公开(公告)号：US20240146176A1

公开(公告)日：2024-05-02

申请号：US17993976

申请日：2022-11-24

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Feng-Yi Lin

IPC: H02M1/08 ,  H02M1/00 ,  H02M3/00 ,  H02M3/335

CPC classification number: H02M1/08 ,  H02M1/0058 ,  H02M3/01 ,  H02M3/33573

Abstract: A method of controlling phase shift pulse width modulation of a power converter, the method includes a step of obtaining sampling signals of an output voltage and current of the power converter. Then, a digital signal processor is used to calculate an output power of the power converter. Next, a comparator is used to compare the output power of the power converter with a reference power. When the output power is less than the reference power, the modulation control of the switch of the power converter enters into hard-switching mode, and when the output power is greater than the reference power, the modulation control of the switch of the power converter enters into soft-switching mode.

公开(公告)号：US20240079953A1

公开(公告)日：2024-03-07

申请号：US17966837

申请日：2022-10-15

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Yao-Chun Tung ,  Jian-Hsieng Lee

IPC: H02M3/00 ,  H02M1/12

CPC classification number: H02M3/015 ,  H02M1/12

Abstract: An LLC resonant converter with variable resonant tank includes a switching circuit for converting a DC voltage into switching signal, a variable resonant tank coupled to the switching circuit for receiving the switching signal to provide a primary current, a transformer circuit having a primary and a secondary side winding, and a rectifying/filtering circuit to rectifying and filtering a secondary current. The variable resonant tank is coupled between the switching circuit and the transformer circuit, which includes a variable resonant inductor, a magnetizing inductance and a resonant capacitor coupled in series for dynamically adjusting the gain curve of the LLC resonant converter according to the demand of the output current.

公开(公告)号：US10328812B2

公开(公告)日：2019-06-25

申请号：US15386384

申请日：2016-12-21

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Ying-Chieh Yeh ,  Hsiao-Tung Ku

IPC: B60L53/31 ,  G06F3/147 ,  B60L11/18 ,  B60L1/00 ,  B60L3/00 ,  B60L3/04 ,  B60L3/12 ,  H02J7/00 ,  H02J9/06 ,  H02M1/10

Abstract: A power supply system with automatic switchover voltage for vehicle control unit is proposed. The system comprises a supply communication module configured to communicate with a vehicle control unit, the supply communication module comprising a power supply module to provide power for a vehicle control unit; and a communication device coupled to the supply communication module for showing power supply status; wherein the supply communication module provides a first direct voltage and communicates with the vehicle control unit before supplying power, and if the supply communication module does not receive any message from the vehicle control unit within a first time interval, the supply communication module automatically switches to a second direct voltage from the first direct voltage or automatically increases the first direct voltage within a second time interval, and supplies power to the vehicle control unit; and wherein the second direct voltage is greater than the first direct voltage.

公开(公告)号：US12113454B2

公开(公告)日：2024-10-08

申请号：US17966834

申请日：2022-10-15

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Yao-Chun Tung

IPC: H02M1/00 ,  H02M3/00 ,  H02M3/335 ,  H02M7/48 ,  H02M7/5387 ,  H05K1/18

CPC classification number: H02M7/4815 ,  H02M7/5387 ,  H05K1/181 ,  H02M1/0077 ,  H02M3/01 ,  H02M3/33571 ,  H02M3/33592

Abstract: An LLC resonant converter includes a switching circuit for converting a DC voltage into switching signal, a resonant tank coupled to the switching circuit to receive the switching signal and to provide a primary current, a transformer circuit coupled to the resonant tank. The transformer circuit includes a plurality of separated transformers, each has a primary side and a secondary side windings disposed on the PCB, where the primary side winding of each transformer can be selected to couple in series or in parallel with the primary side winding of other transformers to form a dynamically varied equivalent primary side winding, maintaining the turns ratio to fine-tune the resonant tank. The gain curve of the LLC converter can be adjusted by electrically coupling an external excitation inductor, a resonant capacitor or a resonant inductor to the resonant tank, according to the demand of output current.

公开(公告)号：US20240079965A1

公开(公告)日：2024-03-07

申请号：US17966834

申请日：2022-10-15

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Yao-Chun Tung

IPC: H02M7/48 ,  H02M7/5387 ,  H05K1/18

CPC classification number: H02M7/4815 ,  H02M7/5387 ,  H05K1/181

Abstract: An LLC resonant converter includes a switching circuit for converting a DC voltage into switching signal, a resonant tank coupled to the switching circuit to receive the switching signal and to provide a primary current, a transformer circuit coupled to the resonant tank. The transformer circuit includes a plurality of separated transformers, each has a primary side and a secondary side windings disposed on the PCB, where the primary side winding of each transformer can be selected to couple in series or in parallel with the primary side winding of other transformers to form a dynamically varied equivalent primary side winding, maintaining the turns ratio to fine-tune the resonant tank. The gain curve of the LLC converter can be adjusted by electrically coupling an external excitation inductor, a resonant capacitor or a resonant inductor to the resonant tank, according to the demand of output current.

公开(公告)号：US10272791B2

公开(公告)日：2019-04-30

申请号：US15284540

申请日：2016-10-04

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Ying-Chieh Yeh ,  Hsiao-Tung Ku

IPC: H02J7/00 ,  H02J7/14 ,  B60L11/18

Abstract: A method of intelligent power distribution for a charging system with double charging terminals is provided. The method of the present invention comprises the following steps, determining whether a first vehicle is requesting for charging or not. Then, the next step is determining whether a second vehicle is charging in the system or not. If the determination is affirmative, the first vehicle is then charged by remainder power modules. In the following, it is determining whether remainder power modules can be used for a second output terminal. Subsequently, it is determining whether the first vehicle needs more power by charging. If the determination is affirmative, the remainder power modules are charging to the first vehicle via the second output terminal.

公开(公告)号：US10027144B2

公开(公告)日：2018-07-17

申请号：US15259050

申请日：2016-09-08

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Hsiao-Tung Ku

IPC: H02J7/00 ,  G01F23/26 ,  G01F23/296

CPC classification number: H02J7/0029 ,  B60L53/30 ,  G01F23/263 ,  G01F23/296 ,  H02J7/0027 ,  H02J7/0045 ,  H02J7/0047 ,  H02J2007/0037 ,  Y02T10/7055 ,  Y02T10/7088

Abstract: The present invention provides a liftable charging apparatus with water level detection. The liftable charging apparatus comprises a control module, a power module, a detective module, an overvoltage protection module and a lifting module. The power module, coupled to the control module, comprises an AC/DC converting unit for converting AC current into DC current. The detective module, coupled to the control module, comprises a water level detection unit and a micro-switch. The water level detection unit is provided to detect a height of outside water level. The overvoltage protection module is coupled to the power module and the detective module. The lifting module is coupled to the control module. Wherein the overvoltage protection module is triggered by the micro-switch and the lifting module is driven when the height of outside water level is greater than a default value.

公开(公告)号：US20230322115A1

公开(公告)日：2023-10-12

申请号：US17734065

申请日：2022-05-01

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Sheng-Wen Sung ,  Jian-Hsieng Lee ,  Chun-Chen Chen

IPC: B60L53/66 ,  B60L53/30 ,  H02J7/00

CPC classification number: B60L53/66 ,  B60L53/305 ,  H02J7/00716

Abstract: A detection circuit for control pilot abnormality of a DC charging pile, which is electrically connected to a control pilot signal generating circuit and a control circuit, providing instant protection for the DC charging pile while control pilot (CP) abnormality been detected. The detection circuit includes a control pilot (CP) signal potential discrimination module, a charging-discharging module electrically connected to the CP signal potential discrimination module, and a controller protection triggering module electrically connected to the charging-discharging module, wherein the CP signal potential discrimination module justifies the voltage level of the input CP signals been input, activates the charging-discharging module to charge the CP signals to a steady-state voltage higher than a predetermined voltage level within a certain time period, and activates the controller protection trigger module to provide instant protection for the DC charging pile.

公开(公告)号：US11594360B2

公开(公告)日：2023-02-28

申请号：US16862534

申请日：2020-04-29

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Feng-Yi Lin ,  Pang-Chuan Chen

IPC: H01F27/22 ,  H01F27/02 ,  H01F27/28

Abstract: The present invention provides an electromagnetic apparatus with heat sink structure, comprising: metal housing, the metal housing further comprises the upper housing and the lower housing to fix the components of the electromagnetic apparatus and store the energy of the electromagnetic apparatus during operation; the electrical coil is mounted on the coil shelf and is provided with numbers of primary windings and secondary windings; the heat conductive tube is arranged in the gap of the windings for conducting the heat generated by the electrical coil to the outside of the electromagnetic apparatus. Furthermore, the conducting wire is electrically coupled to the electrical coil and transmits the input voltage and output voltage during the operation of electromagnetic apparatus.

公开(公告)号：US11254231B2

公开(公告)日：2022-02-22

申请号：US16833868

申请日：2020-03-30

Applicant: PHIHONG TECHNOLOGY CO., LTD.

Inventor： Chun Chen Chen ,  Jian-Hsieng Lee

IPC: H02J7/00 ,  H02J7/14 ,  B60L53/62 ,  B60L53/22 ,  B60L53/30

Abstract: A hardware together with a software are used to implement a control pilot (CP) status detection for protecting a DC charging pile when errors happens, such as short circuit or open circuit, at CP point. The circuit for detecting the abnormality of the CP point includes a detection circuit, which is coupled to a CP signal generating circuit of the charging pile to provide an abnormal state detection when an electrical vehicle is electrically connected to the DC charging pile, and output the detected CP signal to a control circuit. It includes a DC voltage converter that converts a DC input voltage into two DC output reference voltage levels, a rectifier circuit to filter out the negative potential of the CP signal generating by the CP signal generating circuit, and a CP signal isolation circuit, connected to the rectifier circuit to provide isolated CP signals to the control circuit.