Charging circuit and charger

Abstract

The utility model discloses a charging circuit and a charger. The charging circuit comprises a master control chip, a switching power supply circuit, a master protocol chip, a slave protocol chip, a first output circuit and a second output circuit. The main control chip is connected with the main protocol chip and is used for outputting a power distribution signal to the main protocol chip; the input end of the switching power supply circuit is used for being connected with a mains supply, and the output end of the switching power supply circuit is connected with the input end of the first output circuit and the input end of the second output circuit; the output end of the first output circuit and the output end of the second output circuit are respectively used for being connected with a device to be charged. According to the charging circuit, the power distribution signal can be output to the main protocol chip through the main control chip, so that the main protocol chip distributes the total power, active distribution and adjustment of the output power of different output ports are realized, and the actual requirements of users can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a charger technical field especially relates to a charging circuit and charger. BACKGROUND

[0002] The existing multi-port charger when simultaneously charging multiple devices, the distribution of output power of different charging ports is related to the type, remaining power and brand of the device connected to the charging port. For example, when the charging port is connected to a mobile phone and a computer at the same time, the computer is preferentially outputted with a larger output power, and for example, when the charging port is connected to multiple mobile phones at the same time, the mobile phone with lower power is preferentially outputted with a larger output power, which cannot actively distribute and adjust the total power and cannot adapt to the actual charging needs of the user. SUMMARY

[0003] The utility model embodiment provides a kind of charging circuit and charger, to solve the problem that multi-port charger cannot actively distribute and adjust total power.

[0004] The utility model embodiment provides a kind of charging circuit, including main control chip, switching power supply circuit, main protocol chip, slave protocol chip, first output circuit and second output circuit;

[0005] The main control chip is connected with the main protocol chip, for outputting power distribution signal to the main protocol chip;

[0006] The input end of the switching power supply circuit is used to connect commercial power supply, and the output end of the switching power supply circuit is connected with the input end of the first output circuit and the input end of the second output circuit;

[0007] The output end of the first output circuit and the output end of the second output circuit are used to connect a to-be-charged device respectively;

[0008] The main protocol chip is connected with the first output circuit, and is connected with the slave protocol chip, for determining first power signal and second power signal according to the power distribution signal, controls the first output circuit to work based on the first power signal, and outputs second power signal to the slave protocol chip;

[0009] The slave protocol chip is connected with the second output circuit, for controlling the second output circuit to work based on the second power signal.

[0010] Preferably, the charging circuit further includes signal acquisition circuit;

[0011] The signal acquisition circuit is connected with the main control chip, for acquiring instruction signal;

[0012] The master control chip is configured to output the power distribution signal to the master protocol chip based on the instruction signal.

[0013] Preferably, the signal acquisition circuit comprises a voice detection module.

[0014] The voice detection module is connected to the master control chip and configured to acquire a voice signal.

[0015] The master control chip is configured to output the power distribution signal to the master protocol chip based on the voice signal.

[0016] Preferably, the signal acquisition circuit further comprises a Bluetooth module.

[0017] The Bluetooth module is connected to the master control chip and further configured to communicate with an external terminal and acquire a Bluetooth signal.

[0018] The master control chip is configured to output a power distribution signal to the master protocol chip based on the Bluetooth signal.

[0019] The master control chip is further configured to control the Bluetooth module to communicate with the external terminal based on the voice signal.

[0020] Preferably, the charging circuit further comprises an LED module.

[0021] The master control chip is further configured to output an LED control signal to the master protocol chip based on the instruction signal.

[0022] The master protocol chip is connected to the LED module and configured to control the LED module to work according to the LED control signal.

[0023] Preferably, the LED module comprises at least one LED light-emitting module.

[0024] The master protocol chip is connected to the at least one LED light-emitting module and configured to control the at least one LED light-emitting module to work.

[0025] Preferably, the LED module further comprises a voltage reduction unit.

[0026] The voltage reduction unit has a first end connected to an output end of the switching power supply circuit and a second end connected to the at least one LED light-emitting module, and is configured to provide a power supply voltage for the LED light-emitting module.

[0027] Preferably, the charging circuit comprises at least one slave protocol chip and at least one second output circuit.

[0028] The master protocol chip is configured to determine a first power signal and at least one second power signal according to the power distribution signal, control the first output circuit to work based on the first power signal, and output a second power signal to each of the slave protocol chips;

[0029] Each of the slave protocol chips is connected with a second output circuit, and is configured to control the second output circuit to work based on a second power signal.

[0030] Preferably, the master control chip is connected with the master protocol chip through a serial interface, and the master protocol chip is connected with the slave protocol chip through an I2C bus.

[0031] The utility model embodiment further provides a charger, including the charging circuit of any of the above.

[0032] The charging circuit and the charger provided by the utility model embodiment can output a power distribution signal to the master protocol chip through the master control chip, so that the master protocol chip distributes the total power output by the switching power supply circuit, the master protocol chip can control the first output circuit to work based on the first power signal according to the power distribution result, and send the second power signal to the slave protocol chip, so that the slave protocol chip controls the second output circuit to work based on the second power signal, thereby changing the output power of the first output circuit and the second output circuit, and actively distributing and adjusting the output power of different output ports, which can better adapt to the actual needs of users. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the description of the utility model embodiment, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0034] Figure 1 It is a block diagram structure schematic view of the charging circuit in the utility model embodiment.

[0035] In the figure: 1, master control chip;2, switching power supply circuit;3, master protocol chip;4, slave protocol chip;5, first output circuit;6, second output circuit;7, signal acquisition circuit;71, voice detection module;72, bluetooth module;8, LED module;81, LED light emitting module;82, voltage reduction unit. DETAILED DESCRIPTION

[0036] Clearly, the described embodiments are only some, but not all implementations of this application. Based on the embodiments of the present application described above, those skilled in the art can obtain all other embodiments within the scope of the present application without any inventive effort, and these embodiments all belong to the scope of the present application.

[0037] It is to be understood that the application can assume various alternative forms of embodiment, and it is not to be limited to the embodiments set forth and described herein. Rather, the instant disclosure is intended to cover all adaptations, modifications, and equivalents. In addition, unless expressly stated otherwise, the description of an embodiment should not be construed as indicating that the features, items or components relating thereto are essential or indispensable. In the drawings, the size and relative sizes of layers and regions can be exaggerated for clarity.

[0038] It will be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it can be directly on or connected to the other element or layer or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element or layer, there are no intervening elements or layers present. It will also be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms since such terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section.

[0039] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0040] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0041] For a thorough understanding of the present application, reference will be made to the following detailed description, in conjunction with the accompanying drawings, in which:

[0042] The charging circuit includes a master control chip 1, a switching power supply circuit 2, a master protocol chip 3, a slave protocol chip 4, a first output circuit 5 and a second output circuit 6. The master control chip 1 is connected with the master protocol chip 3, and is used for outputting a power distribution signal to the master protocol chip 3. An input end of the switching power supply circuit 2 is used for connecting a commercial power supply. An output end of the switching power supply circuit 2 is connected with an input end of the first output circuit 5 and an input end of the second output circuit 6. Output ends of the first output circuit 5 and the second output circuit 6 are respectively used for connecting a to-be-charged device. The master protocol chip 3 is connected with the first output circuit 5 and the slave protocol chip 4, and is used for determining a first power signal and a second power signal according to the power distribution signal, controlling the first output circuit 5 to work based on the first power signal, and outputting the second power signal to the slave protocol chip 4. The slave protocol chip 4 is connected with the second output circuit 6, and is used for controlling the second output circuit 6 to work based on the second power signal.

[0043] As an example, the charging circuit includes a master control chip 1, a switching power supply circuit 2, a master protocol chip 3, a slave protocol chip 4, a first output circuit 5 and a second output circuit 6. The switching power supply circuit 2 can include a primary rectification filtering module and a transformer module. An input end of the primary rectification filtering module is used for connecting a commercial power supply. An output end of the primary rectification filtering module is connected with a primary end of the transformer module. A secondary end of the transformer module is connected with an input end of the first output circuit 5 and an input end of the second output circuit 6. Output ends of the first output circuit 5 and the second output circuit 6 are respectively connected with an output interface. The output interface is used for connecting a to-be-charged device. The first output circuit 5 and the second output circuit 6 are used for dividing total power output by the transformer module, and outputting to respective output interfaces, so as to charge different to-be-charged devices.

[0044] The main control chip 1 is connected with the main protocol chip 3, and can output a power distribution signal to the main protocol chip 3. The power distribution signal can carry specific power distribution instructions. For example, when the total output power of the switching power supply is 120W, the power distribution instructions are used to make the first output circuit 5 output 80W and the second output circuit 6 output 40W, or to make the first output circuit 5 output 20W and the second output circuit 6 output 100W. After receiving the power distribution signal, the main protocol chip 3 can determine the output power of the first output circuit 5 and the second output circuit 6 according to the power distribution signal, and form a first power signal and a second power signal. The main protocol chip 3 controls the first output circuit 5 to work based on the first power signal, so that the first output circuit 5 outputs according to the first power. The main protocol chip 3 is also connected with the slave protocol chip 4, and can send the second power signal to the slave protocol chip 4 through I2C communication, so that the slave protocol chip 4 controls the second output circuit 6 to work based on the second power signal, so that the second output circuit 6 outputs according to the second power.

[0045] In the example, the main control chip 1 can output a power distribution signal to the main protocol chip 3, so that the main protocol chip 3 distributes the total power output by the switching power supply circuit 2. The main protocol chip 3 can control the first output circuit 5 to work based on the first power signal according to the power distribution result, and send the second power signal to the slave protocol chip 4, so that the slave protocol chip 4 controls the second output circuit 6 to work based on the second power signal, thereby changing the output power of the first output circuit 5 and the second output circuit 6, and actively distributing and adjusting the output power of different output ports, which can better adapt to the actual needs of users.

[0046] In an embodiment, the charging circuit further comprises a signal acquisition circuit 7; the signal acquisition circuit 7 is connected with the main control chip 1 and is used to acquire an instruction signal; and the main control chip 1 is used to output a power distribution signal to the main protocol chip 3 based on the instruction signal.

[0047] As an example, the charging circuit further comprises a signal acquisition circuit 7. The signal acquisition circuit 7 is connected to the master control chip 1 and can acquire an instruction signal. The instruction signal can include a signal output by a user and carrying special instruction information, such as a Bluetooth signal or a voice signal carrying power adjustment instruction information. The signal acquisition circuit 7 can transmit the instruction signal in the form of an electrical signal to the master control chip 1, so that the master control chip 1 identifies the special instruction information carried in the electrical signal. When the master control chip 1 identifies that the instruction signal carries power adjustment instruction information, the master protocol chip 3 outputs a power distribution signal carrying a corresponding power distribution instruction. For example, the signal acquisition circuit 7 can acquire a voice signal output by a user and convert the voice signal into an electrical signal and send the electrical signal to the master control chip 1. The master control chip 1 identifies the electrical signal, acquires an output power distribution signal, and sends the output power distribution signal to the master protocol chip 3.

[0048] In this example, by providing the signal acquisition circuit, a signal output by a user and carrying special instruction information can be acquired, and the master control chip 1 can output a power distribution signal to the master protocol chip 3 according to the instruction signal, so that the output power can be actively distributed and adjusted according to the user instruction.

[0049] In an embodiment, the signal acquisition circuit 7 comprises a voice detection module 71. The voice detection module 71 is connected to the master control chip 1 and is configured to acquire a voice signal. The master control chip 1 is configured to output a power distribution signal to the master protocol chip 3 based on the voice signal.

[0050] As an example, the signal acquisition circuit 7 comprises a voice detection module 71. The voice detection module 71 can comprise a microphone connected to the master control chip 1 and configured to acquire a voice signal and convert the voice signal into an electrical signal and send the electrical signal to the master control chip 1. The master control chip 1 can use a built-in voice recognition algorithm, such as the Sibosh algorithm, to identify the electrical signal returned by the microphone, acquire a power distribution signal, and output the power distribution signal. For example, when the master control chip 1 identifies that the voice signal contains a short sentence or a word with similar semantics as "power adjustment", "control the first interface to enter the fast charging mode", "control the second interface to enter the slow charging mode", etc., it indicates that the acquired voice signal carries power adjustment instruction information. The master control chip 1 generates a power distribution signal carrying a corresponding power distribution instruction and sends the power distribution signal to the master protocol chip 3 through a serial port, so that the master protocol chip 3 distributes power according to the power distribution signal.

[0051] In an embodiment, the signal acquisition circuit 7 further comprises a Bluetooth module 72; the Bluetooth module 72 is connected with the master control chip 1, and is further used for being in communication connection with an external terminal, and is used for acquiring a Bluetooth signal; the master control chip 1 is used for outputting a power distribution signal to the master protocol chip 3 based on the Bluetooth signal; and / or, the master control chip 1 is further used for controlling the Bluetooth module 72 to output a terminal response signal to the external terminal based on the voice signal.

[0052] As an example, the signal acquisition circuit 7 further comprises the Bluetooth module 72, and the Bluetooth module 72 is connected with the master control chip 1. The Bluetooth module 72 further performs Bluetooth matching with the external terminal, establishes a communication connection, and performs Bluetooth communication. When a user sends a Bluetooth signal carrying power adjustment instruction information through the external terminal, the Bluetooth module 72 can receive the Bluetooth signal, and transmit the Bluetooth signal to the master control chip 1. When the master control chip 1 identifies that the Bluetooth signal carries the power adjustment instruction information, the master control chip 1 can output a power distribution signal carrying a corresponding power distribution instruction to the master control chip 1 based on the power adjustment instruction information carried in the Bluetooth signal, so that the master protocol chip 3 performs power distribution according to the power distribution signal. When the master control chip 1 identifies a word or voice similar to the semantics of “mobile phone searching” or “terminal searching” from the voice signal acquired by the voice detection module 71, it indicates that the acquired voice signal carries terminal searching instruction information. The master control chip 1 can control the Bluetooth module 72 to output a terminal response signal to the matched external terminal, so that the external terminal emits a sound / light response according to the terminal response signal, and performs position prompting, thereby facilitating the user to find the external terminal.

[0053] In an embodiment, the charging circuit further comprises an LED module 8; the master control chip 1 is further used for outputting an LED control signal to the master protocol chip 3 based on the instruction signal; the master protocol chip 3 is connected with the LED module 8, and is used for controlling the LED module 8 to work according to the LED control signal.

[0054] As an example, the charging circuit further comprises the LED module 8. The LED module 8 is connected with the master protocol chip 3, and can work according to the LED control signal sent by the master protocol chip 3. When the master control chip 1 identifies that the instruction signal carries LED control instruction information, for example, the master control chip 1 identifies that there is a word or voice similar to the semantics of “turning on the light”, “turning off the light”, “brightness adjustment” and the like in the voice signal acquired by the voice detection module 71, or identifies that the Bluetooth signal acquired by the Bluetooth module 72 carries the LED control instruction information, the master control chip 1 outputs a corresponding LED control signal to the master protocol chip 3, so that the master protocol chip 3 controls the LED module 8 to work based on the LED control signal.

[0055] In an embodiment, the LED module 8 comprises at least one LED light-emitting module 81; a control terminal of the at least one LED light-emitting module 81 is connected to the master protocol chip 3, and the at least one LED light-emitting module 81 is configured to work under the control of the master protocol chip 3.

[0056] As an example, the LED module 8 comprises at least one LED light-emitting module 81, which can be a WS2812B-Mini-V3 intelligent external control integrated LED light source. Each LED light-emitting module 81 comprises a control signal input terminal and a control signal output terminal. The control signal input terminal is configured to be connected to the master protocol chip 3, so that the LED light-emitting module 81 works under the control of the master protocol chip 3. When there are at least two LED light-emitting modules 81, the control signal output terminal of one LED light-emitting module 81 is connected to the control signal input terminal of another LED light-emitting module 81. The control signal input terminal of the first LED light-emitting module 81 is connected to the master protocol chip 3. The control signal output by the master protocol chip 3 can be transmitted from the first LED light-emitting module 81 to the last LED light-emitting module 81, so that at least two LED light-emitting modules 81 are controlled by one control port of the master protocol chip 3.

[0057] In an embodiment, the LED module 8 further comprises a voltage reduction unit 82; a first end of the voltage reduction unit 82 is connected to the output terminal of the switching power supply circuit 2, and a second end of the voltage reduction unit 82 is connected to the at least one LED light-emitting module 81, so as to provide a power supply voltage for the LED light-emitting module 81.

[0058] As an example, the LED module 8 further comprises a voltage reduction unit 82; a first end of the voltage reduction unit 82 is connected to the output terminal of the switching power supply circuit 2, and at least one LED light-emitting module 81 is connected in parallel at the second end of the voltage reduction unit 82. The voltage reduction unit 82 can perform DC-DC voltage conversion on the voltage output by the switching power supply circuit 2, so as to realize voltage reduction processing and supply power for the LED light-emitting module 81.

[0059] In an embodiment, the charging circuit comprises at least one slave protocol chip 4 and at least one second output circuit 6; the master protocol chip 3 is configured to determine a first power signal and at least one second power signal according to the power distribution signal, control the first output circuit 5 to work based on the first power signal, and output one second power signal to each slave protocol chip 4; each slave protocol chip 4 is connected to one second output circuit 6, and is configured to control the second output circuit 6 to work based on the second power signal.

[0060] As an example, the charging circuit can include at least one slave protocol chip 4 and at least one second output circuit 6, an input end of each second output circuit 6 is connected with a secondary end of a transformer module in the switching power supply circuit 2, and an output end of each second output circuit 6 is connected with an output interface for connecting a device to be charged. The power distribution signal output by the master control chip 1 to the master protocol chip 3 can carry a specific power distribution instruction, for example, the power distribution instruction is used for making the first output circuit 5 output the first power and the at least one second output circuit 6 output the second power. After receiving the power distribution signal, the master protocol chip 3 can form the first power signal and the at least one second power signal according to the power distribution signal, and send the at least one second power signal to the corresponding slave protocol chip 4, so that each slave protocol chip 4 controls the second output circuit 6 connected thereto to work based on the second power signal, so that each second output circuit 6 outputs according to the second power.

[0061] In an embodiment, the master control chip 1 is connected with the master protocol chip 3 through a serial interface; and the master protocol chip 3 is connected with the slave protocol chip 4 through an I2C bus.

[0062] As an example, the master control chip 1 is connected with the master protocol chip 3 through a serial interface, and can perform serial communication to transfer the power distribution instruction. The master protocol chip 3 is connected with the slave protocol chip 4 through an I2C bus to perform transmission of the second power signal.

[0063] The embodiment of the utility model further provides a charger which includes the charging circuit in the above embodiment.

[0064] As an example, the charger includes the charging circuit in the above example, and in this example, the charging circuit can output a power distribution signal to the master protocol chip 3 through the master control chip 1, so that the master protocol chip 3 distributes the total power output by the switching power supply circuit 2. According to the power distribution result, the master protocol chip 3 can control the first output circuit 5 to work based on the first power signal, and send the second power signal to the slave protocol chip 4, so that the slave protocol chip 4 controls the second output circuit 6 to work based on the second power signal, thereby changing the output power of the first output circuit 5 and the second output circuit 6, and actively distributing and adjusting the output power of different output ports, which can better adapt to the actual needs of users.

[0065] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A charging circuit, characterized by, The charging circuit comprises a master control chip, a switching power supply circuit, a master protocol chip, a slave protocol chip, a first output circuit and a second output circuit; The master control chip is connected with the master protocol chip and is configured to output a power distribution signal to the master protocol chip; An input end of the switching power supply circuit is configured to be connected with a commercial power supply, and an output end of the switching power supply circuit is connected with an input end of the first output circuit and an input end of the second output circuit; Output ends of the first output circuit and the second output circuit are configured to be connected with a device to be charged respectively; The master protocol chip is connected with the first output circuit and is connected with the slave protocol chip, and is configured to determine a first power signal and a second power signal according to the power distribution signal, control the first output circuit to work based on the first power signal, and output the second power signal to the slave protocol chip; The slave protocol chip is connected with the second output circuit, and is configured to control the second output circuit to work based on the second power signal.

2. The charging circuit of claim 1, wherein, The charging circuit further comprises a signal acquisition circuit; The signal acquisition circuit is connected with the master control chip, and is configured to acquire an instruction signal; The master control chip is configured to output the power distribution signal to the master protocol chip based on the instruction signal.

3. The charging circuit of claim 2, wherein, The signal acquisition circuit comprises a voice detection module; The voice detection module is connected with the master control chip, and is configured to acquire a voice signal; The master control chip is configured to output the power distribution signal to the master protocol chip based on the voice signal.

4. The charging circuit of claim 3, wherein, The signal acquisition circuit further comprises a Bluetooth module; The Bluetooth module is connected with the master control chip, and is further configured to be in communication connection with an external terminal, and is configured to acquire a Bluetooth signal; The master control chip is configured to output the power distribution signal to the master protocol chip based on the Bluetooth signal; And / or, the master control chip is further configured to control the Bluetooth module to communicate with the external terminal based on the voice signal.

5. The charging circuit of claim 2, wherein, The charging circuit further comprises an LED module; The master control chip is further configured to output an LED control signal to the master protocol chip based on the instruction signal; The master protocol chip is connected with the LED module, and is configured to control the LED module to work according to the LED control signal.

6. The charging circuit of claim 5, wherein, The LED module comprises at least one LED light emitting module; The master protocol chip is connected with at least one LED light emitting module, and is configured to control at least one LED light emitting module to work.

7. The charging circuit of claim 6, wherein, The LED module further comprises a voltage reduction unit; A first end of the voltage reduction unit is connected with an output end of the switching power supply circuit, and a second end of the voltage reduction unit is connected with at least one LED light emitting module, and is configured to provide a power supply voltage for the LED light emitting module.

8. The charging circuit of claim 1, wherein, The charging circuit comprises at least one slave protocol chip and at least one second output circuit; The master protocol chip is configured to determine a first power signal and at least one second power signal according to the power distribution signal, control the first output circuit to work based on the first power signal, and output one second power signal to each slave protocol chip; Each of the slave protocol chips is connected with a second output circuit, and is configured to control the second output circuit to work based on a second power signal.

9. The charging circuit of claim 1, wherein, The master chip is connected with the master protocol chip through a serial interface; and the master protocol chip is connected with the slave protocol chips through an I2C bus.

10. A charger characterized by comprising: A charging circuit comprising the charging circuit of any one of claims 1 to 9.

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