Multi-port power supply device control circuit capable of intelligently adjusting output power

Abstract

The invention provides a multi-port power supply device control circuit capable of intelligently adjusting output power, which comprises an input end of a first Type-C interface charging circuit, an input end of a second Type-C interface charging circuit and an input end of a USB-A interface charging circuit, the output end of the multi-port power supply device main control circuit is in control connection with the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit, the output end of the first Type-C interface charging circuit and the output end of the second Type-C interface charging circuit can be connected to Type-C interface electronic equipment, and the output end of the USB-A interface charging circuit can be connected to USB-A interface electronic equipment. The method has the beneficial effects that the charging power of all the power supply ports can be intelligently adjusted according to the power used by the charged electronic equipment and the charging power of other electronic equipment which is charged at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of control circuits, and in particular to a multi-port power supply control circuit capable of intelligently adjusting output power. Background Art

[0002] Power supplies, also called chargers, or electronic device adapters, are actually composed of a circuit that stabilizes the output voltage, plus necessary constant current, voltage limiting, time limiting and other control circuits. The output parameters marked on the original charger (referring to the line charger): for example, output 5.0V / 1A, output 5.0V / 1500mA-11200... refer to the relevant parameters of the internal voltage-stabilized power supply, which is mainly used to charge electronic devices. A multi-port power supply refers to a charger that can charge multiple electronic devices at the same time.

[0003] At present, electronic devices of different brands not only have different charging technologies, charging interfaces and charging times, but also different charging voltages or charging protocols for each device. Even if the same device has different power levels, their charging voltages will be different. This leads to the problem of wasting power and slowing down the charging speed for power supplies with multiple output ports. Existing multi-port power supplies generally have fixed port power, or the power supply voltage is reduced to a safe voltage of 5V when used simultaneously. Although some multi-port power supplies can switch PD from Type-C to reduce power, for electronic devices, it still cannot match their charging curves well, and there are still problems of wasting power and slowing down the charging speed, which still does not bring a good enough user experience. Summary of the invention

[0004] In order to solve the problems in the prior art, the present invention provides a multi-port power supply control circuit capable of intelligently adjusting output power. By arranging a multi-port power supply main control circuit, a first Type-C interface charging circuit, a second Type-C interface charging circuit and a USB-A interface charging circuit that cooperate with each other in the multi-port power supply control circuit capable of intelligently adjusting output power, it is possible to calculate according to the power used by the charged electronic device and the charging power of other electronic devices charged simultaneously, as well as the maximum power that the entire multi-port power supply can provide, so as to ensure fast charging of all power supply ports and optimize the charging power of each power supply port, greatly improve user experience, and solve the problem in the prior art that the power of the power supply ports of the multi-port power supply is constant, resulting in power waste and slow charging speed.

[0005] The present invention provides a multi-port power supply control circuit capable of intelligently adjusting output power, comprising a multi-port power supply main control circuit, a first Type-C interface charging circuit, a second Type-C interface charging circuit and a USB-A interface charging circuit, wherein the input end of the first Type-C interface charging circuit, the input end of the second Type-C interface charging circuit and the input end of the USB-A interface charging circuit can be connected to an AC power supply, and the output end of the multi-port power supply main control circuit is controlled and connected with the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit, the output end of the first Type-C interface charging circuit can be connected to a Type-C interface electronic device, the output end of the second Type-C interface charging circuit can be connected to a Type-C interface electronic device, and the output end of the USB-A interface charging circuit can be connected to a USB-A interface electronic device, and the multi-port power supply main control circuit can control the output power of the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit according to the electronic device status connected to the first Type-C interface charging circuit, the electronic device status connected to the second Type-C interface charging circuit and the electronic device status connected to the USB-A interface charging circuit.

[0006] The present invention is further improved, the multi-port power supply main control circuit is provided with a microprocessor U5, a resistor R8, a resistor R9 and a resistor R10, wherein the microprocessor U5 is provided with 6 pins, the 1st pin of the microprocessor U5 is connected to one end of the resistor R8, the input end of the first Type-C interface charging circuit, and the input end of the second Type-C interface charging circuit, the 6th pin of the microprocessor U5 is connected to one end of the resistor R9, the input end of the first Type-C interface charging circuit, and the input end of the second Type-C interface charging circuit, the 3rd pin of the microprocessor U5 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the input end of the USB-A interface charging circuit, the 5th pin of the microprocessor U5 is connected to the other end of the resistor R8 and the other end of the resistor R9, the 5th pin of the microprocessor U5 is also connected to the constant voltage power supply VDD, and the 2nd pin of the microprocessor U5 is grounded.

[0007] The present invention is further improved, the first Type-C interface charging circuit is provided with a Type-C charging management chip U1, a Type-C interface J1, an inductor L1, a resistor RX1, a resistor R4, a resistor R5, a resistor R6 and a resistor R7, wherein the Type-C charging management chip U1 is provided with 28 pins, the input end of the Type-C interface J1 is provided with 16 pins, the output end of the Type-C interface J1 can be connected to a Type-C interface electronic device, the 19th pin of the Type-C charging management chip U1 is connected to the AC power supply, the 18th pin of the Type-C charging management chip U1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to one end of the resistor RX1 and the 6th pin of the Type-C charging management chip U1, and the other end of the resistor RX1 is connected to the 6th pin of the Type-C charging management chip U1. The first end is connected to the 7th pin of the Type-C charging management chip U1 and the 3rd and 4th pins of the Type-C interface J1, the 6th pin of the Type-C interface J1 is connected to the 2nd pin of the Type-C charging management chip U1 through the resistor R4, the 8th pin of the Type-C interface J1 is connected to the 3rd pin of the Type-C charging management chip U1 through the resistor R5, the 9th pin of the Type-C interface J1 is connected to the 4th pin of the Type-C charging management chip U1 through the resistor R6, the 12th pin of the Type-C interface J1 is connected to the 1st pin of the Type-C charging management chip U1 through the resistor R7, and the 20th and 21st pins of the Type-C charging management chip U1 are respectively connected to the 1st and 6th pins of the microprocessor U5.

[0008] The present invention is further improved, and the first Type-C interface charging circuit is further provided with capacitor EC1, capacitor C1, capacitor C4 and capacitor C9, wherein one end of the capacitor EC1 is connected to the AC power supply, one end of the capacitor C1, one end of the capacitor C4, and the 19th pin of the Type-C charging management chip U1, one end of the capacitor C9 is connected to the 6th pin of the Type-C charging management chip U1, and the other end of the capacitor C9 is connected to the 7th pin of the Type-C charging management chip U1, and the other end of the capacitor EC1, the other end of the capacitor C1, and the other end of the capacitor C4 are grounded.

[0009] The present invention is further improved, the second Type-C interface charging circuit is provided with a Type-C charging management chip U2, a Type-C interface J2, an inductor L2 and a resistor RX2, wherein the Type-C charging management chip U2 is provided with 24 pins, the input end of the Type-C interface J2 is provided with 16 pins, the output end of the Type-C interface J2 can be connected to a Type-C interface electronic device, the 13th, 14th, 15th, 16th, and 17th pins of the Type-C charging management chip U2 are connected to the AC power supply, and the 2nd, 3rd, 4th, 5th, and 6th pins of the Type-C charging management chip U2 are connected to the AC power supply. The pin is connected to one end of the inductor L2, the other end of the inductor L2 is connected to one end of the resistor RX2 and the 1st pin of the Type-C charging management chip U2, the other end of the resistor RX2 is connected to the 24th pin of the Type-C charging management chip U2 and the 3rd and 4th pins of the Type-C interface J2, the 6th, 12th, 8th and 7th pins of the Type-C interface J2 are respectively connected to the 18th, 19th, 20th and 21st pins of the Type-C charging management chip U2, and the 8th and 9th pins of the Type-C charging management chip U2 are respectively connected to the 1st and 6th pins of the microprocessor U5.

[0010] The present invention is further improved, and the second Type-C interface charging circuit is further provided with a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22 and a capacitor C28, wherein one end of the capacitor C19 is connected to the AC power supply, one end of the capacitor C20, one end of the capacitor C21, one end of the capacitor C22, and the 13th, 14th, 15th, 16th, and 17th pins of the Type-C charging management chip U2, one end of the capacitor C28 is connected to the 1st pin of the Type-C charging management chip U2, and the other end of the capacitor C28 is connected to the 24th pin of the Type-C charging management chip U2, and the other end of the capacitor C19, the other end of the capacitor C20, the other end of the capacitor C21, and the other end of the capacitor C22 are grounded.

[0011] The present invention is further improved, the USB-A interface charging circuit is provided with a USB-A charging management chip U3, a resistor R13, a USB-A interface A1, an inductor L3, a field effect transistor Q5, a resistor R30 and a USB-A protocol chip U4, wherein the USB-A charging management chip U3 is provided with 16 pins, the USB-A protocol chip U4 is provided with 16 pins, the input end of the USB-A interface A1 is provided with 5 pins, the output end of the USB-A interface A1 can be connected to a USB-A interface electronic device, the first pin of the USB-A charging management chip U3 is connected to one end of the resistor R13, and the other end of the resistor R13 is connected to the AC power supply The third pin of the USB-A charging management chip U3 is connected to one end of the inductor L3, the other end of the inductor L3 is connected to the drain of the field effect tube Q5 and the 15th pin of the USB-A protocol chip U4, the gate of the field effect tube Q5 is connected to the 2nd pin of the USB-A protocol chip U4, the source of the field effect tube Q5 is connected to the 1st pin of the USB-A interface A1 and the 13th pin of the USB-A protocol chip U4, the 5th pin of the USB-A interface A1 is connected to one end of the resistor R30 and the other end of the resistor R10, and the other end of the resistor R30 is connected to the 8th pin of the USB-A protocol chip U4.

[0012] The present invention is further improved, and the USB-A interface charging circuit is further provided with a storage chip U6, a capacitor C44, a resistor RX4, a resistor R28 and a resistor R29, wherein the storage chip U6 is provided with 16 pins, and the 15th, 8th and 9th pins of the storage chip U6 are respectively connected to the 1st, 10th and 11th pins of the USB-A protocol chip U4, one end of the capacitor C44 is connected to the 8th pin of the USB-A protocol chip U4 and the other end of the resistor R30, one end of the resistor RX4 is connected to the 5th pin of the USB-A interface A1 and one end of the resistor R30, the other end of the capacitor C44 and the other end of the resistor RX4 are grounded, the 2nd pin of the USB-A interface A1 is connected to the 5th pin of the USB-A protocol chip U4 through the resistor R28, and the 4th pin of the USB-A interface A1 is connected to the 4th pin of the USB-A protocol chip U4 through the resistor R29.

[0013] The present invention is further improved, and the model of the microprocessor U5 is SOT23-6.

[0014] The present invention is further improved, the model of the Type-C charging management chip U1 is SW3516PB-C-65W-002, the model of the Type-C charging management chip U2 is SW3526D-R-001, and the model of the USB-A charging management chip U3 is NDP1415QF.

[0015] Compared with the prior art, the present invention has the following beneficial effects: a multi-port power supply control circuit capable of intelligently adjusting output power is provided, and a multi-port power supply main control circuit, a first Type-C interface charging circuit, a second Type-C interface charging circuit and a USB-A interface charging circuit that cooperate with each other are arranged in the multi-port power supply control circuit capable of intelligently adjusting output power, and the multi-port power supply main control circuit can control the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit according to the electronic device connected state of the first Type-C interface charging circuit, the electronic device connected state of the second Type-C interface charging circuit and the electronic device connected state of the USB-A interface charging circuit. The output power of the USB-C interface charging circuit and the USB-A interface charging circuit can be calculated based on the power used by the charged electronic device, the charging power of other electronic devices charged at the same time, and the maximum power that the entire multi-port power supply can provide, and the maximum charging power is adjusted to give priority to the electronic device with the lowest power and the highest power consumption. The circuit controls the fast charging protocol chip to output different powers through microprocessor U5 detection to ensure fast charging of all power ports and optimize the charging power of each power port, so as to maximize the charging management efficiency of the entire multi-port power supply, greatly improve the user experience, and solve the problem of constant power of the power supply ports of the multi-port power supply in the prior art, resulting in power waste and slow charging speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0017] Figure 1 It is a principle block diagram of a multi-port power supply control circuit capable of intelligently adjusting output power of the present invention;

[0018] Figure 2 A circuit diagram of a main control circuit of a multi-port power supply of the present invention;

[0019] Figure 3 This is a circuit diagram of a first Type-C interface charging circuit of the present invention;

[0020] Figure 4 This is a circuit diagram of the second Type-C interface charging circuit of the present invention;

[0021] Figure 5 It is a circuit diagram of the USB-A interface charging circuit of the present invention. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] like Figure 1-Figure 5As shown, the present invention provides a multi-port power supply control circuit capable of intelligently adjusting output power, comprising a multi-port power supply main control circuit, a first Type-C interface charging circuit, a second Type-C interface charging circuit and a USB-A interface charging circuit, the input end of the first Type-C interface charging circuit, the input end of the second Type-C interface charging circuit, and the input end of the USB-A interface charging circuit can be connected to an AC power supply, the output end of the multi-port power supply main control circuit is controlled and connected with the first Type-C interface charging circuit, the second Type-C interface charging circuit, and the USB-A interface charging circuit, the output end of the first Type-C interface charging circuit can be connected to a Type-C interface electronic device, the output end of the second Type-C interface charging circuit can be connected to a Type-C interface electronic device, and the output end of the USB-A interface charging circuit can be connected to a USB-A interface electronic device. In this embodiment, the main control circuit of the multi-port power supply can control the output power of the first Type-C interface charging circuit, the second Type-C interface charging circuit, and the USB-A interface charging circuit according to the status of the electronic device connected to the first Type-C interface charging circuit, the status of the electronic device connected to the second Type-C interface charging circuit, and the status of the electronic device connected to the USB-A interface charging circuit. It can calculate according to the power used by the charged electronic device and the charging power of other electronic devices charged at the same time, and the maximum power that the entire multi-port power supply can provide, and give priority to the maximum charging power to the electronic device with the lowest power and the highest power consumption. The circuit controls the fast charging protocol chip to output different powers through microprocessor U5 detection to ensure fast charging of all power ports and optimize the charging power of each power port, so as to maximize the charging management efficiency of the entire multi-port power supply and greatly improve the user experience.

[0026] like Figure 2As shown, the main control circuit of the multi-port power supply is provided with a microprocessor U5, a resistor R8, a resistor R9 and a resistor R10, wherein the model of the microprocessor U5 is SOT23-6, and the microprocessor U5 is provided with 6 pins, the 1st pin of the microprocessor U5 is connected to one end of the resistor R8, the input end of the first Type-C interface charging circuit, and the input end of the second Type-C interface charging circuit, the 6th pin of the microprocessor U5 is connected to one end of the resistor R9, the input end of the first Type-C interface charging circuit, and the input end of the second Type-C interface charging circuit, the 3rd pin of the microprocessor U5 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the input end of the USB-A interface charging circuit, the 5th pin of the microprocessor U5 is connected to the other end of the resistor R8 and the other end of the resistor R9, the 5th pin of the microprocessor U5 is also connected to the constant voltage power supply VDD, and the 2nd pin of the microprocessor U5 is grounded. In this embodiment, the multi-port power supply main control circuit is used to control the output power of the first Type-C interface charging circuit, the second Type-C interface charging circuit, and the USB-A interface charging circuit according to the status of the electronic device connected to the first Type-C interface charging circuit, the status of the electronic device connected to the second Type-C interface charging circuit, and the status of the electronic device connected to the USB-A interface charging circuit.

[0027] like Figure 3As shown, the first Type-C interface charging circuit is provided with a Type-C charging management chip U1, a Type-C interface J1, an inductor L1, a resistor RX1, a resistor R4, a resistor R5, a resistor R6 and a resistor R7, wherein the model of the Type-C charging management chip U1 is SW3516PB-C-65W-002, the Type-C charging management chip U1 is provided with 28 pins, the input end of the Type-C interface J1 is provided with 16 pins, the output end of the Type-C interface J1 can be connected to the Type-C interface electronic device, the 19th pin of the Type-C charging management chip U1 is connected to the AC power supply, the 18th pin of the Type-C charging management chip U1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to one end of the resistor RX1 and the 6th pin of the Type-C charging management chip U1, the other end of the resistor RX1 is connected to the 7th pin of the Type-C charging management chip U1 and the 3rd and 4th pins of the Type-C interface J1, and the 6th pin of the Type-C interface J1 is connected to the Type-C charging through the resistor R4 The first Type-C interface charging circuit is connected to the second pin of the Type-C charging management chip U1, the 8th pin of the Type-C interface J1 is connected to the 3rd pin of the Type-C charging management chip U1 through a resistor R5, the 9th pin of the Type-C interface J1 is connected to the 4th pin of the Type-C charging management chip U1 through a resistor R6, the 12th pin of the Type-C interface J1 is connected to the 1st pin of the Type-C charging management chip U1 through a resistor R7, and the 20th and 21st pins of the Type-C charging management chip U1 are respectively connected to the 1st and 6th pins of the microprocessor U5; the first Type-C interface charging circuit is also provided with a capacitor EC1, a capacitor C1, a capacitor C4 and a capacitor C9, one end of the capacitor EC1 is connected to the AC power supply, one end of the capacitor C1, one end of the capacitor C4, and the 19th pin of the Type-C charging management chip U1, one end of the capacitor C9 is connected to the 6th pin of the Type-C charging management chip U1, and the other end of the capacitor C9 is connected to the 7th pin of the Type-C charging management chip U1, and the other end of the capacitor EC1, the other end of the capacitor C1, and the other end of the capacitor C4 are grounded. In this embodiment, the first Type-C interface charging circuit is used to charge the Type-C interface electronic device, and can adjust the output power according to the control signal of the multi-port power supply main control circuit.

[0028] like Figure 4As shown, the second Type-C interface charging circuit is provided with a Type-C charging management chip U2, a Type-C interface J2, an inductor L2 and a resistor RX2, wherein the model of the Type-C charging management chip U2 is SW3526D-R-001, the Type-C charging management chip U2 is provided with 24 pins, the input end of the Type-C interface J2 is provided with 16 pins, the output end of the Type-C interface J2 can be connected to a Type-C interface electronic device, the 13th, 14th, 15th, 16th, and 17th pins of the Type-C charging management chip U2 are connected to the AC power supply, the 2nd, 3rd, 4th, 5th, and 6th pins of the Type-C charging management chip U2 are connected to one end of the inductor L2, the other end of the inductor L2 is connected to one end of the resistor RX2 and the 1st pin of the Type-C charging management chip U2, the other end of the resistor RX2 is connected to the 24th pin of the Type-C charging management chip U2, the 3rd and 4th pins of the Type-C interface J2 The pins 6, 12, 8, and 7 of the Type-C interface J2 are connected to the pins 18, 19, 20, and 21 of the Type-C charging management chip U2, respectively, and the pins 8 and 9 of the Type-C charging management chip U2 are connected to the pins 1 and 6 of the microprocessor U5, respectively; the second Type-C interface charging circuit is also provided with capacitors C19, C20, C21, C22, and C28, one end of the capacitor C19 is connected to the AC power supply, one end of the capacitor C20, one end of the capacitor C21, one end of the capacitor C22, and the pins 13, 14, 15, 16, and 17 of the Type-C charging management chip U2, one end of the capacitor C28 is connected to the pin 1 of the Type-C charging management chip U2, and the other end of the capacitor C28 is connected to the pin 24 of the Type-C charging management chip U2, and the other ends of the capacitor C19, the other ends of the capacitor C20, the other ends of the capacitor C21, and the other ends of the capacitor C22 are grounded. In this embodiment, the second Type-C interface charging circuit is used to charge the Type-C interface electronic device, and can adjust the output power according to the control signal of the multi-port power supply main control circuit.

[0029] like Figure 5As shown, the USB-A interface charging circuit is provided with a USB-A charging management chip U3, a resistor R13, a USB-A interface A1, an inductor L3, a field effect transistor Q5, a resistor R30 and a USB-A protocol chip U4, wherein the model of the USB-A charging management chip U3 is NDP1415QF, the USB-A charging management chip U3 is provided with 16 pins, the USB-A protocol chip U4 is provided with 16 pins, the input end of the USB-A interface A1 is provided with 5 pins, and the output end of the USB-A interface A1 can Connect to the USB-A interface electronic device, the first pin of the USB-A charging management chip U3 is connected to one end of the resistor R13, the other end of the resistor R13 is connected to the AC power supply, the third pin of the USB-A charging management chip U3 is connected to one end of the inductor L3, the other end of the inductor L3 is connected to the drain of the field effect transistor Q5 and the 15th pin of the USB-A protocol chip U4, the gate of the field effect transistor Q5 is connected to the 2nd pin of the USB-A protocol chip U4, the source of the field effect transistor Q5 is connected to the 1st pin of the USB-A interface A1, The 13th pin of the USB-A protocol chip U4 is connected, the 5th pin of the USB-A interface A1 is connected to one end of the resistor R30 and the other end of the resistor R10, and the other end of the resistor R30 is connected to the 8th pin of the USB-A protocol chip U4; the USB-A interface charging circuit is also provided with a storage chip U6, a capacitor C44, a resistor RX4, a resistor R28 and a resistor R29. The storage chip U6 has 16 pins. The 15th, 8th and 9th pins of the storage chip U6 are respectively connected to the 1st, 10th and 11th pins of the USB-A protocol chip U4. 1 pin, one end of capacitor C44 is connected to the 8th pin of USB-A protocol chip U4 and the other end of resistor R30, one end of resistor RX4 is connected to the 5th pin of USB-A interface A1 and one end of resistor R30, the other end of capacitor C44 and the other end of resistor RX4 are grounded, the 2nd pin of USB-A interface A1 is connected to the 5th pin of USB-A protocol chip U4 through resistor R28, and the 4th pin of USB-A interface A1 is connected to the 4th pin of USB-A protocol chip U4 through resistor R29. In this embodiment, the USB-A interface charging circuit is used to charge the USB-A interface electronic device, and can adjust the output power according to the control signal of the main control circuit of the multi-port power supply.

[0030] Working principle: When only the first Type-C interface charging circuit has an electronic device inserted for charging, the microprocessor U5 sends a signal to the Type-C charging management chip U1, and the Type-C charging management chip U1 gives the first Type-C interface charging circuit enough power of 100W to charge the Type-C interface electronic device; when the second Type-C interface charging circuit has an electronic device inserted for charging, the microprocessor U5 detects and calculates the power of the second Type-C interface charging circuit and allocates a certain amount of power to the second Type-C interface charging circuit according to charging needs, and reduces the corresponding power of the first Type-C interface charging circuit; when the USB-A interface charging circuit has an electronic device inserted for charging, the microprocessor U5 detects and calculates the power of the USB-A interface charging circuit and allocates a large power to the USB-A interface charging circuit according to charging needs, and reduces the corresponding power of the first Type-C interface charging circuit. When only the USB-A interface charging circuit has an electronic device inserted for charging, the microprocessor U5 will control the power output of the first Type-C interface charging circuit and the second Type-C interface charging circuit, and give all 120W power to the USB-A interface charging circuit to charge the USB-A interface electronic device. At this time, if an electronic device is inserted into the first Type-C interface charging circuit or the second Type-C interface charging circuit for charging, the microprocessor U5 detects and calculates the power of the first Type-C interface charging circuit and the second Type-C interface charging circuit, and allocates a certain amount of power to the first Type-C interface charging circuit or the second Type-C interface charging circuit according to the charging needs. In this process, the microprocessor U5 will calculate the charging power of each charging port in real time, and adjust the power of other ports according to the power of the electronic device charged by each port, so as to maximize the charging management efficiency of the entire multi-port power supply. When the USB-A interface charging circuit, the first Type-C interface charging circuit and the second Type-C interface charging circuit are charged at the same time, the microprocessor U5 controller will give priority to the USB-A interface charging circuit and the first Type-C interface charging circuit, and the second Type-C interface charging circuit is fixed at 20W. The first Type-C interface charging circuit and the USB-A interface charging circuit adjust the power output in real time. When the electronic device of a single port is close to full or has been fully charged, as the charging current decreases, the microprocessor U5 will calculate and give all the remaining power to other ports.

[0031] 1. When the first Type-C interface charging circuit is used alone, the multi-port power supply can choose to output 5V3A / 9V3A / 12V3A / 15V3A / 20V5A according to the device protocol;

[0032] 2. When the second Type-C interface charging circuit is used alone, the multi-port power supply can choose to output 5V3A / 9V2.22A / 12V1.67A according to the device protocol;

[0033] 3. When the USB-A interface charging circuit is used alone, the multi-port power supply can select the output of 5V4.5A / 9V4.5A / 12V4.5A / 15V4.5A / 20V6A according to the device protocol;

[0034] 4. If two or more devices are used, the multi-port power supply will adjust the output power of the first Type-C interface charging circuit, the second Type-C interface charging circuit, and the USB-A interface charging circuit in real time according to the different electronic devices connected, the different power levels of the electronic devices, and the different charging power of the electronic devices.

[0035] As can be seen from the above, the present invention provides a multi-port power supply control circuit capable of intelligently adjusting output power. By arranging a multi-port power supply main control circuit, a first Type-C interface charging circuit, a second Type-C interface charging circuit and a USB-A interface charging circuit that cooperate with each other in the multi-port power supply control circuit capable of intelligently adjusting output power, the multi-port power supply main control circuit can control the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit according to the state of the first Type-C interface charging circuit connected to the electronic device, the state of the second Type-C interface charging circuit connected to the electronic device and the state of the USB-A interface charging circuit connected to the electronic device. The output power of the charging circuit and the USB-A interface charging circuit can be calculated based on the power used by the charged electronic device and the charging power of other electronic devices charged at the same time, as well as the maximum power that the entire multi-port power supply can provide, and the maximum charging power is adjusted to give priority to the electronic device with the lowest power and the highest power consumption. The circuit controls the fast charging protocol chip to output different powers through microprocessor U5 detection to ensure fast charging of all power ports and optimize the charging power of each power port, so as to maximize the charging management efficiency of the entire multi-port power supply, greatly improve the user experience, and solve the problem of constant power of the power supply ports of the multi-port power supply in the prior art, resulting in power waste and slow charging speed.

[0036] The specific implementation modes described above are preferred implementation modes of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the specific implementation modes, and all equivalent changes made according to the present invention are within the protection scope of the present invention.

Claims

1. A multi-port power supply control circuit capable of intelligently adjusting output power, characterized in that: The invention comprises a main control circuit of a multi-port power supply, a first Type-C interface charging circuit, a second Type-C interface charging circuit and a USB-A interface charging circuit. The input end of the first Type-C interface charging circuit, the input end of the second Type-C interface charging circuit and the input end of the USB-A interface charging circuit can be connected to an AC power supply. The output end of the main control circuit of the multi-port power supply is controlled and connected with the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit. The output end of the first Type-C interface charging circuit can be connected to a Type-C interface electronic device, the output end of the second Type-C interface charging circuit can be connected to a Type-C interface electronic device, and the output end of the USB-A interface charging circuit can be connected to a USB-A interface electronic device. The main control circuit of the multi-port power supply can control the output power of the first Type-C interface charging circuit, the second Type-C interface charging circuit and the USB-A interface charging circuit according to the electronic device status connected to the first Type-C interface charging circuit, the electronic device status connected to the second Type-C interface charging circuit and the electronic device status connected to the USB-A interface charging circuit.

2. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 1, characterized in that: The multi-port power supply main control circuit is provided with a microprocessor U5, a resistor R8, a resistor R9 and a resistor R10, wherein the microprocessor U5 is provided with 6 pins, the 1st pin of the microprocessor U5 is connected to one end of the resistor R8, the input end of the first Type-C interface charging circuit, and the input end of the second Type-C interface charging circuit, the 6th pin of the microprocessor U5 is connected to one end of the resistor R9, the input end of the first Type-C interface charging circuit, and the input end of the second Type-C interface charging circuit, the 3rd pin of the microprocessor U5 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the input end of the USB-A interface charging circuit, the 5th pin of the microprocessor U5 is connected to the other end of the resistor R8 and the other end of the resistor R9, the 5th pin of the microprocessor U5 is also connected to the constant voltage power supply VDD, and the 2nd pin of the microprocessor U5 is grounded.

3. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 2, characterized in that: The first Type-C interface charging circuit is provided with a Type-C charging management chip U1, a Type-C interface J1, an inductor L1, a resistor RX1, a resistor R4, a resistor R5, a resistor R6 and a resistor R7, wherein the Type-C charging management chip U1 is provided with 28 pins, the input end of the Type-C interface J1 is provided with 16 pins, the output end of the Type-C interface J1 can be connected to a Type-C interface electronic device, the 19th pin of the Type-C charging management chip U1 is connected to the AC power supply, the 18th pin of the Type-C charging management chip U1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to one end of the resistor RX1 and the 6th pin of the Type-C charging management chip U1, and the other end of the resistor RX1 is connected to the T The 7th pin of the Type-C charging management chip U1 is connected to the 3rd and 4th pins of the Type-C interface J1, the 6th pin of the Type-C interface J1 is connected to the 2nd pin of the Type-C charging management chip U1 through the resistor R4, the 8th pin of the Type-C interface J1 is connected to the 3rd pin of the Type-C charging management chip U1 through the resistor R5, the 9th pin of the Type-C interface J1 is connected to the 4th pin of the Type-C charging management chip U1 through the resistor R6, the 12th pin of the Type-C interface J1 is connected to the 1st pin of the Type-C charging management chip U1 through the resistor R7, and the 20th and 21st pins of the Type-C charging management chip U1 are respectively connected to the 1st and 6th pins of the microprocessor U5.

4. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 3, characterized in that: The first Type-C interface charging circuit is also provided with capacitors EC1, C1, C4 and C9, wherein one end of the capacitor EC1 is connected to the AC power supply, one end of the capacitor C1, one end of the capacitor C4, and pin 19 of the Type-C charging management chip U1, one end of the capacitor C9 is connected to pin 6 of the Type-C charging management chip U1, the other end of the capacitor C9 is connected to pin 7 of the Type-C charging management chip U1, and the other end of the capacitor EC1, the other end of the capacitor C1, and the other end of the capacitor C4 are grounded.

5. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 4, characterized in that: The second Type-C interface charging circuit is provided with a Type-C charging management chip U2, a Type-C interface J2, an inductor L2 and a resistor RX2, wherein the Type-C charging management chip U2 is provided with 24 pins, the input end of the Type-C interface J2 is provided with 16 pins, the output end of the Type-C interface J2 can be connected to a Type-C interface electronic device, the 13th, 14th, 15th, 16th, and 17th pins of the Type-C charging management chip U2 are connected to the AC power supply, and the 2nd, 3rd, 4th, 5th, and 6th pins of the Type-C charging management chip U2 are connected to the AC power supply. One end of the inductor L2 is connected, the other end of the inductor L2 is connected to one end of the resistor RX2 and the 1st pin of the Type-C charging management chip U2, the other end of the resistor RX2 is connected to the 24th pin of the Type-C charging management chip U2 and the 3rd and 4th pins of the Type-C interface J2, the 6th, 12th, 8th and 7th pins of the Type-C interface J2 are respectively connected to the 18th, 19th, 20th and 21st pins of the Type-C charging management chip U2, and the 8th and 9th pins of the Type-C charging management chip U2 are respectively connected to the 1st and 6th pins of the microprocessor U5.

6. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 5, characterized in that: The second Type-C interface charging circuit is further provided with capacitors C19, C20, C21, C22 and C28, wherein one end of the capacitor C19 is connected to the AC power supply, one end of the capacitor C20, one end of the capacitor C21, one end of the capacitor C22, and the 13th, 14th, 15th, 16th and 17th pins of the Type-C charging management chip U2, one end of the capacitor C28 is connected to the 1st pin of the Type-C charging management chip U2, the other end of the capacitor C28 is connected to the 24th pin of the Type-C charging management chip U2, and the other end of the capacitor C19, the other end of the capacitor C20, the other end of the capacitor C21 and the other end of the capacitor C22 are grounded.

7. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 6, characterized in that: The USB-A interface charging circuit is provided with a USB-A charging management chip U3, a resistor R13, a USB-A interface A1, an inductor L3, a field effect transistor Q5, a resistor R30 and a USB-A protocol chip U4, wherein the USB-A charging management chip U3 is provided with 16 pins, the USB-A protocol chip U4 is provided with 16 pins, the input end of the USB-A interface A1 is provided with 5 pins, the output end of the USB-A interface A1 can be connected to a USB-A interface electronic device, the first pin of the USB-A charging management chip U3 is connected to one end of the resistor R13, the other end of the resistor R13 is connected to the AC power supply, and the U The third pin of the SB-A charging management chip U3 is connected to one end of the inductor L3, the other end of the inductor L3 is connected to the drain of the field effect transistor Q5 and the 15th pin of the USB-A protocol chip U4, the gate of the field effect transistor Q5 is connected to the 2nd pin of the USB-A protocol chip U4, the source of the field effect transistor Q5 is connected to the 1st pin of the USB-A interface A1 and the 13th pin of the USB-A protocol chip U4, the 5th pin of the USB-A interface A1 is connected to one end of the resistor R30 and the other end of the resistor R10, and the other end of the resistor R30 is connected to the 8th pin of the USB-A protocol chip U4.

8. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 7, characterized in that: The USB-A interface charging circuit is also provided with a storage chip U6, a capacitor C44, a resistor RX4, a resistor R28 and a resistor R29, wherein the storage chip U6 is provided with 16 pins, and the 15th, 8th and 9th pins of the storage chip U6 are respectively connected to the 1st, 10th and 11th pins of the USB-A protocol chip U4, one end of the capacitor C44 is connected to the 8th pin of the USB-A protocol chip U4 and the other end of the resistor R30, one end of the resistor RX4 is connected to the 5th pin of the USB-A interface A1 and one end of the resistor R30, the other end of the capacitor C44 and the other end of the resistor RX4 are grounded, the 2nd pin of the USB-A interface A1 is connected to the 5th pin of the USB-A protocol chip U4 through the resistor R28, and the 4th pin of the USB-A interface A1 is connected to the 4th pin of the USB-A protocol chip U4 through the resistor R29.

9. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 8, characterized in that: The model of the microprocessor U5 is SOT23-6.

10. The multi-port power supply control circuit capable of intelligently adjusting output power according to claim 9, characterized in that: The model of the Type-C charging management chip U1 is SW3516PB-C-65W-002, the model of the Type-C charging management chip U2 is SW3526D-R-001, and the model of the USB-A charging management chip U3 is NDP1415QF.

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