JP2000010667A - Power source controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the power sources of both a main body device and a peripheral device by one power source controller by using an EPO terminal provided at the main body device. SOLUTION: This power source controller is provided with not only an EPO controller function but also a power supply terminal 7 for supplying a power to a peripheral equipment. The power supply terminal 7 starts the supply of a power in a prescribed timing after the output of a signal for turning on the power source of a server computer 1, and stops the supply of a power before the output of an OFF signal for turning off the power source of the server computer 1, and first turns off the power source of the peripheral equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply control device for controlling a power supply of a main unit such as a computer and peripheral devices thereof. Power on peripheral devices,
The present invention relates to a power supply control device that performs off control.

[0002]

2. Description of the Related Art Conventionally, a computer such as a server computer used as a main unit is provided with a terminal called an emergency power cutoff terminal (EPO terminal), which is used to normally terminate the main unit and turn off the power in an emergency. Terminals are provided. By connecting a known control device called an EPO controller to this EPO terminal, the power of the main unit can be automatically turned off in an emergency or turned off by remote control using a communication line via a modem. It is also possible to do.

FIG. 4 is a block diagram in which an EPO controller is connected to a server computer, 1 is a server computer, and 10 is an EPO controller. The server computer 1 is operated by a switch operation on the server computer side.
The server computer turns on the power by outputting the PO control signal to the EPO controller, receiving the signal, and outputting the complete signal to the server computer. The server computer is powered off by stopping the output of the complete signal in an emergency or the like. The EPO controller controls the power supply of the server computer 1 in this manner.

[0004]

However, only the main unit such as a server computer having an EPO terminal can control the power supply by such an operation, and the power supply of the peripheral device connected to the main unit can be controlled. Cannot be controlled in the same way, and the power of these peripheral devices has been turned on and off manually. Therefore, when the main body is turned on, the peripheral device must be turned on together, and when the main body is turned off, the peripheral device must still be turned off. However, if a power supply control device or remote control device is separately connected to peripheral devices, it is possible to perform power control or remote control collectively, but the power supply control device must be provided in each device, and the system However, it was expensive and space had to be secured.

Therefore, the present invention makes it possible to control the power supply of the peripheral device together with the main unit using the EPO terminal, and without providing a separate power supply control device or the like to the peripheral device.
An object is to control the entire system by one power supply control device.

[0006]

In order to solve the above-mentioned problems, the present invention is directed to a power supply for a main unit having an emergency power supply shutoff terminal and a power supply for a plurality of peripheral devices connected to the main unit. A power supply control device that performs on / off control in conjunction with a main body connection portion that connects to the emergency power supply cutoff terminal, and a power supply terminal that supplies power to the peripheral device. In response to a power-on operation, power is supplied to the peripheral device from the power supply terminal in conjunction with the power-on of the main device, and the peripheral device is turned on.

According to a second aspect of the present invention, in the first aspect of the invention, when the power supply of the main unit is turned off by outputting the power supply off signal from the main body connection portion, the power supply terminal is linked with the output of the off signal. And the peripheral device is turned off.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram of a power control device according to the present invention, and FIG. 2 is a block diagram showing an entire system in which the power control device is connected to a server computer as a main device.

As shown in the figure, the power supply control device 2
Like the PO controller 10, it has a main body connection part 4 connected to the EPO terminal 3 of the server computer 1, and has a built-in control circuit 5 having a CPU.
And a plurality of power supply terminals 7 that perform power-on / off operations in conjunction with power control of the main unit.
The power supply of the peripheral device 8 is connected to the power supply terminal 7. The main body connection part 4 is connected to the E
In addition to the PO signal terminal 4a, the power hold signal terminal 4b,
It comprises a power pick signal terminal 4c, a complete signal terminal 4d, and the like, and these signal terminals exchange signals according to the flowchart of FIG. Reference numeral 6 denotes a power supply circuit, 9 denotes a relay, and 11 denotes a power outlet.

The operation of the power supply control device 2 will be described with reference to the power supply operation flowchart of FIG. First, the power-on operation is the same as the operation on the EPO controller 10 described above.
The PO switch is turned on, and an EPO signal, which is a power-on signal of the server computer 1, is sent to the power control device 2. Subsequently, the power is manually turned on in the order of the power hold switch (S2) and the power pick switch (S3), and each signal is sent to the power control device.

With this operation, the power control device 2 recognizes the power-on operation of the server computer 1 (S4), and outputs a complete signal as a confirmation signal to the server computer (S5). Upon receiving this signal, the server computer turns on the power (S6) and starts up. And
After a predetermined time has passed from the output of the complete signal, the relay 9 operates to supply power from the power supply terminal 7, and the power of the connected peripheral device 8 is turned on (S7). still,
The setting of the predetermined time may be stored in advance, or may be adjusted by providing a setting switch so as to be optimal according to the system used.

The operation at the time of turning on the power is described above. The power of the peripheral device 8 is automatically turned on just by turning on the power of the server computer. Even if you do not do so, it will automatically start up, so you do not mistake the order of loading.

Subsequently, the power-off operation is performed by the power control device 2
Is in the power-off operation (S8), first, the operation of stopping the power of the peripheral device 8 (S9), that is, the supply of power from the power supply terminal 7 is stopped, and then the output of the complete signal to the server computer 1 is stopped. (S10). By this operation, the power of the peripheral device 8 is turned off, ie, turned off, and then the server computer 1 turns off the power (S11). The time from when the output of the power supply terminal 7 is stopped to when the output of the complete signal is stopped may be stored in advance in the same manner as when the power is turned on, or may be set as necessary.

As described above, since the power supply control device 2 performs the power-off operation of the peripheral device 8 before stopping the output of the complete signal, the power-off operation of the peripheral device is performed each time the power-off operation of the server computer is performed. It is not necessary to perform the operation, and the trouble of the off operation can be reduced, and the whole system can be safely turned off. When the power supply is turned off by remote control, the power supply of the entire system can be turned off only by interposing a single modem in the power supply control device 2.
There is no need to intervene a power supply device or a remote control device in each peripheral device, and it is possible to implement with a minimum of additional equipment.

In the above embodiment, the power of the peripheral device is turned on after the power of the main device is turned on, and the peripheral device is turned off before the power of the main device is turned off. The order is not limited, and may be changed according to the situation of the entire system.

[0016]

As described above in detail, according to the first aspect of the present invention, the power of the peripheral device is turned on in conjunction with the power-on operation of the main device, so that the power of the peripheral device is manually turned on. There is no need to put them in, and there is no mistake in the order of loading.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the power supply of the peripheral device is turned off in conjunction with the power-off operation of the main unit by the power supply control device. And the cutting procedure is not mistaken. In the case where the power supply is remotely controlled using a communication line, the power-off operation of the entire system can be performed only through one modem, and the operation can be performed with a minimum number of additional devices.

[Brief description of the drawings]

FIG. 1 is a block diagram of a power supply control device showing an example of an embodiment of the present invention.

FIG. 2 is a block diagram of an entire system using the power supply control device of FIG. 1;

FIG. 3 is a flowchart showing an operation flow of the power supply control device of FIG. 1;

FIG. 4 is a block diagram of a conventional EPO controller.

[Explanation of symbols]

1. Server computer 2. Power control device 3.
・ EPO terminal (emergency power supply cutoff terminal), 4 ・ ・ body connection, 5 ・ control circuit, 7 ・ power supply terminal, 8 ・ peripheral device.

Claims (2)

[Claims] 1. A power supply control device for controlling on / off of a power supply of a main unit having an emergency power supply cutoff terminal and a plurality of peripheral devices connected to the main unit in an interlocked manner, wherein A main body connection part connected to the power cutoff terminal,
A power supply terminal for supplying power to the peripheral device,
A power supply control device that receives a power-on operation on the main device side, supplies power to the peripheral device from the power supply terminal and turns on the peripheral device in conjunction with the power-on of the main device. 2. When a power supply off signal is output from a main body connection portion to turn off the power of the main body device, the supply of power from a power supply terminal is stopped in conjunction with the output of the off signal to turn off the peripheral device. The power supply control device according to claim 1.