JP3472085B2 - Expansion board device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion board device connected to a predetermined expansion slot to expand a predetermined data processing function.

[0002]

2. Description of the Related Art Conventionally, an expansion slot (option slot) of an information processing apparatus, such as a personal computer, is generally a TT.
In many cases, the power supply voltage that is interfaced at the L level and is supplied from the information processing device to the expansion board device (option board) via the option slot is 5V.

However, the number of devices operating at 3.3V has increased in recent years, and an option board can be realized at 3.3V, and the inside of the main body of the device is 3.3 to reduce power consumption.
It has become necessary to operate at V, and the supply to the option slot is shifting from 5V to 3.3V.

At this time, if the option boards are of the same series, the mechanical structure of the option board may be changed in a model in which the supply voltage is changed to 3.3V.
The 5V option board should not be inserted into a 3.3V supply device, and the 3.3V option board should be 5
It is designed so that it cannot be inserted into a V supply device.

[0005]

As described above, in the above-mentioned conventional example, the option boards which realize the same function in response to the change of the power supply voltage are compatible with 5V and 3.3V. I had to prepare two.

The present invention has been made to solve the above problems, and an object of the present invention is to make a connector movable so as to be connected at different positions according to a power supply voltage supplied from an expansion slot, By detecting the center position of the connector and switching the circuit for supplying power,
It is an object to provide an expansion board device which has a simple configuration and which can be commonly connected to option slots having the same connector and different power supplies.

[0007]

A first invention according to the present invention is an expansion device which is connected to a predetermined expansion slot to expand a predetermined data processing function and which has a plurality of circuits for supplying different power supplies. In the board device, a freely slidable connection means connected to the expansion slot at different positions for each power supply voltage supplied from the expansion slot,
It has a detection means for detecting the position of the center connected in response to the connection means being slid, and a switching means for switching the circuit for supplying power based on the connection position detected by the detection means. It is characterized by A second aspect of the present invention is characterized by being inserted into an option slot of an information processing device. A third aspect of the present invention is characterized by executing any one of communication processing, audio processing, video processing, and display control processing.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram for explaining the main configuration of an expansion device showing an embodiment of the present invention.

In the figure, reference numeral 1 is an option board, which is provided with a connector C which is inserted and connected to an option slot of an information processing apparatus or the like, and is connected to the option slot to perform communication processing, audio processing, video processing, and display control processing Execute various optional function processing such as. Reference numeral 2 denotes a first connection position, which functions as a connector C corresponding to 5V, and is fitted to the device at the first connection position 2 when the option board 1 is inserted into the device. It should be noted that the shape of the connector C is a bus type (for example, PCI, IS) of an expansion bus in the information processing device.
It depends on A). Reference numeral 3 denotes a center position, which corresponds to the center position of the first connection position 2 of the 5V connector C.

Reference numeral 4 denotes a second connection position, which functions as a 3.3V-compatible connector C and is fitted to the device when the option board 1 is inserted into the device.

The shape of the connector C differs depending on the bus type (eg PCI, ISA) of the expansion bus in the information processing apparatus. Reference numeral 5 denotes a center position, which corresponds to the center position of the 3.3V connector C.

The connector C, which is fitted into the device when it is inserted into the device on the option board 1, is physically movable to the positions of the center lines 3 and 5 (slide freely in the direction of the arrow in FIG. 1). Possible). The arrangement of signals on the same connector is the same for 3.3V and 5V, and only the supplied power supply voltage changes. Therefore, even if the connector position is changed, the signal can be optionally changed by the flexible board. The circuit of the board 1 is kept connected.

FIG. 2 shows the option board 1 shown in FIG.
It is a figure explaining the principal part structure of.

In the figure, reference numeral 6 is a flexible substrate, which is optional regardless of whether the connector C fitted to the device on the option board 1 moves to the center position 3 or the center position 5 when it is inserted into the device. It has a function to keep the connection with the board 1.

FIG. 3 shows the option board 1 shown in FIG.
2 is a block diagram for explaining the power supply level identification unit of FIG. 4 and corresponds to an example for performing power supply control on the option board 1 based on the information obtained by moving the connector C.

In the figure, reference numeral 7 denotes a connector position detecting portion, which is used as a physical switch or a photocoupler to determine whether the position of the connector C is at the central position 3 or the central position 5 of the second connecting position 4. To detect. 8 is DC-D
In the C converter, when the connector position is at the central position 3 based on the information from the detection unit 7, it functions as 5V input, and when the connector position is at the central position 5, 3.3V.
Serves as input.

Reference numerals 9A and 9B are main circuits, and the case where the output is only 5V and 3.3V is shown. However, the intermediate position may be decided and both 5V and 3.3V may be supplied. .

The characteristic configuration of this embodiment will be described below with reference to FIG.

An expansion board device provided with a plurality of circuits (main circuits 9A, 9B) connected to a predetermined expansion slot configured as described above to expand a predetermined data processing function, and is supplied from the expansion slot. The connecting means (connector C) is connected to the expansion slot at different positions depending on the power supply voltage, the detecting means (detecting section 7) for detecting the connecting position of the connecting means, and the connecting position detected by the detecting means. Since it has a switching means (DC-DC converter 8) for switching the circuit for supplying power based on the above, it is possible to share the option connectors having different power supplies with the same connector with a simple structure.

As described above, according to the present invention, the connector is movable so that it is connected at different positions according to the power supply voltage supplied from the expansion slot, and the center position of the connector is detected to turn on the power supply. Since the circuits for supplying the power are switched, the effect that the common power supply can be commonly connected to option slots having different power supplies with the same connector with a simple configuration is provided.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a main configuration of an expansion device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of main parts of an option board shown in FIG.

FIG. 3 is a block diagram illustrating a power supply level identification unit of the option board shown in FIG.

[Explanation of symbols]

1 Option board 2 First connection position 3 Center position 4 Second connection position 5 Center position 7 Detector C connector

Claims (3)

(57) [Claims] 1. To supply different power supplies, which are connected to predetermined expansion slots to expand predetermined data processing functions.
A expansion board device comprising a circuitry, said at different positions for each power supply voltage supplied from an expansion slot, and slidable connecting means freely connected to said expansion slot, said connecting means is slid An expansion board having a detecting means for detecting a center position connected in accordance with the above, and a switching means for switching a circuit for supplying power based on the connection position detected by the detecting means. apparatus. 2. The expansion board device according to claim 1, wherein the expansion board device is inserted into an option slot of the information processing device. 3. A communication process, a voice process, a video process, and a display control process are executed.
Alternatively, the expansion board device described in 2.