Digital photoelectric combined transformer

Abstract

The utility model discloses a digital photoelectric combined mutual inductor, which comprises an optical fiber sensor, a digital unit, an optical receiver and an optical transmitter, the optical fiber sensor is connected with the digital unit, the optical receiver is connected with the optical transmitter through an optical fiber, one side of the optical fiber sensor is provided with a Rogowski coil, the other side of the Rogowski coil is connected with the digital unit, and the optical transmitter is connected with the Rogowski coil. A light source, a light source driver, a polarization analyzer and an A / D converter are arranged in the digital unit, one side of the Rogowski coil in the digital unit is connected with the light source, and the other side of the light source is connected with the light source driver. By adopting the digital photoelectric combined mutual inductor, the response time of the LED is prevented from being reduced due to the parasitic capacitance effect, and the speed is improved; and the influence of the current characteristic of the driver on the characteristics of the LED optical switch is avoided.

Description

Technical Field

[0001] The utility model relates to the field of combined mutual inductors, in particular to a digital photoelectric combined mutual inductor. Background Art

[0002] In the field of photoelectric conversion, photoelectric transformers play a vital role as a bridge connecting optical signals and electrical signals. With the rapid development of science and technology, photoelectric transformer technology has also made great progress.

[0003] At present, optoelectronic transformer technology has achieved a comprehensive breakthrough from basic principles to practical applications. Taking silicon-based photodiodes as an example, they have the characteristics of high sensitivity, fast response and low noise, and are widely used in optical communications, spectral analysis and other fields. In addition, with the integration of nanotechnology, optoelectronic transformers have achieved miniaturization in size and optimization in performance, providing strong support for the development of integrated optoelectronic systems.

[0004] The development trend of optoelectronic transformer technology will be more significant. In the field of new materials, such as two-dimensional materials and quantum dots, the application will further broaden the performance boundaries of optoelectronic transformers. At the same time, with the rise of smart manufacturing, the Internet of Things and other fields, optoelectronic transformers will be more integrated into intelligent and networked systems to achieve more complex and accurate optoelectronic signal conversion.

[0005] However, the current optoelectronic transformer technology also faces some challenges. How to further improve performance, reduce costs, simplify manufacturing processes, and how to find new applications in a wider range of fields are all issues worthy of in-depth consideration. Utility Model Content

[0006] The utility model aims to provide a digital photoelectric combined mutual inductor, which avoids the parasitic capacitance effect to reduce the response time of LED and improves the speed; and avoids the influence of the current characteristics of the driver on the optical switch characteristics of LED.

[0007] To achieve the above object, the utility model provides a digital photoelectric combined mutual inductor, including an optical fiber sensor, a digital unit, an optical receiver, and an optical transmitter. The optical fiber sensor is connected to the digital unit, and the optical receiver is connected to the optical transmitter via an optical fiber.

[0008] Preferably, a Rogowski coil is provided on one side of the optical fiber sensor, and the other side of the Rogowski coil is connected to a digital unit, in which a light source, a light source driver, a polarization analysis, and an A / D converter are provided, and one side of the Rogowski coil is connected to the light source in the digital unit, and the other side of the light source is connected to the light source driver.

[0009] Preferably, the other side of the Rogowski coil in the digital unit is connected to a polarization analysis, the other side of the polarization analysis is connected to an A / D converter, and the other side of the A / D converter is connected to an FPGA.

[0010] Preferably, the number of the A / D converters is two, the A / D converters are 14-bit successive approximation type, and the output of the A / D converters is serial. The timing of starting and outputting A / D sampling are controlled by the MPU.

[0011] Preferably, the light source adopts an aluminum gallium arsenide light emitter excited by high-efficiency optical power.

[0012] Preferably, the optical receiver is provided with a photodiode, a trans-impedance amplifier TIA, a limiting amplifier, and a peripheral interface, a limiting amplifier is provided on one side of the trans-impedance amplifier, and a peripheral interface is provided on one side of the limiting amplifier.

[0013] Preferably, the optical transmitter is provided with a photodiode, an optical driver, and a peripheral interface, and a peripheral interface is provided on one side of the optical driver.

[0014] Preferably, the photodiode and the transimpedance amplifier (TIA) circuit form a HFBR-2418 integrated photodetector.

[0015] Therefore, the utility model adopts the above-mentioned digital photoelectric combination transformer to avoid the parasitic capacitance effect to reduce the response time of the LED and improve the speed; and avoid the influence of the current characteristics of the driver on the optical switch characteristics of the LED.

[0016] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an optical fiber sensor and a digital unit of a digital photoelectric combined mutual inductor of the utility model;

[0018] Figure 2 The utility model is a schematic diagram of an optical receiver and an optical driver of a digital photoelectric combination transformer. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Embodiment 1

[0022] like Figure 1-2 As shown, the utility model is a digital photoelectric combined mutual inductor, comprising an optical fiber sensor, a digital unit, an optical receiver, and an optical transmitter. The optical fiber sensor is connected to the digital unit, and the optical receiver is connected to the optical transmitter via an optical fiber.

[0023] A Rogowski coil is installed on one side of the optical fiber sensor. It has no core magnetic saturation problem, and the output is linear. The corresponding dynamic characteristics are excellent, and it can meet the different needs of control, measurement, protection and fee measurement with high resolution and accuracy. A dedicated digital integrator chip is used to realize the integration operation of the output signal of the Rogowski coil.

[0024] The other side of the Rogowski coil is connected to a digital unit, in which a light source, a light source driver, a polarization analyzer, and an A / D converter are provided. One side of the Rogowski coil is connected to the light source in the digital unit, and the other side of the light source is connected to the light source driver.

[0025] The other side of the Rogowski coil is connected to the polarization analysis in the digital unit, the other side of the polarization analysis is connected to the A / D converter, and the other side of the A / D converter is connected to the FPGA.

[0026] There are two A / D converters, which are 14-bit successive approximation type. The output of the A / D converter is serial. The timing of starting and outputting A / D sampling are controlled by the MPU.

[0027] The light source uses an aluminum gallium arsenide light emitter with high-efficiency optical power excitation. Three-way NAND gate 74ACT00 parallel output drives the light emitter. Provide a pre-bias voltage to the LED light emitter to avoid the parasitic capacitance effect that reduces the response time of the LED and increases the operating rate; use frequency compensation technology (acceleration capacitor) to improve the rising and falling edges of the optical signal to avoid the influence of the current characteristics of the driver on the optical switch characteristics of the LED.

[0028] The optical receiver is provided with a photodiode, a transimpedance amplifier TIA, a limiting amplifier, and a peripheral interface. A limiting amplifier is provided on one side of the transimpedance amplifier, and a peripheral interface is provided on one side of the limiting amplifier.

[0029] The optical transmitter is provided with a photodiode, an optical driver and a peripheral interface, and one side of the optical driver is provided with a peripheral interface.

[0030] The photodiode and the transimpedance amplifier TIA circuit form the HFBR-2418 integrated photodetector. It is powered by a single power supply and has an automatic sleep function. The output is serial. The start and output timing of A / D sampling are controlled by the MPU. Therefore, the utility model adopts the above-mentioned stable detachable wheel camper, which not only ensures the detachable function of the wheel and the fixing clip, but also has a fixing groove to improve the overall stability of the device.

[0031] Therefore, the utility model adopts the above-mentioned digital photoelectric combination transformer to avoid the parasitic capacitance effect to reduce the response time of the LED and improve the speed; and avoid the influence of the current characteristics of the driver on the optical switch characteristics of the LED.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A digital photoelectric combination transformer, characterized in that: The invention comprises an optical fiber sensor, a digital unit, an optical receiver and an optical transmitter. The optical fiber sensor is connected to the digital unit, the optical receiver and the optical transmitter are connected via an optical fiber, a Rogowski coil is arranged on one side of the optical fiber sensor, and the other side of the Rogowski coil is connected to the digital unit, a light source, a light source driver, a polarization analyzer and an A / D converter are arranged in the digital unit, one side of the Rogowski coil is connected to the light source in the digital unit, and the other side of the light source is connected to the light source driver.

2. A digital optoelectronic combination transformer according to claim 1, characterized in that: The other side of the Rogowski coil is connected to a polarization analysis in the digital unit, the other side of the polarization analysis is connected to an A / D converter, and the other side of the A / D converter is connected to an FPGA.

3. A digital optoelectronic combination transformer according to claim 1, characterized in that: The number of the A / D converters is two, and the A / D converters are of 14-bit successive approximation type. The output of the A / D converter is serial, and the timing of starting and outputting the A / D sampling are controlled by the MPU.

4. A digital optoelectronic combination transformer according to claim 1, characterized in that: The light source adopts an aluminum gallium arsenide light emitter excited by high-efficiency optical power.

5. A digital optoelectronic combination transformer according to claim 1, characterized in that: The optical receiver is provided with a photodiode, a transimpedance amplifier TIA, a limiting amplifier, and a peripheral interface. A limiting amplifier is provided on one side of the transimpedance amplifier, and a peripheral interface is provided on one side of the limiting amplifier.

6. A digital optoelectronic combination transformer according to claim 1, characterized in that: The optical transmitter is provided with a photodiode, an optical driver, and a peripheral interface, and one side of the optical driver is provided with a peripheral interface.

7. A digital photoelectric combination transformer according to claim 5, characterized in that: The photodiode and transimpedance amplifier (TIA) circuit form the HFBR-2418 integrated photodetector.

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