Patents by Inventor Lei-Ming Lee
Lei-Ming Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240128676Abstract: A connector assembly includes a base, a wire unit, and a wire fixing unit. The base includes a body and two side wings. The two side wings are respectively rotatably connected to two opposite sides of the body, and each of the side wings includes a first fixing portion. The wire unit is located between the two side wings. The wire unit includes a connection seat disposed in the body, and various wires disposed in the connection seat and protruding from one side of the connection seat. The wire fixing unit includes two second fixing portions and various through holes, in which the through holes are located between the two second fixing portions, the two first fixing portions respectively clamp the two second fixing portions, and the wires correspondingly pass through the through holes.Type: ApplicationFiled: December 22, 2022Publication date: April 18, 2024Inventors: Lei-Ming LEE, Hung-Chuan LIN
-
Publication number: 20230154664Abstract: A connection structure of an inductive element includes a circuit substrate, in inductive element, at least one connection wire, a supporting element, a containing element, a positioning element, a connecting element, and a locking element. The circuit substrate has a through hole. Each connection wire has a first end connected to the inductive element, and a fixed terminal is disposed on a second end of the connection wire. The containing element is formed on the supporting element to provide a containing space. The positioning element is contained in the containing space, and provides a positioning part. The connecting element has a first connecting part and a second connecting part. The first connecting part is connected to the positioning part to clip the fixed terminal. The locking element has a locking part. The locking part is connected to the second connecting part to lock on the circuit substrate.Type: ApplicationFiled: January 18, 2023Publication date: May 18, 2023Inventors: Lei-Ming LEE, Xin-Hung LIN
-
Patent number: 11632076Abstract: 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.Type: GrantFiled: November 2, 2020Date of Patent: April 18, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Lei-Ming Lee, Xin-Hung Lin
-
Patent number: 11600986Abstract: A safety shutdown apparatus with self-driven control is coupled to a power-supplying path between a power supply apparatus and a load. The safety shutdown apparatus includes a detection unit, a controllable switch, and a drive circuit. The detection unit is coupled to the power-supplying path, and the controllable switch is coupled between a positive node and a negative node of the power-supplying path. The drive circuit is coupled to the detection unit, the power-supplying path, and the controllable switch. The drive circuit receives an output voltage of the power supply apparatus to turn on the controllable switch, and turn off the controllable switch according to whether the detection unit detects a current flowing through the power-supplying path.Type: GrantFiled: February 3, 2021Date of Patent: March 7, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Lei-Ming Lee, Wen-Yu Huang, Xin-Hung Lin
-
Patent number: 11600422Abstract: A connection structure of an inductive element includes a circuit substrate, in inductive element, at least one connection wire, a supporting element, a containing element, a positioning element, a connecting element, and a locking element. The circuit substrate has a through hole. Each connection wire has a first end connected to the inductive element, and a fixed terminal is disposed on a second end of the connection wire. The containing element is formed on the supporting element to provide a containing space. The positioning element is contained in the containing space, and provides a positioning part. The connecting element has a first connecting part and a second connecting part. The first connecting part is connected to the positioning part to clip the fixed terminal. The locking element has a locking part. The locking part is connected to the second connecting part to lock on the circuit substrate.Type: GrantFiled: September 28, 2018Date of Patent: March 7, 2023Assignee: DELTA ELECTRONICS INC.Inventors: Lei-Ming Lee, Xin-Hung Lin
-
Publication number: 20220045499Abstract: A safety shutdown apparatus with self-driven control is coupled to a power-supplying path between a power supply apparatus and a load. The safety shutdown apparatus includes a detection unit, a controllable switch, and a drive circuit. The detection unit is coupled to the power-supplying path, and the controllable switch is coupled between a positive node and a negative node of the power-supplying path. The drive circuit is coupled to the detection unit, the power-supplying path, and the controllable switch. The drive circuit receives an output voltage of the power supply apparatus to turn on the controllable switch, and turn off the controllable switch according to whether the detection unit detects a current flowing through the power-supplying path.Type: ApplicationFiled: February 3, 2021Publication date: February 10, 2022Inventors: Lei-Ming LEE, Wen-Yu HUANG, Xin-Hung LIN
-
Publication number: 20210351743Abstract: 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.Type: ApplicationFiled: November 2, 2020Publication date: November 11, 2021Inventors: Lei-Ming LEE, Xin-Hung LIN
-
Patent number: 10985752Abstract: A hybrid drive circuit (100, 100?) drives a first characteristic transistor and a second characteristic transistor coupled in parallel to the first characteristic transistor according to an input signal (Sin). The hybrid drive circuit (100, 100?) includes a first turn-on path (Pc1), a first turn-off path (Ps1), a second turn-on path (Pc2), and a second turn-off path (Ps2). The first turn-on path (Pc1) and the second turn-on path (Pc2) produce a first delay time to delay turning on the first characteristic transistor. The first turn-off path (Ps1) and the second turn-off path (Ps2) produce a second delay time to delay turning off the second characteristic transistor.Type: GrantFiled: December 13, 2019Date of Patent: April 20, 2021Assignee: Delta Electronics, Inc.Inventors: Lei-Ming Lee, Xin-Hung Lin
-
Publication number: 20200389168Abstract: A hybrid drive circuit (100, 100?) drives a first characteristic transistor and a second characteristic transistor coupled in parallel to the first characteristic transistor according to an input signal (Sin). The hybrid drive circuit (100, 100?) includes a first turn-on path (Pc1), a first turn-off path (Ps1), a second turn-on path (Pc2), and a second turn-off path (Ps2). The first turn-on path (Pc1) and the second turn-on path (Pc2) produce a first delay time to delay turning on the first characteristic transistor. The first turn-off path (Ps1) and the second turn-off path (Ps2) produce a second delay time to delay turning off the second characteristic transistor.Type: ApplicationFiled: December 13, 2019Publication date: December 10, 2020Inventors: Lei-Ming LEE, Xin-Hung LIN
-
Patent number: 10834857Abstract: 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.Type: GrantFiled: July 3, 2019Date of Patent: November 10, 2020Assignee: DELTA ELECTRONICS, INC.Inventors: Lei-Ming Lee, Xin-Hung Lin
-
Publication number: 20200220381Abstract: A smart grid integration system includes an AC grid and at least one power conversion apparatus. The power conversion apparatus includes a control unit and a communication unit. The control unit is coupled to the communication unit and receives a voltage signal corresponding to a voltage of the AC grid. The control unit decomposes the voltage signal into a plurality of frequency components and sets a fundamental component and a plurality of dominant harmonic components as a voltage operation signal. The communication unit receives a current signal corresponding to a current flowing through a circuit node through a current port and generates a current information signal. The communication unit receives the voltage operation signal transmitted from the control unit and calculates power information by multiplying the voltage operation signal and the current information signal.Type: ApplicationFiled: April 5, 2019Publication date: July 9, 2020Inventors: Lei-Ming LEE, I-Jung YANG, Xin-Hung LIN
-
Publication number: 20200196491Abstract: 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.Type: ApplicationFiled: July 3, 2019Publication date: June 18, 2020Inventors: Lei-Ming LEE, Xin-Hung LIN
-
Publication number: 20190371509Abstract: A connection structure of an inductive element includes a circuit substrate, in inductive element, at least one connection wire, a supporting element, a containing element, a positioning element, a connecting element, and a locking element. The circuit substrate has a through hole. Each connection wire has a first end connected to the inductive element, and a fixed terminal is disposed on a second end of the connection wire. The containing element is formed on the supporting element to provide a containing space. The positioning element is contained in the containing space, and provides a positioning part. The connecting element has a first connecting part and a second connecting part. The first connecting part is connected to the positioning part to clip the fixed terminal. The locking element has a locking part. The locking part is connected to the second connecting part to lock on the circuit substrate.Type: ApplicationFiled: September 28, 2018Publication date: December 5, 2019Inventors: Lei-Ming LEE, Xin-Hung LIN
-
Patent number: 10148222Abstract: An inverter apparatus includes a first capacitor, a second capacitor, a first switch, a second switch, a third switch, a fourth switch, a first inductor and a second inductor. The first capacitor, the second capacitor, the first switch, the third switch and the first inductor form and have functions of a half bridge inverter. The first capacitor, the second capacitor, the second switch, the fourth switch and the second inductor form and have functions of a half bridge inverter. Therefore, the present invention obtains two kinds of voltages.Type: GrantFiled: April 15, 2016Date of Patent: December 4, 2018Assignee: DELTA ELECTRONICS, INC.Inventors: Lei-Ming Lee, Chen-Wei Ku, Xin-Hung Lin
-
Publication number: 20180040444Abstract: A smart switch system (20) includes a smart switch box (10). The smart switch box (10) includes a switch box output side (102), an output-side voltage detection unit (104), a switch control unit (106), a switch unit (108) and a switch box input side (110). The output-side voltage detection unit (104) detects a voltage of the switch box output side (102) and informs the switch control unit (106) of the voltage of the switch box output side (102). According to the voltage of the switch box output side (102), the switch control unit (106) turns on or off the switch unit (108). When the switch control unit (106) turns on the switch unit (108), an input voltage (112) sent from a direct-current voltage generation apparatus (50) is sent to the switch box output side (102) through the switch box input side (110) and the switch unit (108).Type: ApplicationFiled: December 1, 2016Publication date: February 8, 2018Inventors: Chen-Wei KU, Lei-Ming LEE, Xin-Hung LIN
-
Publication number: 20170093332Abstract: An inverter apparatus includes a first capacitor, a second capacitor, a first switch, a second switch, a third switch, a fourth switch, a first inductor and a second inductor. The first capacitor, the second capacitor, the first switch, the third switch and the first inductor form and have functions of a half bridge inverter. The first capacitor, the second capacitor, the second switch, the fourth switch and the second inductor form and have functions of a half bridge inverter. Therefore, the present invention obtains two kinds of voltages.Type: ApplicationFiled: April 15, 2016Publication date: March 30, 2017Inventors: Lei-Ming LEE, Chen-Wei KU, Xin-Hung LIN
-
Patent number: 9071163Abstract: A hybrid DC-to-AC conversion system includes a first DC input voltage, a second DC input voltage, a power conversion apparatus, and a comparison unit. The power conversion apparatus is connected in parallel to the first DC input voltage and the second DC input voltage to convert the first DC input voltage or the second DC input voltage into an AC output voltage. The comparison unit receives the AC output voltage and an external reference voltage. The comparison unit outputs a control signal to make the first DC input voltage supply a load when an absolute value of the AC output voltage is less than or equal to the external reference voltage, whereas the comparison unit outputs the control signal to make the second DC input voltage supply the load when the absolute value of the AC output voltage is greater than the external reference voltage.Type: GrantFiled: September 11, 2012Date of Patent: June 30, 2015Assignee: DELTA ELECTRONICS, INC.Inventors: Chen-Wei Ku, Lei-Ming Lee, Ho Huang
-
Patent number: 9019736Abstract: A DC-to-AC power conversion system is provided to convert a DC input voltage into an AC output voltage, which mainly includes a bridge switching circuit, an auxiliary switch circuit, and a control circuit. The bridge switching circuit has a first power switch, a second power switch, a third power switch, and a fourth power switch. The auxiliary switch circuit has a fifth power switch, a sixth power switch, a seventh power switch, and an eighth power switch. The control circuit produces a complementary switching signal pair to control the first and fourth power switches and the second and third power switches, respectively. In addition, the control circuit produces a complementary level signal pair to control the sixth and seventh power switches and the fifth and eighth power switches, respectively.Type: GrantFiled: July 12, 2013Date of Patent: April 28, 2015Assignee: Delta Electronics, Inc.Inventors: Lei-Ming Lee, Chen-Wei Ku, Ho Huang
-
Patent number: 8988915Abstract: A DC to AC converter includes a first switch, a second switch, a first half bridge inverter, and a second half bridge inverter. The first switch includes a first terminal and a second terminal. The second switch includes a first terminal and a second terminal. A portion between the first terminal of the first switch and the first terminal of the second switch is operable to receive a direct current power source. The first half bridge inverter includes a first terminal, a second terminal, and an output terminal. The second half bridge inverter includes a first terminal, a second terminal, and an output terminal. A portion between the output terminal of the first half bridge inverter and the output terminal of the second half bridge inverter is operable to output an alternative current.Type: GrantFiled: January 17, 2012Date of Patent: March 24, 2015Assignee: Delta Electronics, Inc.Inventors: Chen-Wei Ku, Lei-Ming Lee
-
Publication number: 20150060036Abstract: An assembled aluminum extrusion heat dissipator includes a heat-conducting plate and a plurality of U-shaped heat-dissipating members. The surface of the heat-conducting plate has a plurality of slots, and each of the slots extends from one side of the heat-conducting plate to another corresponding side. The U-shaped heat-dissipating member has a U-shaped body and a plurality of heat-dissipating fins, and the U-shaped body having a bottom plate and a pair of lateral plates, wherein the distance between the pair of lateral plates is corresponding to the distance of the two adjacent slots, so that the pair of lateral plates insert into the two adjacent slots, and the U-shaped heat-dissipating member integrates with the heat-conducting plate.Type: ApplicationFiled: October 31, 2013Publication date: March 5, 2015Applicant: DELTA ELECTRONICS, INC.Inventors: Lei-Ming LEE, Chia-Hao YEH