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公开(公告)号：US10656027B2
公开(公告)日：2020-05-19
申请号：US16001148
申请日：2018-06-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Shang-Feng Yang , Xin-Hung Lin
Abstract: An electronic device includes a printed circuit board (PCB), a control circuit, and a sensing circuit. The control circuit is configured to determine whether over temperature occurs at one or more detecting points arranged at a first surface of the printed circuit board according to at least one voltage signal. The sensing circuit is arranged at a second surface opposite to the first surface of the printed circuit board and configured to sense the temperature of the one or more detecting points and correspondingly output the voltage signal to the control circuit.
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公开(公告)号：US10197604B2
公开(公告)日：2019-02-05
申请号：US15654021
申请日：2017-07-19
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chun-Wei Wu , Xin-Hung Lin
IPC: G01R19/165 , G01R19/00 , G01R19/18 , H02H7/09 , H02P27/06
Abstract: A current detecting apparatus measures an input current or an output current of an electronic apparatus. The current detecting apparatus includes a current detecting module, a direct-current measurement module and a current detecting module. The current detecting module includes a coil configured to electromagnetically couple to a path of an input or a path of an output of the electronic apparatus to obtain a first voltage signal. The direct-current measurement module measures the path of the input or the path of the output to obtain a second voltage signal. The current detecting module converts the first voltage signal into a first current command, and converts the second voltage signal into a second current command. The first current command is an alternating-current component of the input current or the output current. The second current command is a direct-current component of the input current or the output current.
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公开(公告)号：US11699948B2
公开(公告)日：2023-07-11
申请号：US17166369
申请日：2021-02-03
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Yu Huang , Xin-Hung Lin
CPC classification number: H02M1/32 , H02M3/155 , H02M1/0009
Abstract: A power supply system with self-excited drive function includes a power supply apparatus, a logic disconnection circuit, a self-boosting circuit, a protection circuit, and a current sensing unit. The logic disconnection circuit is coupled between a positive power wire and a negative power wire. The self-boosting circuit converts a voltage into an auxiliary voltage, and the self-boosting circuit is coupled to the logic disconnection circuit to receive the auxiliary voltage. The current sensing unit outputs a current sensing signal according to a current flowing through the positive power wire or the negative power wire. The protection circuit makes a short circuit or an open circuit between the positive power wire and the negative power wire according to the current sensing signal. The logic disconnection circuit disables or enables the self-boosting circuit according to the voltage between the positive power wire and the negative power wire.
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公开(公告)号：US11122699B2
公开(公告)日：2021-09-14
申请号：US16560483
申请日：2019-09-04
Applicant: Delta Electronics, Inc.
Inventor： Sheng-Kuo Lin , Chia-Hao Yeh , Xin-Hung Lin
Abstract: An input connection device for an electronic device is provided. The electronic device includes a mother circuit board and a cabinet having a first wall. The input connection device comprises an insulation housing, a conductive connection unit, a circuit board, a switch, a first power wire and a second power wire. The insulation housing is disposed on the first wall and comprises a main body comprising a hollow channel. The conductive connection unit is disposed in the hollow channel and is engaged with the insulation housing. The circuit board is connected with the conductive connection unit directly. The switch has an input part and an output part. The first power wire is connected with the circuit board and the input part of the switch. The second power wire is connected with the output part of the switch and the mother circuit board.
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公开(公告)号：US10122297B2
公开(公告)日：2018-11-06
申请号：US15491211
申请日：2017-04-19
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wei-Lun Hsin , Xin-Hung Lin
Abstract: A power conversion system includes an input capacitor group, a first-converting circuit, a second-converting circuit, a first filter circuit, a second filter circuit, a third filter circuit and a control circuit. The input capacitor group receives a direct-current-input voltage. The first-converting circuit and the second-converting circuit are connected to the input capacitor group in parallel. The first filter circuit includes a first output inductor and a second output inductor. The second filter circuit includes a third output inductor and a fourth output inductor. The third filter circuit is connected between the first filter circuit and the second filter circuit. The control circuit separately controls the first-converting circuit and the second-converting circuit. The first output inductor is connected to the first-converting circuit, the second-converting circuit and the second output inductor. The third output inductor is connected to the second-converting circuit, the first-converting circuit and the fourth output inductor.
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Patent Agency Ranking
公开(公告)号：US20220140593A1
公开(公告)日：2022-05-05
申请号：US17445405
申请日：2021-08-19
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chun-Wei Wu , Chia-Ming Chang , Xin-Hung Lin
Abstract: A signal sampling circuit for arc detection includes plural current sensors, plural high pass filter circuits, and an adder circuit. Each of the current sensors is configured to sense a measured current and then generate a sensed voltage signal. One of the high pass filter circuits receives the sensed voltage signal from one of the current sensors and performs high-pass filtering on the sensed voltage signal. The adder circuit performs scaling up, adding, and DC offset on the high-pass filtered sensed voltage signals. Each of the high pass filter circuits is composed of a filter capacitor and a first resistor connected in series with the filter capacitor. The adder circuit is composed of the first resistors, a first operational amplifier, and a second resistor.
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公开(公告)号：US10834857B2
公开(公告)日：2020-11-10
申请号：US16503068
申请日：2019-07-03
Applicant: Delta Electronics, Inc.
Inventor： Lei-Ming Lee , Xin-Hung Lin
Abstract: An inverter device includes a casing, a heat source element, a heat dissipation structure and a fan. The casing has a base and a cover covering the base. An internal and an external surface are defined on the cover. The inner surface is disposed corresponding to the base. The heat source element is disposed in the casing and arranged on the base. The heat dissipation structure is thermal connected with the internal surface. The fan is accommodated in the casing corresponding to the heat dissipation structure. An air flow in the casing is accelerated by the fan, and the heat dissipation structure absorbs heat from the air flow in the casing and thermal conductively transfers to the external surface of the cover. A heat dissipation efficiency of the inverter device is thereby improved and the inverter device is thereby more durable.
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公开(公告)号：US10141828B2
公开(公告)日：2018-11-27
申请号：US15798379
申请日：2017-10-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Sin-Hong Chen , Ho Huang , Xin-Hung Lin
Abstract: A maximum power point tracking method includes: configuring a voltage tuning direction of a power converter by a process circuit such that the input voltage of the power converter changes in a positive or a negative trend; detecting the corresponding input voltage and input current of the power converter sequentially to obtain multiple powers; and when the powers decrease for N times continuously, change the voltage tuning direction of the power converter such that the change of the input voltage switches from positive trend to negative trend, or from negative trend to positive trend, in which N is an integer greater than or equal to 2.
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公开(公告)号：US09906134B1
公开(公告)日：2018-02-27
申请号：US15628631
申请日：2017-06-20
Applicant: DELTA ELECTRONICS, INC.
Inventor： Tsung-Han Tsai , Po-Jen Hou , Xin-Hung Lin
CPC classification number: H02M3/158 , G01R27/18 , G01R31/14 , G05D9/12 , H02H1/0046 , H02J3/387 , H02J9/061 , H02M1/4208 , H02M7/40
Abstract: An insulation detecting circuit includes a first switching unit, a second switching unit, a detecting resistor, a processing unit, and a voltage detecting unit. The second switching unit is electrically coupled to the first switching unit. The processing unit is configured to control the first and the second switching units. The voltage detecting unit obtains a first voltage value across the detecting resistor when the processing unit controls the first switching unit to be on and the second switching unit to be off. The voltage detecting unit obtains a second voltage value across the detecting resistor when the processing unit controls the first switching unit to be off and the second switching unit to be on. The processing unit operates in a first mode and configured to calculate an insulation impedance value of a power converting device according to the first and the second voltage values.
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公开(公告)号：US11632076B2
公开(公告)日：2023-04-18
申请号：US17087586
申请日：2020-11-02
Applicant: DELTA ELECTRONICS, INC.
Inventor： Lei-Ming Lee , Xin-Hung Lin
Abstract: A test method for testing a solar power generation system is provided. The solar power generation system includes a DC to AC converter and a control unit. The DC to AC converter is electrically coupled between an external power grid and a solar panel. The control unit is configured to control the DC to AC converter to switch between a power generation mode and a test mode. When in the power generation mode, a photoelectric energy generated by the solar panel is provided to the external power grid via the DC to AC converter. When in the test mode, the control unit controls the DC to AC converter to generate a testing electrical energy by obtaining from the external power grid, to effect a test result of the solar panel when the testing electrical energy passes through the solar panel.
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