Abstract: A power adapter includes a power converting circuit, a current detecting circuit, and a controlling unit. A charging voltage with a constant voltage level is provided by the hub through the connecting ports. The current detecting circuit is used for detecting a load current and outputting a corresponding current detecting signal. The load current is transmitted from the power converting circuit to the hub through the power cable. A look-up table is stored in the controlling unit for recording a relationship between the load current and a voltage drop across an impedance of the power cable. According to the current detecting signal and the look-up table, the controlling unit issues a feedback signal to the power converting circuit. According to the feedback signal, a level of the output voltage is dynamically adjusted to be equal to the sum of the voltage drop and the charging voltage.

Abstract: A power connector assembly includes an appliance plug and an adapter plug. The appliance plug has at two first contact terminals, wherein each of the first contact terminals has a perforation. The adapter plug includes a casing, a switching element, at least two second contact terminals, and at least two locking elements. Each of the locking elements has a protrusion part. When the switching element is located at a first position, the protrusion part of the locking element is accommodated within the perforation of the corresponding first contact terminal, so that the locking element is in a locked state. In the locked state, the first contact terminal and the corresponding locking element are coupled with each other and the first contact terminal and the corresponding second contact terminal are electrically connected with each other.

Abstract: A cable winding device comprises a case, a reel disc, a cable, and a cable locking structure. The case comprises a first case element and a second case element. The reel disc is disposed between the first case element and the second case element, wherein the reel disc has a leaf spring. The cable is wound on the reel disc. The cable locking structure has a fixing part and at least partially penetrates the first case element and the reel disc. When a pulling operation of the cable causes the leaf spring to be sustained against the fixing part, a desired length of the cable is pulled out from the case and locked. When the cable locking structure is pressed and the fixing part is detached from the leaf spring, the cable pulled outside the case is rewound on the reel disc.

Abstract: An integrated electric connector includes a main body, a first electric connector, a casing, a second electric connector, a third electric connector, and a guiding member. The first electric connector is at least partially protruded from the main body and connected with a transmission cable. The second electric connector is installed in the casing, and connectable with the first electric connector. The third electric connector is disposed on the casing and connected with the second electric connector. The guiding member is connected with the casing. The first electric connector is guided by the guiding member to be detachably connected with the second electric connector. The first electric connector is directly connected with the electronic device, or the first electric connector is indirectly connected with the electronic device through the second electric connector and the third electric connector.

Abstract: An integrated electric connector includes a main body, a first electric connector, a casing, a second electric connector, a third electric connector, and a guiding member. The first electric connector is at least partially protruded from the main body and connected with a transmission cable. The second electric connector is installed in the casing, and connectable with the first electric connector. The third electric connector is disposed on the casing and connected with the second electric connector. The guiding member is connected with the casing. The first electric connector is guided by the guiding member to be detachably connected with the second electric connector. The first electric connector is directly connected with the electronic device, or the first electric connector is indirectly connected with the electronic device through the second electric connector and the third electric connector.

Abstract: A power module includes a power conversion circuit, a fan, a controlling unit, a capacitor, a current-adjusting element and a soft start controlling unit. The power conversion circuit is used for outputting a DC voltage. The fan is connected with the power conversion circuit. The controlling unit is used for issuing a control signal to the fan, thereby controlling operation of the fan. The capacitor is connected with the fan in parallel. The current-adjusting element is connected with the capacitor in series for adjusting the magnitude of current flowing through the capacitor. The soft start controlling unit is connected with the current-adjusting element. When the power module is connected with a connector of a power supply system, the soft start controlling unit controls the magnitude of current flowing through the current-adjusting element to be gradually increased, so that the magnitude of current flowing through the capacitor is gradually increased.

Abstract: A backflow prevention device includes at least one backflow prevention unit. The backflow prevention unit includes a frame, a first edge shutter plate, a second edge shutter plate and plural intermediate shutter plates. The frame includes an airflow channel. If the first inner sidewall is disposed over the second inner sidewall, the first edge shutter plate and the plural intermediate shutter plates are configured to open or close the airflow channel, and the slab of the second edge shutter plate is inactive. Whereas, if the second inner sidewall is disposed over the first inner sidewall, the second edge shutter plate and the plural intermediate shutter plates are configured to open or close the airflow channel, and the slab of the first edge shutter plate is inactive.

Abstract: A magnetic device includes a magnetic core assembly and at least one conductive winding assembly. The magnetic core assembly includes a first magnetic core and a second magnetic core. The first magnetic core includes a first magnetic slab, a first lateral post and a second lateral post. The first lateral post and the second lateral post are disposed on opposite sides of the first magnetic slab so that an accommodating space is collectively defined by the first magnetic slab, the first lateral post and the second lateral post. The second magnetic core includes a second magnetic slab and a middle post. The middle post is attached on the second magnetic slab, and received within the accommodating space of the first magnetic core. The at least one conductive winding assembly is directly wound around the middle post of the second magnetic core.

Abstract: A power supply circuit includes a first-stage circuit and a second-stage circuit. The first-stage circuit is used for converting an input voltage into a DC voltage. The second-stage circuit includes a main power conversion circuit for converting the DC voltage into a first output voltage, a first standby power conversion circuit for converting the DC voltage into a second output voltage, a feedback circuit for generating a feedback signal, a second standby power conversion circuit and a power distribution circuit. The magnitude of the second output voltage is adjusted by the first standby power conversion circuit according to the feedback signal. The second standby power conversion circuit is used for converting the first output voltage or the second output voltage into a standby voltage. The power distribution circuit is used for selectively delivering the first output voltage or the second output voltage to the second standby power conversion circuit.

Abstract: Disclosed is a firmware update system for a micro-controller unit in a power supply unit. The micro-controller unit includes a central processing unit and a flash memory connected to the central processing unit. The flash memory includes a boot program sector, a main program sector, and a temporary data sector, where the boot program sector contains a boot program and the main program sector contains a main program to be executed by the central processing unit under a normal operating mode, and the temporary data sector is set to contain a downloaded firmware code to be copied to the main program sector to replace the main program, thereby updating the flash memory. The downloaded firmware code contains a sector checksum value and a firmware signature for allowing the boot program to validate if the downloaded firmware code is valid and authentic, and the boot program sector and the main program sector are accessed by a virtual address.

Abstract: A case structure includes a first housing and a fan frame fixing module. The fan frame fixing module includes a fan frame, a positioning part and an auxiliary part. The positioning part is disposed on the first housing. The auxiliary part is disposed on the first housing. The fan frame urges against the first housing and the positioning part, and the auxiliary part urges against the fan frame so that the fan frame is fixed on the first housing.

Abstract: A fastening mechanism for fastening a detachable electronic device onto a DIN rail includes a frame, a first slab member and a first resilient element. The frame includes a base, a first extension part and a second extension part. The first extension part and the second extension part are arranged at bilateral sides of the base. A first perforation is formed between the first extension part and the base. The first slab member is movable along the bottom surface of the first extension part and has an end penetrating through the first perforation to be disposed over the base. The first resilient element is coupled to the first slab member and exerts a clamping force for claming a first extending edge of the DIN rail between the first slab member and the base.

Abstract: An electronic device includes a circuit board and a power connection interface. The power connection interface is formed on an edge region of the circuit board. The power connection interface includes a first trace portion for transmitting a DC voltage and second and third trace portions for transmitting an AC voltage. Plural trace wires of the first trace portion are arranged on first and second surfaces of the edge region. The second and third trace portions are arranged on opposite surfaces of the edge region.

Abstract: An electronic device swappable to be embedded into a system cabinet includes a casing and a locking element. The casing includes a first sidewall and a second sidewall, which have a first opening and a second opening, respectively. The locking element includes a first end part, a protrusion part, a bent part and a second end part. The first end part is fixed on an inner surface of the second sidewall of the casing. The protrusion part is partially exposed from the second opening to be engaged with a receiving structure of the system cabinet. The bent part is arranged between the first end part and the protrusion part. The second end part is exposed from the first opening so as to be protruded from the first sidewall of the casing.

Abstract: A power supply apparatus for use with a redundant power supply system includes a casing, a main circuit board and an airflow driving device. The casing includes a first airflow opening and a second airflow opening. The main circuit board is disposed within the casing and includes plural electronic components thereon. The airflow driving device is disposed in the middle region of the main circuit board. A cooling air is pumped by the airflow driving device to be introduced into the inner portion of the casing through one of the first airflow opening and the second airflow opening, then the heat generated from the electronic components is removed by the cooling air, and finally a heated air is exhausted through the other one of the first airflow opening and the second airflow opening.

Abstract: A redundant power supply system includes a system cabinet, a first power supply apparatus, a second power supply apparatus and a power converting circuit board. The system cabinet at least includes a first receptacle and a second receptacle. The first power supply apparatus has a first connection interface. The second power supply apparatus has a second connection interface. The power converting circuit board is disposed inside the system cabinet and includes a first insertion slot, a second insertion slot and a power converting circuit. A voltage outputted from the first power supply apparatus and/or the second power supply apparatus is converted by the power converting circuit into a regulated voltage when the first connection interface of the first power supply apparatus and the second connection interface of the second power supply apparatus are inserted into the first insertion slot and the second insertion slot, respectively.

Abstract: An electronic device swappable to be embedded into a system cabinet includes a casing and a locking element. The casing includes a first sidewall and a second sidewall, which have a first opening and a second opening, respectively. The locking element includes a first end part, a protrusion part, a bent part and a second end part. The first end part is fixed on an inner surface of the second sidewall of the casing. The protrusion part is partially exposed from the second opening to be engaged with a receiving structure of the system cabinet. The bent part is arranged between the first end part and the protrusion part. The second end part is exposed from the first opening so as to be protruded from the first sidewall of the casing.

Abstract: A redundant power supply system includes a system cabinet, a first power supply apparatus, a second power supply apparatus and a power converting circuit board. The system cabinet at least includes a first receptacle and a second receptacle. The first power supply apparatus has a first connection interface. The second power supply apparatus has a second connection interface. The power converting circuit board is disposed inside the system cabinet and includes a first insertion slot, a second insertion slot and a power converting circuit. A voltage outputted from the first power supply apparatus and/or the second power supply apparatus is converted by the power converting circuit into a regulated voltage when the first connection interface of the first power supply apparatus and the second connection interface of the second power supply apparatus are inserted into the first insertion slot and the second insertion slot, respectively.

Abstract: An electronic device includes a circuit board and a power connection interface. The power connection interface is formed on an edge region of the circuit board. The power connection interface includes a first trace portion for transmitting a DC voltage and second and third trace portions for transmitting an AC voltage. Plural trace wires of the first trace portion are arranged on first and second surfaces of the edge region. The second and third trace portions are arranged on opposite surfaces of the edge region.