Multi-path differential pulse signal isolation conversion circuit
By designing a multi-channel differential pulse signal isolation conversion circuit, using a signal isolation converter and a matching coupling resistor network circuit, the problem of damage caused by direct transmission of multiple differential pulse signals to the core hardware is solved, and signal stability and anti-interference are achieved. Reduces hardware maintenance costs.
Patent Information
- Application Number
- CN202411425923.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-01-10
AI Technical Summary
The direct transmission of existing multiplexed differential pulse signals to the core hardware can easily lead to hardware damage and interfere with the transmission of signals to other circuits, affecting data acquisition efficiency and economic benefits.
A multi-channel differential pulse signal isolation conversion circuit is designed, including a differential pulse signal input circuit, a signal isolation converter and a matching coupling resistor network circuit, and isolate and convert signals through specific wiring methods to prevent interference conduction and protect core hardware.
It realizes effective isolation and protection of core hardware, improves signal stability and anti-interference capabilities, and reduces hardware maintenance costs and production debugging cycles.
Smart Images
Figure HDA0005082193090000011
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of signal conversion, and in particular relates to a multi-channel differential pulse signal isolation conversion circuit. Background Art
[0002] Most of the existing multi-channel differential pulse signals are directly collected by the core hardware and directly connected when used. When it is necessary to monitor and collect data for a long time without interruption, the directly collected data is prone to interference. When the multi-channel differential pulse changes rapidly, the signal amplitude suddenly increases, and the core hardware is prone to failure or damage. At the same time, this direct wiring method makes it easy for the core hardware to transmit interference signals to other circuits, which is not conducive to improving economic benefits and data collection efficiency. Therefore, it is necessary to propose improvements. Summary of the invention
[0003] The technical problem solved by the present invention is to provide a multi-channel differential pulse signal isolation conversion circuit. The purpose of the present invention is to overcome the problem that the existing differential pulse signal is directly transmitted to the core hardware, which easily causes damage to the core hardware.
[0004] In order to achieve the above object, the technical solution adopted by the present invention is:
[0005] A multi-channel differential pulse signal isolation conversion circuit, comprising a differential pulse signal input circuit, a signal isolation converter, a differential pulse signal output circuit, and a matching coupling resistor network circuit, wherein the output of the differential pulse signal input circuit is connected to the input of the signal isolation converter, the output of the signal isolation converter is connected to the input of the differential pulse signal output circuit, and the output of the differential pulse signal output circuit is connected to the input of the matching coupling resistor network circuit;
[0006] The multiple differential pulse signals are sent to the signal isolation converter through the differential pulse signal input circuit. The signal isolation converter isolates and converts the multiple differential pulse signals and sends them to the differential pulse signal output circuit. The differential pulse signal output circuit sends the isolated and converted differential pulse signals to the matching coupling resistor network circuit. The matching coupling resistor network circuit outputs the isolated and converted differential pulse signals.
[0007] Further limitation of the above scheme is that the differential pulse signal input circuit, signal isolation converter, differential pulse signal output circuit, and matching coupling resistor network circuit are all multi-channel, and the outputs of the multi-channel differential pulse signal input circuit are connected one-to-one with the inputs of the multi-channel signal isolation converter (2), the outputs of the multi-channel signal isolation converter are connected one-to-one with the inputs of the multi-channel differential pulse signal output circuit, and the outputs of the multi-channel differential pulse signal output circuit are connected with the inputs of the multi-channel matching coupling resistor network circuit.
[0008] A further limitation of the above scheme also includes a DC power supply, which is connected to the signal isolation converter to provide working power for it.
[0009] The advantages of the present invention compared with the prior art are:
[0010] 1. This scheme designs a multi-channel differential pulse signal isolation conversion circuit, inputs the multi-channel differential pulse signal into the isolation converter according to a specific wiring method, and the isolation converter isolates and converts the differential signal within a certain range. The output end is matched with a coupling resistor network. The signal is generated quickly, requires fewer components, is stable, anti-interference, and does not attenuate. The core hardware is effectively isolated and protected, and the processing and manufacturing cost is low;
[0011] 2. A multi-channel differential pulse signal isolation conversion circuit of this scheme adopts all discrete devices and circuit board installation technology, and the interface adopts standard components, which realizes the isolation conversion of multi-channel differential pulse signals and effectively protects the core hardware; at the same time, the output multi-channel differential pulse signal matches the coupling resistor network, and the signal is stable and anti-interference;
[0012] 3. This solution has a simple manufacturing process, low cost, and is suitable for multi-channel differential pulse signal transmission in various occasions, so as to overcome the disadvantage that the existing differential pulse signal is directly transmitted to the core hardware, which easily causes damage to the core hardware;
[0013] 4. This solution is applied in a certain type of multi-channel differential pulse signal acquisition equipment, making the equipment work stably and reliably, improving the utilization efficiency, greatly reducing the hardware maintenance cost, and shortening the production debugging cycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The present invention provides a schematic diagram of a multi-channel differential pulse signal isolation conversion circuit. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0017] See also Figure 1 , describe the embodiments of the present invention in detail.
[0018] Embodiment 1: A multi-channel differential pulse signal isolation conversion circuit, see Figure 1 As shown, it includes a differential pulse signal input circuit 1, a signal isolation converter 2, a differential pulse signal output circuit 4, and a matching coupling resistor network circuit 5. The output of the differential pulse signal input circuit 1 is connected to the input of the signal isolation converter 2, the output of the signal isolation converter 2 is connected to the input of the differential pulse signal output circuit 4, and the output of the differential pulse signal output circuit 4 is connected to the input of the matching coupling resistor network circuit 5. It also includes a DC power supply 3, which is connected to the signal isolation converter 2 to provide working power for it.
[0019] Working principle: Multiple differential pulse signals are sent to the signal isolation converter 2 through the differential pulse signal input circuit 1 according to a specific wiring method. The signal isolation converter 2 isolates and converts the multiple differential pulse signals within a certain range and sends them to the differential pulse signal output circuit 4. The differential pulse signal output circuit 4 sends the isolated and converted differential pulse signals to the matching coupling resistor network circuit 5. Finally, the matching coupling resistor network circuit 5 outputs the isolated and converted differential pulse signals.
[0020] The multi-channel differential pulse signal isolation conversion circuit has fast signal generation speed, few components, stable signal, anti-interference, no attenuation, effective isolation and protection of core hardware, and low processing and manufacturing cost. The circuit is suitable for multi-channel differential pulse signal transmission in various occasions, overcoming the disadvantage that the existing differential pulse signal is directly transmitted to the core hardware, which easily causes damage to the core hardware, and is convenient for maintenance and easy to implement.
[0021] In this multi-channel differential pulse signal isolation and conversion circuit, all devices use discrete devices and circuit board installation technology, and the interface uses standard components, which realizes the isolation and conversion of multi-channel differential pulse signals and effectively protects the core hardware; at the same time, the output multi-channel differential pulse signal matches the coupling resistor network, and the signal is stable and anti-interference.
[0022] Example 2: See Figure 1 As shown, the differential pulse signal input circuit 1, the signal isolation converter 2, the differential pulse signal output circuit 4, and the matching coupling resistor network circuit 5 are all multi-channel, and the multiple outputs of the differential pulse signal input circuit 1 are connected one-to-one with the multiple inputs of the signal isolation converter 2, the multiple outputs of the signal isolation converter 2 are connected one-to-one with the multiple inputs of the differential pulse signal output circuit 4, and the multiple outputs of the differential pulse signal output circuit 4 are connected with the multiple inputs of the matching coupling resistor network circuit 5.
[0023] The working principle of the multi-channel differential pulse signal isolation and conversion circuit is as follows: the multi-channel differential pulse signals are sent to the multi-channel signal isolation converter 2 through the specific wiring method of the differential pulse signal input circuit 1, the DC power supply 3 provides the working power to the multi-channel signal isolation converter 2, the multi-channel signal isolation converter 2 isolates and converts the multi-channel differential pulse signals and sends them to the multi-channel differential pulse signal output circuit 4, the multi-channel differential pulse signal output circuit 4 sends the isolated and converted differential pulse signals to the multi-channel matching coupling resistor network circuit 5, and finally the matching coupling resistor network circuit 5 outputs the isolated and converted differential pulse signals.
[0024] After the circuit is applied in a certain type of multi-channel differential pulse signal acquisition equipment, the equipment works stably and reliably, the utilization efficiency is improved, the hardware maintenance cost is greatly reduced, and the production debugging cycle is shortened.
[0025] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A multi-channel differential pulse signal isolation conversion circuit, characterized in that: The invention comprises a differential pulse signal input circuit (1), a signal isolation converter (2), a differential pulse signal output circuit (4), and a matching coupling resistor network circuit (5), wherein the output of the differential pulse signal input circuit (1) is connected to the input of the signal isolation converter (2), the output of the signal isolation converter (2) is connected to the input of the differential pulse signal output circuit (4), and the output of the differential pulse signal output circuit (4) is connected to the input of the matching coupling resistor network circuit (5); The multiple differential pulse signals are sent to the signal isolation converter (2) through the differential pulse signal input circuit (1); the signal isolation converter (2) isolates and converts the multiple differential pulse signals and sends them to the differential pulse signal output circuit (4); the differential pulse signal output circuit (4) sends the isolated and converted differential pulse signals to the matching coupling resistor network circuit (5); and the matching coupling resistor network circuit (5) outputs the isolated and converted differential pulse signals.
2. The multi-channel differential pulse signal isolation conversion circuit according to claim 1, characterized in that: The differential pulse signal input circuit (1), the signal isolation converter (2), the differential pulse signal output circuit (4), and the matching coupling resistor network circuit (5) are all multi-channel. The outputs of the multi-channel differential pulse signal input circuit (1) are connected one-to-one with the inputs of the multi-channel signal isolation converter (2). The outputs of the multi-channel signal isolation converter (2) are connected one-to-one with the inputs of the multi-channel differential pulse signal output circuit (4). The outputs of the multi-channel differential pulse signal output circuit (4) are connected with the inputs of the multi-channel matching coupling resistor network circuit (5).
3. A multi-channel differential pulse signal isolation conversion circuit according to claim 1 or 2, characterized in that: It also comprises a DC power supply (3), which is connected to the signal isolation converter (2) to provide working power therefor.