37 results about "PD protocol" patented technology

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 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 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 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 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.

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.

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.

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 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.

The present application relates to the technical field of mobile power supply, and particularly discloses a mobile power supply with standard PD docking station function and inversion function and an implementation method, wherein the mobile power supply with standard PD docking station function and inversion function is provided with an uplink Type-C interface, a downlink Type-C interface, and a first function circuit and a second function circuit electrically connected to the uplink Type-C interface and the downlink Type-C interface respectively, can supply power externally or charge a battery pack through the uplink Type-C interface, and can supply power externally through the downlink Type-C interface; the uplink Type-C interface and the downlink Type-C interface can also perform USB data transmission and DP video data transmission; by integrating power supply, docking station data transmission and AC inversion function, the number of devices required for outdoor operation and wiring is reduced, lightweight integrated design is realized, carrying and deployment costs are reduced, and use efficiency is improved; in addition, synchronous operation of standard PD protocol power supply and USB / DP data transmission of the two downlink Type-C interfaces can be realized, and actual needs of multi-peripheral standard PD power supply and data interaction are met.

The invention discloses a display screen wired touch anti-control method and system, an intelligent terminal and a computer readable storage medium, and the method comprises the steps: starting USB PD protocol negotiation between a display screen and a mobile intelligent terminal, so as to obtain the identity information of the mobile intelligent terminal; and the type of the mobile intelligent terminal is identified through the identity information. According to the method, the iPhone equipment is automatically identified through the PD protocol, a user does not need to manually configure the equipment type or effective area parameters, the operation is more convenient, and the problem of touch offset caused by the black edge is solved by dynamically calculating the effective display area and the black edge range and specifically mapping the physical touch coordinates.

The invention provides 86-type high-power wireless AP equipment. The 86-type high-power wireless AP equipment comprises a functional mainboard and a power conversion board, wherein a power supply circuit on the power supply conversion board comprises a protection circuit module, a PD interface control module and a power supply conversion module, the PD interface control module comprises a first chip used for realizing a PD protocol-based function, and the power supply conversion module comprises a second chip used for realizing conversion from high voltage to low voltage. Cooling fins connected with the shell are arranged on the surfaces of key power components in a power circuit on the power conversion board. Compared with the prior art, the invention has the following beneficial effects: in order to improve the power supply conversion efficiency and reduce the loss, the power supply circuit on the power supply conversion board does not adopt an integrated PD chip, two chips (a PD interface control chip and an efficient synchronous rectification Buck integrated chip) with high efficiency, small size and few peripheral devices are selected for circuit design, the two chips can dissipate heat separately, and the power supply conversion efficiency is improved; therefore, the risk of heat concentration of a single chip is reduced.

The embodiment of the invention discloses a control method of a PD power supply circuit and related equipment, and is applied to the technical field of electric power supplies. In the embodiment of the invention, the PD power supply circuit comprises a transformer, a main switch and a quasi-resonance controller at the primary side of the transformer, and a PD protocol module at the secondary side of the transformer; the control method of the PD power supply circuit comprises the following steps: controlling a PD protocol module to determine whether a load carried by the PD power supply circuit is a specific load based on an output current and an output voltage of the PD power supply circuit; the specific load is a load influencing the jitter frequency function of the quasi-resonance controller; and if yes, controlling the PD protocol module to output a periodically fluctuating negative feedback signal to the quasi-resonance controller, so that the quasi-resonance controller controls the switching period of the main switch to periodically change based on the negative feedback signal and the excitation current signal passed by the main switch. And when the load is specific, the jitter frequency function of the quasi-resonance controller is added, the conduction and radiation performance is optimized, and the electromagnetic compatibility standard is met.

The application provides a self-adaptive PD charging control method, system and storage medium based on a double Type-C circuit, real-time monitoring of an interface connection state, and collection of power-on current information when a peripheral device is detected to be connected, intelligent identification of a device type in combination with a preset current threshold range and a PD protocol handshake process, and then dynamic configuration of a function switching switch and a charging management module; if it is a data device, a data path is connected and power output is limited, and if it is a charging device, charging parameters are negotiated and high-power power transmission is enabled; when double charging devices are connected, intelligent power distribution and priority management are performed, and electrical parameters such as voltage, current and temperature are continuously monitored, and adaptive adjustment is triggered when the limit is exceeded. The application realizes intelligent function switching and safe power management of a double interface, effectively avoids damage caused by misplug, and improves device compatibility, system energy efficiency and user experience.

The present application relates to photovoltaic MPPT control method, device and power supply system for USB-PD protocol constraints. The method comprises: in the sampling window, the photovoltaic open circuit voltage and photovoltaic short circuit current of photovoltaic array are obtained through power conversion circuit; a single diode equivalent model about photovoltaic array is constructed, and the diode management factor and series resistance in the single diode equivalent model are defined as to-be-identified variables; the photovoltaic open circuit voltage, photovoltaic short circuit current, real-time input voltage and real-time input current are substituted into the single diode equivalent model, the optimal factor value of the diode management factor and the optimal resistance value of the series resistance are determined, the output characteristic curve of the photovoltaic array is reconstructed, the extreme value search is carried out on the reconstructed output characteristic curve, and the maximum available power estimation value is calculated; the power data object (PDO) list of the current period is generated according to the maximum available power estimation value, and the USB-PD output end is broadcasted to the power receiving end.

The invention discloses a lightning / USB4 interface automatic test device and method, and the device comprises a lower computer which supports a lightning / USB4 protocol, is provided with a multi-channel switch module, and can activate a USB channel, a DisplayPort channel and a PCIe channel at the same time; the upper computer runs test software and integrates an EDID analysis module and an NVMe serial number comparison module; the lower computer configures all channels to be in an activated state through a thunder and lightning protocol, and parallel testing of a USB protocol, a DisplayPort protocol and a PCIe protocol is achieved. And the upper computer is bound with the unique serial number of the TBT03 equipment through the EDID name, verifies the relevance of the DisplayPort equipment, and verifies the relevance of the PCIe equipment by comparing the serial number of the NVMe disk. The test time is shortened to be within 30 seconds and is improved by 4 times compared with that of a traditional method. Through dual verification of the EDID name and the NVMe serial number, the problem of confusion of multiple paths of test equipment is solved. According to the invention, thunder / USB4 interfaces are supported, and USB, DisplayPort, PCIe and PD protocol tests are covered.

The utility model relates to the technical field of PD charging, and discloses a PD application circuit suitable for fast charge output, which comprises an input circuit (110) used for receiving an input power supply signal and carrying out electromagnetic interference suppression and filtering processing on the input power supply signal, a transformer, a main control circuit (120), a synchronous rectification control circuit (130), a PD protocol circuit (140) and a USB-C circuit (150), and one end of the USB-C circuit (150) is connected with the output end of the PD protocol circuit (140), and the USB-C circuit (150) is used for receiving the charging current signal so as to charge the equipment to be charged.

The invention discloses a communication circuit, a PD protocol chip and electronic equipment. The communication circuit comprises a first clock interface, a first data interface, a second clock interface, a second data interface, a signal detection circuit, a logical operation circuit and a signal selection circuit. The signal detection circuit outputs a first detection signal when the first clock interface receives the first clock signal, and outputs a second detection signal when the second clock interface receives the second clock signal. The logic operation circuit outputs a first level signal when receiving the first detection signal, and outputs a second level signal when not receiving the first detection signal and receiving the second detection signal. The signal selection circuit selects the first clock signal and the first data output when receiving the first level signal, and selects the second clock signal and the second data output when receiving the second level signal. By means of the mode, I2C communication can be achieved through the channels except the I2C channel of the chip, and therefore on-line upgrading of the chip is achieved.

The invention provides a USB-C multifunctional docking station circuit. The USB-C multifunctional docking station circuit comprises a main control module, a HUB extension module, a PD protocol module, a power conversion module and a channel switch module. And the main control module communicates with the PD protocol module through an IC bus, obtains the charging capability of downlink equipment, and controls the power supply conversion module to output a matched voltage to realize fast charging or standard charging. The channel switch module identifies forward and reverse plugging states of the USB-C, and the main control module switches data and power supply paths according to the forward and reverse plugging states. The HUB extension module supports multi-port extension, and the master control module controls the HUB extension module to reset so as to ensure data channel identification. The power supply conversion module realizes automatic switching between a PD adapter and an uplink host power supply through an MOS tube, and system power supply and equipment power supply are independent. The circuit realizes closed-loop control from identification to power supply, has the advantages of compact structure, strong compatibility and intelligent fast charging capability, and is suitable for multifunctional USB-C expansion application.