A multi-output power supply for anti-drone systems

Abstract

This utility model discloses a multi-output power supply for an anti-drone system, including a housing. The housing houses an input component, several AC / DC conversion components, several DC / DC conversion components, and an energy storage output component. The input component is electrically connected to each AC / DC conversion component. In this utility model, the power module is a standard-volume brick-shaped module with high power density and a height of 12.7mm, meeting the volume and height requirements. The modular design significantly reduces the types and number of components in the overall design, greatly improving system reliability. The input circuit includes a filter circuit to filter out differential-mode and common-mode ripple from the operating voltage and current of the AC / DC conversion components, meeting system EMI requirements. The output filter circuit uses a large-capacity electrolytic capacitor (sixteenth capacitor) to store energy at the output to cope with the pulsating load of the subsequent stage (TR). Simultaneously, a Π-type circuit is used to filter out interference at the output terminal near the output interface, while also suppressing external interference to the power port.

Description

Technical Field

[0001] This utility model relates to the field of power electronics technology, specifically to a multi-output power supply for anti-drone systems. Background Technology

[0002] Existing power modules generally consist of power input circuits, AC / DC conversion circuits, and DC / DC conversion circuits. However, these circuit structures are complex, making power module maintenance inconvenient. Moreover, current power modules lack effective filtering functions, resulting in unstable output voltage. Furthermore, the limited number of output voltage lines affects the practicality of the power modules, especially for anti-drone systems, where the limited number of output voltage lines cannot meet the requirements due to the large number of various signal lines.

[0003] In summary, a multi-output power supply for anti-drone systems is designed. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a multi-output power supply for anti-drone systems.

[0005] This utility model achieves the above objectives through the following technical solutions: A multi-output power supply for an anti-drone system includes a housing. The housing contains an input component, several AC / DC conversion components, several DC / DC conversion components, and an energy storage output component. The input component is electrically connected to each AC / DC conversion component. One AC / DC conversion component is electrically connected to each DC / DC conversion component. The output terminals of the AC / DC conversion components and the DC / DC conversion components are all electrically connected to the energy storage output component. Both the AC / DC conversion component and the DC / DC conversion component are electrically connected to an MCU, and the MCU is wirelessly connected to an external communication terminal through a communication module.

[0006] Preferably, the housing is a fully enclosed aluminum alloy structure with natural cooling to enhance the heat transfer capability of the power supply. The maximum external dimensions of the housing (excluding the panel) are ≤400mm × 190mm × 35mm (width × height × depth), and it is made of aluminum alloy to reduce the weight of the power supply.

[0007] Preferably, one side of the housing is equipped with an input interface and an output interface. In accordance with the electrical interface requirements of the DC power supply outsourcing agreement, and for ease of use and maintenance, the input and output interfaces primarily utilize the J30J series from AVIC Optoelectronic Technology Co., Ltd., a manufacturer specializing in power supplies. This bayonet-type quick-connect system is easy to operate, provides a reliable connection, and is vibration- and shock-resistant. The highly reliable hyperboloid spring-loaded connector ensures smooth insertion and removal with low contact resistance. The plug and socket termination method is soldering, suitable for power transmission and signal connection. The product is suitable for various military and civilian environments, possessing properties such as moisture resistance, salt spray resistance, mildew resistance, rain resistance, and dust resistance.

[0008] Preferably, the input component includes an input circuit, which includes a varistor, a first resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a bidirectional diode, a first common-mode inductor, and a second common-mode inductor. The input side of the first common-mode inductor is connected in parallel with the varistor. The first resistor and the first capacitor are also connected in parallel with the varistor. The two ends of the input side of the first common-mode inductor are grounded through the second capacitor and the third capacitor, respectively. The output side of the first common-mode inductor is connected to the input side of the second common-mode inductor through the fourth capacitor. The output side of the second common-mode inductor is connected in parallel with the bidirectional diode. The fifth capacitor is also connected in parallel with the bidirectional diode. The two ends of the output side of the second common-mode inductor are grounded through the sixth capacitor and the seventh capacitor, respectively.

[0009] Preferably, the energy storage output component includes an output filter circuit, which includes a first diode, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, a third common-mode inductor, and a fourth common-mode inductor. The input side of the third common-mode inductor is connected to the output terminal of the AC / DC converter or the DC / DC converter. The input side of the third common-mode inductor is connected in parallel with the first diode. The eighth capacitor is connected in parallel with the first diode. The two ends of the input side of the third common-mode inductor are grounded through the ninth and tenth capacitors, respectively. The eighth capacitor is connected in parallel with the input side of the third common-mode inductor. The output side of the third common-mode inductor is connected to the input side of the fourth common-mode inductor through the twelfth and thirteenth capacitors. The output side of the fourth common-mode inductor is connected in parallel with the fourteenth and sixteenth capacitors, respectively. The two ends of the output side of the fourth common-mode inductor are grounded through the fifteenth and seventeenth capacitors, respectively.

[0010] The beneficial effects of this utility model are as follows: In the multi-output power supply for the anti-drone system, the power module is a standard volume brick type with high power density and a height of 12.7mm, meeting the volume and height requirements; the modular design greatly reduces the types and number of components in the overall design, which can greatly improve the reliability of the system; the input circuit is equipped with a filter circuit to filter out the differential and common mode ripple of the operating voltage and current of the AC / DC conversion components to meet the system EMI requirements; the output filter circuit uses a large-capacity electrolytic capacitor (sixteenth capacitor) to store energy at the output to cope with the pulsating load of the subsequent TR, and at the same time uses a Π-type circuit to filter out interference at the output end near the output interface, while suppressing external interference to the power port. Attached Figure Description

[0011] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a system schematic diagram of this utility model; Figure 2 This is a circuit diagram of the input circuit of this utility model; Figure 3 This is the circuit diagram of the output filter circuit of this utility model. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0013] like Figures 1-3 As shown, a multi-output power supply for an anti-drone system includes a housing 1. The housing 1 contains an input component 2, several AC / DC conversion components 3, several DC / DC conversion components 5, and an energy storage output component. The input component 2 is electrically connected to each AC / DC conversion component 3, and one AC / DC conversion component 3 is electrically connected to each DC / DC conversion component 5. The output terminals of both AC / DC conversion components 3 and DC / DC conversion components 5 are electrically connected to the energy storage output component. Both AC / DC conversion components 3 and DC / DC conversion components 5 are electrically connected to an MCU. The MCU is wirelessly connected to an external communication terminal via a communication module.

[0014] Input component 2 mainly realizes input filtering and protection, effectively suppressing EMI at the AC input terminal and suppressing the damage of peak voltage to the power supply device under complex power supply environments.

[0015] A filter circuit is designed between the input AC power supply side and the AC / DC converter 3 to filter out differential-mode and common-mode ripple in the operating voltage and current of the AC / DC converter 3, in order to meet the system's EMI requirements. When a high-frequency transient spike occurs in the AC input voltage, the input component 2 can simultaneously protect the AC / DC converter 3 from damage. A varistor RV1 is designed at the inlet (AC input port) of the input component 2, and a TVS diode is designed at the outlet (AC / DC converter inlet) of the input component 2 to ensure that the AC / DC converter 3 does not exceed 450V under any condition.

[0016] The input filtering section is housed within an independent, enclosed aluminum alloy structure, consisting of inductors, X capacitors, and Y capacitors. Its functions are twofold: first, to suppress high-frequency noise interference between the power supply's internal and external components; and second, to protect against external overvoltage surges and disturbances such as transient voltages. The input EMI circuit comprises one input terminal, one output terminal, and two ground terminals (connected to the chassis).

[0017] AC / DC converter module 3, with an integrated AC / DC converter module as its main body and auxiliary peripheral components, completes the power conversion and voltage output from AC220V to DC28V and DC12V. The selected AC / DC converter module features small size, high power density, strong anti-interference capability, good stability, and superior performance. It is a full-function module with comprehensive protection functions.

[0018] AC / DC module protection function: Input undervoltage protection When the converter's input voltage falls below its minimum allowable input voltage limit, the converter will inevitably increase the input current to maintain output power. This will increase the operating current stress on related components in the input circuit, posing a safety hazard. This module is designed with an input voltage undervoltage protection function; when the input voltage falls below the safe input voltage, the output will be immediately shut down. When the converter starts under load, the instantaneous loading when the input voltage reaches the converter's turn-on voltage threshold will cause a significant drop in the input voltage, resulting in oscillations between the module's start-up and shutdown. This converter's design provides a large hysteresis margin between the start-up voltage and the undervoltage shutdown voltage threshold, effectively solving this problem. The power module can only be turned on when the input voltage rises above the typical turn-on voltage threshold. Furthermore, after the converter is operating normally, the input voltage must drop to the turn-off voltage threshold before the converter can be shut down.

[0019] Input overvoltage protection When the converter's input voltage exceeds its maximum permissible input voltage limit, it increases the operating voltage stress on related components on the input line, exceeding their maximum permissible operating voltage range and posing a safety hazard. This converter allows a static input voltage significantly higher than its operating input voltage. It is designed with input voltage overvoltage protection; when the input voltage exceeds the safe input voltage, the output is immediately shut down. The converter's design provides a large hysteresis margin between the input overvoltage protection threshold and the overvoltage recovery threshold. When the input voltage rises above the typical overvoltage protection threshold, the power converter immediately shuts down. The converter can only resume normal operation when the input voltage drops to the typical overvoltage recovery threshold.

[0020] Output overvoltage protection When the output voltage exceeds the maximum output voltage protection threshold, the power supply immediately stops working. A power-on reset is required for the output voltage to recover.

[0021] Over-temperature protection The module has a built-in temperature sensor, and the thermal protection circuit shuts down the converter when its operating temperature exceeds the maximum withstand temperature. The converter also allows itself to automatically resume operation when the temperature drops to the specified restart temperature.

[0022] Output overcurrent protection If the output load current exceeds the rated overcurrent point, the converter will actively enter a "hiccup" mode, which involves turning the converter on and off at a frequency of 1Hz until the fault is cleared. This mechanism effectively protects the converter or connected load from overheating and damage.

[0023] The energy storage output component uses a large-capacity electrolytic capacitor to store energy at the output to cope with the pulsating load of the subsequent TR. At the same time, a Π-type circuit is used to filter out interference at the output end near the output interface 5, and to suppress external interference to the power supply port.

[0024] The working principle is: When the input switch is connected to the AC220V input power supply, the input power is filtered to suppress external interference noise from the power supply equipment. The input protection component works in conjunction with the filter component to complete the input protection.

[0025] The AC voltage passes through the input common-mode rejection circuit in the AC / DC component, further filtering out input interference noise and impurities in the supply voltage before entering the AC / DC conversion module. The AC / DC power conversion module converts the input AC voltage into the DC 28V and DC 12V output voltages required by the system. The total output power of a single power supply is no less than 750W, improving system reliability from the core component level. This module is a full-function module, integrating PFHC and DC / DC, achieving active power factor correction while completing DC / DC conversion. It features small size, high reliability, good electromagnetic compatibility, and comprehensive protection functions, including independent overvoltage, overcurrent, short circuit, and module overheat protection. It has a wide input range, adapting to both AC 110V and AC 220V input voltages.

[0026] After the integrated AC / DC converter (DC12V / 6A), the DC output voltage passes through an output filter circuit, improving the output power quality and enabling better response to load changes. The filtered output provides a stable, high-quality voltage to the equipment. The remaining low-power components draw power from the DC12V / 6A output, using independent isolated DC / DC converters to achieve the voltage output.

[0027] Specifically, the housing 1 is a fully enclosed aluminum alloy structure with natural cooling to enhance the heat transfer capability of the power supply. The maximum external dimensions of the housing 1 (excluding the panel) are width × height × depth ≤ 400mm × 190mm × 35mm. It is made of aluminum alloy to reduce the weight of the power supply.

[0028] Specifically, one side of the housing 1 is provided with an input interface 5 and an output interface 5. According to the electrical interface 5 requirements in the DC power supply outsourcing agreement, for ease of use and maintenance, the input and output interfaces mainly adopt the J30J series from AVIC Optoelectronic Technology Co., Ltd., a company specializing in power supplies. The bayonet-type quick-connect system is easy to operate, provides a reliable connection, and is vibration-resistant and shock-resistant. The highly reliable hyperboloid spring-loaded connector ensures smooth insertion and removal with low contact resistance. The plug and socket termination method is soldering, suitable for power transmission and signal connection. The product is suitable for various military and civilian environments, and features moisture resistance, salt spray resistance, mildew resistance, rain resistance, and dust resistance.

[0029] Specifically, the input component 2 includes an input circuit, which includes a varistor RV1, a first resistor R1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a bidirectional diode TVS1, a first common-mode inductor L1, and a second common-mode inductor L2. The input side of the first common-mode inductor L1 is connected in parallel with the varistor RV1. The first resistor R1 and the first capacitor C1 are connected in parallel with the varistor RV1. The two ends of the input side of the first common-mode inductor L1 are grounded through the second capacitor C2 and the third capacitor C3, respectively. The output side of the first common-mode inductor L1 is connected to the input side of the second common-mode inductor L2 through the fourth capacitor C4. The output side of the second common-mode inductor L2 is connected in parallel with the bidirectional diode TVS1. The fifth capacitor C5 is connected in parallel with the bidirectional diode TVS1. The two ends of the output side of the second common-mode inductor L2 are grounded through the sixth capacitor C6 and the seventh capacitor C7, respectively.

[0030] Specifically, the energy storage output component includes an output filter circuit, which comprises a first diode VD1, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, a fifteenth capacitor C15, a sixteenth capacitor C16, a seventeenth capacitor C17, a third common-mode inductor L3, and a fourth common-mode inductor L4. The input side of the third common-mode inductor L3 is connected to the output terminal of the AC / DC conversion component 3 or the DC / DC conversion component 5, and the input side of the third common-mode inductor L3 is connected to the first diode VD1. D1 is connected in parallel. The eighth capacitor C8 is connected in parallel with the first diode VD1. The two ends of the input side of the third common-mode inductor L3 are grounded through the ninth capacitor C9 and the tenth capacitor C10, respectively. The eighth capacitor C8 is connected in parallel with the input side of the third common-mode inductor L3. The output side of the third common-mode inductor L3 is connected to the input side of the fourth common-mode inductor L4 through the twelfth capacitor C12 and the thirteenth capacitor C13. The output side of the fourth common-mode inductor L4 is connected in parallel with the fourteenth capacitor C14 and the sixteenth capacitor C16, respectively. The two ends of the output side of the fourth common-mode inductor L4 are grounded through the fifteenth capacitor C15 and the seventeenth capacitor C17, respectively.

[0031] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A multi-output power supply for a counter-UAV system, characterized by: The device includes a housing, which contains an input component, several AC / DC conversion components, several DC / DC conversion components, and an energy storage output component. The input component is electrically connected to each AC / DC conversion component, and one AC / DC conversion component is electrically connected to each DC / DC conversion component. The output terminals of both the AC / DC conversion component and the DC / DC conversion component are electrically connected to the energy storage output component. Both the AC / DC conversion component and the DC / DC conversion component are electrically connected to an MCU, and the MCU is wirelessly connected to an external communication terminal through a communication module.

2. The multi-output power supply for counter-UAS systems of claim 1, wherein: The housing is a sealed structure made entirely of aluminum alloy.

3. The multi-output power supply for counter-UAS systems of claim 1, wherein: The housing has an input interface and an output interface on one side.

4. The multi-output power supply for an anti-drone system according to claim 1, characterized in that: The input component includes an input circuit, which includes a varistor, a first resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a bidirectional diode, a first common-mode inductor, and a second common-mode inductor. The input side of the first common-mode inductor is connected in parallel with the varistor. The first resistor and the first capacitor are also connected in parallel with the varistor. The two ends of the input side of the first common-mode inductor are grounded through the second capacitor and the third capacitor, respectively. The output side of the first common-mode inductor is connected to the input side of the second common-mode inductor through the fourth capacitor. The output side of the second common-mode inductor is connected in parallel with the bidirectional diode. The fifth capacitor is also connected in parallel with the bidirectional diode. The two ends of the output side of the second common-mode inductor are grounded through the sixth capacitor and the seventh capacitor, respectively.

5. The multiple output power supply for a counter-UAV system of claim 1, wherein: The energy storage output component includes an output filter circuit, which comprises a first diode, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, a third common-mode inductor, and a fourth common-mode inductor. The input side of the third common-mode inductor is connected to the output terminal of the AC / DC converter or the DC / DC converter. The input side of the third common-mode inductor is connected in parallel with the first diode. The eighth capacitor is connected in parallel with the first diode. The two ends of the input side of the third common-mode inductor are grounded through the ninth and tenth capacitors, respectively. The eighth capacitor is connected in parallel with the input side of the third common-mode inductor. The output side of the third common-mode inductor is connected to the input side of the fourth common-mode inductor through the twelfth and thirteenth capacitors. The output side of the fourth common-mode inductor is connected in parallel with the fourteenth and sixteenth capacitors, respectively. The two ends of the output side of the fourth common-mode inductor are grounded through the fifteenth and seventeenth capacitors, respectively.

Images