Abstract: The application discloses a cabinet system of a data center, including: a cabinet body, including a plurality of rack modules between a front side thereof and a rear side thereof; a plurality of data server hosts, detachably installed on the corresponding rack modules; and a power supply module, disposed on the corresponding rack module in the cabinet body, and coupled to at least one of the data server hosts. The power supply module includes a standardized frame compliant with a first specification. The standardized frame includes an accommodating groove for plug-in assembly of a power core unit having different parameters (e.g., output powers or dimension specifications). Thus, the power core unit having different parameters can be assembled through the standardized frame, providing the cabinet system with flexible configuration of power supplies as well as convenient maintenance or replacement.

Abstract: An USB hub including a power input port, a main power converting circuit, a first and a second type-C USB ports, and a first and a second power converting circuits is provided. The power input port receives an input power. The main power converting circuit converts the input power into a main power. The first and the second power converting circuits receive the main power respectively, and are coupled to the first and the second type-C USB ports respectively. The first and the second power converting circuits respectively obtain a first and a second operation power information of a first and a second external electronic devices, and respectively generate and provide a first and a second operating powers required by the first and the second external electronic devices for normal operation according to the first and the second operation power information.

Abstract: A rectifier, including: a first and a second input terminal, a first output terminal and at least one rectifying circuit. Each rectifying circuit including: a switching circuit including a transistor, and a driving circuit. The driving circuit is coupled to the switching circuit and controls a switching status of the switching circuit, and includes a totem-pole circuit and an input transistor. The totem-pole circuit includes an input terminal and an output terminal coupled to the transistor. The input transistor is coupled between the totem-pole circuit and the switching circuit. The at least one rectifying circuit includes a first and a second rectifying circuit. The transistors of the first rectifying circuit and the second rectifying circuit are coupled to the first output terminal. The input transistors of the first rectifying circuit and the second rectifying circuit are coupled to the first input terminal and the second input terminal, respectively.

Abstract: The disclosure provides a power supply fixing structure suitable for connecting an elongated type power supply to a connection structure of a casing. The power supply fixing structure includes a connecting component and an interconnect structure formed at an outer casing of the elongated type power supply. The connecting component includes a first connecting part for connecting to a connection structure and a second connecting part for connecting to the interconnect structure.

Abstract: A casing including a first body and a locking plate is provided, the locking plate is installed to the first body, and the locking plate extends inward to form a frame, so as to lock the casing to a main chassis of a desktop computer. Compared with the existing technique, the casing is directly locked to the main chassis of the desktop computer from exterior to interior through the locking plate, i.e. the casing is adapted to install the redundant power supply without changing an internal configuration of the main chassis or changing an outline dimension of the main chassis or the casing. Moreover, in terms of material purchase, it is unnecessary to purchase casings of other dimensions, but only one type of casings are used to produce general power supplies and redundant power supplies, so as to effectively save the manufacturing cost. Moreover, a redundant power supply is provided.

Abstract: A power supply system includes at least a first power supply and a second power supply and a voltage output circuit. The first power supply provides a first set of signals while the second power supply provides a second set of signals. The voltage output circuit includes a first input terminal, a second input terminal, a first output terminal, a switch circuit and a control circuit. The first input terminal receives a first voltage signal of the first set of signals while the second input terminal receives a second voltage signal of the second set of signals, the switching circuit couples between the first and the second input terminal and the first output terminal, and the control circuit activates a first or second transistor according to a voltage difference between the first and second input terminal to generate a first output voltage signal on the first output terminal.

Abstract: A testing power reuse system including a testing device, a virtual currency calculating circuit, and a power reuse circuit is provided. The power reuse circuit is coupled to the testing device through a first interface circuit and is coupled to the virtual currency calculating circuit through a second interface circuit. The power reuse circuit is configured to receive power generated by performing a testing operation on the testing device through the first interface circuit and provide the power to the virtual currency calculating circuit through the second interface circuit. The virtual currency calculating circuit is driven by the power to perform a virtual currency calculating operation. A power reuse circuit and a testing power reuse method are also provided.

Abstract: A power adapter including a main circuit board and an auxiliary circuit board is provided. The main circuit board has a first surface and a second surface opposite to each other, and the first surface of the main circuit board is configured with a transformer and a first capacitor. The auxiliary circuit board has a first surface and a second surface opposite to each other, and the first surface of the auxiliary circuit board is configured with an input rectifier filter circuit, where the auxiliary circuit board is disposed in parallel above the main circuit board, and the input rectifier filter circuit of the auxiliary circuit board is electrically connected to the first capacitor of the main circuit board. Under a condition of same electrical parameters and dimensions, the volume of the power adapter of the invention is only a half of that of the existing power adapter, which satisfies a demand for miniaturization of the electronic devices.

Abstract: A method for controlling a fan speed of an electronic apparatus and the electronic apparatus using the same are provided. The method includes: detecting an input voltage, an output current, and a working temperature of the electronic apparatus; calculating a target speed of the fan according to the input voltage, the output current, and the working temperature; providing a speed control signal indicating the target speed to drive the fan and obtaining a fan speed signal indicating an actual speed of the fan; and performing a close-loop control based on the fan speed signal, so that the actual speed is adjusted to the target speed.

Abstract: A host-slave control system and an addressing method thereof are provided. The host-slave control system includes a plurality of slave devices, a host device, and a remote control device. The host device is coupled to and controls the slave devices through a host-slave transmission interface. When one of the slave devices receives an addressing signal sent by the remote control device, the one of the slave devices sends an addressing information to the host device, such that the host device assigns a specific address as the address of the one of the slave devices according to the addressing information. In particular, the addressing information includes a default identification code of the one of the slave devices, and the address assigned to the one of the slave devices corresponds to the default identification code of the one of the slave devices.

Abstract: A power supply apparatus includes a case, a circuit board, at least one heating element, and at least one internal liquid cooling heat-dissipation structure. The heating element is disposed in the case and electrically connected to the circuit board. The internal liquid cooling heat-dissipation structure is disposed in the case and located in at least one of manners which include being located between the case and the circuit board and being located between the case and the heating element. The internal liquid cooling heat-dissipation structure includes a tank and a heat conducting sheet. The tank includes an internal pipe. A working fluid is adapted to be filled in the internal pipe. The heat conducting sheet is assembled to the tank. The heat generated by the heat element is transmitted to the tank through the heat conducting sheet and dissipated by the working fluid circulating in the internal pipe.

Abstract: A power supply apparatus including a master power converter and a slave power converter is provided. The master power converter generates a main power having a working voltage level. The slave power converter generates an auxiliary power. According to its operation state, the master power converter provides a corresponding control signal to the slave power converter. If the master power converter determines the operation state is a first operation state, the slave power converter generates the auxiliary power having a voltage level lower than the working voltage level, so that the slave power converter can be operated in a no-load conversion state. If the master power converter determines the operation state is a second operation state, the slave power converter raises the voltage level of the auxiliary power to the working voltage level, so that the auxiliary power replacing the main power is supplied to a load.

Abstract: An USB hub including a power input port, a main power converting circuit, a first and a second type-C USB ports, and a first and a second power converting circuits is provided. The power input port receives an input power. The main power converting circuit converts the input power into a main power. The first and the second power converting circuits receive the main power respectively, and are coupled to the first and the second type-C USB ports respectively. The first and the second power converting circuits respectively obtain a first and a second operation power information of a first and a second external electronic devices, and respectively generate and provide a first and a second operating powers required by the first and the second external electronic devices for normal operation according to the first and the second operation power information.

Abstract: An inverter apparatus is provided. The inverter apparatus includes a direct current to direct current (DC/DC) converter, a direct current to alternating current (DC/AC) converter and a control circuit. The DC/DC converter is arranged for converting an input power to a DC power according to a control signal. The DC/AC converter is coupled to the DC/DC converter, and is arranged for receiving the DC power, and generating an AC power according to the DC power. The control circuit is coupled to the DC/DC converter, and is arranged for generating the control signal according to a reference power and the input power so as to control an operation of the DC/DC converter, detecting the control signal to generate a detection result, and controlling the reference power according to the detection result so as to adjust a duty cycle of the control signal.

Abstract: A power detection and transmission circuit is provided. The power detection and transmission circuit includes a first conversion circuit, a second conversion circuit and a signal coupling circuit. The first conversion circuit is electrically connected to a power supply module to receive an analog input signal, and is arranged for converting the analog input signal to a first pulse width modulation (PWM) signal. The second conversion circuit is arranged for converting a second PWM signal to an analog regenerated signal, and transmitting the analog regenerated signal to a microcontroller, wherein the microcontroller calculates power information of the power supply module according to the analog regenerated signal. The signal coupling circuit is coupled between the first conversion circuit and the second conversion circuit, and is arranged for coupling the first PWM signal to the second conversion circuit and accordingly generating the second PWM signal.

Abstract: An apparatus and a method for power supply are provided. The apparatus for power supply includes a main power circuit, an auxiliary power circuit and a power switching control circuit. The main power circuit is configured to generate a main power suitable to be provided to a first load and a second load for use. The auxiliary power circuit is configured to generate an auxiliary power suitable to be provided to the second load for use. The power switching control circuit is configured to detect a voltage difference between the main power and the auxiliary power and determine whether the apparatus meets a normal power supply condition, so as to select one of the main power and auxiliary power as a power source of the second load.

Abstract: The invention provides a control circuit of a switch device. A single output pin of the control unit outputs an enable signal to control terminals of two switch units to control an on-state of the two switch units, and adjust a current size of a control current of the on-state of the switch device. One of the switch units after receiving the enable signal for a predetermined time is switched to an off-state, so as to reduce power consumption of the switch device.

Abstract: A management circuit for a power supply is provided. The power supply includes a power factor correction circuit and a power conversion circuit. An output of the power factor correction circuit is coupled to an input of the power conversion circuit. The management circuit includes a power factor correction controller, a pulse width modulation controller and a control circuit. The power factor correction controller controls power factor correction of the power factor correction circuit. The pulse width modulation controller controls power conversion of the power conversion circuit. The control circuit selectively activates the pulse width modulation controller according to a first activated signal generated by an input power of the power supply. After the pulse width modulation controller is activated, the control circuit generates a second activated signal based on the first activated signal. The control circuit activates the power factor conversion controller according to the second activated signal.