Abstract: There are provided a device for preventing an entire cabinet from being powered down, a cabinet, and a method for preventing an entire cabinet from being powered down. The device includes a diode and a first protection circuit. An anode of the diode is grounded, a cathode of the diode is connected to an external voltage supplying copper busbar via the first protection circuit, and the diode is connected in parallel with an external node. The first protection circuit is arranged to monitor a current flowing through the diode, and cut off a connection line between the diode and the voltage supplying copper busbar in a case that the current exceeds a preset fusing current threshold.

Abstract: A converter includes a control chip, a switching transistor, a step-down circuit and a linear power circuit. The control chip is configured to: convert an input voltage from an external power supply module into a control voltage; when a bootstrap voltage is received, convert the bootstrap voltage into the control voltage and stop converting the input voltage; and control the switching transistor to be periodically turned on and off based on the control voltage to cause the power supply module to periodically output the input voltage to the step-down circuit. The step-down circuit is configured to generate an operating voltage based on the input voltage and outputs the operating voltage to an electrical unit and the linear power circuit. The linear power circuit is configured to convert the operating voltage into the bootstrap voltage and output the bootstrap voltage to the control chip.

Abstract: A converter includes a control chip, a switching transistor, a step-down circuit and a linear power circuit. The control chip is configured to: convert an input voltage from an external power supply module into a control voltage; when a bootstrap voltage is received, convert the bootstrap voltage into the control voltage and stop converting the input voltage; and control the switching transistor to be periodically turned on and off based on the control voltage to cause the power supply module to periodically output the input voltage to the step-down circuit. The step-down circuit is configured to generate an operating voltage based on the input voltage and outputs the operating voltage to an electrical unit and the linear power circuit. The linear power circuit is configured to convert the operating voltage into the bootstrap voltage and output the bootstrap voltage to the control chip.

Abstract: There are provided a device for preventing an entire cabinet from being powered down, a cabinet, and a method for preventing an entire cabinet from being powered down. The device includes a diode and a first protection circuit. An anode of the diode is grounded, a cathode of the diode is connected to an external voltage supplying copper busbar via the first protection circuit, and the diode is connected in parallel with an external node. The first protection circuit is arranged to monitor a current flowing through the diode, and cut off a connection line between the diode and the voltage supplying copper busbar in a case that the current exceeds a preset fusing current threshold.

Abstract: Provided is a hard disk peak shift starting system, including: a power supply unit, a mainboard and a hard disk backplane. The power supply unit provides power to hard disks via a first power connector, a second power connector, E-Fuse chips and hard disk connectors. A Complex Programmable Logic Device (CPLD) unit sets a power-up starting sequence of the hard disks and a power-up starting time interval between the hard disks, and the CPLD unit is connected to a logical control end of each of the E-Fuse chips to control, based on the set power-up starting sequence and the set power-up starting time interval, on-off of a power supply end of each of the E-Fuse chips, to realize control of peak shift powering up and starting of the hard disks.

Abstract: Provided is a hard disk peak shift starting system, including: a power supply unit, a mainboard and a hard disk backplane. The power supply unit provides power to hard disks via a first power connector, a second power connector, E-Fuse chips and hard disk connectors. A Complex Programmable Logic Device (CPLD) unit sets a power-up starting sequence of the hard disks and a power-up starting time interval between the hard disks, and the CPLD unit is connected to a logical control end of each of the E-Fuse chips to control, based on the set power-up starting sequence and the set power-up starting time interval, on-off of a power supply end of each of the E-Fuse chips, to realize control of peak shift powering up and starting of the hard disks.