Delta Electronics, Inc.

Lei-Ming Lee

Chen-Wei Ku

Xin-Hung Lin

Ho Huang

Jianping Ying

Wen-Yin Tsai

Jingtao Tan

Wen-Yu Huang

Chih-Chang Li

Degang Yi

Fei Lv

Hung-Chuan Lin

Chih-Chang Lee

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.

Connector assembly

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.

Solar power generation system and test method

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.

Connection structure of inductive element

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.

Safety shutdown apparatus with self-driven control, power supply system, and method of controlling the same

A hybrid drive circuit (') 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 (&#x2032;) includes a first turn-on path (Pc), a first turn-off path (Ps), a second turn-on path (Pc), and a second turn-off path (Ps). The first turn-on path (Pc) and the second turn-on path (Pc) produce a first delay time to delay turning on the first characteristic transistor. The first turn-off path (Ps) and the second turn-off path (Ps) produce a second delay time to delay turning off the second characteristic transistor.

Hybrid drive circuit

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.

Inverter device having heat dissipation mechanism

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.

Inverter apparatus and solar energy grid-connected power generation system

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.

Hybrid DC-to-AC conversion system and method of operating the same

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.

DC-to-AC power conversion system and method of operating the same

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.

DC to AC converter

A power management apparatus and a method of operating the same are disclosed. The power management apparatus includes a power conversion unit, a first sensing unit, a second sensing unit, a switch unit, and a control unit. The power conversion unit converts output power generated from at least one renewable energy generation apparatus. The first sensing unit is provided to sense a first current and a first voltage and the second sensing unit is provided to sense a second current and a second voltage. The control unit acquires an output power generated from the renewable energy generation apparatus and acquires a feedback power to an AC utility according to the currents and the voltages when the control unit turns on the switch unit.

Power management apparatus and method of operating the same

An inverter including a switch circuit for converting a DC power to output an AC voltage between a first output terminal and a second output terminal is provided. The switch circuit includes a first switch branch having a first switch element, a second switch element, and a third switch element; a second switch branch having a fourth switch element, a fifth switch element, and a sixth switch element; a first freewheeling unit connected to the first switch element, the second switch element, and the second output terminal for providing a freewheeling path between the second output terminal and the first switch element and the second switch element; and a second freewheeling unit connected to the fourth switch element and the fifth switch element and the first output terminal for providing a freewheeling path between the first output terminal and the fourth switch element and the fifth switch element.

Inverter for preventing leak current

Disclosed is a DC-AC converter including a switch circuit for converting the DC power to output an AC voltage between a first output terminal and a second output terminal. The switch circuit includes a first switch branch having a first switch element and a second switch element; a second switch branch having a third switch element, a fourth switch element, and a fifth switch element; and a sixth switch element having one end connected between the third switch element and the fourth switch element and the other end connected between the first switch element and the second switch element. The first switch element, the second switch element, the third switch element, the fourth switch element, the fifth switch element, and the sixth switch element are configured to turn on/off to enhance the conversion efficiency of the DC-AC converter and subdue the occurrence of leak current in the DC-AC converter.

DC-AC converter

The configurations of an inverter circuit are provided in the present invention. The proposed circuit includes a first bridge arm having a first sub-bridge arm with a first switch and a first middle point coupled to the first switch, and a second sub-bridge arm with a second switch and a second middle point coupled to the second switch, a first inductor having a first terminal coupled to the first middle point and a second terminal, and a second inductor having a first terminal coupled to the second middle point, and a second terminal coupled to the second terminal of the first inductor and outputting an AC voltage.

Inverter circuit having relatively higher efficiency

A DC-to-AC converting circuit includes a transformer, a first modulation switching circuit, a second modulation switching circuit and a third modulation switching circuit, an inverter switching circuit and a controlling unit. Under control of the controlling unit, two of the first, second and third modulation switching circuits are selectively enabled according to the magnitude of the input voltage, so that electric energy of the input voltage is magnetically transmitted to the first primary winding, a second primary winding or a serially-connected winding assembly of the first primary winding and the second primary winding, and a turn ratio of the transformer is adjustable.

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Taoyuan, Taiwan

Lei-Ming Lee