Circuit for improving working reliability of radar

Abstract

The embodiment of the utility model relates to a circuit for improving the working reliability of a radar. The circuit comprises an input power supply, a printed board power supply bus, a fuse FU1, an assembly circuit and a transceiving circuit, the input power supply is electrically connected with the printed board power supply bus, the printed board power supply bus is electrically connected with the fuse FU1, and the output end of the fuse FU1 is electrically connected with the assembly circuit and the transceiving circuit. According to the circuit for improving the working reliability of the radar, the fuse is introduced into an original radar T / R assembly, normal working of a radar system is effectively guaranteed, meanwhile, secondary damage caused by short circuit of the assembly can be greatly reduced, the fuse is low in cost and convenient to replace after being fused, and the reliability of the radar is improved. While burning loss of circuits and devices is avoided, maintenance cost of the assembly is reduced, and reliability of the T / R assembly is improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the technical field of radar assembly, in particular to a circuit for improving radar working reliability. BACKGROUND

[0002] With the development of radar technology, T / R assembly as a key component in radar technology is also innovating in technology and devices, which provides strong technical support for radar system through signal transmission, reception, conversion, filtering and amplification. The high reliability of T / R assembly provides a strong guarantee for the safety production and scientific research of radar. In order to improve the reliability of T / R assembly, a series of reliability tests will be carried out during production test. The reliability enhancement test is used to expose the potential defects and weak links of T / R assembly, and then the failure causes are analyzed according to the problems found, the design and process are improved on this basis, and finally the improved T / R assembly is tested, and the effectiveness of the improvement measures is verified by comparing the test results before and after the improvement, so as to realize the reliability growth of the assembly. When a large number of assemblies work in the radar station, occasional individual assembly abnormal work or even damage occurs, which is specifically manifested as abnormal working current, open circuit or short circuit. The open circuit condition only exists in the fault assembly, there is no working current, but it does not affect the normal work of other assemblies; the short circuit condition is manifested as abnormal increase of working current, which lowers the power supply voltage, so that other assemblies cannot work normally, and the abnormal assembly is burned out. In order to prevent the influence of this short circuit phenomenon on the work of other assemblies in the whole radar station, the utility model is introduced, so that the short circuit assembly safely enters the open circuit state, thereby not affecting the normal work of the whole radar system. CONTENT

[0003] In order to avoid the shortcomings of the prior art, the utility model provides a circuit for improving radar working reliability, which solves the technical problem that the short circuit fault assembly in the existing radar T / R assembly is burned out by large current, and even the voltage of the whole power supply system of the station is lowered, so that the station cannot work normally.

[0004] According to the embodiment of the present disclosure, a circuit for improving radar working reliability is provided, which comprises: an input power supply, a printed board power supply bus, a fuse FU1, an assembly circuit and a transceiver circuit, wherein the input power supply is electrically connected with the printed board power supply bus, the printed board power supply bus is electrically connected with the fuse FU1, and the output end of the fuse FU1 is respectively electrically connected with the assembly circuit and the transceiver circuit.

[0005] Optionally, the model of the fuse FU1 is 541-3467.

[0006] Optionally, the size of the fuse FU1 is 6.1*2.69*2.69mm.

[0007] Optionally, the minimum and maximum working temperature of the fuse FU1 reaches -55℃ and +125℃ respectively.

[0008] Optionally, the rated current of the fuse FU1 is 10A.

[0009] Optionally, the fusing speed of the fuse FU1 is FF level.

[0010] Optionally, the assembly circuit includes a power conversion assembly and a control circuit, and the power conversion assembly is connected in series with the control circuit.

[0011] Optionally, the transceiving circuit includes one or more of a negative voltage circuit, an energy storage capacitor, a modulation circuit and a field effect tube, and the negative voltage circuit, the energy storage capacitor, the modulation circuit and the field effect tube are connected in parallel.

[0012] The technical scheme provided by the embodiment of the present disclosure can include the following beneficial effects:

[0013] In the embodiment of the present disclosure, by using the above-mentioned circuit for improving the working reliability of the radar, on the one hand, the fuse is introduced into the existing radar T / R assembly, which effectively ensures the normal working of the radar system, and also greatly reduces the secondary damage caused by the short circuit of the assembly. When the internal short circuit of the assembly occurs, a large current passes through the power supply circuit, and the devices on the line or even the entire line will be burned out, causing a large number of device losses, and the later maintenance is time-consuming and laborious. Once the power supply line is burned out, it will cause irreparable damage to the printed board, directly leading to the T / R assembly being unable to be repaired and becoming scrap, wasting a lot of manpower, material resources and financial resources. The fuse has low cost and is easy to replace after fusing, which not only avoids the loss of circuit and device burning, but also reduces the maintenance cost of the assembly and improves the reliability of the T / R assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0015] Figure 1 A schematic diagram of a circuit for improving the working reliability of the radar in an exemplary embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0016] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0017] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0018] This example implementation first provides a circuit for improving the reliability of radar operation. (Reference) Figure 1 As shown, the circuit for improving radar operational reliability may include: an input power supply, a printed circuit board power supply bus, a fuse FU1, a component circuit, and a transceiver circuit. The input power supply is electrically connected to the printed circuit board power supply bus, the printed circuit board power supply bus is electrically connected to the fuse FU1, and the output terminal of the fuse FU1 is electrically connected to the component circuit and the transceiver circuit, respectively.

[0019] Specifically, such as Figure 1 As shown, fuse FU1, component circuit, and transceiver circuit are all on the printed circuit board. The input power supply is electrically connected to the printed circuit board power supply bus, and the printed circuit board power supply bus is electrically connected to fuse FU1 on the printed circuit board. The output terminal of fuse FU1 is electrically connected to the component circuit and the transceiver circuit respectively. The output terminal of fuse FU1 outputs two power supplies, one to the component circuit and one to the transceiver circuit. The component circuit, transceiver circuit, input power supply, and printed circuit board power supply bus constitute the T / R component.

[0020] Below, we will refer to Figure 1 The various parts of the circuit described above for improving radar operational reliability in this example embodiment will be described in more detail.

[0021] In one embodiment, the fuse FU1 is model number 541-3467.

[0022] In one embodiment, the fuse FU1 has dimensions of 6.1 × 2.69 × 2.69 mm.

[0023] Specifically, the smaller size can meet the requirements of miniaturized and integrated components, and the main material of fuse FU1 is ceramic with gold-plated terminal material, which improves heat dissipation performance while ensuring the conductivity of the device and reducing power loss.

[0024] In one embodiment, the minimum and maximum operating temperature of the fuse FU1 reaches -55℃ and +125℃ respectively.

[0025] Specifically, the radar T / R module meets the full-temperature operating requirement.

[0026] In one embodiment, the rated current of the fuse FU1 is 10A.

[0027] In one embodiment, the fusing speed of the fuse FU1 is FF level.

[0028] Specifically, the high-speed fusing level can make the faulty module quickly enter the open circuit state, reducing the impact on the power supply and other components.

[0029] In one embodiment, the module circuit includes a power conversion module and a control circuit, and the power conversion module is connected in series with the control circuit.

[0030] Specifically, the module circuit includes a power conversion module and a control circuit, and the power conversion module converts the input current of the fuse to obtain a converted voltage, and transmits the converted voltage to the control circuit. When the power conversion module or the converted current passing through the control circuit has a short circuit fault, the operating current instantaneously increases, and the fuse FU1 will be fused to cut off the total power supply input.

[0031] In one embodiment, the transceiver circuit includes one or more of a negative voltage circuit, an energy storage capacitor, a modulation circuit, and a field effect tube, and the negative voltage circuit, the energy storage capacitor, the modulation circuit, and the field effect tube are connected in parallel.

[0032] Specifically, the current of the other branch of the fuse output end and the converted current of the power conversion module are input to the transceiver circuit. When the current of the other branch of the fuse output end or the converted current of the power conversion module has a short circuit fault and the current abnormally increases, the fuse FU1 will also be fused to cut off the total power supply input.

[0033] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present disclosure.

[0034] In the embodiments of the present disclosure, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0035] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0036] Other embodiments of the present disclosure will be apparent to those skilled in the art upon consideration of the specification and practice of the utility disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present disclosure following the general principles thereof and including modifications and equivalents that are obvious to those skilled in the art. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A circuit for improving the reliability of radar operation, characterized in that, The circuit includes: an input power supply, a printed circuit board power supply bus, a fuse FU1, a component circuit, and a transceiver circuit. The input power supply is electrically connected to the printed circuit board power supply bus, the printed circuit board power supply bus is electrically connected to the fuse FU1, and the output terminal of the fuse FU1 is electrically connected to the component circuit and the transceiver circuit, respectively.

2. The circuit for improving radar operational reliability according to claim 1, characterized in that, The fuse FU1 is model number 541-3467.

3. The circuit for improving radar operational reliability according to claim 1, characterized in that, The fuse FU1 has dimensions of 6.1×2.69×2.69mm.

4. The circuit for improving radar operational reliability according to claim 1, characterized in that, The minimum and maximum operating temperatures of the fuse FU1 are -55°C and +125°C, respectively.

5. The circuit for improving radar operational reliability according to claim 1, characterized in that, The rated current of the fuse FU1 is 10A.

6. The circuit for improving radar operational reliability according to claim 1, characterized in that, The fuse FU1 has a melting speed of FF.

7. The circuit for improving radar operational reliability according to claim 1, characterized in that, The component circuit includes a power conversion component and a control circuit, with the power conversion component and the control circuit connected in series.

8. The circuit for improving radar operational reliability according to claim 1, characterized in that, The transceiver circuit includes one or more of the following: a negative voltage circuit, an energy storage capacitor, a modulation circuit, and a field-effect transistor, wherein the negative voltage circuit, the energy storage capacitor, the modulation circuit, and the field-effect transistor are connected in parallel.

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