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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：US20230010170A1
公开(公告)日：2023-01-12
申请号：US17838306
申请日：2022-06-13
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Tsu-Huai Chan , Chih-Feng Lin
Abstract: The present invention discloses a method of standby power supply including steps of: detecting a loading level; determining the loading level; entering a select mode; selecting a standby mode; entering a no-load mode, or a sleep mode, or a power-down mode; during the no-load mode, generating a no-load sustaining power, and returning back to detect the loading level when a preset condition is met; during the sleep mode, generating a sleep sustaining power, and returning back to detect the loading level when the preset condition is met; during the power-down mode, ceasing the power and entering a power-down recovery mode; and during the power-down recovery mode, returning back to detect the loading level when the preset condition is met. Therefore, the present invention implements power conversion for normal power supply, and particularly effectively controls the amount of power in the standby state, thereby greatly reducing power consumption and improving power saving.
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公开(公告)号：US11018591B1
公开(公告)日：2021-05-25
申请号：US16749177
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 regulation power controller having a work voltage input pin, a feedback voltage input pin, a driving voltage output pin, a current sensing input pin, and a regulation power input pin, and being in collocation with a switching unit, an input power processing unit, a transformer, a current sensing resistor, a power regulation unit, an output rectification unit, and an output capacitor for converting an input AC voltage into an output voltage for supplying a load. In particular, the driving voltage and the driving current are dynamically adjusted according to the feedback voltage and the current sensing signal, thereby greatly increasing efficiency of power conversion and Electromagnetic Interference (EMI).
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公开(公告)号：US20210175811A1
公开(公告)日：2021-06-10
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, sopping 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 abnormal state being not resolved, and further reduces the average output power, thereby implementing power saving.
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公开(公告)号：US10938298B1
公开(公告)日：2021-03-02
申请号：US16699806
申请日：2019-12-02
Applicant: INNO-TECH CO., LTD.
Inventor： Shu-Chia Lin , Chih-Feng Lin , Wen-Yueh Hsieh , Tsu-Huai Chan
Abstract: A power controller in collocation with a rectification unit, a transformer, a switching unit, a current sensing resistor, an output rectification unit, and an output capacitor is disclosed, and includes a working voltage pin, a ground pin, a PWM driving pin, a current sensing pin, and a load feedback pin for converting an external AC input power into an output power to supply a load. In particular, the power controller simultaneously performs active detection on load power to provide overload protection. Specifically, a load feedback signal related to a load power and a threshold load voltage representative of a preset threshold load power is compared, and a power counter representative of a calculated load power is increased by one, decreased by one, or kept without change according to the comparison result. Then, the power counter is employed to determine whether an overload abnormal event occurs.
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Patent Agency Ranking
公开(公告)号：US11233455B2
公开(公告)日：2022-01-25
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：US20210336532A1
公开(公告)日：2021-10-28
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：US20210175812A1
公开(公告)日：2021-06-10
申请号：US16749177
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 regulation power controller having a work voltage input pin, a feedback voltage input pin, a driving voltage output pin, a current sensing input pin, and a regulation power input pin, and being in collocation with a switching unit, an input power processing unit, a transformer, a current sensing resistor, a power regulation unit, an output rectification unit, and an output capacitor for converting an input AC voltage into an output voltage for supplying a load. In particular, the driving voltage and the driving current are dynamically adjusted according to the feedback voltage and the current sensing signal, thereby greatly increasing efficiency of power conversion and Electromagnetic Interference (EMI).
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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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