07-07
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Tsu-Huai Chan , Chih-Feng Lin
Abstract: Disclosed is a method of controlling a time parameter performed by a power controller having a power pin, a ground pin, a driving pin, a time parameter selecting pin, a feedback pin, and a current sensing pin. The power controller is in collocation with a rectification unit, a transformer, a switch unit, a power output unit, and a feedback unit. A Pulse Width Modulation (PWM) frequency of a driving signal, an Over-Voltage Protection (OVP) delay time, and an Under-Voltage Protection (UVP) delay time are preset in the power controller. An external time parameter selecting signal is received through the time parameter selecting pin to dynamically update the PWM frequency, the OVP delay time, or the UVP delay time, thereby greatly increasing efficiency of power conversion and avoiding malfunction of OVP or UVP.
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公开(公告)号：US11146174B2
公开(公告)日：2021-10-12
申请号：US16749130
申请日：2020-01-22
Applicant: INNO-TECH CO., LTD.
Inventor： Chih-Feng Lin , Shu-Chia Lin , Tsu-Huai Chan
Abstract: Disclosed is a dynamic multi-functional power controller in collocation with a primary side coil, a switching unit, and a current sensing resistor, performing a power control process. An induced current is generated by a secondary side coil coupled with the primary side coil through electromagnetic interaction with a conduction current flowing through the primary side coil, and an output power is generated to supply an external load when the induced current flows through an output rectification unit and an output filter unit. The power control process includes detecting if any abnormal state occurs, stopping a driving signal, waiting for a period of time, and then re-sending the driving signal. Thus, the present invention provides protection for various kinds of peak loading, avoids high power state when an abnormal state is not resolved, and further reduces the average output power, thereby implementing power saving.
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公开(公告)号：US10784854B1
公开(公告)日：2020-09-22
申请号：US16568914
申请日：2019-09-12
Applicant: INNO-TECH CO., LTD.
Inventor： Chih-Feng Lin , Shu-Chia Lin , Tsu-Huai Chan
IPC: H03K17/16
Abstract: Disclosed is a power control device suitably applied to the field of driving a microelectronic element like MOSFET. Based on Miller plateau voltage of the microelectronic element such as MOSFET, the power control device can dynamically adjust driving capability and set a driving voltage so as to control and balance turn-on loss and switch loss, and further achieve an optimal average efficiency, particularly, for selecting or replacing the microelectronic element like MOSFET. Also, an electronic system provided with the power control device effectively solves the problem of Electromagnetic Interference (EMI) imposed on peripheral devices.
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Patent Agency Ranking
公开(公告)号：US09762131B1
公开(公告)日：2017-09-12
申请号：US15161315
申请日：2016-05-23
Applicant: INNO-TECH CO., LTD.
Inventor： Chih-Liang Wang , Ching-Sheng Yu , Wen-Yen Pen
CPC classification number: H02M3/33523 , H02M1/08 , H02M1/36 , H02M2001/0006 , H02M2001/0009
Abstract: Disclosed is an Auxiliary-Free High-Side Driven Secondary-Side Regulated (AF-HSD-SSR) flyback converter, which includes an AC-to-DC rectification unit, an input capacitor, a switching unit, a current-sensing resistor, an Auxiliary-Free (AF) flyback transformer, an output rectifier, an output capacitor, a PWM controller, and a SSR unit. The AF flyback transformer includes a primary winding and a secondary winding, where the primary winding is split into two halves. The switching unit is placed at the high side of the primary winding, and the PWM controller in collocation with the SSR unit drives the switching unit in response to all the required voltage and current sense signals to keep voltage conversion and power delivery safe and efficient within the specifications. The first half of the primary winding can provide the PWM controller with a continuous and steady working voltage supply after startup, thus eliminating the need for the auxiliary winding.
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公开(公告)号：US09742293B2
公开(公告)日：2017-08-22
申请号：US15224719
申请日：2016-08-01
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Chih-Liang Wang , Ching-Sheng Yu
CPC classification number: H02M3/33507 , H02M1/08 , H02M1/32 , H02M1/36 , H02M2001/0009
Abstract: A power supply and a method of power supplying for converting an external alternating power into an output power with appropriate voltage and power are disclosed. The power supply includes an input charging unit, an input filtering unit, a regulating unit, a transformer, a controller, an output unit, an output capacitor, a switching unit and a feedback unit. The regulating unit is connected to the input filtering unit and comprises a regulating capacitor and a regulator connected in series. The regulator is controlled by the controller to perform one of the working modes including initial open circuit, power on conduction, short circuit normal operation and over-voltage open circuit protection. Therefore, the present invention overcomes the problem of inrush current upon powering on, and particularly, the controller performs digital operation with flexibility to meet actual requirements by updating appropriate firmware of software program.
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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：US20230402928A1
公开(公告)日：2023-12-14
申请号：US17835963
申请日：2022-06-09
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Tsu-Huai Chan , Chih-Feng Lin
CPC classification number: H02M3/33569 , H02M1/0058 , H02M1/08 , H02M1/0009
Abstract: Disclosed is a power control system with zero voltage switching including a power controller, a rectification unit, a power unit, a transformer unit, a primary side switch unit, a current sensing unit, an auxiliary switch unit, an output unit, and a current sensing unit for implementing a function of flyback power conversion. The power controller has a power pin, a ground pin, a primary side driving pin, a voltage sensing pin, an auxiliary driving pin, and an auxiliary winding sensing pin, In particular, the auxiliary switch unit is controlled to influence an primary side winding through an auxiliary winding so as to reduce the drain voltage of the primary side switch unit. Further, the primary side switch unit is turned on when the drain voltage is decreased to the lowest value, thereby greatly reducing switching loss and increasing efficiency of power conversion.
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公开(公告)号：US10128743B2
公开(公告)日：2018-11-13
申请号：US15182689
申请日：2016-06-15
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Ching-Yuan Lin , Chih Feng Lin , Wen-Yueh Hsieh
Abstract: Disclosed is an integrated PFC and PWM controller with a plurality of frequency-load curves to minimize the no-load power consumption and maximize 4-point average efficiencies. The controller selects a frequency-load curve among the plurality of frequency-load and controls the PFC stage and the PWM stage to operate in HM, BM, DCM, or CCM based on the combined result from the input voltage and the output load sense signal, fetched respectively from the input terminal of the PFC stage and the output terminal of the PWM stage. The controller has the PSU operate in HM in case of no load, and operate in BM, DCM or CCM as the load increases across the flyback out rail.
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