Multi-section voltage regulation type charging driving circuit compatible with TYPE-C interface

Abstract

The utility model discloses a multi-section voltage regulation type charging driving circuit compatible with a TYPE-C interface. The circuit comprises a control module and a charging management module. The charging management module comprises a charging switch module, a charging detection module and a charging buck-boost module; the circuit further comprises a TYPE-C interface module. According to the utility model, the charging detection module is used for detecting the charging parameters of the storage battery, the control module is used for calculating the optimal charging voltage, the charging buck-boost module is used for carrying out multi-section voltage regulation operation, and the charging switch module is arranged, so that a reverse connection prevention function is realized, and the phenomenon that the storage battery is static, flows backward and discharges is prevented; meanwhile, the TYPE-C interface module is arranged to be compatible with rapid charging of a TYPE-C interface, high charging current is achieved, and the charging efficiency of the storage battery is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging drive circuits, and in particular to a multi-stage voltage-regulated charging drive circuit compatible with a TYPE-C interface. Background Art

[0002] The battery charging drive circuit currently used in automobiles typically takes an input voltage of 10.5V-14.2V. After internal voltage regulation, including step-up and step-down, it outputs a voltage approximately 1V higher than the battery voltage to charge the battery, shutting down the charging circuit once fully charged. However, this charging drive circuit has certain drawbacks: if the charging drive circuit experiences operational deviations, such as when the battery voltage is less than 12.7V when depleted or greater than 14.2V when fully charged, it will be unable to automatically perform the step-up and step-down voltage regulation. Furthermore, after two stages of DC voltage conversion, it cannot achieve a high charging current exceeding 2.4A, resulting in low battery charging efficiency and low charging power utilization. Furthermore, given the prevalence of Type-C devices, incompatibility with Type-C charging is also a concern. Utility Model Content

[0003] The purpose of the present utility model is to overcome the shortcomings of the existing technology. The present utility model provides a multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface. The charging parameters of the battery are detected by setting a charging detection module, and the optimal charging voltage is calculated by the control module. The multi-stage voltage regulation operation is performed by the charging buck-boost module. A charging switch module is set with an anti-reverse connection function to prevent the phenomenon of static backflow discharge of the battery. At the same time, a TYPE-C interface module is set to be compatible with the fast charging of the TYPE-C interface, so as to achieve a higher charging current and effectively improve the efficiency of battery charging.

[0004] The utility model provides a multi-stage voltage-regulated charging drive circuit compatible with a TYPE-C interface. The circuit includes a control module and a charging management module. The control module is connected to the charging management module. The input end of the charging management module is connected to a charging input power supply, and the output end of the charging management module is connected to a battery.

[0005] The charging management module includes a charging switch module, a charging detection module and a charging buck-boost module. The input end of the charging buck-boost module is connected to the charging input power supply, the output end of the charging buck-boost module is connected to the input end of the charging switch module, the output end of the charging switch module is connected to the battery, and the charging detection module is connected to the charging buck-boost module and the battery respectively.

[0006] The charging management module also includes a TYPE-C interface module, which is connected to the charging switch module and the battery respectively.

[0007] Further, the TYPE-C interface module includes a TYPE-C interface detection module, which includes a TYPE-C interface detection chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C22, and an inductor L1, wherein:

[0008] The first end of the resistor R1 and the first end of the capacitor C2 are connected to pin 17 of the TYPE-C interface detection chip U1, the second end of the resistor R1 and the first end of the resistor R2 are connected to pins 13, 14, and 15 of the TYPE-C interface detection chip U1, the second end of the resistor R2 and the second end of the capacitor C2 are connected to pin 18 of the TYPE-C interface detection chip U1 and to the positive electrode BAT+ of the battery, the first end of the capacitor C1 is connected to pin 21 of the TYPE-C interface detection chip U1 and to the positive electrode BAT+ of the battery, and the second end of the capacitor C1 is connected to pin 22 of the TYPE-C interface detection chip U1 and to ground GND;

[0009] The first end of the capacitor C6, the first end of the capacitor C7, the first end of the capacitor C8, the first end of the capacitor C9, and the first end of the capacitor C10 are connected to the pin 18 of the TYPE-C interface detection chip U1, and the second end of the capacitor C6, the second end of the capacitor C7, the second end of the capacitor C8, the second end of the capacitor C9, and the second end of the capacitor C10 are connected to the negative electrode GND- of the battery and to the ground GND;

[0010] A first end of the capacitor C3 is connected to pin 12 of the TYPE-C interface detection chip U1, a second end of the capacitor C3, a first end of the inductor L1, and a first end of the resistor R3 are connected to pins 10 and 11 of the TYPE-C interface detection chip U1, a second end of the inductor L1 and a first end of the resistor R4 are connected to pins 6 and 7 of the TYPE-C interface detection chip U1, a second end of the resistor R3 is connected to the first end of the capacitor C4, a second end of the resistor R4 is connected to the second end of the capacitor C5, and the second ends of the capacitors C4 and C5 are grounded GND;

[0011] The first end of the resistor R5 and the first end of the resistor R6 are connected to pins 1 and 2 of the TYPE-C interface detection chip U1, the second end of the resistor R6 and the first end of the capacitor C11 are connected to pin 53 of the TYPE-C interface detection chip U1, and the second end of the capacitor C11 and the second end of the resistor R5 are connected to pin 52 of the TYPE-C interface detection chip U1;

[0012] The first end of the capacitor C17, the first end of the capacitor C12, the first end of the capacitor C13, the first end of the capacitor C14, the first end of the capacitor C15, and the first end of the capacitor C16 are connected to the pin 51 of the TYPE-C interface detection chip U1, and the second end of the capacitor C17, the second end of the capacitor C12, the second end of the capacitor C13, the second end of the capacitor C14, the second end of the capacitor C15, and the second end of the capacitor C16 are grounded GND;

[0013] A first end of the capacitor C22 is connected to a pin 60 of the TYPE-C interface detection chip U1 , and a second end of the capacitor C22 is connected to a pin 62 of the TYPE-C interface detection chip U1 .

[0014] Furthermore, the TYPE-C interface module also includes a TYPE-C interface input and output module, which includes a TYPE-C interface input and output chip USBC1, a resistor R7, and a capacitor C18, wherein:

[0015] The first end of the resistor R7 and the first end of the capacitor C18 are connected to pins A9 and A4 of the TYPE-C interface input and output chip USBC1, and to pin 52 of the TYPE-C interface detection chip U1. The second ends of the resistor R7 and the capacitor C18 are grounded GND. Pins A1 and B12 of the TYPE-C interface input and output chip USBC1 are connected to the negative pole GND- of the battery and to the ground GND.

[0016] Furthermore, the TYPE-C interface module further includes a capacitor C20, a capacitor C21, a resistor R10, a capacitor C19, and a resistor R9, wherein:

[0017] The capacitor C20, the capacitor C21, the resistor R10, the capacitor C19, and the resistor R9 are all grounded to GND.

[0018] Furthermore, the control module includes a main control module and an auxiliary control module, and the main control module is connected to the auxiliary control module.

[0019] Furthermore, the charging detection module includes a charging voltage detection module, a charging current detection module and a battery voltage detection module, and the charging voltage detection module, the charging current detection module and the battery voltage detection module are connected to the control module, the charging buck-boost module and the battery.

[0020] Furthermore, the circuit also includes a voice module, and the voice module is connected to the control module.

[0021] Furthermore, the circuit also includes an indicator light module, and the indicator light module is connected to the control module.

[0022] Furthermore, the circuit also includes a key module, and the key module is connected to the control module.

[0023] Furthermore, the charging buck-boost module includes a charging boost module and a charging buck module, the input end of the charging boost module is connected to the charging input power supply, the output end of the charging boost module is connected to the input end of the charging buck module, and the output end of the charging buck module is connected to the charging switch module.

[0024] The utility model provides a multi-stage voltage-regulating charging drive circuit compatible with a TYPE-C interface. A charging detection module is set to detect the charging parameters of a battery, and after the control module calculates the optimal charging voltage, a multi-stage voltage-regulating operation is performed through the charging step-up and step-down module. This solves the problem in the current automotive field that the battery charging drive circuit on a car cannot automatically perform the voltage-regulating operations of stepping up and stepping down when an operation deviation occurs and the battery has a low power less than 12.7V and a full-charge voltage greater than 14.2V. A charging switch module is set to control the on-off of the circuit and has an anti-reverse connection function to prevent the phenomenon of static backflow discharge of the battery, thereby ensuring the safety and reliability of charging. At the same time, a TYPE-C interface module is set to be compatible with the fast charging of the TYPE-C interface, so as to achieve a higher charging current and effectively improve the efficiency of battery charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the circuit module framework in an embodiment of the present utility model;

[0027] Figure 2This is the electrical schematic diagram of the TYPE-C interface module in the embodiment of the present utility model;

[0028] Figure 3 This is an electrical schematic diagram of the charging switch module in the embodiment of the present utility model;

[0029] Figure 4 This is an electrical schematic diagram of the charging voltage detection module in an embodiment of the present utility model;

[0030] Figure 5 This is an electrical schematic diagram of the charging current detection module in the embodiment of the present utility model;

[0031] Figure 6 This is an electrical schematic diagram of a battery voltage detection module in an embodiment of the present utility model;

[0032] Figure 7 This is an electrical schematic diagram of the main control module in the embodiment of the present utility model;

[0033] Figure 8 This is the electrical principle diagram of the auxiliary control module in the embodiment of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] An embodiment of the present utility model provides a multi-stage voltage-regulated charging drive circuit compatible with a TYPE-C interface, the circuit including a control module and a charging management module, the control module being connected to the charging management module, the input end of the charging management module being connected to a charging input power supply, and the output end of the charging management module being connected to a battery; the charging management module including a charging switch module, a charging detection module and a charging buck-boost module, the input end of the charging buck-boost module being connected to a charging input power supply, the output end of the charging buck-boost module being connected to an input end of the charging switch module, the output end of the charging switch module being connected to a battery, and the charging detection module being respectively connected to the charging buck-boost module and the battery; the charging management module also including a TYPE-C interface module, and the TYPE-C interface module being respectively connected to the charging switch module and the battery.

[0036] In an optional implementation of this embodiment, as Figure 1 As shown, Figure 1A schematic diagram of the circuit module framework in an embodiment of the present utility model is shown. The circuit includes a control module and a charging management module. The control module is connected to the charging management module. The input end of the charging management module is connected to the charging input power supply, and the output end of the charging management module is connected to the battery.

[0037] In an optional implementation of this embodiment, the charging management module includes a charging switch module, a charging detection module, a charging buck-boost module and a TYPE-C interface module, the input end of the charging buck-boost module is connected to the charging input power supply, the output end of the charging buck-boost module is connected to the input end of the charging switch module, the output end of the charging switch module is connected to the battery, the charging detection module is respectively connected to the charging buck-boost module and the battery, and the TYPE-C interface module is respectively connected to the charging switch module and the battery.

[0038] In an optional implementation of this embodiment, as Figure 2 As shown, Figure 2 The electrical schematic diagram of the TYPE-C interface module in the embodiment of the present utility model is shown. The TYPE-C interface module includes a TYPE-C interface detection module, which includes a TYPE-C interface detection chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C22, and an inductor L1, wherein:

[0039] The first end of the resistor R1 and the first end of the capacitor C2 are connected to pin 17 of the TYPE-C interface detection chip U1, the second end of the resistor R1 and the first end of the resistor R2 are connected to pins 13, 14, and 15 of the TYPE-C interface detection chip U1, the second end of the resistor R2 and the second end of the capacitor C2 are connected to pin 18 of the TYPE-C interface detection chip U1 and to the positive electrode BAT+ of the battery, the first end of the capacitor C1 is connected to pin 21 of the TYPE-C interface detection chip U1 and to the positive electrode BAT+ of the battery, and the second end of the capacitor C1 is connected to pin 22 of the TYPE-C interface detection chip U1 and to ground GND;

[0040] The first end of the capacitor C6, the first end of the capacitor C7, the first end of the capacitor C8, the first end of the capacitor C9, and the first end of the capacitor C10 are connected to the pin 18 of the TYPE-C interface detection chip U1, and the second end of the capacitor C6, the second end of the capacitor C7, the second end of the capacitor C8, the second end of the capacitor C9, and the second end of the capacitor C10 are connected to the negative electrode GND- of the battery and to the ground GND;

[0041] A first end of the capacitor C3 is connected to pin 12 of the TYPE-C interface detection chip U1, a second end of the capacitor C3, a first end of the inductor L1, and a first end of the resistor R3 are connected to pins 10 and 11 of the TYPE-C interface detection chip U1, a second end of the inductor L1 and a first end of the resistor R4 are connected to pins 6 and 7 of the TYPE-C interface detection chip U1, a second end of the resistor R3 is connected to the first end of the capacitor C4, a second end of the resistor R4 is connected to the second end of the capacitor C5, and the second ends of the capacitors C4 and C5 are grounded GND;

[0042] The first end of the resistor R5 and the first end of the resistor R6 are connected to pins 1 and 2 of the TYPE-C interface detection chip U1, the second end of the resistor R6 and the first end of the capacitor C11 are connected to pin 53 of the TYPE-C interface detection chip U1, and the second end of the capacitor C11 and the second end of the resistor R5 are connected to pin 52 of the TYPE-C interface detection chip U1;

[0043] The first end of the capacitor C17, the first end of the capacitor C12, the first end of the capacitor C13, the first end of the capacitor C14, the first end of the capacitor C15, and the first end of the capacitor C16 are connected to the pin 51 of the TYPE-C interface detection chip U1, and the second end of the capacitor C17, the second end of the capacitor C12, the second end of the capacitor C13, the second end of the capacitor C14, the second end of the capacitor C15, and the second end of the capacitor C16 are grounded GND;

[0044] A first end of the capacitor C22 is connected to a pin 60 of the TYPE-C interface detection chip U1, and a second end of the capacitor C22 is connected to a pin 62 of the TYPE-C interface detection chip U1;

[0045] Pins 3, 4, 5, 8, 9, and 65 of the TYPE-C interface detection chip U1 are grounded GND.

[0046] In an optional implementation of this embodiment, the TYPE-C interface detection chip U1 is an OZ8355 chip.

[0047] Specifically, the TYPE-C interface detection chip U1 includes 65 pins.

[0048] In an optional implementation of this embodiment, the resistance value of the resistor R1 is 10R, the resistance value of the resistor R2 is 0.005R, the resistors R3 and R4 are NC resistors, that is, unconnected resistors, which are disconnected under normal conditions, the resistance value of the resistor R5 is 0.005R, and the resistance value of the resistor R6 is 10R.

[0049] In an optional implementation of this embodiment, the capacitance value of the capacitor C1 is 2.2μF, the capacitance value of the capacitor C2 is 1μF, the capacitance value of the capacitor C3 is 0.1μF, the capacitors C4, C5, C9, C10, C15, and C16 are NC capacitors, i.e., unconnected capacitors, which are disconnected under normal conditions; the capacitors C6 and C12 are polarized capacitors with a capacitance value of 100μF and a voltage value of 35V; the capacitance values of the capacitors C7, C8, C13, and C14 are 22μF and a voltage value of 35V; the capacitance value of the capacitor C11 is 470nF; the capacitance value of the capacitor C17 is 2.2μF; and the capacitance value of the capacitor C22 is 0.1μF.

[0050] In an optional implementation of this embodiment, the inductance value of the inductor L1 is 4.7 μH.

[0051] A TYPE-C interface detection module is set here to detect whether the device connected to the output end is a TYPE-C interface device.

[0052] In an optional implementation of this embodiment, the TYPE-C interface module further includes a TYPE-C interface input and output module, and the TYPE-C interface input and output module includes a TYPE-C interface input and output chip USBC1, a resistor R7, and a capacitor C18, wherein:

[0053] The first end of the resistor R7 and the first end of the capacitor C18 are connected to pins A9 and A4 of the TYPE-C interface input and output chip USBC1, and to pin 52 of the TYPE-C interface detection chip U1. The second ends of the resistor R7 and the capacitor C18 are grounded GND. Pins A1 and B12 of the TYPE-C interface input and output chip USBC1 are connected to the negative pole GND- of the battery and to the ground GND.

[0054] In an optional implementation of this embodiment, the TYPE-C interface input and output chip USBC1 includes pins A1, A4, A5, A6, A7, A8, A9, A12, B1, B4, B5, B6, B7, B8, B9, B12, and four pins 0, wherein pins A1, A12, B1, B12 and the four pins 0 are all grounded GND.

[0055] In an optional implementation of this embodiment, pin A9 of the TYPE-C interface input and output chip USBC1 is connected to the power bus VBUS.

[0056] In an optional implementation of this embodiment, the resistance value of the resistor R7 is 10K.

[0057] In an optional implementation of this embodiment, the capacitance value of the capacitor C18 is 0.1 μF.

[0058] A TYPE-C interface input and output module is set here to adapt to the TYPE-C interface device at the power output and output power to the TYPE-C interface device.

[0059] In an optional implementation of this embodiment, the TYPE-C interface module further includes a capacitor C20, a capacitor C21, a resistor R10, a capacitor C19, and a resistor R9, wherein:

[0060] The resistor R10 and the capacitor C19 are connected in parallel, and the capacitor C20, the capacitor C21, the resistor R10, the capacitor C19, and the resistor R9 are all grounded to GND.

[0061] In an optional implementation of this embodiment, the resistance value of the resistor R10 is 10K, the resistance value of the resistor R9 is 10K, the capacitance value of the capacitor C19 is 0.1 μF, and the capacitance values of the capacitors C20 and C21 are 2.2 μF.

[0062] The TYPE-C interface module is set here to be compatible with the fast charging of the TYPE-C interface, so as to achieve a higher charging current and effectively improve the efficiency of battery charging.

[0063] In an optional implementation of this embodiment, the charging switch module is used to switch on and off the multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface.

[0064] Specifically, such as Figure 3 As shown, Figure 3 The electrical schematic diagram of the charging switch module in the embodiment of the present invention is shown. The charging switch module includes a charging switch chip Q1, three resistors, two electrolytic capacitors, a transistor and a diode. The charging switch chip Q1 is an AO4435 chip.

[0065] A charging switch module is set here to control the on and off of the circuit, and has an anti-reverse connection function to prevent the battery from static backflow discharge, ensuring the safety and reliability of charging.

[0066] In an optional implementation of this embodiment, the charging detection module includes a charging voltage detection module, a charging current detection module and a battery voltage detection module. The charging voltage detection module, the charging current detection module and the battery voltage detection module are connected to the control module, the charging buck-boost module and the battery. The charging detection module is used to collect the operating parameters of the battery during the charging process and transmit them to the control module.

[0067] In an optional implementation of this embodiment, as Figure 4 As shown, Figure 4 The electrical schematic diagram of the charging voltage detection module in the embodiment of the present utility model is shown, which includes two resistors, a capacitor and a voltage stabilizing diode.

[0068] In an optional implementation of this embodiment, as Figure 5 As shown, Figure 5 The electrical schematic diagram of the charging current detection module in the embodiment of the present utility model is shown, which includes three resistors.

[0069] In an optional implementation of this embodiment, as Figure 6 As shown, Figure 6 The electrical schematic diagram of the battery voltage detection module in the embodiment of the present utility model is shown, which includes four resistors and a voltage-stabilizing diode.

[0070] In an optional implementation of this embodiment, the control module includes a main control module and an auxiliary control module, and the main control module is connected to the auxiliary control module.

[0071] In an optional implementation of this embodiment, as Figure 7 As shown, Figure 7 The electrical schematic diagram of the main control module in an embodiment of the present utility model is shown. The main control module includes a main control chip U2, a main control chip U3, four capacitors and two diodes. The main control chip U2 is an LM78L05-SOT89 control chip, and the main control chip U3 is an MS83F1402A single-chip microcomputer, or the main control chip U3 is an FT61F022A single-chip microcomputer. The main control module is used to calculate the optimal voltage suitable for the battery according to the charging parameters collected by the charging detection module, and control the charging buck-boost module to perform voltage regulation.

[0072] In an optional implementation of this embodiment, as Figure 8 As shown, Figure 8 The electrical schematic diagram of the auxiliary control module in an embodiment of the present utility model is shown. The auxiliary control module includes two auxiliary control circuits, each of which includes a transistor and two resistors. The auxiliary control module is used to assist the main control module in controlling the working process of the charging drive circuit.

[0073] In an optional implementation of this embodiment, the charging buck-boost module includes a charging boost module and a charging buck module, the input end of the charging boost module is connected to the charging input power supply, the output end of the charging boost module is connected to the input end of the charging buck module, and the output end of the charging buck module is connected to the charging switch module.

[0074] It should be noted that the charging boost module is used to boost the charging input power supply, and the charging buck module is used to reasonably buck the boosted charging input power supply to the optimal charging voltage of the battery.

[0075] In an optional implementation of this embodiment, the circuit further includes a voice module, which is connected to the control module and is used to emit a voice prompt tone.

[0076] In an optional implementation of this embodiment, the circuit further includes an indicator light module, which is connected to the control module and is used to emit light to guide an operator to perform operations.

[0077] In an optional implementation of this embodiment, the circuit further includes a key module, which is connected to the control module and is used for an operator to input key commands.

[0078] Working principle: The control module controls the circuit to work, and the charging buck-boost module boosts the charging input power of 10.5V-14.2V to 18V-20V, and then steps it down to the corresponding charging voltage output of 12V-15V;

[0079] After a period of time, the charging detection module collects the battery voltage, samples it, and transmits the sampled information to the control module. After comparison, the control module obtains the optimal charging voltage and outputs the corresponding voltage regulation signal to the charging buck-boost module. The charging buck-boost module steps down the boosted charging input power to the optimal charging voltage, which is about 1V higher than the battery voltage. The optimal charging voltage is fed back to the control module, and the control module outputs a high level to control the charging switch module to connect for charging.

[0080] After the charging switch module is turned on, the TYPE-C interface module determines whether the connected battery or device is a TYPE-C interface. If it is a TYPE-C interface, the TYPE-C interface input and output module is used to achieve compatibility with charging of the TYPE-C interface device.

[0081] In summary, the embodiment of the present invention provides a multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface. By setting a charging detection module to detect the charging parameters of the battery, and after the control module calculates the optimal charging voltage, the charging step-up and step-down module performs multi-stage voltage regulation operations, which solves the current problem in the automotive field that the battery charging drive circuit on the car cannot automatically perform step-up and step-down voltage regulation operations when there is an operating deviation and the battery is less than 12.7V and the full-charge voltage is greater than 14.2V. A charging switch module is set to control the on and off of the circuit and has an anti-reverse connection function to prevent the battery from being discharged in a static state, thereby ensuring the safety and reliability of charging. At the same time, a TYPE-C interface module is set to be compatible with the fast charging of the TYPE-C interface, so as to achieve a higher charging current and effectively improve the efficiency of battery charging.

[0082] The above is a detailed introduction to a multi-stage voltage-regulated charging drive circuit compatible with a TYPE-C interface provided by an embodiment of the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A multi-stage voltage-regulated charging drive circuit compatible with TYPE-C interface, characterized in that: The circuit includes a control module and a charging management module, wherein the control module is connected to the charging management module, an input end of the charging management module is connected to a charging input power supply, and an output end of the charging management module is connected to a battery; The charging management module includes a charging switch module, a charging detection module and a charging buck-boost module. The input end of the charging buck-boost module is connected to the charging input power supply, the output end of the charging buck-boost module is connected to the input end of the charging switch module, the output end of the charging switch module is connected to the battery, and the charging detection module is connected to the charging buck-boost module and the battery respectively. The charging management module also includes a TYPE-C interface module, which is connected to the charging switch module and the battery respectively.

2. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The TYPE-C interface module includes a TYPE-C interface detection module, which includes a TYPE-C interface detection chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C22, and an inductor L1, wherein: The first end of the resistor R1 and the first end of the capacitor C2 are connected to pin 17 of the TYPE-C interface detection chip U1, the second end of the resistor R1 and the first end of the resistor R2 are connected to pins 13, 14, and 15 of the TYPE-C interface detection chip U1, the second end of the resistor R2 and the second end of the capacitor C2 are connected to pin 18 of the TYPE-C interface detection chip U1 and to the positive electrode BAT+ of the battery, the first end of the capacitor C1 is connected to pin 21 of the TYPE-C interface detection chip U1 and to the positive electrode BAT+ of the battery, and the second end of the capacitor C1 is connected to pin 22 of the TYPE-C interface detection chip U1 and to ground GND; The first end of the capacitor C6, the first end of the capacitor C7, the first end of the capacitor C8, the first end of the capacitor C9, and the first end of the capacitor C10 are connected to the pin 18 of the TYPE-C interface detection chip U1, and the second end of the capacitor C6, the second end of the capacitor C7, the second end of the capacitor C8, the second end of the capacitor C9, and the second end of the capacitor C10 are connected to the negative electrode GND- of the battery and to the ground GND; A first end of the capacitor C3 is connected to pin 12 of the TYPE-C interface detection chip U1, a second end of the capacitor C3, a first end of the inductor L1, and a first end of the resistor R3 are connected to pins 10 and 11 of the TYPE-C interface detection chip U1, a second end of the inductor L1 and a first end of the resistor R4 are connected to pins 6 and 7 of the TYPE-C interface detection chip U1, a second end of the resistor R3 is connected to the first end of the capacitor C4, a second end of the resistor R4 is connected to the second end of the capacitor C5, and the second ends of the capacitors C4 and C5 are grounded GND; The first end of the resistor R5 and the first end of the resistor R6 are connected to pins 1 and 2 of the TYPE-C interface detection chip U1, the second end of the resistor R6 and the first end of the capacitor C11 are connected to pin 53 of the TYPE-C interface detection chip U1, and the second end of the capacitor C11 and the second end of the resistor R5 are connected to pin 52 of the TYPE-C interface detection chip U1; The first end of the capacitor C17, the first end of the capacitor C12, the first end of the capacitor C13, the first end of the capacitor C14, the first end of the capacitor C15, and the first end of the capacitor C16 are connected to the pin 51 of the TYPE-C interface detection chip U1, and the second end of the capacitor C17, the second end of the capacitor C12, the second end of the capacitor C13, the second end of the capacitor C14, the second end of the capacitor C15, and the second end of the capacitor C16 are grounded GND; A first end of the capacitor C22 is connected to a pin 60 of the TYPE-C interface detection chip U1 , and a second end of the capacitor C22 is connected to a pin 62 of the TYPE-C interface detection chip U1 .

3. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 2, characterized in that: The TYPE-C interface module also includes a TYPE-C interface input and output module, which includes a TYPE-C interface input and output chip USBC1, a resistor R7, and a capacitor C18, wherein: The first end of the resistor R7 and the first end of the capacitor C18 are connected to pins A9 and A4 of the TYPE-C interface input and output chip USBC1, and to pin 52 of the TYPE-C interface detection chip U1. The second ends of the resistor R7 and the capacitor C18 are grounded GND. Pins A1 and B12 of the TYPE-C interface input and output chip USBC1 are connected to the negative pole GND- of the battery and to the ground GND.

4. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The TYPE-C interface module further includes a capacitor C20, a capacitor C21, a resistor R10, a capacitor C19, and a resistor R9, wherein: The capacitor C20, the capacitor C21, the resistor R10, the capacitor C19, and the resistor R9 are all grounded to GND.

5. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The control module includes a main control module and an auxiliary control module, and the main control module is connected to the auxiliary control module.

6. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The charging detection module includes a charging voltage detection module, a charging current detection module and a battery voltage detection module, and the charging voltage detection module, the charging current detection module and the battery voltage detection module are connected to the control module, the charging buck-boost module and the battery.

7. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The circuit further includes a voice module, which is connected to the control module.

8. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The circuit further comprises an indicator light module, and the indicator light module is connected to the control module.

9. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The circuit further includes a key module, and the key module is connected to the control module.

10. The multi-stage voltage-regulated charging drive circuit compatible with the TYPE-C interface according to claim 1, characterized in that: The charging buck-boost module includes a charging boost module and a charging buck module. The input end of the charging boost module is connected to the charging input power supply, the output end of the charging boost module is connected to the input end of the charging buck module, and the output end of the charging buck module is connected to the charging switch module.

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