CN217508299U - Multichannel multi-protocol quick-charging circuit - Google Patents
Multichannel multi-protocol quick-charging circuit Download PDFInfo
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- CN217508299U CN217508299U CN202122675085.1U CN202122675085U CN217508299U CN 217508299 U CN217508299 U CN 217508299U CN 202122675085 U CN202122675085 U CN 202122675085U CN 217508299 U CN217508299 U CN 217508299U
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Abstract
The utility model discloses a multichannel multi-protocol quick-charging circuit, which comprises a main control circuit module and a plurality of quick-charging circuit modules, wherein the main control circuit module comprises a singlechip control circuit, a channel selection circuit and a communication circuit; the single quick charging circuit module comprises a quick charging control circuit, a quick charging driving circuit, a quick charging current and voltage detection circuit, an output control circuit, a power supply, an interface switching circuit and an output interface; the main control circuit is mainly responsible for reading data such as current and voltage detected by the quick charge circuit and sending the data to an upper computer through the communication circuit, the quick charge circuit is internally provided with a quick charge control circuit, a quick charge driving circuit, a quick charge current and voltage detection circuit, an output control circuit, an interface switching circuit and a quick charge control circuit, and the quick charge control circuit is responsible for returning the detected current and voltage data to the main control circuit and communicating with a test product through an output interface to enable the test product to output corresponding voltage and carry out current limiting control on output; small volume and high efficiency.
Description
Technical Field
The utility model belongs to the technical field of the circuit, specific theory, the utility model relates to a multichannel multi-protocol fills charging circuit soon.
Background
The quick charging device test mode on the existing market, use the adapter that supports the quick function of filling to come to fill ageing fast to the product that needs are ageing, need external collection board to gather when the data in the ageing overcharge of needs are gathered, the problem that this kind of test mode exists is, because it ages to need the adapter that supports the quick function of filling, ageing cost is too high, need external collection board when the ageing data of needs gathering, it is great, this kind of test mode does not support multichannel simultaneous measurement, not high efficiency during the test, do not support data record and save, the protocol that the protocol single of filling supported is comprehensive not enough etc..
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a multichannel multiprotocol fills charging circuit soon supports that the volume is less when charging a plurality of products, and efficiency is higher.
The utility model provides a technical scheme that its technical problem adopted is: a multi-channel multi-protocol quick-charging circuit comprises a main control circuit module and a plurality of quick-charging circuit modules, wherein the main control circuit module is connected with the plurality of quick-charging circuit modules and comprises a single chip microcomputer control circuit, a channel selection circuit and a communication circuit; the single quick charge circuit module comprises a quick charge control circuit, a quick charge driving circuit, a quick charge current and voltage detection circuit, an output control circuit, a power supply, an interface switching circuit and an output interface;
the single chip microcomputer control circuit is connected with the quick charge control circuit and is used for exchanging signals with the quick charge control circuit;
the channel selection circuit is connected with the singlechip control circuit and is used for providing a plurality of detection channels;
the communication circuit is connected with the singlechip control circuit and is used for converting and transmitting signals between the singlechip control circuit and an upper computer;
the quick charge control circuit is connected between the single chip microcomputer control circuit and the quick charge driving circuit, and is used for exchanging signals with the single chip microcomputer control circuit and transmitting the signals to the quick charge driving circuit;
the quick charge driving circuit is connected between the quick charge control circuit and the quick charge current and voltage detection circuit, is connected with the power supply, and is used for receiving the signal of the quick charge control circuit and outputting corresponding voltage, and the power supply supplies power to the quick charge driving circuit;
the fast charging current and voltage detection circuit is connected between the fast charging driving circuit and the output control circuit, is connected with the fast charging control circuit, and is used for detecting the current in the fast charging driving circuit and sending a current signal to the fast charging control circuit;
the output control circuit is connected between the quick charging current and voltage detection circuit and the output interface, is connected with the single chip microcomputer control circuit and is used for receiving signals of the single chip microcomputer control circuit and outputting voltage to the output interface;
the output interface is connected with the output control circuit, connected with the quick charge control circuit and used for outputting voltage to the test product and sending the test product information to the quick charge control circuit;
the interface switching circuit is connected between the single chip microcomputer control circuit and the output interface and used for providing a plurality of interfaces.
In the above technical solution, the fast charge control circuit includes a chip U4, and the fast charge driving circuit includes a field effect transistor U2, a field effect transistor U3, a resistor R9, a fuse F1, a diode D1, and a capacitor C3;
pins D1, D2, D3 and D4 of the field effect tube U2 are all connected with a positive electrode of a power supply, a pin G is connected with a pin HGATE of a chip U4, pins S3, S2 and S1 of the field effect tube U3 are connected with a negative electrode of the power supply, pins S1, S2 and S3 of the field effect tube U2 are connected with pins D1, D2, D3 and D4 of the U3 to form an output end, a resistor R9 is connected with the output end in series, a fuse F1 is connected between the positive electrode of the power supply and the field effect tube U2 in series, a first end of a fuse F1 is connected with the positive electrode of the power supply, a second end of the fuse F1 is connected with a negative electrode of a diode D1, a positive electrode of a diode D1 is grounded, one end of a capacitor C3 is connected with a second end of a fuse F1, and the other end of the capacitor C3 is grounded.
In the above technical solution, the single chip microcomputer control circuit includes a single chip microcomputer U3, the channel selection circuit includes a dial switch S1, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25, and a resistor R26, one end of each of the 6 resistors is connected to the dial switch S1, and the other end of each resistor is connected to a pin P3.2, a pin P3.4, a pin P3.5, a pin P3.6, and a pin P4.0 of the single chip microcomputer U3.
The communication circuit in the technical scheme uploads the digital signals to an upper computer by an RS485 protocol.
The interface switching circuit in the above technical solution includes a TYPEC output interface USB1, a diode D4, a diode D5, a diode D6, a diode D7, a capacitor C20, and a capacitor C21;
the VBUS pin of the output interface USB1 is connected to an output control circuit, the CC1 pin, the CC2 pin, the D + pin and the D-pin of the output interface USB1 are connected to a quick charging control circuit, the cathode of the diode D4 is connected with the CC1 pin of the output interface USB1, the anode of the diode D4 is grounded, the cathode of the diode D5 is connected with the CC2 interface of the output interface USB1, the anode of the diode D6 is grounded, the cathode of the diode D7 is connected with the D-pin of the output interface USB1, the anode of the diode D7 is grounded, and the cathode of the diode D7 is connected with the D-pin of the output interface USB 1.
The beneficial effects of the utility model are that: the device adopts the structural design of a main control circuit module and a plurality of quick-charging circuit modules on a circuit board, solves the problem of measuring the volume of a plurality of products, uses the quick-charging chip design with the internal acquisition of quick-charging current and voltage, so does not need an external acquisition circuit to acquire, the cost of the whole scheme is lower, the device supports the multi-channel product quick-charging test, when more channel product aging tests are needed, the address of each module can be distinguished through dial switches designed on the modules, more channel product aging tests are realized, and the test data is uniformly recorded by the main control circuit module.
Drawings
Fig. 1 is the utility model relates to a multichannel multi-protocol fills charging circuit's functional block diagram soon.
Fig. 2 is a diagram of an embodiment of a channel selection circuit and a single chip control circuit in a multi-channel multi-protocol quick charging circuit.
Fig. 3 is a diagram of an embodiment of a communication circuit in a multi-channel multi-protocol fast charging circuit according to the present invention.
Fig. 4 is a diagram of an embodiment of a fast charging control circuit in a multi-channel multi-protocol fast charging circuit.
Fig. 5 is a diagram of an embodiment of a fast charging driving circuit and a fast charging current and voltage detecting circuit in a multi-channel multi-protocol fast charging circuit.
Fig. 6 is a diagram of an embodiment of an output control circuit in a multi-channel multi-protocol fast charging circuit according to the present invention.
Fig. 7 is a diagram of an embodiment of an output interface and an interface switching circuit in a multi-channel multi-protocol fast charging circuit of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.
Referring to fig. 1, the utility model provides a multichannel multi-protocol quick charging circuit, which comprises a main control circuit module and 8 quick charging circuit modules, wherein the main control circuit module is connected with the quick charging circuit modules, and the main control circuit module comprises a single chip microcomputer control circuit 1, a channel selection circuit 2 and a communication circuit 3; the single quick charge circuit module comprises a quick charge control circuit 4, a quick charge driving circuit 5, a quick charge current and voltage detection circuit 6, an output control circuit 7, a power supply 10, an interface switching circuit 8 and an output interface 9; the single chip microcomputer control circuit 1 is connected with the quick charge control circuit 4 and is used for exchanging signals with the quick charge control circuit 4; the channel selection circuit 2 is connected with the single chip microcomputer control circuit 1 and is used for providing a plurality of detection channels; the communication circuit 3 is connected with the single chip microcomputer control circuit 1 and used for converting and transmitting signals between the single chip microcomputer control circuit 1 and the upper computer 11, and the communication circuit 3 uploads digital signals to the upper computer 11 according to an RS485 protocol; the quick charge control circuit 4 is connected between the single chip microcomputer control circuit 1 and the quick charge driving circuit 5, and is used for exchanging signals with the single chip microcomputer control circuit 1 and transmitting the signals to the quick charge driving circuit 5; the fast charging driving circuit 5 is connected between the fast charging control circuit 4 and the fast charging current and voltage detection circuit 6, is connected with the power supply 10, and is used for receiving the signal of the fast charging control circuit 4 and outputting corresponding voltage, and the power supply 10 supplies power to the fast charging driving circuit 5; the quick charge current and voltage detection circuit 6 is connected between the quick charge driving circuit 5 and the output control circuit 7, is connected with the quick charge control circuit 4, and is used for detecting the current in the quick charge driving circuit 5 and sending a current signal to the quick charge control circuit 4; the output control circuit 7 is connected between the quick charging current and voltage detection circuit 6 and the output interface 9, is connected with the single chip microcomputer control circuit 1, and is used for receiving signals of the single chip microcomputer control circuit 1 and outputting voltage to the output interface 9; the output interface 9 is connected with the output control circuit 7, connected with the quick charge control circuit 1, and used for outputting voltage to the test product and sending the information of the test product to the quick charge control circuit 4; the interface switching circuit 8 is connected between the single chip microcomputer control circuit 1 and the output interface 9, and is used for providing 8 interfaces.
The overall design adopts a main control circuit module and 8 quick charging circuit modules which are structurally integrated on a circuit board, a channel selection circuit 2, a 485 communication circuit 3 and a single chip microcomputer control circuit 1 are designed in the main control circuit, the main control circuit 1 is mainly responsible for reading data such as current and voltage detected by the quick charging circuit and the like, and uniformly integrating the data and sending the data to an upper computer 11 through the 485 communication circuit 3, the address number of the module is determined according to the reading of the channel selection circuit 2, a quick charging control circuit 4, a quick charging driving circuit 5, a quick charging current and voltage detection circuit 6, an output control circuit 7, a USB/TYPEC interface switching circuit 8 and the like are designed in the quick charging circuit, the quick charging control circuit 4 is mainly responsible for returning the detected current and voltage data to the single chip microcomputer control circuit 1 and communicating with a test product through an output interface 9, and controlling the quick charging driving circuit 5 according to the requirement of a product protocol, the corresponding voltage is output, and the output is subjected to current-limiting control.
For channel selection circuit 2 and singlechip control circuit 1, as shown in fig. 2, the utility model provides a specific embodiment, singlechip control circuit 1 includes singlechip U3, channel selection circuit 2 includes dial switch S1, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, 6 resistance one end is connected with dial switch S1 respectively, the other end is connected respectively at the P3.2 pin, P3.4 pin, P3.5 pin, P3.6 pin and P4.0 pin of singlechip U3, S1 dial switch and resistance R21-R26 constitute channel selection circuit 2, R21-R26 are pull-up resistors, when the S1 dial switch is not turned on, the dial switch is connected with the resistor to be in a high level state, otherwise, the dial switch is in a low level state, and the P3.2-P3.6 and P4.0 of the U3 singlechip identify the address number of the module by detecting the state of the dial switch.
For the communication circuit 3, as shown in fig. 3, the present invention provides a specific embodiment.
For the fast charge control circuit 4, as shown in fig. 4, the present invention provides a specific embodiment.
For quick charge drive circuit 5 and quick charge current and voltage detection circuit 6, as shown in fig. 5, the utility model provides a specific embodiment, quick charge control circuit 4, refer to fig. 4, including chip U4, quick charge drive circuit 5 includes field effect transistor U2, field effect transistor U3, resistance R9, fuse F1, diode D1 and electric capacity C3; pins D1, D2, D3 and D4 of the field effect tube U2 are all connected with the positive electrode of the power supply 10, a pin G is connected with a pin HGATE of the chip U4, pins S3, S2 and S1 of the field effect tube U3 are connected with the negative electrode of the power supply 10, pins S1, S2 and S3 of the field effect tube U2 are connected with pins D1, D2, D3 and D4 of the U3 to form an output end, a resistor R9 is connected with the output end in series, a fuse F1 is connected between the positive electrode of the power supply 10 and the field effect tube U2 in series, a first end of the fuse F1 is connected with the positive electrode of the power supply 10, a second end of the fuse F1 is connected with the negative electrode of the diode D1, one end of a capacitor C3 is connected with the second end of the fuse F1, and the other end of the fuse is grounded. The CSPC pin and the CSNC pin of U4 are current and voltage detection pins, the two pins are connected with two ends of a sampling resistor R9 and sample current, the first LGATE pin and the HGATE pin of U4 are output control pins, the two pins determine output PWM signals according to different products and control chip fast-charging protocols, so that the fast-charging driving circuit 5 is controlled to output corresponding voltage, whether the control signals are output or not is controlled by whether the current exceeds a current-limiting current, the SCK pin and the SDA pin of U4 are IC control and data reading pins, and the single chip microcomputer can read detected data such as the fast-charging current, the fast-charging voltage and the like through the two pins. After the power supply is protected by F1 insurance and protected by D1 reverse connection prevention, the power supply is input to a U2 field tube and simultaneously supplies power to a quick charge control chip U4 after being filtered by EC1, C10 and C8, D1-D4 of U2 are connected with the positive electrode of a power supply 10, S3-S1 of U3 are connected with the negative electrode of the power supply 10, U2 and U3 form a driving loop, 4 pins of the driving loop are controlled by a quick charge control circuit 4 through outputting PWM signals, the connection part of S1-S3 pins of U2 and D1-D4 of U3 is used as an output end, the output voltage is filtered by an LC filter circuit formed by L1, C8, C10 and EC2, then the output current is sampled by an R9 sampling circuit, and the sampled current is detected by the U4 quick charge control chip and finally output to an output control circuit 7.
To output control circuit 7, as shown in fig. 6, the utility model provides a specific embodiment, Q2 is a field effect transistor, the one end of sampling resistor R9 is connected to 1-3 of Q2, the output interface is connected to 5-8 feet of Q2, the 4 th foot of Q2 is that the control foot is controlled through R14 by Q1, R15 is that pull-up resistance increases the interference immunity of Q1 collecting electrode, the base of Q1 passes through the singlechip control pin that R20 connects master control circuit, thereby control Q1 by the singlechip and switch on Q2, make voltage output for output interface.
For the output interface 9 and the interface switching circuit 8, as shown in fig. 7, the present invention provides a specific embodiment, the interface switching circuit 8 includes a TYPEC output interface USB1, a diode D4, a diode D5, a diode D6, a diode D7, a capacitor C20, and a capacitor C21;
the VBUS pin of the output interface USB1 is connected to the output control circuit 7, the CC1 pin, the CC2 pin, the D + pin and the D-pin of the output interface USB1 are connected to the quick charging control circuit 4, the cathode of the diode D4 is connected with the CC1 pin of the output interface USB1, the anode of the diode D4 is grounded, the cathode of the diode D5 is connected with the CC2 interface of the output interface USB1, the anode of the diode D6 is grounded, the cathode of the diode D7 is connected with the D-pin of the output interface USB1, the anode of the diode D7 is grounded, and the cathode of the diode D7 is connected with the D-pin of the output interface USB 1. The triode Q3 is connected to the CC1 pin of the U4 quick-charging control chip through a resistor R23, the base of the Q3 is connected with the single chip microcomputer through a resistor R21 for control, when the USB interface is required to be quickly charged, the single chip microcomputer outputs high level, the triode Q3 is controlled to be conducted, the resistor R23 is connected to the CC1 pin of the U4 in a pull-down mode, the output pin can be quickly charged only by connecting DPC and DMC protocol lines, and the general USB interface does not have two pins of the CC1 and the CC2, so the control is required.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (5)
1. The utility model provides a multichannel multiprotocol fills charging circuit soon which characterized in that: the charging device comprises a main control circuit module and a plurality of quick charging circuit modules, wherein the main control circuit module is connected with the plurality of quick charging circuit modules and comprises a single chip microcomputer control circuit, a channel selection circuit and a communication circuit; the single quick charge circuit module comprises a quick charge control circuit, a quick charge driving circuit, a quick charge current and voltage detection circuit, an output control circuit, a power supply, an interface switching circuit and an output interface;
the single chip microcomputer control circuit is connected with the quick charge control circuit and is used for exchanging signals with the quick charge control circuit;
the channel selection circuit is connected with the singlechip control circuit and is used for providing a plurality of detection channels;
the communication circuit is connected with the singlechip control circuit and is used for converting and transmitting signals between the singlechip control circuit and an upper computer;
the quick charge control circuit is connected between the single chip microcomputer control circuit and the quick charge driving circuit, and is used for exchanging signals with the single chip microcomputer control circuit and transmitting the signals to the quick charge driving circuit;
the quick charge driving circuit is connected between the quick charge control circuit and the quick charge current and voltage detection circuit, is connected with the power supply, and is used for receiving the signal of the quick charge control circuit and outputting corresponding voltage, and the power supply supplies power to the quick charge driving circuit;
the fast charging current and voltage detection circuit is connected between the fast charging driving circuit and the output control circuit, is connected with the fast charging control circuit, and is used for detecting the current in the fast charging driving circuit and sending a current signal to the fast charging control circuit;
the output control circuit is connected between the quick charging current and voltage detection circuit and the output interface, is connected with the single chip microcomputer control circuit and is used for receiving signals of the single chip microcomputer control circuit and outputting voltage to the output interface;
the output interface is connected with the output control circuit, is connected with the quick charge control circuit and is used for outputting voltage to a test product and sending test product information to the quick charge control circuit;
the interface switching circuit is connected between the single chip microcomputer control circuit and the output interface and used for providing a plurality of interfaces.
2. The multi-channel multi-protocol fast charging circuit according to claim 1, wherein: the quick charging control circuit comprises a chip U4, and the quick charging driving circuit comprises a field effect transistor U2, a field effect transistor U3, a resistor R9, a fuse F1, a diode D1 and a capacitor C3;
pins D1, D2, D3 and D4 of the field effect tube U2 are all connected with a positive electrode of a power supply, a pin G is connected with a pin HGATE of a chip U4, pins S3, S2 and S1 of the field effect tube U3 are connected with a negative electrode of the power supply, pins S1, S2 and S3 of the field effect tube U2 are connected with pins D1, D2, D3 and D4 of the U3 to form an output end, a resistor R9 is connected with the output end in series, a fuse F1 is connected between the positive electrode of the power supply and the field effect tube U2 in series, a first end of a fuse F1 is connected with the positive electrode of the power supply, a second end of the fuse F1 is connected with a negative electrode of a diode D1, a positive electrode of a diode D1 is grounded, one end of a capacitor C3 is connected with a second end of a fuse F1, and the other end of the capacitor C3 is grounded.
3. The multi-channel multi-protocol fast charging circuit according to claim 1, wherein: the single chip microcomputer control circuit comprises a single chip microcomputer U3, the channel selection circuit comprises a dial switch S1, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25 and a resistor R26, one end of each of the 6 resistors is connected with the dial switch S1, and the other end of each resistor is connected with a P3.2 pin, a P3.4 pin, a P3.5 pin, a P3.6 pin and a P4.0 pin of the single chip microcomputer U3.
4. The multi-channel multi-protocol fast charging circuit according to claim 1, wherein: the communication circuit uploads the digital signals to an upper computer by an RS485 protocol.
5. The multi-channel multi-protocol fast charging circuit according to claim 1, wherein: the interface switching circuit comprises a TYPEC output interface USB1, a diode D4, a diode D5, a diode D6, a diode D7, a capacitor C20 and a capacitor C21;
the VBUS pin of the output interface USB1 is connected to an output control circuit, the CC1 pin, the CC2 pin, the D + pin and the D-pin of the output interface USB1 are connected to a quick charging control circuit, the cathode of the diode D4 is connected with the CC1 pin of the output interface USB1, the anode of the diode D4 is grounded, the cathode of the diode D5 is connected with the CC2 interface of the output interface USB1, the anode of the diode D6 is grounded, the cathode of the diode D7 is connected with the D-pin of the output interface USB1, the anode of the diode D7 is grounded, and the cathode of the diode D7 is connected with the D-pin of the output interface USB 1.
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| CN202122675085.1U CN217508299U (en) | 2021-11-01 | 2021-11-01 | Multichannel multi-protocol quick-charging circuit |
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| CN202122675085.1U CN217508299U (en) | 2021-11-01 | 2021-11-01 | Multichannel multi-protocol quick-charging circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116247783A (en) * | 2023-05-11 | 2023-06-09 | 高新兴智联科技股份有限公司 | 18650 battery quick charge system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116247783A (en) * | 2023-05-11 | 2023-06-09 | 高新兴智联科技股份有限公司 | 18650 battery quick charge system |
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