TWI621335B - Interface transferring module with isolation unit - Google Patents

Abstract

The present invention provides an interface conversion device having an isolation unit. The interface conversion device includes a first interface module, an interface signal conversion module, and a second interface module. The first interface module transmits a first data signal and a first clock signal to be converted into a second data signal and a second clock signal by an isolation unit. The interface signal conversion module outputs at least one second interface signal according to the second data signal and the second clock signal; the second interface module is electrically connected to the interface signal conversion module, and transmits at least one second interface signal to an electronic device .

Description

Interface conversion device with isolation unit

The present invention relates to an interface conversion device, and more particularly to an interface conversion device having an isolation unit.

If the electronic device is improperly used, it is easy to cause personal property damage. Therefore, in the safety regulations of each region, some classifications are made for the protection level of the electronic device, including a first level (Class I) and a second level ( Class II) and Class III. The Class I electronic device is the device that provides the grounding protection device. In short, the terminal at the input has a grounding wire. The second class (Class II) electronic device is a device that does not provide a grounding protection device, so the input terminal can be an AC connector that does not have a grounding wire. Class III electronic devices are mostly low voltage products, such as DC-DC converter modules.

In the safety specification, there is a difference between the primary side and the secondary side. The main purpose is to use the isolation element to leave the primary side and the secondary side so that the primary side or the secondary side receives an electric shock or other problem. The damage caused can be confined to a single side without spreading along with the circuit. However, in low-voltage products, especially in interface switching devices, the isolation components are mostly optically coupled or electromagnetically coupled as the signal transmission mode of the isolation component, optical coupling or electromagnetic coupling isolation component. The use of two components with a certain distance for the conversion of optical, electrical and electrical signals, that is, the primary side signal through the isolation element is transmitted in a discontinuous manner, rather than in a continuous manner, further Say, there is at least one signal state transition between the primary side signal and the secondary side signal. change.

Such optical coupling or electromagnetically coupled electromagnetic components are not only complicated in process but also costly. In addition, if there is a demand for higher isolation voltage (for example, 6KV, 10KV), the cost is more expensive.

Therefore, providing an interface conversion device having a low-cost isolation element is an important issue in the industry today.

In view of the above, the present invention discloses an interface switching device having an isolation unit for electrically connecting a control device and an electronic device. The control device transmits a first data signal and a first clock signal to the interface conversion device. The interface switching device includes: a first interface module, and receiving, by the first control device, the transmission sent by the control device includes: a first interface primary side unit, and an electrical connection control device, configured to receive the first data signal and The first clock signal is electrically connected to the primary side primary unit, and the first data signal and the first clock signal are respectively converted into a second data signal and a second clock signal by the isolation unit; The interface signal conversion module receives the isolation unit electrically connected to the first interface module, and receives the second data signal and the second clock signal, wherein the interface signal conversion module outputs according to the second data signal and the second clock signal At least one second interface signal; a second interface module electrically connected to the interface signal conversion module to transmit at least one second interface Number to the electronic device.

The isolation unit further includes a first isolation circuit electrically connected to the first interface primary side unit for receiving the first data signal, and a second isolation circuit electrically connected to the first interface primary side unit for receiving The first clock signal.

The first isolation circuit includes a first high voltage capacitor, and the second isolation circuit includes a second high voltage capacitor.

The first high voltage capacitor and the second high voltage capacitor are respectively high voltage capacitors with a withstand voltage greater than 0.5 kV.

The first interface primary side unit further includes: a first interface; and a first An amplifying circuit is disposed between the first interface and the second isolation circuit for receiving and amplifying the first data signal.

The first interface module further includes a second amplifying circuit disposed between the second isolation circuit and the interface signal conversion module for receiving and amplifying the second data signal.

The first clock signal and the first data signal are transmitted to the interface signal conversion module through the first isolation circuit and the second in a continuous manner.

The first data signal and the second data signal are standard data signals of a fast peripheral interconnection, and the first clock signal and the second clock signal are standard clock signals of a fast peripheral interconnection.

The second interface signal is a third generation universal serial bus interface signal.

The first interface module, the interface signal conversion module and the second interface module are disposed on a circuit board.

In summary, the interface conversion device of the embodiment of the present invention has an isolation unit capable of adjusting the withstand voltage, and includes a first high voltage capacitor and a second high voltage capacitor, so that the clock signal and the data signal are continuously connected by signals. The transmission of the first high-voltage capacitor and the second high-voltage capacitor can not only reduce the cost of the isolation unit, but also reduce the time and cost of development.

The above described features and advantages of the present invention will be more apparent from the following description.

1‧‧‧Interface conversion device

2‧‧‧Control device

11‧‧‧First interface module

12‧‧‧Second interface module

13‧‧‧Interface signal conversion module

14‧‧‧ memory unit

111‧‧‧First interface primary side unit

113‧‧‧Isolation unit

CLK1‧‧‧ first clock signal

CLK2‧‧‧ second clock signal

S1‧‧‧ first information signal

S2‧‧‧Second information signal

D+‧‧‧Second-generation universal serial bus differential signal positive signal

D-‧‧‧Second-generation universal serial bus differential signal negative signal

TX+‧‧‧Super High Speed Transmitter Differential Signal Positive Signal

TX-‧‧‧Super High Speed Transmitter Differential Signal Negative Signal

RX+‧‧‧Super High Speed Receiver Differential Signal Positive Signal

RX-‧‧‧ super high speed receiver differential signal negative signal

1110‧‧‧ first interface

1111‧‧‧First Amplifier Circuit

1112‧‧‧second amplification circuit

1131‧‧‧First isolation circuit

1132‧‧‧Second isolation circuit

FIG. 1 is a schematic diagram of an interface conversion device according to an embodiment of the present invention.

2 is a partial schematic view of an interface conversion device according to an embodiment of the present invention.

Various illustrative embodiments are described more fully hereinafter with reference to the accompanying drawings. However, the inventive concept may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Example. Rather, these exemplary embodiments are provided so that this invention will be in the In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Similar numbers always indicate similar components.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, such elements are not limited by the terms. These terms are used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the inventive concept. As used herein, the term "and/or" includes any of the associated listed items and all combinations of one or more.

The interface conversion device will be described below in conjunction with the drawings in at least one embodiment. However, the following embodiments are not intended to limit the disclosure.

[Embodiment of Interface Interchange Device of the Present Invention]

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic diagram of an interface conversion device according to an embodiment of the present invention. 2 is a partial schematic view of an interface conversion device according to an embodiment of the present invention.

In the embodiment of the present invention, the interface switching device 1 is electrically connected to a control device 2 and an electronic device (not shown).

The interface switching device 1 includes a first interface module 11 , a second interface module 12 , and an interface signal conversion module 13 . The first interface module 11 includes a first interface primary side unit 111 and an isolation unit 113. The first interface primary side unit 111 includes a first interface 1110, a first amplifying circuit 1111, and a second amplifying circuit 1112. At noon in this embodiment, the isolation unit 113 includes a first isolation circuit 1131 and a second isolation circuit 1132. In this embodiment, the interface switching device 1 further includes a circuit board (not shown), and the first interface module 11, the second interface module 12, and the interface signal conversion module 13 are all disposed on the circuit board (not shown) )on.

In the embodiment, the interface switching device 1 is electrically connected to the control device 2 through the first interface 1110 of the first interface module 11 . The first interface module 11 is electrically connected to the interface signal conversion module 13 . The interface signal conversion module 13 is electrically connected to the second interface module 12 . The interface switching device 1 is electrically connected to the electronic device (not shown) through the second interface module 12. The first interface primary side unit 111 of the first interface module 11 is electrically connected to the isolation unit 113. The isolation unit 113 is electrically connected to the interface signal conversion module 13 .

In this embodiment, the control device 2 provides a first data signal S1 and a first clock signal CLK1 to the interface conversion device 1. In this embodiment, the control device 2 is an electronic device having a Peripheral Component Interconnect Express (PCIE). In this embodiment, the control device 2 is a standard interface with a fast peripheral interconnection (Peripheral). Component Interconnect Express, PCIE) computer equipment.

After receiving the first clock signal CLK1 and the first data signal S1, the first interface 1110 transmits the first clock signal CLK1 and the first data signal S1 to the interface signal conversion module 13 through the first isolation circuit 113.

The first clock signal CLK1 can be transmitted to the first isolation circuit 1131 of the first isolation circuit 113 for signal conversion through a first filter circuit (not shown).

In this embodiment, the first data signal S1 may be filtered by a second filter circuit (not shown), then amplified by the first amplifier circuit 1111, and then transmitted to the second isolation circuit 1132. Signal conversion. In this embodiment, the first isolation circuit 1131 and the second isolation circuit 1132 respectively include a first high voltage capacitor (not shown) and a second high voltage capacitor (not shown).

In this embodiment, the first clock signal CLK1 is passed through the side of the first high voltage capacitor (not shown) of the first isolation circuit 1131, and is transmitted to the other side of the first high voltage capacitor (not shown). The signal is converted into a second clock signal CLK2. Similar to the first clock signal CLK1, the first data signal S1 passes through one side of the second high voltage capacitor (not shown) of the second isolation circuit 1132, and is transmitted to the other side of the second high voltage capacitor (not shown). After the signal conversion, it becomes the second data signal S2.

In this embodiment, the first clock signal CLK1 and the first data signal S1 are both electrical signals having a high frequency carrier, and thus the first clock signal CLK1 and the first The data signal S1 can be switched to the other side of the isolation circuit in a signal continuous manner by a first high voltage capacitor (not shown) and a second high voltage capacitor (not shown) instead of a signal discontinuous manner.

In this embodiment, the first high voltage capacitor (not shown) and the second high voltage capacitor (not shown) are high voltage capacitors verified by safety specifications, that is, the first high voltage capacitor (not shown) and the second high voltage. The capacitance (not shown) is verified in accordance with safety regulations in terms of structure and withstand voltage. Since the first clock signal CLK1 and the first data signal S1 are both signals having a high frequency carrier, the first high voltage capacitor (not shown) and the second high voltage capacitor can be respectively passed through a signal continuous manner (not shown) And generating a second clock signal CLK2 and a second data signal S2, respectively.

In the present embodiment, the first high voltage capacitor (not shown) and the second high voltage capacitor (not shown) include a chip type high voltage capacitor or a ceramic high voltage capacitor, which is not limited in the present invention. In this embodiment, the withstand voltage specifications of the first high voltage capacitor (not shown) and the second high voltage capacitor (not shown) include: 100V, 200V, 500V, 0.75KV, 1KV, 2KV, 3KV, 4KV, 5KV, Different specifications such as 6KV, 8KV, and 10KV, the above-listed specifications are only some common specifications, and are not limited in the present invention.

In addition, in the embodiment, the first isolation circuit 1131 further includes a trench structure (not shown) disposed under the first high voltage capacitor (not shown) for increasing the safety distance, that is, setting the first In the area of the board of a high voltage capacitor (not shown), the board below it is hollowed out. Similarly, the second isolation circuit 1132 also includes a trench structure (not shown) disposed under the second high voltage capacitor (not shown) for increasing the safety distance, that is, setting the second high voltage capacitor ( The area of the board, not shown, is hollowed out below it. In this embodiment, the first high voltage capacitor (not shown) and the second high voltage capacitor (not shown) are respectively a high voltage capacitor with a withstand voltage of 6 kV, a first high voltage capacitor (not shown) and a second high voltage capacitor ( The width of the groove structure below the figure is 6 mm, that is, the space distance on the safety specification has 6 mm, which can correspond to the withstand voltage of 6 kV. In this embodiment, the design of the trench structure (not shown) of the first isolation circuit 1131 and the second isolation circuit 1132, According to the first high voltage capacitor (not shown) and the second high voltage capacitor (not shown), that is, the isolation voltage specification of the interface conversion device 1 can be appropriately replaced by the first high voltage capacitor having different withstand voltage ( The design of the second high-voltage capacitor (not shown) and the trench structure (not shown) can quickly meet the safety specifications of different isolation voltages.

The first clock signal CLK1 is converted by the signal of the first isolation circuit 1131 to generate a second clock signal CLK2, and the second clock signal CLK2 can also be subjected to signal filtering or a signal through a third filter circuit (not shown). The third amplifying circuit (not shown) performs signal amplification before being transmitted to the interface signal conversion module 13. Similarly, the first data signal S1 is converted by the second isolation circuit 1132 to generate a second data signal S2. In this embodiment, the second data signal S2 is amplified by a second amplification circuit 1112 before being transmitted to the second data signal S2. Interface signal conversion module 13. In other embodiments, the second data signal S2 can also be subjected to signal filtering through a fourth filter circuit (not shown). The fourth filter circuit (not shown) may be disposed between the second isolation circuit 1132 and the second amplification circuit 1112 or between the second amplification circuit 1112 and the interface signal conversion module, which is not limited in the present invention.

In this embodiment, the interface signal conversion module 13 receives the second clock signal CLK2 and the second data signal S2 to perform different interface signal conversion. In this embodiment, the first clock signal CLK1 and the second clock signal are CLK2, the first data signal S1 and the second data signal S2 are all interface signals in the interface signal format of the Peripheral Component Interconnect Express (PCIE). The first clock signal CLK1 and the second clock signal CLK are the clock signals of the Peripheral Component Interconnect Express (PCIE). The first data signal S1 and the second data signal S2 are data signals of the Peripheral Component Interconnect Express (PCIE).

In this embodiment, the interface signal conversion module 13 is an interface of a Peripheral Component Interconnect Express (PCIE) interface. The signal format is converted to the third-generation universal serial bus (Universal Serial Bus 3.0, USB 3.X) interface signal format. In other embodiments, the interface signal conversion module 13 can convert the interface signal format of the Peripheral Component Interconnect Express (PCIE) to the second generation universal serial bus (USB 2.0). The interface signal format is not limited in the present invention.

The interface signal conversion module 13 converts the second clock signal CLK2 and the second data signal S2 of the interface signal format of the Peripheral Component Interconnect Express (PCIE) into a third generation universal sequence. The interface signal format of the bus (Universal Serial Bus 3.0, USB 3.X), that is, a second-generation universal serial bus differential signal positive signal D+, a second generation universal serial bus differential signal negative signal D-, a super high speed transmission differential signal positive signal TX+, a super high speed transmission differential signal negative signal TX-, an ultra high speed receiving differential signal positive signal RX+ and a super high speed receiving terminal differential Signal negative signal RX-.

The interface signal conversion module 13 transmits the converted signal of the third generation universal serial bus interface signal format to the second interface module 12. The second interface module 12 is transmitted to an electronic device (not shown).

In this embodiment, the first interface 1110 is a connector of a Peripheral Component Interconnect Express (PCIE), which includes a shortcut peripheral interconnect standard interface male connector or a fast peripheral interconnection. Standard interface female connector. The second interface module is a third-generation universal serial bus (USB 3.X) connector.

In this embodiment, the interface switching device 1 further includes a memory unit 14 electrically connected to the interface signal conversion module 13 for storing related information of the interface signal conversion module.

[Possible effects of the examples]

In summary, the interface conversion device of the embodiment of the present invention has an adjustable tolerance The pressure-sized isolation unit includes a first high-voltage capacitor and a second high-voltage capacitor, so that the clock signal and the data signal are respectively transmitted through the first high-voltage capacitor and the second high-voltage capacitor in a signal continuous manner, thereby not only reducing isolation The cost of the unit can reduce the time and cost of research and development.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the invention.

Claims (8)

An interface switching device having an isolation unit for electrically connecting a control device and an electronic device, the control device transmitting a first data signal and a first clock signal to the interface conversion device, the interface conversion device comprising: a first interface module, receiving a transmission sent by the first control device transmitted by the control device, comprising: a first interface primary side unit electrically connected to the control device, configured to receive the first data signal and the a first clock signal; an isolation unit electrically connected to the first interface primary side unit, wherein the first data signal and the first clock signal are respectively converted into a second data signal and a second time by the isolation unit The signal signal conversion module is configured to receive the second data signal and the second clock signal by the isolation unit electrically connected to the first interface module, wherein the interface signal conversion module is configured according to the second The data signal and the second clock signal output at least one second interface signal; and a second interface module electrically connected to the interface signal conversion module Sending the at least one second interface signal to the electronic device; wherein the isolation unit further includes: a first isolation circuit electrically connected to the first interface primary side unit for receiving the first data signal, wherein the The first isolation circuit includes a first high voltage capacitor, and a second isolation circuit electrically connected to the first interface primary side unit for receiving the first clock signal, wherein the second isolation circuit includes a second High voltage capacitors. The interface conversion device of claim 1, wherein the first high voltage capacitor and the second high voltage capacitor are respectively high voltage capacitors with a withstand voltage greater than 0.5 kV. The interface conversion device of claim 1, wherein the first interface is The secondary unit further includes: a first interface; and a first amplifying circuit disposed between the first interface and the second isolation circuit for receiving and amplifying the first data signal. The interface device of claim 3, wherein the first interface module further comprises: a second amplifying circuit disposed between the second isolation circuit and the interface signal conversion module for receiving Zoom in on the second data signal. The interface switching device of claim 3, wherein the first clock signal and the first data signal are transmitted to the interface signal conversion module through the first isolation circuit and the second in a continuous manner. The interface conversion device of claim 1, wherein the first data signal and the second data signal are a fast peripheral interconnection standard data signal, and the first clock signal and the second clock signal are one Fast peripheral interconnect standard clock signal. The interface conversion device of claim 1, wherein the second interface signal is a third generation universal sequence bus signal. The interface switching device of claim 1, wherein the first interface module, the interface signal conversion module, and the second interface module are disposed on a circuit board.