Universal programmable power supply rectification circuit for outdoor equipment

Abstract

The utility model discloses a general program control power supply rectification circuit used for outdoor equipment. The general program control power supply rectification circuit comprises a power supply rectification circuit, a surge protection circuit, a power supply conversion circuit, a CPU processing circuit, a GPIO interface circuit and an external communication interface circuit. The output end of the power rectification circuit is connected with the input end of the surge protection circuit. The output end of the surge protection circuit is connected with the input end of the power conversion circuit. The output end of the CPU processing circuit is respectively connected with the input end of the GPIO interface circuit, the input end of the external communication interface circuit and the input end of the power conversion circuit; the power supply conversion circuit comprises a plurality of DC-DC voltage conversion circuits, the CPU processing circuit adjusts the output voltage of the DC-DC voltage conversion circuits according to the voltage required by the outdoor equipment, the DC-DC voltage conversion circuits are connected with a plurality of power supply output interfaces, and the outdoor equipment is connected with the power supply output interfaces. According to the utility model, long-term stable power supply for various types of outdoor equipment is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply circuit technical field especially relates to a general program control power supply rectifier circuit for outdoor equipment. BACKGROUND

[0002] Program control power supply rectifier circuit is a kind of circuit that can convert alternating current (AC) into direct current (DC), and the circuit can adjust the characteristics of output voltage and current by program or control system.Currently in the field of smart city, intelligent transportation, security monitoring, industrial vision, artificial intelligence equipment is more and more widely used, and multi-sensor fusion product demand is increasingly prosperous.But for this kind of installation in outdoor, power environment is complex, and the maintenance of part scene is inconvenient, each family needs to design special power supply rectifier circuit for self-developed product, in addition, there is no general program control power supply rectifier circuit in prior art to meet the long-term power supply demand of different customers integrating various sensor devices. UTILITY MODEL CONTENT

[0003] In view of the deficiencies in the prior art, the utility model aims at providing a general program control power supply rectifier circuit for outdoor equipment, for realizing long-term stable power supply for various types of outdoor equipment.

[0004] To achieve the above object, the utility model provides the following technical scheme: a general program control power supply rectifier circuit for outdoor equipment, including power supply rectifier circuit, surge protection circuit, power conversion circuit, CPU processing circuit, GPIO interface circuit and external communication interface circuit;

[0005] The output end of the power supply rectifier circuit is connected with the input end of the surge protection circuit, and the output end of the surge protection circuit is connected with the input end of the power conversion circuit;

[0006] The output end of the CPU processing circuit is connected with the input end of the GPIO interface circuit, the input end of the external communication interface circuit and the input end of the power conversion circuit respectively;

[0007] The power conversion circuit includes a plurality of DC-DC voltage conversion circuits, and the CPU processing circuit adjusts the output voltage of the DC-DC voltage conversion circuit according to the required voltage of the outdoor equipment, and the DC-DC voltage conversion circuit is connected with a plurality of power output interfaces, and the outdoor equipment is connected with each power output interface.

[0008] Further, the DC-DC voltage conversion circuit includes a voltage converter chip, and the model of the voltage converter chip is TPS55289RYQ.

[0009] Further, the power supply rectifier circuit includes bridge rectifier circuit and first filter circuit;

[0010] The input end of the bridge rectifier circuit is connected with a direct current input power supply or an alternating current input power supply, and the output end of the bridge rectifier circuit is connected with the input end of the first filter circuit.

[0011] Further, the surge protection circuit comprises a surge protection circuit and a second filter circuit, the input end of the surge protection circuit is connected with the output end of the first filter circuit, and the output end of the surge protection circuit is connected with the input end of the second filter circuit.

[0012] Further, the external communication interface circuit comprises a WIFI interface, a Uart interface and an IIC interface.

[0013] Further, the surge protection circuit and the CPU processing circuit further comprise a CPU power supply conversion circuit, the CPU power supply conversion circuit comprises a first DC-DC step-down circuit and a second DC-DC step-down circuit, the input end of the first DC-DC step-down circuit is connected with the output end of the surge protection circuit, and the output end of the first DC-DC step-down circuit is connected with the input end of the second DC-DC step-down circuit.

[0014] Further, the CPU processing circuit comprises a CPU processor, a WIFI interface, a GPIO interface, a UART interface and an RTC interface, and the output end of the CPU processor is connected with the WIFI interface, the GPIO interface, the UART interface and the RTC interface.

[0015] Further, the GPIO interface circuit comprises a plurality of GPIO interfaces.

[0016] The utility model discloses a beneficial effect:

[0017] The utility model discloses a beneficial effect: Accompanying drawing specific description

[0018] Figure 1 It is the connection structure schematic drawing of general program control power supply rectifier circuit in the utility model,

[0019] Figure 2 It is the circuit principle drawing of DC-DC voltage conversion circuit in the utility model.

[0020] The figure mark: 1, power supply rectifier circuit;11, bridge rectifier circuit;12, first filter circuit;2, surge protection circuit;21, anti-surge circuit;22, second filter circuit;3, power supply conversion circuit;31, DC-DC voltage conversion circuit;4, CPU processing circuit;5, GPIO interface circuit;6, external communication interface circuit. DETAILED DESCRIPTION

[0021] The utility model is further explained in detail below in combination with the drawings and examples. Same parts are indicated with same figure marks in the drawings. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0022] Example 1, refer to Figure 1 , this example provides a general program-controlled power supply rectifier circuit for outdoor equipment, which can realize long-term stable power supply for various types of outdoor equipment, including power supply rectifier circuit 1, surge protection circuit 2, power supply conversion circuit 3, CPU processing circuit 4, GPIO interface circuit 5 and external communication interface circuit 6.

[0023] The output end of the power supply rectifier circuit 1 is connected to the input end of the surge protection circuit 2, and the output end of the surge protection circuit 2 is connected to the input end of the power supply conversion circuit 3.

[0024] The output end of the CPU processing circuit 4 is respectively connected to the input end of the GPIO interface circuit 5, the input end of the external communication interface circuit 6 and the input end of the power supply conversion circuit 3.

[0025] The power supply conversion circuit 3 includes a plurality of DC-DC voltage conversion circuits 31, and the CPU processing circuit 4 adjusts the output voltage of the DC-DC voltage conversion circuit 31 according to the required voltage of the outdoor equipment, and the DC-DC voltage conversion circuit 31 is connected with a plurality of power supply output interfaces, and the outdoor equipment is connected with each power supply output interface.

[0026] Preferably, as shown in Figure 2 , the DC-DC voltage conversion circuit 31 includes a voltage converter chip, and the model of the voltage converter chip is TPS55289RYQ.

[0027] Specifically, in this embodiment, the voltage converter chip TPS55289RYQ not only has the functions of providing output overvoltage protection, average inductor current limitation, cycle-by-cycle peak current limitation and output short circuit protection, but also can adjust the output voltage of the DC-DC voltage conversion circuit 31 according to the control of the CPU processing circuit 4 to meet the long-term power supply demand of various types of outdoor equipment.

[0028] The working principle of the embodiment 1 is as follows:

[0029] The embodiment is characterized in that a plurality of DC-DC voltage conversion circuits 31 are arranged inside the power conversion circuit 3, and the output voltage of the DC-DC voltage conversion circuit 31 is adjusted by the CPU processing circuit 4 according to the required voltage of the outdoor equipment, so that the voltage output to the outdoor equipment by each power output interface is adapted to the outdoor equipment, thereby realizing long-term stable power supply for each type of outdoor equipment and improving the versatility of power supply for each outdoor equipment.

[0030] Preferably, the power rectifier circuit 1 comprises a bridge rectifier circuit 11 and a first filter circuit 12.

[0031] The input end of the bridge rectifier circuit 11 is connected to a direct-current input power supply or an alternating-current input power supply, and the output end of the bridge rectifier circuit 11 is connected to the input end of the first filter circuit 12.

[0032] Specifically, in the embodiment, the bridge rectifier circuit 11 receives direct-current or alternating-current input of an external power supply, then performs bridge rectification on the input voltage, and then utilizes the first filter circuit 12 to filter the rectified power output, and finally outputs the filtered power to the surge protection circuit 2. The bridge rectifier circuit 11 supports external 5-30V wide voltage direct-current input or 24V alternating-current input, and the user does not need to pay attention to the positive and negative poles of the power supply, and can complete the rectification processing of the positive and negative directions of the 24V alternating-current or direct-current power supply.

[0033] Preferably, the surge protection circuit 2 comprises a surge protection circuit 21 and a second filter circuit 22, the input end of the surge protection circuit 21 is connected to the output end of the first filter circuit 12, and the output end of the surge protection circuit 21 is connected to the input end of the second filter circuit 22.

[0034] Specifically, in the embodiment, the surge protection circuit 21 performs surge protection on the power input by the first filter circuit 12, and then utilizes the second filter circuit 22 to perform filtering and reverse connection processing again, etc., to convert into safe and clean power, and supply the power conversion circuit 3.

[0035] Preferably, the surge protection circuit 2 and the CPU processing circuit 4 further comprise a CPU power conversion circuit, the CPU power conversion circuit comprises a first DC-DC step-down circuit and a second DC-DC step-down circuit, the input end of the first DC-DC step-down circuit is connected to the output end of the surge protection circuit 2, and the output end of the first DC-DC step-down circuit is connected to the input end of the second DC-DC step-down circuit.

[0036] Specifically, in the embodiment, the CPU processing circuit 4 needs 3.3V direct current power supply, the power supply voltage output by the surge protection circuit 2 is about 12V, which is higher than the power supply voltage of the CPU processing circuit 4, so two times of voltage reduction are performed through the first DC-DC voltage reduction circuit and the second DC-DC voltage reduction circuit, wherein the first DC-DC voltage reduction circuit converts the 12V voltage into 5V voltage, and the second DC-DC voltage reduction circuit converts the voltage into 3.3V voltage, so that the power supply requirement of the CPU processing circuit 4 is met through two times of voltage reduction.

[0037] Preferably, the external communication interface circuit 6 includes a WIFI interface, a Uart interface and an IIC interface.

[0038] Specifically, in the embodiment, by setting multiple types of external communication interfaces, the program control requirement in various scenes can be met.

[0039] Preferably, the CPU processing circuit 4 includes a CPU processor, a WIFI interface, a GPIO interface, a UART interface and an RTC interface, and the output end of the CPU processor is connected with the WIFI interface, the GPIO interface, the UART interface and the RTC interface.

[0040] Specifically, in the embodiment, the WIFI device can be connected through the WIFI interface, and external control instructions can be received to adjust the output voltage of the DC-DC voltage conversion circuit 31, or external control instructions can be received through other wired communication modes.

[0041] Preferably, the GPIO interface circuit 5 includes a plurality of GPIO interfaces.

[0042] Specifically, in the embodiment, the GPIO interface is externally input through optical coupling isolation, and the internal circuit is protected.

[0043] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solution belonging to the idea of the present application is within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A universal programmed power supply rectifier circuit for outdoor equipment, characterized by, The application relates to an outdoor equipment power supply device. The outdoor equipment power supply device comprises a power supply rectifier circuit (1), a surge protection circuit (2), a power supply conversion circuit (3), a CPU processing circuit (4), a GPIO interface circuit (5) and an external communication interface circuit (6). The output end of the power supply rectifier circuit (1) is connected with the input end of the surge protection circuit (2), and the output end of the surge protection circuit (2) is connected with the input end of the power supply conversion circuit (3). The output end of the CPU processing circuit (4) is connected with the input end of the GPIO interface circuit (5), the input end of the external communication interface circuit (6) and the input end of the power supply conversion circuit (3) respectively. The power supply conversion circuit (3) comprises a plurality of DC-DC voltage conversion circuits (31), the output voltage of the DC-DC voltage conversion circuit (31) is adjusted by the CPU processing circuit (4) according to the required voltage of the outdoor equipment, and the DC-DC voltage conversion circuit (31) is connected with a plurality of power supply output interfaces, and the outdoor equipment is connected with each power supply output interface.

2. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 1, characterized in that: The DC-DC voltage conversion circuit (31) comprises a voltage converter chip, and the model of the voltage converter chip is TPS55289RYQ.

3. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 1, characterized in that: The power supply rectifier circuit (1) comprises a bridge rectifier circuit (11) and a first filter circuit (12). The input end of the bridge rectifier circuit (11) is connected with a direct-current input power supply or an alternating-current input power supply, and the output end of the bridge rectifier circuit (11) is connected with the input end of the first filter circuit (12).

4. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 3, characterized in that: The surge protection circuit (2) comprises an anti-surge circuit (21) and a second filter circuit (22), the input end of the anti-surge circuit (21) is connected with the output end of the first filter circuit (12), and the output end of the anti-surge circuit (21) is connected with the input end of the second filter circuit (22).

5. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 1, characterized in that: The external communication interface circuit (6) comprises a WIFI interface, a Uart interface and an IIC interface.

6. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 1, characterized in that: The surge protection circuit (2) and the CPU processing circuit (4) further comprise a CPU power supply conversion circuit, the CPU power supply conversion circuit comprises a first DC-DC voltage reduction circuit and a second DC-DC voltage reduction circuit, the input end of the first DC-DC voltage reduction circuit is connected with the output end of the surge protection circuit (2), and the output end of the first DC-DC voltage reduction circuit is connected with the input end of the second DC-DC voltage reduction circuit.

7. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 1, characterized in that: The CPU processing circuit (4) comprises a CPU processor, a WIFI interface, a GPIO interface, a UART interface and an RTC interface, and the output end of the CPU processor is connected with the WIFI interface, the GPIO interface, the UART interface and the RTC interface.

8. The universal programmed power supply rectifier circuit for outdoor equipment according to claim 1, characterized in that: The GPIO interface circuit (5) comprises a plurality of GPIO interfaces.

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