CN220874263U - Intelligent multipurpose charger with wide voltage output - Google Patents
Intelligent multipurpose charger with wide voltage output Download PDFInfo
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- CN220874263U CN220874263U CN202322491095.9U CN202322491095U CN220874263U CN 220874263 U CN220874263 U CN 220874263U CN 202322491095 U CN202322491095 U CN 202322491095U CN 220874263 U CN220874263 U CN 220874263U
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- 238000000034 method Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 3
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- 238000013021 overheating Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application provides an intelligent multipurpose charger with wide voltage output, which comprises an MCU intelligent control module and an alternating current input circuit, wherein the alternating current input circuit is connected with an EMC filtering high-voltage rectifying circuit, the EMC filtering high-voltage rectifying circuit is connected with a PFC boost filtering circuit, a step-down isolation transformer is connected with a synchronous rectification filtering circuit, the synchronous rectification filtering circuit is connected with an output relay control circuit, the MCU intelligent control module is connected with the synchronous rectification filtering circuit and the output relay control circuit, the MCU intelligent control module is also connected with an external battery, an LED display circuit, a temperature detection circuit and a constant-current constant-voltage control circuit, the output relay control circuit is connected with the external battery, the constant-current constant-voltage control circuit is connected with an isolation feedback circuit, the isolation feedback circuit is connected with a controller, and the controller is connected with the PFC boost filtering circuit. The application can improve the power factor of the charger, thereby improving the effective utilization of electric energy. The application can prevent the charger and the battery from being damaged by overhigh temperature.
Description
Technical Field
The application relates to the field of chargers, in particular to an intelligent multipurpose charger with wide voltage output.
Background
A solar charger is a device that converts solar energy into electric energy using a solar photovoltaic panel and then is used to charge a battery or power supply equipment. They are commonly used for outdoor activities, camping, hiking, traveling or anywhere there is no electrical outlet.
However, the efficiency of solar chargers in general is generally low, especially when converting alternating current into direct current, there is an energy loss; further, conventional chargers lack necessary safety protection functions, such as overheat protection; this may lead to a safety risk in charging.
Disclosure of utility model
The application aims to provide an intelligent charger with higher charging efficiency and safer.
In order to achieve the above object, the present application provides the following technical solutions:
The utility model provides an intelligent multipurpose charger with wide voltage output, includes MCU intelligent control module and AC input circuit, AC input circuit is connected with EMC filtering high voltage rectifier circuit, EMC filtering high voltage rectifier circuit is connected with PFC boost filter circuit, PFC boost filter circuit is connected with synchronous rectification filter circuit, synchronous rectification filter circuit is connected with output relay control circuit, MCU intelligent control module is connected with synchronous rectification filter circuit and output relay control circuit, MCU intelligent control module still is connected with external battery, LED display circuit, temperature detection circuit and constant current constant voltage control circuit, output relay control circuit is connected with external battery, constant current constant voltage control circuit is connected with isolation feedback circuit, isolation feedback circuit is connected with the controller, the controller is connected with boost PFC filter circuit.
The beneficial effects of the application are as follows:
(1) The PFC boost filter circuit can improve the power factor of the charger, reduce harmonic pollution to a power grid, and further improve the effective utilization of electric energy. This helps to reduce the waste of electrical energy and the cost of energy.
(2) The application is provided with the EMC filtering high-voltage rectifying circuit, which is beneficial to reducing electromagnetic interference and ensuring that the charger can not interfere surrounding electronic equipment during operation.
(3) The constant-current constant-voltage control circuit can ensure that current and voltage are kept in a safe range in the charging process, avoid overcharge and overdischarge, prolong the service life of a battery and improve the charging efficiency.
(4) The MCU intelligent control module can monitor the internal temperature of the charger through the temperature detection circuit, and if the temperature rises, the charger can intelligently reduce the output current so as to prevent overheating. This helps to improve safety and prevents damage to the charger and battery.
Drawings
FIG. 1 is a block schematic diagram of an intelligent charger according to an embodiment of the present application;
FIG. 2 is a partial circuit diagram of an intelligent charger according to an embodiment of the present application;
FIG. 3 is a circuit diagram of an intelligent charger according to an embodiment of the present application;
Reference numerals illustrate:
1. An MCU intelligent control module; 2. an alternating current input circuit; 3. EMC filtering high-voltage rectifying circuit; 4. a PFC boost filter circuit; 5. a synchronous rectification filter circuit; 6. an output relay control circuit; 7. externally connecting a battery; 8. an LED display circuit; 9. a temperature detection circuit; 10. a constant current and constant voltage control circuit; 11. isolating the feedback circuit; 12. a controller;
Detailed Description
The terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, as will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an intelligent multipurpose charger with wide voltage output comprises an MCU intelligent control module 1 and an ac input circuit 2, wherein the ac input circuit 2 is connected with an EMC filter high-voltage rectifying circuit 3, the EMC filter high-voltage rectifying circuit 3 is connected with a PFC boost-up filter circuit 4, the PFC boost-up filter circuit 4 is connected with a step-down isolation transformer 13, the step-down isolation transformer 13 is connected with a synchronous rectification filter circuit 5, the synchronous rectification filter circuit 5 is connected with an output relay control circuit 6, the MCU intelligent control module 1 is connected with the synchronous rectification filter circuit 5 and the output relay control circuit 6, the MCU intelligent control module 1 is also connected with an external battery 7, an LED display circuit 8, a temperature detection circuit 9 and a constant-current constant-voltage control circuit 10, the output relay control circuit 6 is connected with the external battery 7, the constant-current constant-voltage control circuit 10 is connected with an isolation feedback circuit 11, the isolation feedback circuit 11 is connected with a controller 12, and the controller 12 is connected with the PFC boost-up filter circuit 4.
(1) The PFC boost filter circuit 4 can improve the power factor of the charger, reduce harmonic pollution to a power grid, and further improve the effective utilization of electric energy. This helps to reduce the waste of electrical energy and the cost of energy.
(2) The application is provided with the EMC filter high-voltage rectification circuit 3, and the EMC filter high-voltage rectification circuit 3 is beneficial to reducing electromagnetic interference and ensuring that the charger cannot interfere with surrounding electronic equipment during operation.
(3) The constant-current and constant-voltage control circuit 10 can ensure that the current and the voltage are kept within a safe range in the charging process, avoid overcharge and overdischarge, prolong the service life of a battery and improve the charging efficiency.
(4) The MCU intelligent control module 1 can monitor the internal temperature of the charger through the temperature detection circuit 9, and if the temperature rises, the charger can intelligently reduce the output current so as to prevent overheating. This helps to improve safety and prevents damage to the charger and battery.
According to the application, by using the APFC, harmonic waves and current peaks on the power grid can be reduced, so that the power utilization rate of the power grid is improved.
The alternating current input circuit 2 adopts a main stream LLC puff structure: the LLC topology is a circuit topology for ac to dc power supplies that can provide high efficiency and low electromagnetic interference. In this scheme, the LLC topology is carefully designed to ensure high efficiency of power conversion.
The control circuit of the application adopts MCU to process: using a microcontroller 12 unit (MCU) to control the charging process, precise charging control can be achieved to accommodate different types of rechargeable batteries.
This can be used in many types of batteries, including lithium batteries, AGM batteries, and STD batteries. This flexibility makes it suitable for various application scenarios.
The MCU of the present application monitors the temperature inside the charger by using a temperature sensor (NTC). The MCU intelligently reduces the output current when the temperature of the highest temperature point in the machine is detected by the NTC detection circuit; when the temperature in the machine reaches 80 ℃, the current is reduced by 10 percent, when the temperature reaches 85 ℃, the current is reduced by 20 percent, when the temperature reaches 90 ℃, the current is reduced by 30 percent, when the temperature reaches 95 ℃, the current is reduced by 70 percent, when the temperature reaches 100 ℃, the over-temperature protection is realized, and the output is turned off. The charger may automatically reduce the output current when the temperature increases to prevent overheating and completely shut off the output current when the temperature reaches a certain threshold, thereby providing over-temperature protection.
The application also has the capability of detecting incorrect operation and bad battery, and can warn users or take necessary measures to ensure the safety and effectiveness of charging.
The controller 12 of the present embodiment is a digitally configured multimode pfc+llc integrated controller 12; the digitally configured multi-mode pfc+llc integrated controller 12 is a power management chip commonly used in power supplies, chargers, LED drivers, and other high performance power applications. Such a controller 12 enables integrated control of various Power Factor Correction (PFC) modes and LLC topologies through Digital Signal Processing (DSP) or other digital control techniques.
In describing embodiments of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly coupled, indirectly coupled through an intermediary, in communication between two elements, or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.
The embodiments of the application may be implemented or realized in any number of ways, including as a matter of course, such that the apparatus or elements recited in the claims are not necessarily oriented or configured to operate in any particular manner. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more unless specifically stated otherwise.
The terms first, second, third, fourth and the like in the description and in the claims and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "may include" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present application, and are not limited thereto. Although embodiments of the present application have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments may be modified or some or all of the technical features may be replaced with equivalents. Such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (1)
1. An intelligent multipurpose charger with wide voltage output, characterized in that: including MCU intelligent control module and alternating current input circuit, alternating current input circuit is connected with EMC filtering high voltage rectifier circuit, EMC filtering high voltage rectifier circuit is connected with PFC boost filter circuit, PFC boost filter circuit is connected with step-down isolation transformer, step-down isolation transformer is connected with synchronous rectification filter circuit, synchronous rectification filter circuit is connected with output relay control circuit, MCU intelligent control module is connected with synchronous rectification filter circuit and output relay control circuit, MCU intelligent control module still is connected with external battery, LED display circuit, temperature detection circuit and constant current constant voltage control circuit, output relay control circuit is connected with external battery, constant current constant voltage control circuit is connected with isolation feedback circuit, isolation feedback circuit is connected with the controller, the controller is connected with PFC boost filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322491095.9U CN220874263U (en) | 2023-09-14 | 2023-09-14 | Intelligent multipurpose charger with wide voltage output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322491095.9U CN220874263U (en) | 2023-09-14 | 2023-09-14 | Intelligent multipurpose charger with wide voltage output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220874263U true CN220874263U (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322491095.9U Active CN220874263U (en) | 2023-09-14 | 2023-09-14 | Intelligent multipurpose charger with wide voltage output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220874263U (en) |
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2023
- 2023-09-14 CN CN202322491095.9U patent/CN220874263U/en active Active
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