49 results about "PD protocol" patented technology

The invention discloses a multi-port charging selection circuit and method.According to the multi-port charging selection circuit, a switch switching module, a PD protocol module and a main control module are arranged in an interface module with a multi-interface circuit, and the main control module conducts charging according to signals of the interface module; the switch switching module is controlled to enable any interface circuit of the interface module to be connected with the PD protocol module; therefore, any interface circuit is selected from the interface modules to be connected with the PD protocol module, rapid charging is achieved, multiplexing of the PD protocol module is achieved, resources of the PD protocol module are saved, the size and internal space design of the electric equipment are reduced, the structure of the electric equipment is simplified, the circuit setting complexity is reduced, and the power utilization efficiency is improved. And thus, the stability and the use safety of the electric equipment are improved.

The invention provides a self-adaptive PD charging control method and system based on a double Type-C circuit and a storage medium, and the method comprises the steps: monitoring an interface connection state in real time, collecting power-on current information when peripheral access is detected, and intelligently recognizing a device type in combination with a preset current threshold range and a PD protocol handshake process. The function change-over switch and the charging management module are dynamically configured; if the device is a data device, a data path is connected and power output is limited; if the device is a charging device, charging parameters are negotiated and high-power transmission is started; when the double charging devices are connected, intelligent power distribution and priority management are executed, electrical parameters such as voltage, current and temperature are continuously monitored, and self-adaptive adjustment is triggered when the voltage, the current, the temperature and the like exceed the limit. According to the invention, intelligent function switching and safe power management of double interfaces are realized, the risk of misplug damage is effectively avoided, and the equipment compatibility, the system energy efficiency and the user experience are improved.

The invention discloses a mobile terminal data monitoring method and device, equipment and a medium, and relates to the technical field of data monitoring, and the method comprises the steps: adjusting charging equipment as a host and a mobile terminal as slave equipment if the access of the mobile terminal is detected, and enabling the mobile terminal to complete the authorization authentication of the charging equipment; the charging device is adjusted to be a slave device, the mobile terminal serves as a host, and authorization authentication of the mobile terminal is completed; monitoring data sent by the mobile phone are received, the monitoring data are sent to a preset monitoring server, and before the monitoring data are not sent, the mobile terminal is kept as a host, and the charging equipment is kept as slave equipment. According to the invention, authentication is carried out based on the PD protocol, and a monitoring APP does not need to be installed in the mobile terminal, so that the strict limitation of a closed operating system (such as iOS) on data access is broken through. In the data transmission stage, the charging device always keeps the slave device role, it is ensured that the mobile terminal continuously sends data, and transmission interruption caused by role switching is avoided.

The utility model relates to the technical field of chip detection, in particular to a PD protocol chip detecting and sorting device. Comprising a workbench, a charging tray, a first jig, a second jig, a third jig, a detection device, a first manipulator, a second manipulator and a first driving part, the first manipulator transfers an external chip in the charging tray to the first jig; the detection device is used for detecting the external chip in the first jig; the second manipulator transfers the external chip in the first jig to the second jig or the third jig; the first driving piece drives the first jig material disc to move; the first jig comprises a movable plate, a constant-temperature plate and a material carrying disc which are sequentially arranged from bottom to top. The first driving piece drives the movable plate to move back and forth between the material disc and the first jig. The first jig composed of the movable plate, the constant temperature plate and the material carrying disc is arranged, the constant temperature plate controls the working state temperature of the material carrying disc, the stability and authenticity of an external chip detection result are ensured, and the controllability of production quality is improved.

The utility model relates to an internet-of-things voltage conversion circuit for PD protocol power taking, which belongs to the technical field of power supplies and comprises a voltage decoy module, a voltage conversion module and an internet-of-things function module. The voltage decoy module is connected with the voltage conversion module, and the voltage conversion module is connected with the internet-of-things function module. The utility model overcomes the problem that direct current power supply equipment depends on commercial power for power supply, and provides a miniature direct current power supply design for realizing multipath output under common voltage requirements of 3.3 V / 5V / 12V and the like. The device has the following advantages: (1) the device has a PD protocol power taking function, and the device can use a mobile power supply supporting a PD protocol to supply power to overcome the commercial power to work; (2) a plurality of different power supply conversion chips are used, so that multi-structure and multi-channel voltage output is realized; and (3) modular design is adopted, and the equipment is compact.

The invention relates to an ONU (Optical Network Unit) panel type access device based on Type-C reverse power supply, which provides power for an ONU panel through a Type-C PD protocol while enabling user equipment to surf the Internet through a Type-C reverse power supply technology, and avoids large size, complex installation and electrical potential safety hazards caused by a traditional AC-DC (Alternating Current-Direct Current), PoE (Power over Ethernet) or PoF (Power over Fiber) power supply scheme. The BOSA optical fiber transceiver is used for realizing bidirectional conversion between an optical signal and an electric signal, and is connected with an optical line terminal (OLT) through a single-mode optical fiber to provide high-speed data transmission. And the processing chip and the protocol conversion circuit are responsible for data processing and protocol conversion to ensure the compatibility with external equipment. The power change-over switch cooperates with the PD detection circuit to automatically detect the power state of the Type-C port, and the on-off of the switch is controlled according to the power state, so that the electrical safety is improved. The equipment design is simplified, and the cost is reduced.

The utility model relates to the technical field of integrated circuits, in particular to a multi-interface integrated circuit of a point sale mainboard, a device connector is electrically connected with a USB 2.0 joint and a USB PD quick charge connector, and the USB 2.0 joint is in communication connection with a port concentrator SL2.1 S chip; the port concentrator SL2.1 S chip is provided with a 100M network card chip and a USB two-port concentrator in parallel, and the 100M network card chip is electrically connected with an RJ45 100M network port. According to the utility model, the USB two-port concentrator and the RJ45 100M network port interface are used, so that better anti-interference and anti-aging performance is achieved, compatibility and connection of various peripheral equipment are supported, the USB PD fast charging connector supports PD protocol fast charging and can support more peripheral equipment needing electric power, and a plurality of safety protection mechanisms are adopted, so that the safety of the USB PD fast charging connector is greatly improved. And the phenomenon of overvoltage overload damage caused by incorrect use of the adapter and equipment of the traditional AC power supply is avoided.

The invention provides a PFC control parameter self-adaptive adjusting system and method based on a charging method. Belongs to the technical field of fast charging power management. The method comprises the steps of performing real-time analysis on a USB PD protocol, obtaining corresponding data supported by charging equipment, synchronously collecting voltage and current signals of a power grid, performing online impedance estimation, and generating impedance characteristic data of the power grid; constructing a scene feature vector in combination with a charging stage identification result; by analyzing the scene feature vector in real time and dynamically generating the optimal control parameter, the power factor can be stably higher than 0.98 and the THD is strictly controlled within 5% under the conditions of wide voltage and multiple powers, so that efficient and stable electric energy conversion is realized, and the charging efficiency and quality are improved.

The utility model discloses a vehicle-mounted USB charger supporting screen projection to AR glasses, one end of the charger is connected with a vehicle-mounted main control chip, the other end of the charger is connected with the AR glasses, the charger comprises a power supply chip, the power supply chip is connected with a PD protocol controller, the power supply chip is connected with a power supply input connector, the power supply input connector is connected with an automobile battery, and the PD protocol controller is connected with the power supply input connector. The charger transmits handshake signals to the vehicle machine through the PD protocol controller via the type-c connector. The PD protocol controller is connected with the vehicle machine chip through a signal end, and transmits signals including identification of positive and negative signals of an inserted device, identification of screen projection channel signals supported by the inserted AR glasses and identification of whether the AR glasses are ready for screen projection to the vehicle machine main control chip through the type-c connector. According to the utility model, the screen projection function from the vehicle machine to the AR glasses can be effectively realized, the realization mode is simpler compared with the existing screen projection mode, a deserializer is not needed for derotation, the cost is low, the practicability is strong, and the interestingness of the vehicle is enhanced.

The utility model relates to the technical field of adapters, in particular to a multifunctional extension socket. Comprising a commercial power input end, an AC socket module, a rectification filtering module, a flyback control module, a synchronous rectification control module, a DC output module, a first charging module, a second charging module and a wireless charging module, the AC socket module and the rectification filtering module are connected with the commercial power input end, and the flyback control module is connected with the rectification filtering module and the synchronous rectification control module. The input end of the DC output module is connected with the synchronous rectification control module, and the output end of the DC output module is connected with the first charging module, the second charging module and the wireless charging module; the wireless charging module comprises a wireless charging Buck control and PD protocol control unit and a wireless charging control unit. The wireless charging Buck control and PD protocol control unit is connected with the DC output module and the wireless charging control unit. According to the scheme, the wireless charging module is arranged, so that 25W wireless quick charging of the iPhone mobile phone is realized, and an iPhone user has faster wireless charging experience.

A charger includes a Type-A female socket, a PD charging processing unit, a non-PD charging processing unit, a data cable matching unit, and a first switching unit. The Type-A female socket includes a first communication pin. If the data cable matching unit determines, based on a matching signal transmitted via the first communication pin, that the charger is connected to a first to-be-charged device through a first data cable, and the first switching unit is connected to the first communication pin and the PD charging processing unit. If the data cable matching unit determines, based on a matching signal transmitted via the first communication pin, that the charger is connected to a second data cable or is connected to a second to-be-charged device through a data cable, the first switching unit is connected to the first communication pin and the non-PD charging processing unit.

A system for watermarking a USB Type-C and PD protocol hardware sub-system existing as a part of a SOC / IC system includes a tester to generate a watermarking signal, a device under test (DUT), wherein the DUT is configured with a USB Type-C port with power delivery implementation and including a hardware subsystem configured for watermarking the DUT and transmit a response signal upon receipt of the watermarking signal from the tester. The tester includes a controller including one or more processors that execute a set of executable instructions that are stored in a memory, upon which execution, the processor causes the controller to generate the watermarking signal, the watermarking signal comprises a custom signal and a custom packet associated with a configured custom signal stored in a data buffer that is associated with the SOC / IC system, and transmit the watermarking signal on one or more configuration channel (CC) lines.

The invention discloses a low-cost dynamic power control temperature control system based on a PD protocol, which belongs to the technical field of x, and comprises a power supply module used for power supply work of the whole equipment, and a voltage regulation module comprising a PD protocol chip and an LDO (low dropout regulator), the PD protocol chip and the input end of the LDO (low dropout regulator) are connected with the power supply module through the power harness. The TEC module has the beneficial effects that accurate voltage regulation is realized at a power supply source through the PD protocol chip, continuous and stable direct-current voltage is loaded at two ends of the TEC module instead of a PWM (Pulse Width Modulation) high-power switching signal in the prior art, suppression is performed from the root of electromagnetic radiation generation, EMC rectification components such as an electromagnetic shielding cover, a common-mode inductor and a filter capacitor do not need to be additionally arranged, and the cost is reduced. Therefore, the harsh electromagnetic compatibility test requirement can be easily met, the compliance cost and the design period of the product are greatly reduced, and the long-standing EMC design difficulty in the industry is solved.

The application relates to the technical field of data processing, and discloses a method for realizing a PD protocol PHY layer through software and an MCU, wherein the method is characterized in that the method realizes the PHY layer of the PD protocol through software by sequentially detecting whether there is preamble data, searching for SOP characters in received data, searching for EOP data, and updating check data of the received data before the SOP is searched and the EOP data is searched, so that the PHY layer of the PD protocol is realized through software, the hardware for realizing the PHY layer in a PD protocol chip is reduced through the operation, and thus the area and cost of the PD protocol chip can be reduced; in addition, the software is realized, the overall flexibility is high, the restriction of the PHY layer on the PD protocol chip can be reduced, and thus the message extraction can be customized according to actual requirements.

The invention provides a method for a relay component to execute a PD E-marker function, an information processing device and an active cable, and relates to the technical field of communication, the relay component comprises a serial communication device and a processor, and the method comprises the following steps: in response to power-on, the processor completes loading of first firmware within tVconnStable time; the processor executes the first firmware to implement a PD E-marker function by using the serial communication device, the PD E-marker function comprising: returning cable information in response to a first USB PD command; the processor loads the second firmware and executes the second firmware. According to the method, the operation firmware of the relay assembly is subjected to functional splitting, only the first firmware related to the function of returning the cable information in response to the USB PD command is loaded in the tVconnStable time, the size of the firmware loaded in the tVconnStable time is shortened, and the purpose that the relay assembly with the eMarker function can quickly return the cable information based on the USB PD protocol after being powered on is achieved.

The utility model provides a power supply system of a laser tool supporting PD rapid charging. The power supply system comprises a USB Type-C interface, a PD protocol chip, a charging and discharging management circuit and an internal power supply. According to the utility model, a circular DC interface is replaced by the USB Type-C interface, so that a charger with the existing USB Type-C interface or other power supplies can be used for charging; the phenomenon that the lithium battery is damaged due to mismatching of charging voltage and charging current when a compliant USB cable and a charging power supply are used for charging is avoided; meanwhile, when a USB line supporting a PD protocol and a charging power supply are used for charging, the charging power can be dynamically increased, so that the charging time is shortened; and other equipment based on the USB interface can be charged.

The application discloses a shared power bank anti-theft and state monitoring system based on AI multi-modal recognition, relates to the technical field of shared technical services, and constructs a three-dimensional hardware fingerprint joint detection system of a PD protocol communication digital domain, a voltage ripple simulation domain and a chip response delay time sequence domain, and introduces an abnormal communication flow detection of a time sequence convolution network and a graph attention network hybrid architecture, realizes intelligent identification of various theft means such as protocol fraud, chip replacement and violent damage, extracts a digital domain feature vector, a simulation domain feature vector and a time sequence physical fingerprint vector respectively, fuses the digital-analog dual-domain fingerprint generation module into a dual-domain fingerprint vector F, outputs a fine-grained abnormal probability score S by the abnormal communication flow detection module, executes a hierarchical response, improves the robustness and adaptability of the anti-theft system, and provides reliable technical support for asset safe operation of the shared power bank industry.

This invention provides a method and system for black-starting V2G charging piles, relating to the field of V2G charging pile black-start technology. The method includes a protocol control module detecting the Type-C interface electrical signal; when a portable power module is connected, performing a USB-PD protocol communication handshake with the portable power module via the CC channel; reading the PDO message of the power data object and obtaining capability parameters; the protocol control module controlling the portable power module to output high-voltage DC power to supply power to the control circuit of the V2G charging pile and wake up the control unit; the control unit establishing a discharge protocol communication link with the vehicle's BMS; generating a contactor closing command after discharge interaction and insulation detection; controlling the vehicle to close the high-voltage contactor; establishing a high-voltage DC output link; and the control unit converting the high-voltage DC power into industrial frequency AC power for output to household loads, thereby reducing the cost of black-starting V2G charging piles and improving operational safety and low-temperature starting performance.

The utility model discloses a universal serial bus (USB) protocol converter based on a full-function universal serial bus-C (USB-C) interface or a lightning interface, which is characterized in that PD protocol power supply of a first TYPE-C interface is decoy VBUS to be 15V fixed voltage through a first TYPE-C interface, an onboard USB serial port protocol conversion chip and a first PD protocol decoy chip at the same time, then the voltage is boosted to be 24V through a boosting chip, and the 24V fixed voltage is output. According to the invention, by designing a first TYPE-C interface and loading a second PD protocol decoy chip, 15V is reduced to 12V through a voltage reduction chip to be output, the functions of communication and 12V / 24V external power supply can be realized by only using one USB line, the voltage is converted to stable 5V through a voltage boosting and reducing chip to be output, the functions of communication and power supply can be realized, and by designing a second TYPE-C interface and loading a second PD protocol decoy chip, the communication and power supply functions can be realized. The power supply device is used for being connected with a power bank with a PD protocol to convert voltage into 5V / 12V / 24V, and the power supply problem of a computer without a full-function USB-C or thunder and lightning interface is solved.

A video conferencing controller connects two or more source devices to at least one target device of a videoconference system. The controller has at least two primary ports for connection to a respective one of the source devices and at least one secondary port for connection to a respective one of the target device(s). A control unit identifies one of the source devices as a master from which output data may be forwarded to the at least one target device via the video conferencing controller. In response to a control command received via the USB PD protocol, the control unit identifies the master and sends a first control signal, via the USB PD protocol implemented over the USB-C cable, to this device. The first control signal causes an electrically controllable visual indicator on a USB-C cable between the master and the video conferencing controller to attain a predefined state.

The invention discloses a universal serial bus (USB) PD protocol verification system and method based on a universal virtual machine (UVM). The system comprises a parameterization test control unit, a protocol analysis verification unit, a power supply parameter monitoring unit, a role switching management unit and an abnormal scene construction unit. The parameterization test control unit generates a positive test case and a negative test case; the protocol analysis verification unit realizes protocol message deep analysis and real-time CRC verification; the power supply parameter monitoring unit obtains actual output parameters and compares the actual output parameters with protocol request parameters in a closed-loop mode; the role switching management unit supports Source, Sink and DRP role dynamic switching and maintains protocol state continuity; and the exception scene construction unit injects multiple types of exception states to verify the exception handling capability of the equipment. According to the invention, the technical problems of insufficient protocol deep analysis, disjunction of electrical parameters and protocol verification, discontinuous role switching state and the like in the existing verification technology are solved, the cooperative verification of the protocol layer and the power supply layer is realized, and the verification efficiency and coverage rate of the USB PD protocol chip are improved.

The utility model discloses a power supply adapter structure used for heating clothes, comprising a connector which at least comprises an end seat, a DC jack and a type-C jack arranged at different sides of the end seat, and a PD protocol chip packaged in the end seat, the DC jack and the type-C jack are connected in parallel, and a signal handshake end of the type-C jack is connected with a signal handshake end of the PD protocol chip; one end of the wire is connected with the output ends of the DC socket and the type-C socket, and the other end of the wire is connected with the heating unit. And the PD protocol chip is an FS312BL PD handshake protocol chip. The beneficial effects of the utility model are that the DC jack and the type-C jack which are connected in parallel are arranged, the DC jack is utilized to input the output voltage of the 12V special mobile power supply into the heating unit, and the type-C jack and the PD protocol chip are utilized to decoy the universal mobile power supply to output the 12V voltage and input the 12V voltage into the heating unit, so that the heating clothes can be adapted to more mobile power supplies, and the heating efficiency is improved. And the user experience is improved.

This utility model discloses a power supply adapter structure for heated clothing, the power supply adapter structure including: a connector at least including a base, a DC socket and a type-C socket disposed on different sides of the base and connected in parallel, and a PD protocol chip encapsulated inside the base and having a signal handshaking terminal connected to a signal handshaking terminal of the type-C socket; and a wire connected, at one end, to output terminals of the DC socket and the type-C socket and connected, at the other end, to a heating unit. The PD protocol chip is an FS312BL PD handshake protocol chip. This utility model has the following beneficial effects.

The invention discloses a power supply circuit based on a PD protocol, and relates to the technical field of power supply. The PD protocol chip is connected with the input interface and used for detecting the type of the adapter and controlling the adapter to output corresponding voltage based on the type of the adapter; the wide-voltage input power management IC is connected with the output end of the PD protocol chip and is used for outputting a constant 5V voltage; and the first load is connected with the wide-voltage input power management IC and receives the constant 5V voltage output by the wide-voltage input power management IC. According to the invention, the type of the adapter is dynamically identified through the PD protocol chip, the output voltage is controlled, single-stage high-efficiency conversion is realized in combination with the wide-voltage input power management IC, and a traditional multi-stage redundant circuit is eliminated. The energy utilization rate is improved, meanwhile, the layout space occupation is remarkably reduced, the voltage precision and stability are ensured through the 5V direct supply key load, and the power supply energy efficiency, the integration degree and the reliability are comprehensively optimized.

The invention relates to the technical field of power management and charging, and discloses a one-driving-three output and display PD wire control method, which comprises the following steps: S1, a main transmission cable is connected with a branching hub through a standard interface, the main transmission cable is used for receiving power input from a PD power adapter or power equipment supporting a USBPD protocol, and the main transmission cable is connected with the branching hub through the standard interface; the branching hub distributes the power supply of the main transmission cable to the three branch cables and is used for providing charging power for different electronic devices. And S2, protocol identification and power demand evaluation, which is used for carrying out charging protocol identification on the electronic equipment connected to the three branch cables through a support vector machine or a neural network classification algorithm, and determining the charging protocol of each piece of equipment. Through an intelligent power distribution algorithm, real-time charging state monitoring and multiple safety protection mechanisms, efficient and safe synchronous charging of multiple devices is realized, the charging efficiency is optimized, and the safety and user experience in the charging process are improved.

This utility model discloses a dual Type-C interface circuit and a tablet computer. The dual Type-C interface circuit includes: a Type-C1 interface, a Type-C2 interface, a PMU chip, a CPU chip, a charging chip, a battery, a PD protocol chip, and a control circuit. The PMU chip is connected to the DP1 / DM1 and CC1 pins of the Type-C1 interface and the CPU chip. The CPU chip is connected to the CPU_INT1 pin of the Type-C1 interface, the CPU_INT2 pin of the Type-C2 interface, the charging chip, and the PD protocol chip. The charging chip is connected to the battery and the DP2 / DM2 pin of the Type-C2 interface. The CC2 pin of the Type-C2 interface is connected to the PD protocol chip. The control circuit is connected to the VBUS1 pin of the Type-C1 interface, the VBUS2 pin of the Type-C2 interface, the CPU chip, the battery, and the charging chip. This utility model designs a USB fast charging circuit and a logic judgment circuit to realize the dual Type-C interface function and meet usage requirements.

The invention discloses a PD interface automatic switching circuit supporting PCBA board front and back side testing. The PD interface automatic switching circuit comprises a main control module, a communication conversion module, a channel switching module, a PD interface module, a USB PD protocol module and a power supply adjusting module. Wherein the PD interface module is arranged between the circuit and a PCBA board to be tested, the channel switching module is electrically connected with a CC1 / CC2 channel of the PD interface module, and the main control module receives a PC end control signal converted by the communication conversion module and drives the channel switching module to conduct the CC1 or CC2 channel so as to realize test switching of the accessed PCBA board in different insertion directions; the USB PD protocol module is electrically connected with the PD interface module, and the power supply adjusting module provides voltage-stabilized power supply for the USB PD protocol module. According to the invention, by automatically switching the PD channels, manual repeated plugging is avoided, the test efficiency and reliability are improved, and the method is suitable for PD protocol communication and power management in a double-sided test scene.

The utility model relates to LEV vehicle technical field, concretely is a kind of PD fast charging circuit suitable for LEV vehicle.Voltage input end is connected with power control module and LDO voltage reducing module respectively, the output end of power control module is connected with DC-DC power module through DC-IN pin, DC-DC power module and PD protocol chip module connect, PD protocol chip module and Type-C female seat connect, Type-C female seat is connected to plug-in identification module, plug-in identification module transmission detection signal to MCU control module, Type-C female seat transmission detection signal to operational amplifier-output current detection module, operational amplifier-output current detection module transmission detection signal to MCU control module, the output end of LDO voltage reducing module is connected with operational amplifier power control module, and MCU control module and power control module connect.Compared with prior art, solve fast charging protocol chip low voltage resistance, power consumption is big, circuit complex and other defects, with high voltage resistance, power consumption is extremely low, automatically identify insertion and close and other characteristics, the circuit versatility is strong, can be modularized fast development.

A PD protocol-based charging and discharging common interface garden battery pack is provided, including: an MCU control unit, wherein the MCU control unit is configured to perform logical control over the circuitry and further includes an MCU chip; a PD charge / discharge management unit for controlling charge / discharge logic, which includes a charge / discharge management chip electrically connected to the MCU chip to form a signal pathway; a battery pack unit for energy storage or discharge, connected to the MCU control unit and the PD charge / discharge management unit.

The invention relates to the technical field of intelligent power supply, in particular to an intelligent power supply system with storage and a storage and power supply switching method, the intelligent power supply system comprises a power supply management module, an SSD storage module, a dual-core control unit and a single USB Type-C interface, the power supply management module comprises a battery and an integrated control chip, and supports USB PD 3.0 protocol bidirectional fast charging; the SSD storage module supports an NVMe SSD of an M.2 interface; the dual-core control unit comprises a PD protocol chip and a low-power-consumption MCU. And the dual-core control unit dynamically configures charging and discharging parameters of the control chip through an I2C bus. According to the invention, the efficiency of charging and data transmission is improved, excellent technical effects are shown in the aspects of intelligent management, power consumption control, equipment compatibility and the like, and the system is suitable for various scenes.