Abstract: The present invention provides an electric power dispatching system and an electric power dispatching method. The electric power dispatching system has a plurality of accommodating spaces, a DC bus, an AC/DC power conversion device, and an energy control center. The swappable battery pack in each accommodating space is coupled to the DC bus, and the AC/DC power conversion device is coupled between the DC bus and a power grid. The electric power dispatching method includes centrally storing a plurality of swappable battery packs from different electric vehicles; and controlling the AC/DC power conversion device and each swappable battery pack located in each accommodating space by an energy control center to designate a part of the swappable battery packs located in the accommodating spaces to participate in a first power dispatch task so as to provide power dispatch to the power grid.

Abstract: The present invention provides an electric power dispatching system and an electric power dispatching method. The electric power dispatching system has a plurality of accommodating spaces, a DC bus, an AC/DC power conversion device, and an energy control center. The swappable battery pack in each accommodating space is coupled to the DC bus, and the AC/DC power conversion device is coupled between the DC bus and a power grid. The electric power dispatching method includes centrally storing a plurality of swappable battery packs from different electric vehicles; and controlling the AC/DC power conversion device and each swappable battery pack located in each accommodating space by an energy control center to designate a part of the swappable battery packs located in the accommodating spaces to participate in a first power dispatch task so as to provide power dispatch to the power grid.

Abstract: An AC charging system for electric vehicles, which cooperates with a power grid, includes a power detecting module, a local power supplying module, and a local charging control module. The power detecting module is coupled with a second area power converting device of the power grid to generate power parameters. The local power supplying module is coupled to the power output side of the second area power converting device of the power grid for outputting a controllable power source to the electric vehicle. The local charging control module is coupled to the power detecting module and the local power supplying module, and controls each controllable power source provided by the local power supplying module according to power parameters. Accordingly, when a large number of electric vehicles use AC charging at the same time, it can avoid the power supply of the grid being affected by the overload of electricity.

Abstract: A power maintaining method of electric vehicle includes the following step. In step 01, an energy power is provided by a main battery pack to drive a first electric vehicle (EV) moving to a first power supply station. In step 02, a first swappable battery pack is installed on the first EV at the first power supply station, and the first swappable battery pack is electrically connected to the main battery pack of the first EV so that the main battery pack is charged by the first swappable battery pack. In step 03, the first EV is driven to a second power supply station from the first power supply station. In step 04, the first swappable battery pack is uninstalled from the first EV at the second power supply station. In addition, an electric vehicle and a power supply station is disclosed in the present application.

Abstract: A control method for a swappable battery pack set of electric vehicles (EVs), wherein each of the EVs has a main battery pack set and at least a swappable battery pack set simultaneously. The control method includes the following process of uninstalling the swappable battery pack set from a first EV, before charging the swappable battery pack set; executing a charge unlocking process, before charging the swappable battery pack set; executing a charge locking process, after charging the swappable battery pack set; and installing the swappable battery pack set to a second EV after executing the charge locking process.

Abstract: A control method for a swappable battery pack set of electric vehicles (EVs), wherein each of the EVs has a main battery pack set and at least a swappable battery pack set simultaneously. The control method comprises the following process of uninstalling the swappable battery pack set from a first EV, before charging the swappable battery pack set; executing a charge unlocking procedure, before charging the swappable battery pack set; executing a charge locking procedure, after charging the swappable battery pack set; and installing the swappable battery pack set to a second EV after executing the charge locking procedure.

Abstract: A power maintaining method of electric vehicle includes the following step. In step 01, an energy power is provided by a main battery pack to drive a first electric vehicle (EV) moving to a first power supply station. In step 02, a first swap battery pack is installed on the first EV at the first power supply station, and the first swap battery pack is electrically connected to the main battery pack of the first EV so that the main battery pack is charged by the first swap battery pack. In step 03, the first EV is driven to a second power supply station from the first power supply station. In step 04, the first swap battery pack is uninstalled from the first EV at the second power supply station. In addition, an electric vehicle and a power supply station is disclosed in the present application.

Abstract: A junction box connected to a plurality of solar cell panels connected in series and under control a control device, includes a plurality of diodes, two ports, a switch, and a communication module. The plurality of diodes is forwardly connected in series to form a diode string with two ends, and each of the plurality of diodes is electrically connected to a corresponding one of the plurality of solar cell panels in parallel. The two ports are respectively connected to the two ends of the diode string and the plurality of solar cell panels, and output DC power of the plurality of solar cell panels. The switch is connected between the diode string and the two ports. The communication module is connected to the switch, and receives control signals from the control device to turn on or off the switch to control output of the DC power of the solar cell panels from the two ports.

Abstract: A photovoltaic junction box includes a housing, a circuit board received in the housing, a plurality of metal brackets, and a plurality of bypass diodes. The plurality of metal brackets are secured to the circuit board, each of the plurality of metal brackets defines a receiving space receiving a spring sheet. The plurality of bypass diodes are respectively secured to the plurality of metal brackets and electrically connected to the circuit board. Each of a plurality of ribbons is clamped between the spring sheet and a corresponding metal bracket, and the ribbon directly and electrically contacts the corresponding metal bracket.

Abstract: A multi-lamp driving system includes a power stage circuit, a pulse width modulation (PWM) controller, a plurality of transformer circuits, and an abnormal detection circuit. Each of the transformer circuits includes a first primary winding and a second primary winding connected in series and a first secondary winding and a second secondary winding respectively outputting AC power signals to drive at least one lamp. The abnormal detection circuit is connected to a junction of the first primary winding and the second primary winding of each of the transformer circuits, and determines if voltages of the junction of the first primary winding and the second primary winding of each of the transformer circuits are different to determine if the at least two lamps are normal. The abnormal detection circuit further generate control signals to control the PWM controller upon the condition that one of the at least two lamps are abnormal.

Abstract: A junction box electronically connected to a solar panel and connected to a plurality of solar cell strings connected in series includes a first bypass diode string and at least one second bypass diode. The first bypass diode string includes a plurality of first bypass diodes forwardly connected in series, and each of the plurality of first bypass diodes is connected to a corresponding one of the plurality of solar cell strings in parallel. The at least one second bypass diode connected to at least two neighboring solar cell strings in parallel, turns on to bypass the at least two neighboring solar cell strings upon the condition that the at least two neighboring solar cell strings are abnormal simultaneously.

Abstract: A power supply system includes an electromagnetic interference (EMI) filter circuit, a rectifier and filter circuit, a switch circuit, a transformer, a feedback circuit and a controller. The feedback circuit includes a voltage divider circuit, a filter circuit, and a voltage and temperature compensation circuit. The voltage divider circuit generates a voltage dividing signal, and includes a first lossless element and a second lossless element connected in series between an output of the transformer and the ground, and the voltage dividing signal is generated at a node of the first and second lossless elements. The filter circuit filters the voltage dividing signal into a direct current (DC) signal. The voltage and temperature compensation circuit does voltage compensation and temperature compensation to the DC signal to generate a feedback signal, and sends the feedback signal to the controller.

Abstract: A photovoltaic junction box includes a housing, a circuit board received in the housing, a plurality of metal brackets, and a plurality of bypass diodes. The plurality of metal brackets are secured to the circuit board, each of the plurality of metal brackets defines a receiving space receiving a spring sheet. The plurality of bypass diodes are respectively secured to the plurality of metal brackets and electrically connected to the circuit board. Each of a plurality of ribbons is clamped between the spring sheet and a corresponding metal bracket, and the ribbon directly and electrically contacts the corresponding metal bracket.

Abstract: A photovoltaic junction box includes a housing, a circuit board received in the housing, a plurality of metal brackets, and a plurality of bypass diodes. The plurality of metal brackets are secured to the circuit board. The plurality of bypass diodes are respectively secured to the plurality of metal brackets and electrically connected to the circuit board.

Abstract: A junction box electronically connected to a solar panel and connected to a plurality of solar cell strings connected in series includes a first bypass diode string and at least one second bypass diode. The first bypass diode string includes a plurality of first bypass diodes forwardly connected in series, and each of the plurality of first bypass diodes is connected to a corresponding one of the plurality of solar cell strings in parallel. The at least one second bypass diode connected to at least two neighboring solar cell strings in parallel, turns on to bypass the at least two neighboring solar cell strings upon the condition that the at least two neighboring solar cell strings are abnormal simultaneously.

Abstract: A multi-lamp driving system includes a power stage circuit, a pulse width modulation (PWM) controller, a plurality of transformer circuits, and an abnormal detection circuit. Each of the transformer circuits includes a first primary winding and a second primary winding connected in series and a first secondary winding and a second secondary winding respectively outputting AC power signals to drive at least one lamp. The abnormal detection circuit is connected to a junction of the first primary winding and the second primary winding of each of the transformer circuits, and determines if voltages of the junction of the first primary winding and the second primary winding of each of the transformer circuits are different to determine if the at least two lamps are normal. The abnormal detection circuit further generate control signals to control the PWM controller upon the condition that one of the at least two lamps are abnormal.

Abstract: A bypass protection circuit connected to a light emitting diode (LED) group in parallel, comprises a switch circuit and a capacitor. The switch circuit comprises a plurality of switch components, an abnormal detection module and a switch control module. The abnormal detection module detects voltage of the LEDs respectively, and determines which one is broken and outputs an abnormal signal. The switch control module controls a switch component connected to the broken LED in parallel on/off according to the abnormal signal. The capacitor is charged by driving signals of the LEDs when the LEDs are operated according to a normal working mode or a first status of a burst dimming mode, and is discharged to maintain an operating power of the switch circuit when the LEDs are operated according to a second status of the burst dimming mode.

Abstract: A power supply system includes an electromagnetic interference (EMI) filter circuit, a rectifier and filter circuit, a switch circuit, a transformer, a feedback circuit and a controller. The feedback circuit includes a voltage divider circuit, a filter circuit, and a voltage and temperature compensation circuit. The voltage divider circuit generates a voltage dividing signal, and includes a first lossless element and a second lossless element connected in series between an output of the transformer and the ground, and the voltage dividing signal is generated at a node of the first and second lossless elements. The filter circuit filters the voltage dividing signal into a direct current (DC) signal. The voltage and temperature compensation circuit does voltage compensation and temperature compensation to the DC signal to generate a feedback signal, and sends the feedback signal to the controller.

Abstract: A flyback converter having a leading edge blanking (LEB) element keeps detecting whether or not primary-side current of the flyback converter reaches a predetermined threshold, beyond which the flyback converter could be damaged, in a predetermined LEB time corresponding to a leading edge of primary-side current. The flyback converter is turned off when the primary-side current exceeds the predetermined threshold.

Abstract: A power supply system for a display device includes a switch circuit, a transformer and an output filter circuit connected in series, and a controller connected to the switch circuit. The power supply system also comprises a transforming circuit and a superposition circuit. The transforming circuit adjusts amplitude of scanning signals generated by a scanning circuit to generate adjusted scanning signals. The superposition circuit samples high voltage output power signals output by the output filter circuit, superposes the sampled high voltage output power signals and the adjusted scanning signals together to generate a superposition signal, and sends the superposition signal to the controller.