Adapter for converting direct-current power supply into Type-C output

Abstract

The utility model provides an adapter for converting a direct current power supply into Type-C output, comprising an MCU control module, the MCU control module is respectively connected with an input module, a display module, a voltage conversion control module and an output module, the MCU control module detects that the power supply input of the input module is between direct current 30V and 68V, controls the power supply input to be converted into Type-C voltage and outputs the Type-C voltage to the output module, and the output module outputs the Type-C voltage to the output module. And the MCU control module controls the output module to communicate with other electronic equipment for charging according to a preset communication protocol. According to the adapter for converting the DC power supply into the Type-C output, a lithium battery electric bicycle charger can be converted into a mobile phone or notebook computer charger, so that a user can conveniently charge a mobile phone or a notebook computer while charging the lithium battery of the electric bicycle; by arranging the display screen, the current output voltage, the current output current, the current input power, the current output voltage, the current output current and the current output power can be displayed, and a user can visually see the current charging state.

Description

Technical Field

[0001] The utility model relates to the field of charging conversion heads, and in particular to an adapter for converting a DC power supply to a Type-C output. Background Art

[0002] With the increasing popularity of lithium-ion battery-powered motorcycles, a significant number of people own them. Every day, the battery needs to be charged, and people often return home after a busy day. Being able to simultaneously charge a mobile phone or laptop while charging a motorcycle's lithium-ion battery would be a very convenient feature.

[0003] Especially now, many communities do not allow motorcycles or motorcycle batteries to be brought indoors for charging. They must be charged in a centralized and controllable area of ​​the community. Therefore, motorcycle chargers are carried with the vehicle. In addition, it often happens that charging is needed in the middle of a ride, so the charger is an indispensable vehicle equipment.

[0004] Many mobile phones, laptops, or tablets may run out of power when used outdoors and require charging. Different chargers for electric bicycles, batteries, lithium batteries, scooters, and power batteries have outputs ranging from 30Vdc to 68Vdc. Lithium battery chargers already use DC outputs, so the adapter from a motorcycle lithium battery charger to a Type-C adapter only requires DC-DC step-down conversion and does not require high-voltage isolation to meet safety regulations. This makes the adapter relatively small and inexpensive. Providing multiple USB-A connectors to simultaneously charge multiple mobile phones, tablets, and laptops would be a very convenient design.

[0005] The problem is that the charging voltage of electric motorcycles ranges from 30Vdc to 68Vdc, which is an extremely wide voltage range. Therefore, a device that allows a variety of different output devices such as electric bicycle chargers, battery chargers, lithium battery chargers, balance car chargers, scooter chargers, power battery chargers, etc. to provide Type-C port output through the same adapter to charge mobile phones and laptops, and support multiple protocols such as Programmable Power Supply (PPS) protocol, Power Delivery (PD) protocol, Quick Charge (QC) protocol, Adaptive Fast Charge (AFC) protocol, Fast Charging Protocol (FCP) protocol, Super Charge Protocol (SCP) protocol, Super Fast Charging Protocol (PE) protocol, and Super Fast Charging Protocol (SFCP) protocol has become an important issue that needs to be addressed. Utility Model Content

[0006] The purpose of the present utility model is to provide a conversion head for converting a lithium battery charger to charge a mobile phone / laptop computer, specifically providing an adapter for converting a DC power supply to a Type-C output, so as to solve the problems raised in the above background technology.

[0007] The utility model provides a DC power supply to Type-C output adapter, including a charger connector, an input module, a display module, a voltage conversion control module, an MCU control module, an output module, and at least one Type-C interface;

[0008] The MCU control module is connected to the input module, the display module, the voltage conversion control module, and the output module respectively. The MCU control module is connected to the charger connector through the input module, and the MCU control module is connected to the Type-C interface through the output module. The input module is connected to the voltage conversion control module, and the voltage conversion control module is connected to the output module;

[0009] When the MCU control module detects that the power input of the input module is between DC 30V and 68V, it controls the voltage conversion control module to convert the power input between DC 30V and 68V into a Type-C voltage and output it to the output module. The MCU control module controls the output module to communicate with other electronic devices for charging using a preset communication protocol.

[0010] Optionally, the input module includes two resistors connected in series, a first resistor R1 of the two resistors connected in series is connected to the charger connector, a second resistor R2 of the two resistors connected in series is connected to ground, and a connection point between the first resistor R1 and the second resistor R2 is connected to the MCU control module. The power input of the input module is input into the MCU control module via a voltage divider between the first resistor R1 and the second resistor R2. The MCU control module includes an analog-to-digital converter, which converts the voltage divider between the first resistor R1 and the second resistor R2 into a digital signal to obtain a power input voltage. When the MCU control module detects that the power input voltage of the charger connector is between 30 V and 68 V DC, it sends an input power normal signal to the voltage conversion control module. The voltage conversion control module uses the input power normal signal to control the voltage conversion control module to start converting the input power into a Type-C voltage output. When the MCU control module detects that the power input voltage of the charger connector is not between 30 V and 68 V DC, it sends an input abnormal signal to the voltage conversion control module, and the MCU control module shuts down the voltage conversion control module.

[0011] Optionally, the voltage conversion control module includes a buck controller, an energy storage inductor, an upper MOS transistor, a lower MOS transistor, and an output current detection resistor. The buck controller is respectively connected to the energy storage inductor, the upper MOS transistor, the lower MOS transistor, and both ends of the output current detection resistor. One end of the output current detection resistor is connected to the energy storage inductor. The output current flows into the output current detection resistor through the energy storage inductor. The voltage at one end of the connection point between the output current detection resistor and the energy storage inductor is a high output current detection voltage, and the other end of the output current detection resistor is a low output current detection voltage. The buck controller includes an analog-to-digital converter, and the analog-to-digital converter included in the buck controller converts the voltage difference between the two ends of the output current detection resistor to the value of the high output current detection voltage. The analog-to-digital converter included in the buck controller converts the low output current detection voltage into a digital signal to obtain an output voltage digital signal. The buck controller controls the upper MOS transistor and the lower MOS transistor with a PWM signal. When the upper MOS transistor is turned on, the lower MOS transistor is turned off. The input voltage is transmitted to the output module through the upper MOS transistor and the energy storage inductor. At the same time, the energy storage inductor stores energy. When the upper MOS transistor is turned off and the lower MOS transistor is turned on, the energy in the energy storage inductor is released to the output module through the lower MOS transistor. The buck controller controls the PWM signal duty cycle with the output voltage so that the output voltage is the Type-C power supply output voltage.

[0012] Optionally, the input module further includes an input current detection resistor and a current detection unit, one end of the input current detection resistor is connected to the charger connector, the other end of the input current detection resistor is connected to the buck controller, the two ends of the input current detection resistor are respectively connected to the current detection unit, the current detection unit is connected to the MCU control module, the input current flows from the charger connector through the input current detection resistor to the buck controller, the input current is converted into a current detection voltage through the input current detection resistor, the voltage across the input current detection resistor is input to the current detection unit, the current detection unit then outputs the voltage across the input current detection resistor to the MCU control module by differential amplification, the analog-to-digital converter of the MCU control module converts the input current detection voltage into a digital signal to obtain the input current magnitude, the MCU control module calculates the input power supply voltage and the input current to obtain the input power, and the MCU control module displays the input voltage, the input current, or the input power on the display module.

[0013] Optionally, the buck controller and the MCU control module are connected to each other. 2 C serial communication protocol, the buck controller converts the digital signals of the output voltage and the output current into I 2 The output voltage and the output current are calculated by the MCU control module and the output power is displayed on the display module.

[0014] Optionally, the charger connector is a 7.9mm*5.5mm connector, with a hollow magnetic ring with a width of more than 2.5mm wrapped on the outside to identify the original charging cable.

[0015] Optionally, the input module includes a Hall effect switch. There is a magnetic ring on the original charging cable. When the original charging cable is inserted into the charger connector, the Hall effect switch senses the magnetic ring of the original charging cable and outputs the potential sensed by the original cable. Otherwise, the output indicates that the potential of the original cable is not sensed.

[0016] Optionally, the output module is compatible with one or more fast charging protocols including programmable power supply (PPS) protocol, power delivery (PD) protocol, quick charge (QC) protocol, adaptive fast charge (AFC) protocol, fast charging (FCP) protocol, super charge protocol (SCP) protocol, super fast charge (Pump Express, PE) protocol, and super fast charge (SFCP) protocol.

[0017] Optionally, the voltage conversion control module can support one or more fast charging protocols including programmable power supply (PPS) protocol, power delivery (PD) protocol, quick charge (QC) protocol, adaptive fast charge (AFC) protocol, fast charging (FCP) protocol, super charge protocol (SCP) protocol, super fast charge (Pump Express, PE) protocol, and super fast charging (SFCP) protocol.

[0018] Optionally, the voltage conversion control module has overvoltage protection, overcurrent protection, and short circuit protection functions.

[0019] The utility model provides a DC power supply to Type-C output adapter, comprising a charger connector, an input module, a display module, a voltage conversion control module, an MCU control module, an output module, and at least one Type-C interface. The MCU control module is connected to the input module, the display module, the voltage conversion control module, and the output module respectively. The MCU control module is connected to the charger connector via the input module, the MCU control module is connected to the Type-C interface via the output module, the input module is connected to the voltage conversion control module, and the voltage conversion control module is connected to the output module.

[0020] When the MCU control module detects that the power input of the input module is between 30V and 68V DC, it controls the voltage conversion control module to convert the power input between 30V and 68V DC into a Type-C voltage output to the output module. The MCU control module controls the output module to communicate and charge with other electronic devices using a preset communication protocol. The DC power supply to Type-C output adapter provided by the utility model can convert a lithium battery motorcycle charger into a mobile phone or laptop charger, making it convenient for users to charge their mobile phones or laptops while charging their motorcycle lithium batteries. By setting a display screen, the current output voltage, output current, input power, output voltage, output current, and output power can be displayed, so that users can intuitively see the current charging status. By setting a waterproof design and a miniaturized design, it can be placed in a lithium battery motorcycle storage bag for easy carrying. It can be converted into a Type-C port output to charge mobile phones, tablets, and laptops. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a DC power to Type-C output adapter provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram showing the principle of a DC power to Type-C output adapter provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the circuit connection structure of the voltage conversion control module and the output module of the DC power to Type-C output adapter provided in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the circuit connection structure of the input module, MCU control module, and display module of the DC power to Type-C output adapter provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the 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.

[0026] The utility model relates to a conversion head for converting a lithium battery charger into a mobile phone / laptop computer for charging. The front end of the conversion head is provided with a round jack, which can be inserted into the output terminal of a qualified lithium battery charger for a lithium battery motorcycle. A microcontroller unit (MCU) is provided inside the conversion head, and the MCU can identify the output voltage of the lithium battery charger of the lithium battery motorcycle. Only qualified chargers allow the conversion head to operate normally. If the charger is not qualified, a display screen above the conversion head will display a message such as abnormal operation to inform the user. A USB-A female socket is provided on the side of the conversion head body, and the USB-A female socket can charge other devices. The rear end of the conversion head body is provided with a mobile phone / laptop computer charging connector with a length of more than 10 cm. The mobile phone / laptop computer charging connector can be replaced with a charging connector based on different mobile phones or laptops. The conversion head body has a waterproof design and a miniaturized design and can be placed in a lithium battery motorcycle storage bag. A display screen is provided on the exterior of the conversion head body, which can display the current output voltage, output current, input power, output voltage, output current and output power, so that the user can intuitively see the current charging status.

[0027] In order to realize the conversion of a lithium battery motorcycle charger into a mobile phone or laptop charger, so that users can charge their mobile phones or laptops at the same time as the lithium battery of the motorcycle; by setting a display screen, the current output voltage, output current, input power, output voltage, output current and output power can be displayed, so that users can intuitively see the current charging status; by setting a waterproof design and a miniaturized design, it can be placed in a lithium battery motorcycle storage bag for easy carrying; it can be converted into a Type-C port output to charge mobile phones, tablets and laptops. The utility model provides the following technical solutions:

[0028] like Figure 1 As shown, a DC power supply to Type-C output adapter 100 is provided, comprising a charger connector 110, at least one Type-A interface 120, at least one Type-C interface 140, a Type-C connection line 130 connecting the Type-C interface 140 and the adapter 100, and a display screen 150. Figure 2 As shown, Figure 2The schematic diagram of the principle of a DC power supply to Type-C output adapter provided by the embodiment of the present invention is as follows: the DC power supply to Type-C output adapter 100 includes an input module 210, a voltage conversion control module 220, an output module 230, an MCU control module 240, and a display module 250. The MCU control module 240 is connected to the input module 210, the display module 250, the voltage conversion control module 220, and the output module 230 respectively. The MCU control module 240 communicates with the input module 210 through the display module 250. The charger connector 110 is connected, the MCU control module 240 is connected to the Type-C interface 140 through the output module 230 via the Type-C connection line 130, the input module 210 is connected to the voltage conversion control module 220, and the voltage conversion control module 220 is connected to the output module 230. The charger connector 110 is a connector connected to an electric bicycle charger, a battery charger, a lithium battery charger, a balance car charger, and a scooter charger. The input power supply of the input module 210 is a wide power input of DC 30V to 68V.

[0029] Optionally, the voltage conversion control module 220 further includes a buck controller, which is SW3516, a highly integrated fast charging car charger chip that supports fast charging output of any port of USB A port and Type_C port, and supports independent current limiting of dual ports.

[0030] It integrates a 5A high-efficiency synchronous buck converter, supports multiple fast charging protocols such as PPS / PD / QC / AFC / FCP / SCP / PE / SFCP / low-voltage direct charging, CC / CV mode, and dual-port management logic. Only a small number of peripheral devices are needed to form a complete high-performance multi-fast charging protocol car charging solution. Among them, CC mode refers to constant current mode, and CV mode refers to constant voltage mode. In this embodiment, the DC 30V to 68V wide power input can be converted into a Type-C voltage output to the output module 230, and the MCU control module 240 controls the output module 230 to use PPS / PD / QC / AFC / FCP / SCP / PE / SFCP multiple protocols to communicate with mobile phones, tablets or laptop computers in charging mode.

[0031] Optionally, the input module includes two resistors connected in series, a first resistor R1 of the two resistors in series is connected to the charger connector 110, a second resistor R2 of the two resistors in series is connected to the ground, a connection point between the first resistor R1 and the second resistor R2 is connected to the MCU control module 240, and a power input of the input module 210 is input to the MCU control module 240 through the divided voltage between the first resistor R1 and the second resistor R2. The MCU control module 240 includes an analog-to-digital converter, and the analog-to-digital converter included in the MCU control module 240 converts the divided voltage between the first resistor R1 and the second resistor R2 into a digital signal to obtain When the MCU control module 240 detects that the power input voltage of the charger connector 100 is between 30 V and 68 V DC, it sends an input power normal signal to the voltage conversion control module 220. The voltage conversion control module 220 uses the input power normal signal to control the voltage conversion control module 220 to start converting the input power into a Type-C voltage output. When the MCU control module 240 detects that the power input voltage of the charger connector 100 is not between 30 V and 68 V DC, it sends an input abnormal signal to the voltage conversion control module 220. The MCU control module 240 shuts down the voltage conversion control module 220.

[0032] like Figure 3 As shown, the circuit connection structure diagram of the voltage conversion control module and the output module of the DC power to Type-C output adapter provided by the embodiment of the present invention, as well as Figure 4 As shown, Figure 4 This is a schematic diagram of the circuit connection structure of the input module, MCU control module, and display module of the DC power to Type-C output adapter provided in an embodiment of the present invention. Figure 3 and Figure 4 for Figure 2The circuit connection schematic diagram shows that the input module 210 further has two resistors R1 and R2 connected in series. The first resistor R1 is connected to the input DC_IN of the input connector 110, and the second resistor R2 is connected to the ground. The connection point VIN_ADC of the first resistor R1 and the second resistor R2 is connected to the MCU control module 240. The divided voltage of the input voltage between the first resistor R1 and the second resistor R2 is input to the 15th pin of the MCU control module 240. The MCU control module 240 has an analog-to-digital converter that converts the divided voltage between the first resistor R1 and the second resistor R2 into a digital signal to obtain the input power supply voltage. When the MCU control module 240 detects that the input power supply voltage of the charger connector 100 is a DC input of 30V to 68V, it sends an input power normal signal high voltage from pin 1EN to the Q5 NMOS gate. The Q5 drain is connected to the Q4 PMOS gate. When the Q5 NMOS gate is high voltage, Q5 is turned on and Q4 is turned on. The PMOS gate is grounded, Q4 is turned on, and the DC_IN input is connected to the input current sense resistor R8 through Q4. The output VIN is then connected to pin 19VIN2 of the buck controller 222 in the voltage conversion control module 220. The voltage conversion control module 220 begins converting the input power into a Type-C voltage output. When the MCU control module 240 detects that the input power of the charger connector 100 is not within the DC range of 30V to 68V, it sends an input abnormal signal EN low to the gate of Q5. When the Q5 NMOS gate is low, Q5 is turned off, and the Q4 PMOS is also turned off, disconnecting the input power DC_IN from the entire circuit.

[0033] Optionally, the voltage conversion control module 220 includes a buck controller 222, an energy storage inductor L1, an upper MOS transistor Q1, a lower MOS transistor Q3, and an output current detection resistor R9. The buck controller 222 is respectively connected to the energy storage inductor L1, the upper MOS transistor Q1, the lower MOS transistor Q3, and the two ends of the output current detection resistor R9. One end of the output current detection resistor R9 is connected to the energy storage inductor L1. The output current flows into the output current detection resistor R9 through the energy storage inductor L1. The voltage at one end of the connection point between the output current detection resistor R9 and the energy storage inductor L1 is a high output current detection voltage, and the other end of the output current detection resistor R9 is a low output current detection voltage. The buck controller 222 includes an analog-to-digital converter, and the analog-to-digital converter included in the buck controller 222 converts the output current detection resistor R9 into a high output current detection voltage. The voltage difference between the two ends is converted into a digital signal to obtain a digital signal of the output current size. The analog-to-digital converter included in the buck controller 222 converts the low output current detection voltage into a digital signal to obtain a digital signal of the output voltage size. The buck controller 222 controls the upper MOS transistor Q1 and the lower MOS transistor Q3 with a PWM signal. When the upper MOS transistor Q1 is turned on, the lower MOS transistor Q3 is turned off. The input voltage is transmitted to the output module 230 through the upper MOS transistor Q1 and the energy storage inductor L1. At the same time, the energy storage inductor L1 stores energy. When the upper MOS transistor Q1 is turned off and the lower MOS transistor Q3 is turned on, the energy in the energy storage inductor L1 is released to the output module 230 through the lower MOS transistor Q3. The buck controller 222 controls the duty cycle of the PWM signal with the output voltage so that the output voltage is the output voltage of the Type-C power supply.

[0034] Figure 3The voltage conversion control module 220 further includes an energy storage inductor L1, an upper MOS transistor Q1, a lower MOS transistor Q3, and an output current detection resistor R9. The buck controller 222 is respectively connected to the energy storage inductor L1, the upper MOS transistor Q1, the lower MOS transistor Q3, and the output current detection resistor R9. One end of the output current detection resistor R9 is connected to the energy storage inductor L1. The output current flows into the output current detection resistor R9 through the energy storage inductor L1. The voltage at the junction of the output current detection resistor and the energy storage inductor is a high output current detection voltage CSPC2, and the other end is a low output current detection voltage CSNC2. The buck controller 222 has an analog-to-digital converter. The analog-to-digital converter of the buck controller converts the voltage difference between the two ends of the output current detection resistor into a digital The analog-to-digital converter of the buck controller converts the low output current detection voltage CSNC2 into a digital signal to obtain a digital signal of the output voltage. The buck controller 222 controls the upper MOS transistor Q1 and the lower MOS transistor Q3 with a PWM signal. When the upper MOS transistor Q1 is turned on, the lower MOS transistor Q3 is turned off. The input voltage is transmitted to the output module 230 through the upper MOS transistor Q1 and the energy storage inductor L1. At the same time, the inductor L1 stores energy. When the upper MOS transistor Q1 is turned off and the lower MOS transistor Q3 is turned on, the energy in the energy storage inductor L1 is released to the output module through the lower MOS transistor Q3. The buck controller 222 controls the duty cycle of the PWM signal based on the read output voltage so that the output voltage is the Type-C power supply output voltage.

[0035] Optionally, the input module further includes an input current detection resistor R8 and a current detection unit U6, one end of the input current detection resistor R8 is connected to the charger connector 100, the other end of the input current detection resistor R8 is connected to the buck controller 222, both ends of the input current detection resistor R8 are connected to the current detection unit U6, the current detection unit U6 is connected to the MCU control module 240, the input current flows from the charger connector 100 through the input current detection resistor R8 to the buck controller 222, and the input current is converted into a current detection current through the input current detection resistor R8. The voltage is measured, and the voltage across the input current detection resistor R8 is input to the current detection unit U6. The current detection unit U6 then outputs the voltage across the input current detection resistor R8 to the MCU control module 240 through differential amplification. The analog-to-digital converter of the MCU control module 240 converts the input current detection voltage into a digital signal to obtain the input current magnitude. The MCU control module 240 calculates the input power supply voltage and the input current to obtain the input power. The MCU control module 240 displays the input voltage, the input current, or the input power on the display module 250.

[0036] like Figure 4 The input module 210 includes an input current detection resistor R8 and a current detection unit U6. One end of the current detection resistor R8 is connected to Q4 and the charger connector 100, and the other end is connected to the buck controller 222. The two ends of the input current detection resistor R8 are respectively connected to the current detection unit U6. The current detection unit U6 is connected to the MCU control module 240. The input current flows from the input connector (charger connector 100) through Q4 into the current detection resistor R8, and then flows into the buck controller 222. The input current is converted into a current detection voltage by the current detection resistor R8, and then converted into the output voltage IIN of pin 1 by the current detection unit U6 and sent to the MCU control module. The analog-to-digital converter of the MCU control module converts IIN into a digital signal to obtain the input current magnitude. The MCU control module 240 calculates the input power by the input power supply voltage and the input current to obtain the input power. The MCU control module 240 displays the input voltage, the input current, or the input power on the display module 250.

[0037] Figure 3 The buck controller 222 and Figure 4 The MCU control module is based on I 2 The C signal SDA is connected to SCK, and the buck controller 222 converts the output voltage and output current digital signals into I2 C connection is sent to the MCU control module 240, and the MCU control module 240 calculates the output voltage and the output current to obtain the output power and displays it on the display screen. 2 C (Inter-Integrated Circuit) bus is an important serial communication protocol.

[0038] The charger connector is 7.9mm*5.5mm, with a hollow magnetic ring with a width of more than 2.5mm on the outside. It is used to identify the original charging cable. Generally, the original charging cable will have a magnetic ring near the connector to suppress electromagnetic conduction and radiation. Figure 4 The input module 210 includes a Hall effect switch U5. When the original charging cable plug is inserted into the charger connector 100, the Hall effect switch U5 senses the magnetic ring of the original charging cable and outputs the Hall voltage H_ADC sensing the potential of the original cable as a high potential. Otherwise, the output is a low potential when the potential of the original cable is not sensed.

[0039] The output module is compatible with QC2.0 / 3.0, AFC, FCP, SCP, PE1.0 / 2.0, and PD2.0 / 3.0 protocols, and the voltage conversion control module has overvoltage protection, overcurrent protection, and short circuit protection functions.

[0040] The beneficial effects of the present invention are that, by providing an adapter, the lithium battery motorcycle charger can be converted into a mobile phone or laptop computer charger, so that users can charge their mobile phones or laptop computers at the same time as the lithium battery of the motorcycle; by providing a display screen, the current output voltage, output current, input power, output voltage, output current and output power can be displayed, so that users can intuitively see the current charging status; by providing a waterproof design and a miniaturized design, it can be put into a lithium battery motorcycle storage bag for easy carrying.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A DC power to Type-C output adapter, characterized in that: Includes a charger connector, an input module, a display module, a voltage conversion control module, an MCU control module, an output module, and at least one Type-C interface; The MCU control module is connected to the input module, the display module, the voltage conversion control module, and the output module respectively. The MCU control module is connected to the charger connector through the input module, and the MCU control module is connected to the Type-C interface through the output module. The input module is connected to the voltage conversion control module, and the voltage conversion control module is connected to the output module; When the MCU control module detects that the power input of the input module is between DC 30V and 68V, it controls the voltage conversion control module to convert the power input between DC 30V and 68V into a Type-C voltage and output it to the output module. The MCU control module controls the output module to communicate with other electronic devices for charging using a preset communication protocol.

2. The DC power to Type-C output adapter according to claim 1, wherein: The input module includes two resistors connected in series, a first resistor R1 of the two resistors in series is connected to the charger connector, and a second resistor R2 of the two resistors in series is connected to ground. The connection point between the first resistor R1 and the second resistor R2 is connected to the MCU control module. The power input of the input module is input into the MCU control module through a voltage divider between the first resistor R1 and the second resistor R2. The MCU control module includes an analog-to-digital converter, which converts the voltage divider between the first resistor R1 and the second resistor R2 into a digital signal to obtain a power input voltage. When the MCU control module detects that the power input voltage of the charger connector is between 30 V and 68 V DC, it sends an input power normal signal to the voltage conversion control module. The voltage conversion control module uses the input power normal signal to control the voltage conversion control module to start converting the input power into a Type-C voltage output. When the MCU control module detects that the power input voltage of the charger connector is not between 30 V and 68 V DC, it sends an input abnormal signal to the voltage conversion control module, and the MCU control module shuts down the voltage conversion control module.

3. The DC power to Type-C output adapter according to claim 2, wherein: The voltage conversion control module includes a buck controller, an energy storage inductor, an upper MOS transistor, a lower MOS transistor, and an output current detection resistor. The buck controller is respectively connected to the energy storage inductor, the upper MOS transistor, the lower MOS transistor, and both ends of the output current detection resistor. One end of the output current detection resistor is connected to the energy storage inductor. The output current flows into the output current detection resistor through the energy storage inductor. The voltage at one end of the connection point between the output current detection resistor and the energy storage inductor is a high output current detection voltage, and the other end of the output current detection resistor is a low output current detection voltage. The buck controller includes an analog-to-digital converter, which converts the voltage difference between the two ends of the output current detection resistor into a low output current detection voltage. The analog-to-digital converter included in the buck controller converts the low output current detection voltage into a digital signal to obtain an output voltage digital signal. The buck controller controls the upper MOS transistor and the lower MOS transistor with a PWM signal. When the upper MOS transistor is turned on, the lower MOS transistor is turned off. The input voltage is transmitted to the output module through the upper MOS transistor and the energy storage inductor. At the same time, the energy storage inductor stores energy. When the upper MOS transistor is turned off and the lower MOS transistor is turned on, the energy in the energy storage inductor is released to the output module through the lower MOS transistor. The buck controller controls the PWM signal duty cycle with the output voltage so that the output voltage is the Type-C power supply output voltage.

4. The DC power to Type-C output adapter according to claim 3, wherein: The input module also includes an input current detection resistor and a current detection unit. One end of the input current detection resistor is connected to the charger connector, and the other end of the input current detection resistor is connected to the buck controller. Both ends of the input current detection resistor are connected to the current detection unit respectively. The current detection unit is connected to the MCU control module. The input current flows from the charger connector through the input current detection resistor to the buck controller. The input current is converted into a current detection voltage through the input current detection resistor. The voltage across the input current detection resistor is input to the current detection unit. The current detection unit then outputs the voltage across the input current detection resistor to the MCU control module through differential amplification. The analog-to-digital converter of the MCU control module converts the input current detection voltage into a digital signal to obtain the input current magnitude. The MCU control module calculates the input power supply voltage and the input current to obtain the input power. The MCU control module displays the input voltage, the input current, or the input power on the display module.

5. The DC power to Type-C output adapter according to claim 3 or 4, characterized in that: The buck controller and the MCU control module are connected to the 2 C serial communication protocol, the buck controller converts the digital signals of the output voltage and the output current into I 2 The output voltage is calculated by the output current and the output power is obtained by the MCU control module, and the output power is displayed on the display module.

6. The DC power to Type-C output adapter according to claim 1, wherein: The charger connector is a 7.9mm*5.5mm connector with a hollow magnetic ring with a width of more than 2.5mm on the outside, which is used to identify the original charging cable.

7. The DC power to Type-C output adapter according to claim 1, characterized in that: The input module includes a Hall effect switch. There is a magnetic ring on the original charging cable. When the original charging cable is inserted into the charger connector, the Hall effect switch senses the magnetic ring of the original charging cable and outputs the potential sensed by the original cable. Otherwise, it outputs the potential not sensed by the original cable.

8. The DC power to Type-C output adapter according to claim 1, characterized in that: The output module is compatible with one or more fast charging protocols including programmable power supply PPS protocol, charging PD protocol, fast charging QC protocol, adaptive fast charging AFC protocol, fast charging FCP protocol, super fast charging SCP protocol, super fast charging PE protocol, and super fast charging SFCP protocol.

9. The DC power to Type-C output adapter according to claim 1, wherein: The voltage conversion control module can support one or more fast charging protocols including programmable power supply PPS protocol, charging PD protocol, fast charging QC protocol, adaptive fast charging AFC protocol, fast charging FCP protocol, super fast charging SCP protocol, super fast charging PE protocol, and super fast charging SFCP protocol.

10. The DC power to Type-C output adapter according to claim 1, wherein: The voltage conversion control module has overvoltage protection, overcurrent protection and short circuit protection functions.

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