51 results about "PD protocol" patented technology

The invention discloses a rapid charging system and method based on a USB PD protocol. The system comprises an adapter and a power utilization device; the adapter comprises a first input port, a first output port and a voltage transformation rectification filter voltage stabilizing circuit, and the voltage transformation rectification filter voltage stabilizing circuit comprises a first data processing chip which is based on the USB PD protocol and in data communication with the power utilization device; the power utilization device comprises a second input port connected with the first output port, a rechargeable battery and a charging control circuit, and the charging control circuit comprises a second data processing chip which is based on the USB PD protocol and in data communication with the adapter, a BUCK voltage conversion circuit and a constant current charging circuit; both the first output port and the second input port are Type C standard USB ports or Micro USB ports. According to the rapid charging system and method, the power utilization device directly adjusts the magnitude of the output voltage of the adapter through the USB PD protocol to make the adapter enter a constant current output work mode of the designated parameter, charging efficiency is high, and the power loss and heating in the power utilization device are lowered.

The technical scheme of the invention comprises a mobile power supply control device based on a Type C protocol and a PD protocol. The mobile power supply control device comprises a Type A port detection device, a charging device, a boost device, a power control device, a DPDM protocol device, a scene control device, a Type C protocol device and a PD protocol device. The mobile power supply control device has the beneficial effects that the resource is reduced, and the cost is reduced; and switching among charging and discharging at 5V, simultaneous multi-port discharging at 5V, single-port high-voltage charging, single-port high-voltage discharging and various scenes is supported by a single chip, the problem of charging and discharging of a mobile power supply at low power is effectivelysolved, and the risk of reverse charging of a mobile phone on the mobile power supply is effectively reduced.

The invention discloses an efficient and intelligent charger and a conversion method for the charger conversion protocol. The intelligent charger comprises a shell and a plurality of USB charging plugs arranged on the shell, and also comprises a single-plug high-speed intelligent rapidly-charging plug, and a charging-port identification chip capable of being compatible with intelligent mobile terminal equipment is arranged on the circuit board in the shell; a main control circuit, a protocol conversion circuit, an output voltage adjusting circuit and a Type C plug compatible PD protocol circuit are arranged on the circuit board. The charger protocol IC is compatible with the QC protocol, the MTK protocol and the PD protocol, the multiple USB plugs are selectively charged, and using is convenient.

The invention provides a double-screen display, comprising a display driving board and two EDP display screens, wherein the display driving board comprises a Type C interface, a Micro USB interface, aPD protocol controller, an MCU, a code stream distributor, a power supply module and two EDP interfaces; the Type C interface is used for accessing an external Type C signal; the PD protocol controller is connected with the Type C interface; the code stream distributor is respectively connected with the PD protocol controller and the two EDP interfaces; the two EDP interfaces are respectively connected with the two EDP display screens; and the power supply module is respectively connected with the Type C interface and the Micro USB interface. The double-screen display has the advantages of being low in cost and easy to expand.

The invention discloses a PD protocol-based programmable power supply (PPS) mobile power system and a control method thereof. The mobile power system comprises a battery pack, a lithium battery protection module, a battery end current acquisition module, an H-bridge module, a DC-DC module, a master control MCU module, a VBUS current acquisition module, a multi-protocol chip resistance network acquisition module, a multi-protocol chip module and a TYPE-C interface module. The mobile power system can be suitably used for rapidly charging a PPS-supported consumer electronic product capable of low-voltage direct charging, low-voltage direct charging of the PPS-supported consumer electronic product is achieved, so that heat generation quantity of a consumer electronic product end is reduced, and a user experience of the consumer electronic product is enhanced.

The invention discloses a multi-protocol fast charging adapter and an adaptation method. The fast charging adapter comprises an operational amplifier module, an RC low-pass filter module, a master control MCU, an LDO power supply module, a multi-protocol chip, a multi-protocol collection resistance network and a TYPE-C interface, wherein the operational amplifier module is connected to the mastercontrol MCU after being connected to the RC low-pass filter module, and the multi-protocol chip is connected to the multi-protocol collection resistance network and is connected to the master controlMCU through the multi-protocol collection resistance network. After the TYPE-C interface detects the access of a device, the master control MCU sends a signal to the access device, meanwhile the multi-protocol chip performs other fast charging protocol handshake excluding the PD protocol with the access device to identify and judge the type of the access device so as to achieve a fast charging effect.

The invention provides a power adapter and a charging control method. The power adapter comprises a rectifying circuit, a first adapter, a second adapter, a first PD protocol chip, a second PD protocol chip, a shunt switch, a first output port and a second output port; the rectifying circuit is connected with the first adapter and the second adapter; the first adapter is connected with the first PD protocol chip; the second adapter is connected with the second PD protocol chip; the first PD protocol chip is connected with the first output port; the second PD protocol chip is connected with the second output port; the first adapter is connected with the second adapter through the shunt switch; the first PD protocol chip is connected with the second PD protocol chip; and the first PD protocol chip and the second PD protocol chip are both connected with the shunt switch. According to the embodiment of the invention, the flexibility of the PD charger with the double USB-C interfaces is improved.

The invention discloses a vehicle charging control circuit and a method thereof. The circuit includes a vehicle charger, a charging control circuit and a voltage output end, wherein the charging control circuit includes an input voltage detection unit, a step-down power converter and a PD protocol control unit, the input voltage detection unit is used for detecting a voltage amplitude signal at aninput end of the vehicle charger and transmitting the voltage amplitude signal to the PD protocol control unit, and the PD protocol control unit is used for adjusting the output power of the vehiclecharger according to the voltage amplitude signal and acts on the step-down power converter to control an output voltage of the step-down power converter. The charging control method is applied to thevehicle charging control circuit. The vehicle charging control circuit is advantaged in that the output voltage specification of the USB PD vehicle charger can be automatically adjusted according tothe input voltage, a problem that the output voltage of the vehicle charger is insufficient due to the voltage drop of a vehicle battery is solved, and charging performance is improved.

The invention provides a display with a USB Type C interface. The display comprises a display driving board and an EDP display screen, wherein the display driving board comprises a USB Type C interface, a PD protocol controller, an MCU, an EDP interface and a power supply module; the USB Type C interface is used for accessing an external Type C signal; the PD protocol controller is connected withthe EDP display screen through the EDP interface; the signal conversion module is used for converting an external Type C signal into a DP signal and sending the DP signal to the EDP display screen; the MCU is used for configuring the PD protocol controller; and the power supply module is used for converting a VBUS power supply accessed through the USB Type C interface into a direct-current power supply required by the display driving board and a backlight power supply required by the EDP display screen. The display has the advantages of being low in cost and easy to expand.

The present invention relates to a device capable of achieving fast charge and fast discharge of a vehicle emergency starting source, including an input module, a voltage input adjustment module, a battery module, a voltage output adjustment module, a first output module, a second output module and a third output module. In the device, SC8801 is adopted, which is capable of achieving an input power up to 24 W, thereby improving the practicability of the device. Meanwhile, Type-C QC3.0 protocol is adopted in the first output module, USB QC3.0 protocol is adopted for the second output module, and Type-C PD protocol is adopted for the third output module, to meet different charging needs and improve the practicality of the device. Moreover, the voltage input adjustment module can balance and convert the power, thereby reducing power consumption and loss, improving electricity conversion rate, and improving practical value of the device.

The invention provides a novel handset plug connector expansion system. The novel handset plug connector expansion system comprises a control circuit board and a male plug connector arranged on the control circuit board, wherein the control circuit board is further provided with a PD protocol data processing chip, a BC protocol data processing chip, a first female jack and a second female jack, a charging and discharging switching circuit is connected between the PD protocol data processing chip and the male plug connector, the BC protocol data processing chip is electrically connected with the second female jack and the male plug connector, a sequential logic control unit electrically connected with the PD protocol data processing chip is further comprised, and a QC protocol data processing chip electrically connected with the second female jack and the male plug connector is further comprised. Through the novel handset plug connector expansion system, the one-to-two effect of a single jack is realized, a problem that music listening and charging can not simultaneously realized is solved, use limits caused by the single jack is avoided, high innovativeness, humane design, use convenience, one-object multiple-purpose effects and super-high cost performance are realized, and the novel handset plug connector expansion system is suitable for popularization and application.

The invention discloses a portable PD65W quick charger with an A port and a C port. The charger comprises a main control chip, wherein the main control chip is connected with a flyback transformer, the flyback transformer is connected with an output synchronous rectifier, the output synchronous rectifier is connected with an output filter, the output filter is connected with intelligent identification module and a Type-C output module, the intelligent identification module is connected with a USB-A output module and a power reduction identification module, the power reduction identification module is connected with a PD protocol voltage stabilization feedback module, the PD protocol voltage stabilization feedback module is connected with the main control chip, an alternating current entersthe flyback transformer through alternating current input and input filtering in sequence, and a PD protocol voltage stabilization feedback module and the Type-C output module are connected with eachother. The charger is advantaged in that the charger is taken a PD65W 1A1C rapid charger, power balance can be carried out according to output conditions of the A port and the C port; when only the USB-A port outputs, the maximum output power is for 5V2A intelligent charging, and the charger is suitable for all intelligent terminals in the market.

The invention relates to a PD charging circuit capable of automatically compensating line loss and a charging method. The PD charging circuit comprises a Type C interface, a PD protocol chip and a PD power supply conversion module, wherein an input voltage Vin is input into the PD power supply conversion module, the PD power supply conversion module carries out voltage conversion on the input voltage Vin, a conversion voltage VBUS is output after filtering, a voltage obtained after the conversion voltage VBUS passes through a conducting wire is a post-wire output voltage Vo, the post-wire output voltage Vo is provided for power receiving equipment, a voltage drop is generated between the conversion voltage VBUS and the post-wiore output voltage Vo due to the parasitic resistance R2 of the conducting wire, a DC-DC conversion chip detects the current of the power receiving equipmentin real time through a current detection amplification unit to obtain a preset interval where the current value is located, the voltage of the conversion voltage VBUS is adjusted to a voltage corresponding to the preset interval of the current so as to make the post-wire output voltage Vo reach a set value, and the post-wire output voltage Vo is output to the TYPE C interface through the conducting wire.

The invention relates to a charging control method and device, electric equipment, charging equipment, a system and a medium. The method applied to the electric equipment following a USB PD protocol comprises steps that the second authentication information of the charging equipment is received; judging whether a first preset data segment of the generated first authentication information corresponds to a first preset data segment of the second authentication information or not; if the first preset data segment of the first authentication information corresponds to the first preset data segmentof the second authentication information, sending the first authentication information to the charging equipment; and determining a charging state according to the received second authentication result of the charging equipment. According to the charging control method disclosed by the invention, in the charging process, the electric equipment firstly performs first authentication on the chargingequipment, and the charging equipment performs secondary authentication on the electric equipment, and determines the charging state according to the two authentication results, so the compatibilityof the electric equipment to the charging equipment is improved, the situation of unreasonable use of the charging equipment is avoided, and use experience of a user is improved.

The invention discloses an adapter device based on a PD protocol and a charging method. The device comprises a device entrance, a master control MCU, an LDO power supply module, a VBUS voltage detection unit, and a device exit. The device entrance is connected to a PD adapter power supply, and the device exit is connected to a traditional notebook. The VBUS voltage detection unit is between the device entrance and the device exit and is connected to the device entrance through CC1 and CC2 paths. The LDO power supply module and the VBUS voltage detection unit are connected to the master control MCU and are connected to the VBUS voltage detection unit. According to the adapter device and the charging method, a problem that an existing PD adapter can not be compatible with traditional notebook charging is solved, and the PD adapter power supply outputs specific voltage needed by the traditional notebook to the traditional notebook to carry out charging.

The invention discloses a fast charging conversion device which comprises an input end and an output end, and a main control MCU is arranged between the input end and the output end. A QC protocol auxiliary circuit is arranged between the main control MCU and the input end, and a PD protocol chip is arranged between the main control MCU and the output end; a switch MOS is arranged on the upper side of the main control MCU, and a power supply LDO is arranged on the lower side of the main control MCU; and a first light-emitting LED, a second light-emitting LED and a third light-emitting LED aresequentially arranged on the side, close to the output end, of the right side of the power supply LDO from top to bottom. The stock charger is creatively utilized and transformed into the advanced USBType-C PD charger, so that the fast charging conversion device has the characteristic of low overall cost, and waste of money and resources is avoided.

The invention discloses a USB cable control device and method with temperature limitation. The device comprises two USB connectors, power supply pins VBUS and power supply grounding loop pins GND, thepower supply pins VBUS of the two USB connectors are connected through a cable, the power supply grounding loop pins GND of the two USB connectors are connected through a cable, and the two USB connectors are communicated with each other through a CC lead. The temperature condition of a hot spot area in the cable is detected in real time through a thermistor NTC, after the actually measured temperature is higher than a preset temperature, namely a measured voltage VNTC is lower than a preset voltage VOT, an over-temperature mechanism is triggered, and a Hardreset instruction is output to an external device through a PD PHY unit. Under a USB PD protocol communication mode, resetting needs to be conducted between the external device and the USB male connectors, and the USB PD protocol communication is carried out again to limit the power of the whole system, so that the cable is prevented from being melted due to over-temperature.

The invention discloses a method and device for realizing fixed-frequency voltage-regulating wireless charging through QC and PD protocols. The method is based on a main control chip, a transmitting coil, an MOS transistor switching circuit, and a charger, and comprises the following steps that: the charger supplies a working power supply to the transmitting coil; the main control chip controls the MOS transistor switching circuit to be alternately switched on and off; the transmitting coil forms a conduction full-bridge rectification circuit, and transmits magnetic energy to a mobile phone soas to charge the mobile phone; the transmitting coil receives feedback signals from the mobile phone, and the main control chip demodulates the feedback signals and calculates power and voltage required by the mobile phone; the main control chip sends the QC protocol or PD protocol to the charger at the front end through a USB data line; and the charger adjusts voltage to voltage required by thetransmitting coil order by order with 0.2 V taken as an adjusting order, so that the mobile phone obtains the required charging power. The a method and device have the advantages of low cost, simple control circuit, smaller heat emission quantity of the wireless charger, and the like.

The invention discloses a linear adjustable power converter based on a PD protocol and a charging method. The power converter can perform intermediate conversion between a PD power supply adapter andelectric equipment. The VBUS voltage obtained from the PD power adapter can be adjusted to a target voltage required by the electric equipment; power is supplied to electric equipment (such as a traditional notebook computer, a router, an optical modem, an LED table lamp and the like). Different electric equipment can use the same PD power adapter, resource sharing can be achieved, the applicationrange of the PD power adapter is expanded, and the problem that if an original charger is damaged, a common user cannot find a proper power adapter easily can be solved. According to the charging method, communication with the PD power adapter is established through a PD protocol handshake module, a PWM voltage regulation and control mode is adopted, the method is simple, and output can be adjusted according to a set target voltage value to be used by the electric equipment.

The invention relates to the technical field of decoding, in particular to an SOP packet decoding method suitable for a USB-PD protocol, storage equipment and a decoder. The SOP packet decoding methodsuitable for the USB-PD protocol comprises the following steps: after the correct receiving of Preamble is finished, starting to set f, and meanwhile, starting to count b; if the first K-code is correctly received, adding 1 to a counter c; if the first K-code is not correctly received, setting h to be 1 when b is larger than 5, and if a matching event of a K-code packet occurs when b is less thanor equal to 5, setting d to be 1; if a matching event of the K-code packet occurs when 8<=b<=10 and h=1, setting e to be 1; when d=1, correcting b to 5; when e=1, correcting b to 10; when b is equalto 20, setting g to be 1; when b is equal to 5, 10, 15 and 20 under the condition that d is equal to 1 or e is equal to 1 or K-code packets are matched, adding c with 1; carrying out sop decoding whenc is larger than or equal to 3; storing an SOP decoding result in j. According to the technical scheme, under the condition that any one K-code error or the last preamble error in the four K-codes intotal is wrong, the whole sop packet can still be completely decoded.

The invention discloses a charger with an HDMI screen projection function. The charger comprises a shell, a folding plug shell, an output module, an HDMI and a USBHUB module. One end of the shell is connected with the folding plug shell. A top plate is arranged at the other end of the shell; a heat dissipation ring is arranged in the shell; one end of the radiating ring is connected with the insulating ring; the output module is arranged on the inner side of the heat dissipation ring; the output module is provided with a TYPE-C joint, a USB joint and an HDMI joint. One end of the output moduleis connected with the HDMI and USBHUB module, the HDMI and USBHUB module is connected with a power supply module, and a PD protocol board is arranged between the HDMI and USBHUB module and the powersupply module. By utilizing the output module, the PD protocol board, the HDMI and USBHUB module and the power supply module, a screen projection function with a mobile phone, a game machine and a computer can be realized by externally connecting an HDMI line and a display, and the charger is made of a flame-retardant material, is high in use safety, integrates expansion, video and screen projection, and is high in practicability.