Abstract: A method of determining a hard disk operation status is for determining an operation status of an electronic device which comprises a SGPIO port and a hard disk. The method comprises receiving an operation status raw signal of the hard disk through the SGPIO port, determining whether receiving a previous operation status raw signal of the hard disk has been performed before an operational period before receiving the operation status raw signal, generating an operation status adjusted signal according to the operation status raw signal of the hard disk and an enabled status signal of the SGPIO port when determining that receiving the previous operation status raw signal has not been performed before an operational period before receiving the operation status raw signal, and performing a delay procedure on the operation status adjusted signal according to a preset time interval to generate and output an operation status determined signal.

Abstract: The present disclosure provides a temperature-sensing device and a server, with the server including a chassis and a mainboard. A temperature-sensitive element is disposed at an inlet of the chassis, and the temperature-sensitive element is used for converting a temperature sensed in the inlet of the chassis to a temperature sensing data. The mainboard is disposed in the chassis and includes a temperature sensor and a host. An external temperature-sensing channel of the temperature sensor is communicatively connected to the temperature-sensitive element for transferring the temperature sensing data to the host. The function of sensing the temperature in the inlet of the chassis of the server can be implemented by the temperature sensing device and the server disclosed in the present disclosure, which reducing the product manufacturing costs. There is no need to test I2C signals on a temperature-sensor board, which reducing labor costs.

Abstract: A method for updating a firmware of a complex programmable logic device comprises: electrically connecting a general purpose input/output pin of a baseboard management controller with a hitless enable pin of a complex programmable logic device; electrically connecting a first integrated circuit bus of the baseboard management controller with a second integrated circuit bus of the complex programmable logic device; inputting and transmitting a update command to the baseboard management controller by a local operating system; enabling the hitless enable pin by the baseboard management controller according to the update command; cleaning a first firmware in the complex programmable logic device by the baseboard management controller according to the update command; and burning a second firmware into the complex programmable logic device by the baseboard management controller according to the update command.

Abstract: A method for updating a firmware of a complex programmable logic device comprises: electrically connecting a general purpose input/output pin of a baseboard management controller with a hitless enable pin of a complex programmable logic device; electrically connecting a first integrated circuit bus of the baseboard management controller with a second integrated circuit bus of the complex programmable logic device; inputting and transmitting a update command to the baseboard management controller by a local operating system; enabling the hitless enable pin by the baseboard management controller according to the update command; cleaning a first firmware in the complex programmable logic device by the baseboard management controller according to the update command; and burning a second firmware into the complex programmable logic device by the baseboard management controller according to the update command.

Abstract: A temperature monitoring system includes a temperature sensing device, a management controlling device and a logic device. The temperature sensing device monitors temperature of a central processing unit of a computer system, and sets a first temperature threshold and a second temperature threshold. The management controlling device determines whether the temperature is higher than the first temperature threshold, and further determines whether the temperature is higher than the second temperature threshold when the temperature is higher than the first temperature threshold. The logic device controls the computer system to turn on or shut down. When the temperature is higher than the second temperature threshold, the management controlling device controls the logic device to execute a forced shutdown of the computer system, locks a power button of the computer system and stores an event log.

Abstract: A temperature monitoring system includes a temperature sensing device, a management controlling device and a logic device. The temperature sensing device monitors temperature of a central processing unit of a computer system, and sets a first temperature threshold and a second temperature threshold. The management controlling device determines whether the temperature is higher than the first temperature threshold, and further determines whether the temperature is higher than the second temperature threshold when the temperature is higher than the first temperature threshold. The logic device controls the computer system to turn on or shut down. When the temperature is higher than the second temperature threshold, the management controlling device controls the logic device to execute a forced shutdown of the computer system, locks a power button of the computer system and stores an event log.

Abstract: A reset system comprises an enable circuit, a buck converter and a reset circuit. The enable circuit is connected to a system power source. When a voltage of the system power source is greater than a first voltage, the enable circuit outputs an enable signal with a steep leading edge. The buck converter converts the system power source to a micro-controller power source according to the enable signal. The reset circuit is connected to the system power source and the micro-controller power source. When a voltage of the system power source is less than a second voltage, the reset circuit outputs a reset signal to reset the micro-controller. The first voltage is smaller than the second voltage.

Abstract: A server for automatically switching sharing-network is disclosed in the present invention. In the server, a plurality of general-network controllers are provided to send a first network-control signal and a network-status signal. A switch module selects one of the first network-control signals as a second network-control signal according to a network-interface-selection signal. The second network-control signal is transmitted to a baseboard management controller (BMC) by the switch module. When a client operates a remote control through the general-network controllers which have sharing-network function, the BMC is received the network-status signals to send the network-interface-selection signal according to a priority list.

Abstract: A reset system comprises an enable circuit, a buck converter and a reset circuit. The enable circuit is connected to a system power source. When a voltage of the system power source is greater than a first voltage, the enable circuit outputs an enable signal with a steep leading edge. The buck converter converts the system power source to a micro-controller power source according to the enable signal. The reset circuit is connected to the system power source and the micro-controller power source. When a voltage of the system power source is less than a second voltage, the reset circuit outputs a reset signal to reset the micro-controller. The first voltage is smaller than the second voltage.

Abstract: A protection circuit for a wind turbine generator that includes a PWM Brake that works in conjunction with known Brake Relays is disclosed. The Brake Relay is used to short the generator output terminals at a first threshold voltage. The PWM Brake includes one or more switching devices, coupled across the generator output. The PWM Brake is under the control of a PWM Brake Control Circuit which actuates the PWM Brake at a second threshold voltage that is relatively lower than the first threshold voltage. In accordance with an important aspect of the invention, the PWM Brake Control Circuit includes a novel speed sensing circuit for providing a signal representative of the speed of the turbine generator The novel speed sensing circuit eliminates the need to mount a speed sensor on the pole top mounted turbine generator. As such, the need for adding cabling from the pole top mounted wind turbine generator is eliminated.