摘要:
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.
摘要:
A power supply system with an automatic transfer function includes a main-power-loop apparatus, a backup-power-loop apparatus, and a control unit. The main-power-loop apparatus has a first primary relay switch and a first SCR switch. The backup-power-loop apparatus has a second primary relay switch and a second SCR switch. The control unit turns on the first primary relay switch and the first SCR switch when a main power source can normally supply power, thus supplying power to a load via the main-power-loop apparatus by the main power source. The control unit turns on the second primary relay switch and the second SCR switch when the main power source cannot normally supply power, thus supplying power to the load via the backup-power-loop apparatus by a backup power source.
摘要:
A extension case adaptable onto a mobile terminal device to enable extended functions, includes a sheath, an electrical connector, a battery, and a radio frequency identification (RFID) antenna. The sheath is configured to shieldingly receive the mobile terminal device and comprises a covering portion and a buckling portion curvedly extended from an outer edge of the covering portion. The electrical connector is arranged on the buckling portion of the sheath for establishing electrical connection with the mobile terminal device. The battery is disposed on the covering portion and is accessible to the mobile terminal device through the electrical connector. The RFID antenna is electrically connected to the electrical connector and embeddedly disposed in the covering portion adjacent to the battery in a non-overlapping manner.
摘要:
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.
摘要:
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.
摘要:
The present disclosure provides an integrated circuit design method. In an example, a method includes receiving an integrated circuit design layout that includes an active region feature, a contact feature, and an isolation feature, wherein a portion of the active region feature is disposed between the contact feature and the isolation feature; determining whether a thickness of the portion of the active region feature disposed between the contact feature and the isolation feature is less than a threshold value; and modifying the integrated circuit design layout if the thickness is less than the threshold value, wherein the modifying includes adding a supplementary active region feature adjacent to the portion of the active region feature disposed between the contact feature and the isolation feature.
摘要:
A transformer can be mounted on a circuit board. The circuit board includes a high-voltage line and a load. The transformer includes a bobbin used for winding a coil. The bobbin includes a first secondary area. A first secondary high voltage pole extends from the first secondary area. A first secondary high voltage pin is fixed on an end of the first secondary high voltage pole away from the first secondary area. The bobbin is made of an insulator. The first secondary high voltage pin is made of a conductor. The high voltage end of the coil is disposed on a top surface of the first secondary high voltage pole and electrically connected to the first secondary high voltage pin. The first secondary high voltage pole is capable of jumping across the high-voltage line to make the first secondary high voltage pin to electrically connect to the load.
摘要:
The present invention provides a guidance system and a guidance method for taking public transportation, which comprise a mobile device having a mobile positioning unit and a mobile interface unit. After the mobile interface unit receives destination information, the mobile positioning unit produces text guidance information according to location information and the destination information. The mobile interface unit displays the text guidance information for guiding people the way to the platform of the public transportation and helping people to confirm the public transportation to take.
摘要:
A light emitting diode (LED) driving device for driving a plurality of LED strings includes a power stage circuit, a plurality of fly-back transformers, and a controller circuit. The power stage circuit outputs direct current (DC) voltage signals. Each of the plurality of fly-back transformers includes a primary winding connected to the power stage circuit and a secondary winding connected to a diode and one of the plurality of LED strings to form a series loop. The controller circuit controls the plurality of fly-back transformers to synchronously work in a discontinuous current mode to make the plurality of LED strings have the same current.
摘要:
An electro-magnetic interference device attached to a surface of an object by soldering is disclosed. The device comprises a base comprising a surface defining at least one recessed portion. The at least one recessed portion comprises a side wall. An angle between the side wall and the surface of the base is equal to or greater than 90 degrees.