KR20140127714A - Interface for electronic component - Google Patents

Abstract

Disclosed is an electric component interface device. The electric component interface device includes: a data communications pin for data transmission; a ground connection pin which is arranged to be parallel to the data communications pin and is connected to the ground; and a supply voltage connection pin which is arranged to be parallel to the ground connection pin to supply a voltage to an electronic circuit. The electric component interface device enables the electronic circuit to include the supply voltage connection pin supplying the voltage.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to an electronic part interface device.

In general, one byte for transmitting data is 8 bits and the data is transmitted in 8 bits. Therefore, the connector for data communication is connected to the board which is extended by 8 improvement, and the ground is used together. In this case, data and power are separately transmitted, so that a separate power supply is required for the other expansion board.

For example, in the prior art Korean Patent Publication No. 2011-0046343 (published on May 04, 2011), data transmission and power connection are implemented by separate means.

However, when data and power are separately transmitted from the connector, the circuit is complicated and the cost for implementing each circuit is also increased.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

The present invention provides a connector for data transfer comprising a supply voltage connection pin for supplying a voltage to an electric circuit.

The technical problems other than the present invention can be easily understood from the following description.

According to an aspect of the present invention, there is provided an electronic part interface device for coupling data and power between a main board and an expansion module to a main board and an expansion module, the device comprising: a data communication pin for transferring data; A ground connection pin separated from the data communication pin and connected to a ground of the main board; And a supply voltage connection pin which is separated from the ground connection pin and is connected to a power supply of the main board to supply an operation voltage to the expansion module.

The data communication pin may include eight pins for transmitting data by 8 bits.

Or the data communication pin comprises two pins forming a receiving end and a transmitting end.

The electronic part interface device may be a connector using any one of 8-bit port or GPIO input / output pin, UART, USART and RS-232C.

And a ferrite ring surrounding the connection line.

Or a ferrite ring may be coupled to the inner or outer surface of the case of the electronic part interface device including the data communication pin, the ground connection pin, and the supply voltage connection pin.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

The electronic component interfacing apparatus according to the present invention has an effect of including a supply voltage connection pin for supplying a voltage to an electric circuit.

1 is a configuration diagram of an electronic part interface device according to a first embodiment of the present invention;
2 is a configuration diagram of an electronic part interface device according to a second embodiment of the present invention;
3 is a configuration diagram of an electronic part interface device according to a third embodiment of the present invention;
4 is a configuration diagram of an electronic part interface device according to a fourth embodiment of the present invention;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The term " part, "" module," " means, "or the like, which is described in the specification, refers to a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software .

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a configuration diagram of an electronic part interface apparatus according to a first embodiment of the present invention.

The present embodiment may include a supply voltage connection pin through which a connector for data transmission supplies a voltage to an electrical circuit.

Referring to FIG. 1, the port and the interface can be extended by 8 bits, and power and GND can be output together to improve convenience. The connector according to the present embodiment can be used when data and power are transmitted by connecting the expansion module and the main board via a connection line. By establishing and producing the connector standard, compatibility and convenience of the entire board can be improved.

Here, the main board means a core board made of a microprocessor such as AVR, 8051, PIC, MSP430, FPGA, or a programmable microcontroller.

The expansion module is a peripheral circuit that is connected to the main board and can give various additional functions to the main board. For example, a sensor module, a motor driving module, a communication module, an I / O module, an LCD module, Can be.

The extension module will be described in more detail as follows.

For example, if the motor is directly attached to the main board, it can not supply sufficient current to turn the motor. Also, the microcontroller of the main board may be damaged due to the counter electromotive force generated by the rotation of the motor. Therefore, the motor must be connected to the main board through the motor drive module. These modules expand the function of the main board, and thus become an extension module.

Here, one byte for transferring data is 8 bits. Therefore, 8-bit data is transmitted in general. Therefore, it is connected to the board which is extended by 8 improvement, and the ground (or ground) is used together. In this case, as in the present embodiment, it is very convenient to transmit the ground and the VCC with a 10-pin cable together with 8 bits of data. At this time, it is easy to understand that a 10-pin cable can be connected to any 10-pin connector including a 10-pin box connector, and the same effect can be obtained even if the pin arrangement is changed.

The input / output data and the control data of the microcontroller are divided into 8 bits and can be controlled because they are formed based on bytes which can be divided into 8 bits, for example, 8 bits, 16 bits, 32 bits and so on. In this case, 8 bits of data can be exchanged between the microcontrollers having data bits that can be processed at different times, and mutual data can be exchanged between the microcontrollers. Also, when learning another microcontroller, It can be used as it is, so it is very convenient and its utilization becomes high.

In this case, as described in this embodiment, data and power are transmitted together, so that no separate power source is required to be inserted into the counterpart expansion board, that is, the expansion module. In addition, the power supply circuit can be omitted in the board (expansion module) extended by this, so that the circuit can be simplified and the cost can be reduced.

Also, in the case of UART, USART or RS-232C connector, there is a standard consisting of three pins such as a receiving end (rx), a transmitting end (tx) and a ground for data communication. According to this embodiment, Can be added and transmitted. Even in this case, the above-described effect can be obtained.

Here, the number of pins of the connector according to the present embodiment may be variously implemented. For example, as described above, the number of pins of the connector may be 10 pins, 4 pins, or the like.

Here, although the voltage is expressed by VCC, the present invention is not limited to this voltage, and may be various voltages such as Vee, Vdd, Vss, and Vref.

2 to 4 are block diagrams of an electronic part interface apparatus according to second to fourth embodiments of the present invention.

Referring to FIG. 2, there is shown a 3-pin UART (RS-232C Level) connector, an RS-232C Level serial connector through the MAX232C. This is, for example, a Molex 5267-3 compatible connector, which is convenient for 12 V level serial communication.

Referring to FIG. 3, a 3-pin UART (RS-232C Level) connector is a connector for serial communication of TTL level (5V level) or CMOS level (1.8-3.3V level), for example, Molex 5045- 4 compatible connector.

Referring to FIG. 4, there is shown a 2-pin power connector, in which the number 2 is a + voltage such as VCC 12V, 5V, 3.3V, and the number 1 is a GND.

In addition, when a motherboard and an expansion board are connected through a 10-pin cable, a method of eliminating noise that may be introduced into data during data transmission is provided.

In the cable connecting the main board and the expansion board according to the present embodiment, data lines and power supply lines coexist and data transmitted through the data lines due to electromagnetic waves generated from the power supply lines may be damaged due to high frequency errors.

In order to prevent such damage, a ferrite ring which surrounds the cable connecting the main board and the expansion board can be installed.

The ferrite ring increases the common mode impedance so that the high frequency error caused by the capacitance between the power line and the data line can be solved. That is, the ferrite ring acts as an inductor or a resistor for the data line enclosing the inside of the ferrite ring, thereby solving the high frequency error problem by bringing the LC filter or the RC filter effect.

The ferrite ring is also effective in absorbing high-frequency oscillations generated by transients or parasitic resonances in the circuit.

The ferrite ring may be provided on the inner surface or the outer surface of the case of the 10-pin connector.

Other detailed descriptions of interface standardization techniques such as a signal flow, a communication protocol, and an I / O interface for an electronic component interface device according to an embodiment of the present invention are not intended to limit the scope of the present invention to those skilled in the art. This is an issue and should be omitted.

In the above description, the respective components and / or functions described in the embodiments may be combined and combined, and those skilled in the art will understand that the present invention It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (6)

An electronic component interfacing device for connecting data between the main board and the expansion module and a connection line for transmitting power to the main board and the expansion module,
Data communication pins for data transfer;
A ground connection pin separated from the data communication pin and connected to a ground of the main board; And
And a supply voltage connection pin which is separated from the ground connection pin and is connected to a power supply of the main board to supply an operation voltage to the expansion module.
The method according to claim 1,
And the data communication pin comprises eight pins for transmitting data in 8-bit portions.
The method according to claim 1,
Wherein the data communication pin comprises two pins forming a receiving end and a transmitting end.
The method according to claim 1,
Wherein the electronic component interface device is a connector using any one of an 8-bit port, a GPIO input / output pin, a UART, a USART, and an RS-232C.
The method according to claim 1,
And a ferrite ring surrounding the connection line.
The method according to claim 1,
Wherein the ferrite ring is coupled to an inner or outer surface of a case of the electronic part interface device including the data communication pin, the ground connection pin, and the supply voltage connection pin.

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