JPH09230964A - Computer with dc current output mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a computer which eliminates the need for an AC adapter and unnecessitated with the space where the AC adapter is by providing one or plural DC voltage supply elements to supply DC voltage to a peripheral device. SOLUTION: A computer main body 1 is connected to a socket by a plug 4. The AC power source supplied from the plug 4 is converted into the DC A and DC B of preliminarily set voltage by an AC/DC conversion part 11. The DC A and the DC B are used as a supply power source for each peripheral device 2 through a DC power source output terminal 3. Thus, a computer main body 1 is provided with the DC power source output terminal 3 supplying a DC power source, the power of each peripheral device 2 is supplied from this terminal 3 and a socket is connected to only the computer main body 1. Therefore, an AC adapter becomes unnecessary and the space for placing the AC adapter becomes unnecessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for supplying power from a computer device to peripheral devices.

[0002]

2. Description of the Related Art Among peripheral devices for computers, particularly small ones use an external AC adapter without a built-in power supply circuit, and the AC adapter supplies the DC power required by the peripheral device from the AC power supply. Often. When connecting such a peripheral device to a computer, as shown in FIG. 5, an AC for the computer 1 and the peripheral device 2 of the main body
As many AC outlets 4 as the number of adapters 5 are used. Note that, in FIG. 5, cables and the like for transmitting signals between the computer 1 and the peripheral device 2 are omitted.

[0003]

The first problem is the lack of outlets. In the conventional configuration, an outlet is required for each computer and peripheral device,
Ordinary offices rarely have many such outlets.

The second problem is that a space for placing the AC adapter is required. Even if so-called "octopus wiring" or a sufficient number of AC outlets can be secured by providing a predetermined number of AC outlets in the computer body, space for placing the AC adapter is required around the computer, and space saving cannot be achieved. There is also a problem.

It is an object of the present invention to provide a computer that does not require an AC adapter and does not require a space for placing the AC adapter.

[0006]

The computer system of the present invention has a plurality of DC power supply output terminals for supplying power to peripheral devices.

A DC power supply output terminal for supplying a DC power supply to the computer main body is provided, and the power supply of each peripheral device is supplied from this terminal, and only the computer main body is connected to the outlet. Therefore, the AC adapter is unnecessary and the space for storing the AC adapter is also unnecessary.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a general usage pattern of the present invention, and FIG. 2 shows a first embodiment of the present invention. 1 and 2, the computer 1 is connected to an outlet by a plug 4. The AC power supplied from the plug 4 is converted by the AC / DC converter 11 into DC A and DC B having preset voltages. The direct current A and the direct current B supply power to each peripheral device through the direct current power supply output terminal 3.

FIG. 3 shows a second embodiment of the present invention. In FIG. 3, the computer 1 is connected to an outlet by a plug 4. The AC power supplied from the plug 4 is converted into DC A and DC B by the AC / DC converter 11. The voltage levels of the direct currents A and B are determined by the voltage indicator 1
According to the designation of No. 2, the voltage conversion unit 13 changes the AC / DC conversion unit 11
Are controlled to determine the output voltages of DC A and DC B. The direct current A and the direct current B supply power to each peripheral device through the direct current power supply output terminal 3. According to this second embodiment, it is possible to use the peripheral device as another peripheral device operating at a different DC voltage. The voltage instruction unit 12 is composed of a volume, a switch, and the like.

FIG. 4 shows a third embodiment of the present invention. In FIG. 4, the computer 1 is connected to an outlet by a plug 4. The AC power supplied from the plug 4 is converted into DC A and DC B by the AC / DC converter 11. Each peripheral device indicates to the computer 1 the voltage required by itself. This instruction is transmitted from the peripheral device to the computer via a signal cable, for example. The voltage conversion unit 13 controls the AC / DC conversion unit 11 according to the designation from the peripheral device, and determines the output voltage of the DC A and the DC B. The direct current A and the direct current B supply power to each peripheral device through the direct current power supply output terminal 3.

In the third embodiment, since the required voltage of the peripheral device is instructed from the peripheral device side, it is not necessary to manually set the DC voltage every time the peripheral device is reconnected. Further, it is possible to prevent the peripheral device from being damaged due to the DC voltage different from the required voltage of the peripheral device being erroneously supplied.

[0013]

The first effect is that the number of outlets used is minimized.

The reason is that the power supply for the peripheral device which requires the DC power supply is supplied from the computer main body, so that the AC adapter for the peripheral device is unnecessary.

As a second effect, since the AC adapter itself is unnecessary, the space for placing the AC adapter is also unnecessary.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of the present invention.

FIG. 2 is a diagram showing a first embodiment of the present invention.

FIG. 3 is a diagram showing a second embodiment of the present invention.

FIG. 4 is a diagram showing a third embodiment of the present invention.

FIG. 5 is a diagram showing a conventional configuration.

[Explanation of Codes] 1 Computer 2 Peripheral device 3 DC power output terminal 4 Plug 5 AC adapter

Claims (3)

[Claims] 1. A computer provided with one or a plurality of DC voltage supply terminals for supplying a DC voltage to peripheral devices and the like. 2. The computer according to claim 1, further comprising means for varying the voltage of each output terminal. 3. The method according to claim 2, further comprising means for receiving a signal indicating a requirement from a peripheral device connected to each output terminal and setting a voltage at each output terminal to a value corresponding to the signal. The listed computer.