Double-transformer power dynamic distribution circuit and charging terminal with same
Through the dual-transformer power dynamic distribution circuit and the combination of control chip and transformer circuit, the problems of large charger size, high cost and rapid heating are solved, intelligent power distribution and equipment adaptability are realized, and the weight and cost of the charging terminal are reduced.
Patent Information
- Application Number
- CN202422495063.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-14
AI Technical Summary
Existing chargers are large in size, high in cost, generate heat quickly, have low charging power, and are not easy to carry, making it difficult to meet the different charging needs of multiple devices.
A dual-transformer power dynamic distribution circuit is adopted. Through the combination of the first and second control chips with the voltage conversion circuit, interface module and current sharing control circuit, intelligent dynamic adjustment of charging power is achieved, reducing the use of BUCK circuits.
It reduces the size and cost of the charging terminal, avoids overheating, can adapt to the charging needs of different devices, and provides intelligent power distribution.
Smart Images
Figure CN223379057U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of circuit technology, and in particular to a dual-transformer power dynamic distribution circuit and a charging terminal having the same. Background Art
[0002] With technological advancements and improvements in living standards, people are increasingly using chargers for a wide range of products at home, including mobile phones, laptops, tablets, shavers, hair dryers, and computers. The charging power requirements for these products are also increasing, from 20W and 45W to 65W, 100W, 140W, and even 240W. This increase in charging power also results in larger chargers, making them increasingly difficult to carry and expensive.
[0003] Currently, the multi-port high-power chargers on the market are expensive and generate heat quickly. After a period of use, the charging power will decrease, the charging speed will be slow, the user experience will not be good, and it is not convenient to carry when traveling. Utility Model Content
[0004] In response to the above-mentioned deficiencies in the prior art, the present application provides a dual-transformer power dynamic distribution circuit and a charging terminal having the same, to solve at least one of the above-mentioned technical problems. The specific solutions are as follows:
[0005] A dual-transformer power dynamic distribution circuit comprises: a first control chip, a second control chip, a first voltage conversion circuit, a second voltage conversion circuit, a first interface module, a second interface module, a power connection module and a current sharing control circuit.
[0006] The current sharing control circuit is connected to the first control chip, the second control chip, the first voltage conversion circuit, the second voltage conversion circuit, the first interface module, and the second interface module. The first control chip is connected to the second control chip; the first interface module is connected to the first control chip, and the second interface module is connected to the second control chip; the first interface module and the second interface module are used to connect to external devices and power the external devices; the power connection module is connected to the external power supply, the first voltage conversion circuit, and the second voltage conversion circuit.
[0007] In some specific embodiments, the operating powers of the first transformer circuit and the second transformer circuit may be different or the same, and the operating powers of the first transformer circuit and the second transformer circuit may be adjusted according to actual usage.
[0008] In some specific embodiments, the first control chip and the second control chip include an MCU (Microcontroller Unit).
[0009] In some specific embodiments, the current sharing control circuit includes a first switch, a second switch, a third switch, and a fourth switch.
[0010] The first control chip is connected to the first switch and the second switch respectively; the first switch and the second switch are respectively connected to the first interface module; the second control chip is connected to the third switch and the fourth switch respectively; the third switch and the fourth switch are respectively connected to the second interface module; and the first switch is connected to the third switch. The first switch and the second switch are connected to each other, and the third switch and the fourth switch are connected to each other.
[0011] In some specific embodiments, the first control chip includes a first voltage detection module for detecting the voltage of an external device connected to the first interface module and / or the second interface module.
[0012] The second control chip includes a second voltage detection module for detecting the voltage of an external device connected to the first interface module and / or the second interface module.
[0013] In some specific embodiments, the first control chip and / or the second control chip also includes a first conduction module, which is respectively connected to the first switch, the second switch and the third switch, and is used to conduct the first switch, the second switch, the third switch and the first transformer circuit and / or the second transformer circuit.
[0014] In some specific embodiments, the first control chip and / or the second control chip also includes a second conduction module, which is respectively connected to the first switch, the third switch and the fourth switch, and is used to conduct the first switch, the third switch, the fourth switch and the first transformer circuit and / or the second transformer circuit.
[0015] In some specific embodiments, the first control chip further includes a third conduction module, which is connected to the second switch and is configured to conduct electricity between the second switch and the first voltage conversion circuit.
[0016] In a specific embodiment, the second control chip further includes a fourth conducting module, which is connected to the fourth switch and is configured to conduct electricity between the fourth switch and the second voltage conversion circuit.
[0017] In some specific embodiments, the first conduction module, the second conduction module, the third conduction module and the fourth conduction module may correspond to preset power values, so that the conduction module will turn on the corresponding switch and transformer circuit when the first voltage detection module or the second voltage detection module detects that the power of the connected device reaches the corresponding preset power value.
[0018] In a specific embodiment, the first conduction module corresponds to a first preset power value, the second conduction module corresponds to a second preset power value, the third conduction module corresponds to a third preset power value, and the fourth conduction module corresponds to a fourth preset power value. In actual applications, the preset power values can be manually set according to actual needs, and the preset power values can be the same or different.
[0019] In practical applications, when multiple conduction modules exist simultaneously in the same dynamic allocation circuit, the preset power value corresponding to each conduction module may be different. For example, in a specific embodiment, multiple conduction modules may exist simultaneously in the same dynamic allocation circuit, and each conduction module may correspond to a different preset power value, such as a first preset power value of 30W, a second preset power value of 65W, a third preset power value of 45W, and a fourth preset power value of 20W. When the first control chip or the second control chip detects the connection of devices with different power, the conduction module can intelligently turn on different switches and voltage conversion circuits, allowing the voltage conversion circuit to intelligently adjust the voltage, effectively meeting the charging power requirements of different electronic devices and preventing overload and overheating of the charging terminal.
[0020] In a specific embodiment, the first interface module and the second interface module include a TYPE-C interface, and / or a Lightning interface, and / or a USB interface. In practical applications, by setting different interfaces, the distribution circuit can be made compatible with different fast charging protocols, and the output power and voltage of the power supply can be adjusted accordingly according to the fast charging protocol to achieve the best charging effect.
[0021] In practical applications, the first interface module and the second interface module may include one or more interfaces, and this application does not limit the number of interfaces in the interface modules.
[0022] In actual applications, by setting up multiple different conduction modules in the first control chip and / or the second control chip, when the connected external device reaches a certain preset power value, the switches in different voltage conversion circuits and different MOS tube modules are turned on, thereby realizing intelligent dynamic adjustment of the charging power of the external device, making the overall charging process more intelligent.
[0023] In a second aspect, a charging terminal is proposed, which has a dual-transformer power dynamic distribution circuit according to any one of the aforementioned technical solutions.
[0024] Beneficial Effects: This application provides a dual-transformer power dynamic distribution circuit, comprising a first transformer circuit, a second transformer circuit, a first control chip, and a second control chip. By adding a control chip and dual transformers to achieve dynamic power distribution, the number of buck circuits required in the circuit structure of a multi-port charging terminal can be reduced, further reducing the design cost, size, and weight of the multi-port charging terminal incorporating this circuit. Furthermore, the use of multiple transformer circuits can evenly distribute heat, reducing the risk of overheating of the charging terminal casing. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 This is a schematic diagram of the module connection structure of this application;
[0027] Figure 2 This is a partial detailed schematic diagram of the module connection structure of this application;
[0028] Figure 3 Another partial detailed schematic diagram of the module connection structure of the present application;
[0029] Figure 4 Schematic diagram of the current sharing control circuit in this application;
[0030] Figure 5 This is a circuit diagram of the first control chip in this application;
[0031] Figure 6 This is a circuit diagram of the first voltage conversion circuit and the power connection module in this application;
[0032] Figure 7 This is a circuit diagram of the second control chip in this application;
[0033] Figure 8 Schematic diagram of the second voltage conversion circuit in this application.
[0034] The figure numbers are as follows: 1-first control chip; 11-first voltage detection module; 12-first voltage conversion circuit; 13-first interface module; 2-second control chip; 21-second voltage detection module; 22-second voltage conversion circuit; 23-second interface module; 3-power connection module; 4-current sharing control circuit; 41-first switch; 42-second switch; 43-third switch; 44-fourth switch; 51-first conduction module; 52-second conduction module; 53-third conduction module; 54-fourth conduction module. DETAILED DESCRIPTION
[0035] The following will clearly and completely describe the concept, specific structure and technical effects of this application in combination with the embodiments and drawings to fully understand the purpose, characteristics and effects of this application.
[0036] Hereinafter, various embodiments of the present application will be described more fully. The present application may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present application to the specific embodiments disclosed herein, but rather that the present application should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present application.
[0037] Hereinafter, the terms "include" or "may include" as used in various embodiments of the present application indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present application, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing.
[0038] In various embodiments of the present application, the expression "or" or "at least one of A or / and B" includes any or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.
[0039] The expressions (such as "first", "second", etc.) used in the various embodiments of the present application may modify the various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used to distinguish one element from other elements. For example, a first user device and a second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present application, a first element may be referred to as a second element, and similarly, a second element may also be referred to as a first element.
[0040] It should be noted that, in this application, unless otherwise specified or defined, terms such as "mounted," "connected," and "fixed" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.
[0041] In this application, a person of ordinary skill in the art needs to understand that the terms indicating orientation or positional relationships herein are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.
[0042] The terms used in the various embodiments of the application are only used to describe the purpose of specific embodiments and are not intended to limit the various embodiments of the application. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise limited, all terms used here (including technical terms and scientific terms) have the same meaning as the meaning generally understood by those of ordinary skill in the art of the application. The terms (such as the terms defined in the dictionary generally used) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having idealized meaning or too formal meaning, unless clearly defined in the various embodiments of the application.
[0043] Example 1
[0044] This embodiment provides a dual-transformer power dynamic distribution circuit, the specific scheme is as follows:
[0045] A dual-transformer power dynamic distribution circuit includes: a first control chip 1, a second control chip 2, a first voltage conversion circuit 12, a second voltage conversion circuit 22, a first interface module 13, a second interface module 23, a power connection module 3 and a current sharing control circuit 4.
[0046] The current sharing control circuit 4 is connected to the first control chip 1, the second control chip 2, the first voltage conversion circuit 12, the second voltage conversion circuit 22, the first interface module 13 and the second interface module 23 respectively. The first control chip 1 is connected to the second control chip 2; the first interface module 13 is connected to the first control chip 1, and the second interface module 23 is connected to the second control chip 2; the first interface module 13 and the second interface module 23 are used to connect to external devices to power the external devices; the power connection module 3 is connected to the external power supply, the first voltage conversion circuit 12 and the second voltage conversion circuit 22 respectively. The schematic diagram of the connection of each module is shown as follows: Figure 1 As shown, the circuit structure diagram of the current sharing control circuit is as follows Figure 4 As shown, the circuit structure diagram of the first voltage conversion circuit 12 and the power connection module 3 is as shown in FIG. Figure 6 As shown, the circuit structure diagram of the second voltage conversion circuit 22 is as shown Figure 8 shown.
[0047] In some specific embodiments, the operating powers of the first transformer circuit 12 and the second transformer circuit 22 may be different or the same, and the operating powers of the first transformer circuit 12 and the second transformer circuit 22 may be adjusted according to actual usage.
[0048] In some specific embodiments, the first control chip 1 and the second control chip 2 include MCUs. The circuit structure diagram of the first control chip 1 is as follows: Figure 5 As shown, the circuit structure diagram of the second control chip 2 is as shown Figure 7 shown.
[0049] In some specific embodiments, the current sharing control circuit 4 includes a first switch 41 , a second switch 42 , a third switch 43 and a fourth switch 44 .
[0050] The first control chip 1 is connected to the first switch 41 and the second switch 42 respectively; the first switch 41 and the second switch 42 are connected to the first interface module 13 respectively; the second control chip 2 is connected to the third switch 43 and the fourth switch 44 respectively; the third switch 43 and the fourth switch 44 are connected to the second interface module 23 respectively; the first switch 41 is connected to the third switch 43. In practical applications, each switch can be a MOS transistor. The connection structure diagram of each switch is shown in FIG. Figure 2 shown.
[0051] In some specific embodiments, Figure 3As shown, the first control chip 1 includes a first voltage detection module 11 for detecting the voltage of an external device connected to the first interface module 13 and / or the second interface module 23. The second control chip 2 includes a second voltage detection module 21 for detecting the voltage of an external device connected to the first interface module 13 and / or the second interface module 23. In practical applications, by providing the first voltage detection module 11 and the second voltage detection module 21, real-time monitoring of the power status of the interface modules to which they are connected can be achieved, thereby further intelligently and dynamically allocating the power supply to each interface module.
[0052] In practical applications, such as Figure 5 and Figure 7 As shown, the first control chip 1 and the second control chip 2 can be connected to the first interface module 13 and the second interface module 23 respectively through the pins 1 and 2 thereof.
[0053] In some specific embodiments, the first control chip 1 and / or the second control chip 2 also includes a first conduction module 51, which is respectively connected to the first switch 41, the second switch 42 and the third switch 43, and is used to conduct the first switch 41, the second switch 42, the third switch 43 with the first transformer circuit 12 and / or the second transformer circuit 22.
[0054] In some specific embodiments, the first control chip 1 and / or the second control chip 2 also includes a second conduction module 52, which is respectively connected to the first switch 41, the third switch 43 and the fourth switch 44, and is used to conduct the first switch 41, the third switch 43, the fourth switch 44 with the first transformer circuit 12 and / or the second transformer circuit 22.
[0055] In some specific embodiments, the first control chip 1 further includes a third conducting module 53 . The third conducting module 53 is connected to the second switch 42 and is configured to conduct electricity between the second switch 42 and the first voltage conversion circuit 12 .
[0056] In a specific embodiment, the second control chip 2 further includes a fourth conducting module 54 . The fourth conducting module 54 is connected to the fourth switch 44 and is configured to conduct electricity between the fourth switch 44 and the second voltage conversion circuit 22 .
[0057] In some specific embodiments, the first conduction module 51, the second conduction module 52, the third conduction module 53 and the fourth conduction module 54 can correspond to preset power values, so that the conduction module will turn on the corresponding switch and transformer circuit when the first voltage detection module 11 or the second voltage detection module 21 detects that the power of the connected device reaches the corresponding preset power value, intelligently making different connected devices correspond to the power supply power that matches them.
[0058] In one specific embodiment, the first conduction module 51 corresponds to a first preset power value, the second conduction module 52 corresponds to a second preset power value, the third conduction module 53 corresponds to a third preset power value, and the fourth conduction module 54 corresponds to a fourth preset power value. In practical applications, each preset power value can be manually set according to actual needs, and the magnitudes of each preset power value can be the same or different. By providing multiple conduction modules, the switches and transformer circuits in the dynamic distribution circuit can have multiple different conduction modes, thereby achieving diverse adjustments to the power supply.
[0059] In practical applications, when multiple conduction modules exist simultaneously in the same dynamic allocation circuit, the preset power value corresponding to each conduction module may be different. For example, in a specific embodiment, multiple conduction modules may exist simultaneously in the same dynamic allocation circuit, and each conduction module may correspond to a different preset power value, such as a preset first power value of 30W, a preset second power value of 65W, a preset third power value of 45W, and a preset fourth power value of 20W. When the first control chip 1 or the second control chip 2 detects the connection of devices with different power, the conduction module can intelligently turn on different switches and voltage conversion circuits, so that the voltage conversion circuit can intelligently adjust the voltage, effectively meeting the charging power requirements of different electronic devices and preventing overload and overheating of the charging terminal.
[0060] In a specific embodiment, the first interface module 13 and the second interface module 23 include a TYPE-C interface, and / or a Lightning interface, and / or a USB interface. In practical applications, by setting different interfaces, the distribution circuit can be made compatible with different fast charging protocols, and the output power and voltage of the power supply can be adjusted accordingly according to the fast charging protocol to achieve the best charging effect.
[0061] In practical applications, the first interface module 13 and the second interface module 23 may include one or more interfaces, and the present application does not limit the number of interfaces in the interface modules.
[0062] In actual applications, by setting a variety of different conduction modules in the first control chip 1 and / or the second control chip 2, when the connected external device reaches a certain preset power value, different voltage conversion circuits and switches in different conduction modules are turned on, thereby realizing intelligent dynamic adjustment of the charging power of the external device, making the overall charging process more intelligent.
[0063] Traditional circuit configurations typically employ multiple buck circuits (step-down converters) to regulate the output voltage. However, the greater the number of buck circuits, the heavier and larger they become, making them more susceptible to overload and overheating, further reducing power delivery. By adding a control chip to dynamically allocate power, the number of buck circuits in a multi-port charging terminal can be reduced, further reducing design costs, size, and weight.
[0064] The present application provides a dual-transformer power dynamic distribution circuit, comprising a first transformer circuit, a second transformer circuit, a first control chip, and a second control chip. By adding a control chip to achieve dynamic power distribution, the number of buck circuits in the circuit structure can be reduced, further reducing the volume, weight, and cost of the circuit structure. At the same time, by using multiple transformer circuits to evenly distribute heat and using a control chip to achieve intelligent control of the operating states of different transformer circuits, voltage regulation and power distribution functions can be achieved, further reducing the problem of overheating of the charging terminal casing.
[0065] Example 2
[0066] This embodiment provides a charging terminal having any one of the dual-transformer power dynamic distribution circuits in the aforementioned technical solutions. The specific solutions are as follows:
[0067] The system includes a housing, within which the dual-transformer power dynamic distribution circuit is located. The first interface module 13 and the second interface module 23 are partially exposed on the housing surface for connection to external devices. The power connection module 3 is also partially exposed on the housing surface for connection to an external power source. In practical applications, the system also includes a power supply data cable connected to the power connection module 3 within the housing through the housing surface. One end of the power supply data cable is connected to the external power source, and the other end is connected to the power connection module 3.
[0068] A charging terminal includes any of the dual-transformer dynamic power distribution circuits described in the aforementioned technical solutions. By utilizing a first transformer circuit, a second transformer circuit, a first control chip, and a second control chip to achieve dynamic power distribution, the system can reduce the number of buck circuits in its circuit structure, effectively reducing the overall size, weight, and cost of the charging terminal. When charging multiple devices with different power requirements, the system can intelligently allocate charging power to meet the power needs of each device. Furthermore, the system provides uniform heat dissipation during use, preventing the casing from overheating.
[0069] The above is a specific description of the preferred implementation of the present application, but the invention of the present application is not limited to the described embodiments. Technical personnel familiar with the art can also make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.
Claims
1. A dual-transformer power dynamic distribution circuit, characterized in that: include: A first control chip, a second control chip, a first voltage conversion circuit, a second voltage conversion circuit, a first interface module, a second interface module, a power connection module, and a current sharing control circuit; The current sharing control circuit is respectively connected to the first control chip, the second control chip, the first voltage conversion circuit, the second voltage conversion circuit, the first interface module and the second interface module; The first control chip is connected to the second control chip; the first interface module is connected to the first control chip, and the second interface module is connected to the second control chip; the first interface module and the second interface module are used to connect to an external device to power the external device; The power connection module is connected to an external power source, the first voltage conversion circuit and the second voltage conversion circuit respectively.
2. A dual-transformer power dynamic distribution circuit according to claim 1, characterized in that: The first control chip and the second control chip include MCUs.
3. The dual-transformer power dynamic distribution circuit according to claim 1, characterized in that: The current sharing control circuit includes a first switch, a second switch, a third switch and a fourth switch; The first control chip is connected to the first switch and the second switch respectively; the first switch and the second switch are connected to the first interface module respectively; The second control chip is connected to the third switch and the fourth switch respectively; the third switch and the fourth switch are connected to the second interface module respectively; The first switch is connected to the third switch.
4. The dual-transformer power dynamic distribution circuit according to claim 3, characterized in that: The first control chip includes a first voltage detection module for detecting the voltage of an external device connected to the first interface module and / or the second interface module; The second control chip includes a second voltage detection module for detecting the voltage of an external device connected to the first interface module and / or the second interface module.
5. The dual-transformer power dynamic distribution circuit according to claim 3, characterized in that: The first control chip and / or the second control chip also includes a first conduction module, which is respectively connected to the first switch, the second switch and the third switch, and is used to conduct the first switch, the second switch, the third switch and the first transformer circuit and / or the second transformer circuit.
6. The dual-transformer power dynamic distribution circuit according to claim 3, characterized in that: The first control chip and / or the second control chip also includes a second conduction module, which is respectively connected to the first switch, the third switch and the fourth switch, and is used to conduct the first switch, the third switch, the fourth switch and the first transformer circuit and / or the second transformer circuit.
7. The dual-transformer power dynamic distribution circuit according to claim 3, characterized in that: The first control chip further includes a third conduction module, which is connected to the second switch and is used to conduct the second switch and the first voltage conversion circuit.
8. The dual-transformer power dynamic distribution circuit according to claim 3, characterized in that: The second control chip further includes a fourth conducting module, which is connected to the fourth switch and is configured to conduct electricity between the fourth switch and the second voltage conversion circuit.
9. The dual-transformer power dynamic distribution circuit according to claim 1, characterized in that: The first interface module and the second interface module include a TYPE-C interface, and / or a Lightning interface, and / or a USB interface.
10. A charging terminal, characterized in that: A dual-transformer power dynamic distribution circuit according to any one of claims 1 to 9.