Disassembly report: electric small two 1000W outdoor power 1000Pro

original Charging head network editorial department Charging head network

----- Disassembly report of charging head network Part 2682 -----

preface

As a well-known outdoor power supply brand, as the leader of professional outdoor power supply products, the electric waiter has been expanding different ways of play and job security needs for consumers who love outdoor life. Today's disassembly is a 1000 Pro outdoor power supply for the electric waiter This outdoor power supply uses classic black orange color matching, which is stable and durable, and also has exquisite gold color matching, which is low-key and introverted.

This 1000Pro outdoor power supply is equipped with 1002Wh battery, which supports AC fast charging and solar fast charging, and can fully charge the outdoor power supply in 1.8 hours. The rated output power of the bidirectional inverter module is 1000W, which supports 2000W peak output. At the same time, it uses the very cutting-edge GaN bidirectional inverter technology, creating the application of GaN in the field of outdoor power supply. Let's take a look at the disassembly of this outdoor power supply.

Previously, the charging head network has made a detailed evaluation on the outdoor power supply 1000Pro of the second tier , welcome to check.

Appearance of electric second outdoor power 1000Pro

The electric second outdoor power supply 1000Pro adopts 94V-0 (the highest fire rating) material shell design, and has the classic black orange color scheme and the beige white sand gold color scheme. All of them add multiple anti-collision protection mechanisms in strict accordance with the automotive industry standards, and have a level 9 shock resistance and meet the US UL safety fall standard, It can effectively protect the boot of the vehicle from accidental collision during movement.

First of all, the center is the LCD power digital display screen, which can display the real-time input and output power, remaining power and remaining power consumption time that are currently on. The right side is equipped with a digital display switch button. Its built-in car gauge level intelligent control system (BMS) with dual monitoring chips ensures continuous and stable power output. In addition, it is equipped with a stabilized voltage output design to avoid damage to electrical appliances due to voltage fluctuations.

On the left side of the display screen are LED lights protected by rubber plugs, and the configured independent switches can realize the three gear mode adjustment through different click times. In case of an accident, it can be set to continuously flash the SOS rescue light to facilitate rescue in case of unclear vision.

The right side is the charging output port protected by a rubber plug, which supports the maximum output power of DC 12V10A 120W and is very convenient for supplying power to some on-board electrical appliances. It is also equipped with an independent control switch and indicator light, which adds a sense of safety when used.

Next is the USB port configuration, which is equipped with two USB-A interfaces to support up to 18W output power, and two USB-C interfaces to support up to 100W PD output, which can directly power mobile phones, laptops, cameras and other digital devices without carrying additional charging adapters. In addition, the port specification is clearly marked on the top of the port and the words QC 3.0 Fast Charging Protocol are clearly marked on the bottom of the port.

Two groups of five port AC strong current interfaces are all national standard interfaces, and there are safety protection doors inside. The maximum AC 220V 1000W sine wave output power is marked below the interface, and the left side is equipped with an independent switch button to make outdoor power use safer.

The right side of the back of the fuselage is equipped with two interfaces protected by rubber plugs.

Below one of the rubber plugs is the DC input port (2 * 8020 port).

The other is the 220 V 10A MAX AC strong current input port. It is difficult to predict the outdoor power consumption. Multi ports can restore power for outdoor power supply in time.

The orange plate grids on both sides of the fuselage help dissipate heat.

The internal cooling fan can be seen through the opening for active cooling.

The top is equipped with a storage handle, which is convenient for handling and does not occupy space.

The four ends of the bottom are equipped with anti-skid pads to ensure stability in use.

The voltage of outdoor power 1000 Pro AC socket of Xiaoer is 218V.

The two USB-A ports have the same performance and support power blind insertion. use ChargerLAB POWER-Z KT002 It is measured that the USB-A interface supports QC2.0/3.0, AFC, FCP, DCP, Apple 2.4A and Samsung 5V2A charging protocols.

The performance of the two USB-C ports is the same ChargerLAB POWER-Z KM003C It is measured that the USB-C interface supports the charging protocols of FCP, SCP, AFC, QC3.0/5, PD3.0, PPS and Samsung 5V2A.

And PDO message shows that USB-C port also has five groups of fixed voltage gears: 5V3A, 9V3A, 12V3A, 15V3A, 20V5A, and 3.3-21V5A one group of PPS voltage gears.

Disassembly of 1000Pro outdoor power supply for the second electric power supply

After seeing the appearance and function test of this outdoor power supply, we will disassemble it to see the internal design and materials.

First, unscrew the fixing screws of the side heat dissipation grille and remove the orange heat dissipation grille.

The heat dissipation grille is made of PC+ABS material.

Remove the cooling grille on the other side to see the internal cooling fan and battery pack.

The upper and lower fans on the left are respectively used for bidirectional inverter module and battery pack cooling.

The two fans on the right are used to heat the bidirectional inverter module and MPPT module.

Under the orange anti slip foot pad, set the screws for the housing.

The connector is used to connect to the AC input socket of the rear cover.

Disassemble and disassemble the rear cover of outdoor power supply.

The two DC input sockets on the rear cover are connected to the MPPT module through connectors.

The handle provides damping through orange rubber and can hover at any angle.

MPPT and DC power input interface.

The socket for AC charging input is connected through the connector.

The overload protector is from KUOYUH Guoyu Electronics, and the buckle is fixed inside the housing.

The overload protector is 88AR series automatic reset protector for overcurrent protection.

The shell is made of PC+ABS plastic.

Remove the rear cover. Inside, the upper part is a two-way inverter module, and the lower part is a battery pack, which is connected to the connector through wires.

Remove the fixing screws of the bottom frame and continue disassembly.

Remove the fan that heats the battery pack.

The other side of the fan is a wind guide cover, which fits into the battery pack shell.

The fan is 6012 size, and the specification is 12V 0.3A. By detecting the temperature of the heat sink and the ambient temperature, the fan speed can be intelligently adjusted to extend the service life of the fan, reduce the noise of the fan, and improve the user experience.

The fan is connected to the bidirectional inverter module through a connector for power supply.

The battery pack is connected with the bidirectional inverter module through XT90 connector.

Take out the battery module and bidirectional inverter module from the inside of the housing.

Overview of bidirectional inverter module and battery pack. The top is bidirectional inverter module, the bottom is battery pack, and the side is battery protection board.

Turn over to the other side, and between the bidirectional inverter module and the battery pack is the MPPT module, which dissipates heat through the side fan.

The other side is the bidirectional inverter module cooling fan and the MPPT module cooling fan.

Plastic sheets are pasted above the bidirectional inverter module for wind guidance, making full use of fan airflow for heat dissipation.

Disconnect the connector between the bidirectional inverter module and the battery pack and continue disassembly.

Unscrew the fixing screws and remove the bidirectional inverter module from the battery pack.

The plastic bracket is below the bidirectional inverter module, and the MPPT module is below the bracket.

Unscrew the six fixing screws at the bottom of the battery pack and remove the fixed plastic bracket.

The size of the cooling fan is 6012, and the specification is 12V0.3A.

The plastic bracket is fixed with injection molded copper nuts.

MPPT module overview, power tube heat dissipation through heat sink and fan.

The heat sink of MPPT module is equipped with a separate cooling fan.

The fan for heat dissipation of MPPT module is 4024 in size and 24V0.1A in specification.

The positive and negative pole outputs of the battery pack are connected through terminals.

Unscrew the fixing screws and remove the MPPT module.

The top of the battery pack is pasted with Mylar sheet for insulation.

The thermistor is fixed by thermal conductive adhesive and pasted with high-temperature adhesive tape.

Close up of another thermistor.

Unscrew the connection strip connecting the positive and negative poles of the battery pack to the protection board, and remove the outer battery protection board.

The battery protection board adopts a two-piece connection structure. The positive and negative poles of the battery pack are led out to the side, and the screw fixing connector is connected to power supply.

Connect the connecting piece of the positive and negative output poles of the battery pack.

The front chip of the protection plate is welded on the side of the battery pack, and a thermistor is connected to detect the battery temperature.

The protection board adopts TI Texas Instruments BQ7694003 protection chip, which is an analog front-end chip supporting 9-15 series connection. It uses digital interface, supports battery voltage, chip temperature and NTC temperature measurement, and supports the connection of three thermistors. Support battery discharge overcurrent, discharge short circuit, battery overvoltage and undervoltage protection functions.

Two SMCJ54A TVS are connected in parallel for overvoltage protection.

The outdoor power battery pack 12S8P uses 96 batteries in total. The nominal capacity of the battery is 2900mAh.

An overview of the outer battery protection board, connecting the positive and negative poles of the battery pack and the output positive and negative poles, and welding the battery protection tube, fuse and MCU chip on the protection board.

MCU chip comes from Zhaoyi Innovation, model GD32F303CCT6, which is used for battery parameter acquisition and communication functions.

Two optocouplers are used for isolated communication.

TI Texas Instruments BQ76200 high side NMOS driver is used for battery protection tube drive.

Close up of positive terminal of battery pack.

Close up of positive output fuse, specification 60A, SMD package, two in parallel.

There are ten battery protection tubes in total, five of which are connected in parallel and connected in series in opposite direction. In the middle of the picture is a thermistor, which is used to detect the temperature rise of the protection board.

The battery protection tube is from China Resources Micro, model CRSS052N08N. It is an NMOS with 85V withstand voltage and 4.6m Ω conductivity, and is packaged with TO263.

The output current detection resistance of the negative electrode welding battery pack is connected in parallel with two 2m Ω resistors.

Toggle switch for controlling the output of the battery pack.

One filter capacitor is from Aihua, MK series electrolytic capacitor, with the specification of 100 μ F 25V。

Two resistors are used for output discharge.

One MOS tube connected to the output positive pole is from New Jieneng, model NCE01P13K, which is a 100V withstand PMOS and is sealed with TO252.

The two layers of protection boards are connected by row pins.

Large area of exposed copper and tin on the back of the battery protection board dissipate heat.

The battery output is connected to the MPPT module, where the MPPT module is provided with two voltage rise and fall circuits and one voltage drop circuit.

A synchronous voltage rise and fall controller and synchronous voltage fall controller are welded on the back.

MCU chip from Zhaoyi Innovation, model GD32F303CCT6, is used for solar MPPT control.

Both two-way synchronous voltage rise and fall controllers are from Yardino, model LT8708. It is a two-way synchronous four switch voltage rise and fall controller, which supports 80V working voltage, and is suitable for high-voltage synchronous voltage rise and fall converter, two-way charging system and automobile 48V system.

Below the heat sink is a switch tube with two ways of voltage rise and fall, and a thermistor is also fixed on the heat sink for temperature detection.

Close up of two filter inductors and voltage rise and fall inductors, with the bottom insulated by bakelite board and fixed with glue.

Remove the heat sink fixed by the switch tube. Below the heat sink are two channels of synchronous voltage lifting switch tubes.

The heat sink is pasted with a heat conduction pad to dissipate heat.

The 16 switch tubes under the heat sink are all from Infineon, model BSC0805LS, which is a 100V NMOS with a resistance of 7m Ω.

The magnetic ring voltage rise and fall inductance and filter inductance are insulated by electric board at the bottom.

Close up of a 15A fuse at the input end.

Close up of 7A fuse at power input terminal.

The filter capacitor is from AiSHi Aihua, and the specification of two capacitors is 63V470 μ F。

The other two are 80V220 μ F。

The specification of one filter capacitor is 80V220 μ F。

Large area of exposed copper on the back of MPPT module is used for heat dissipation, and MLCC capacitor filter is welded.

A step-down circuit is also welded on the MPPT module for 12V output of the cigarette lighter.

The main control chip of the step-down circuit is from Baoli Micro, model PL59011. It is a synchronous step-down controller with an input voltage of 100V. It supports 60V output voltage, and the switching frequency is adjustable. The chip has a number of programmable protection functions, including output overload protection and cycle by cycle overcurrent protection, as well as output overvoltage protection and overheating protection. It is suitable for 48V non isolated converter, vehicle application, USB-C fast charging and industrial motor drive.

The switch tube for voltage reduction is from Infineon, model BSC0805LS. Two switches are connected in parallel, and a total of four switches are used to form a half bridge.

The output filter capacitor is VPX series solid capacitor from Yongming, and the specification is 220 μ F 35V。

Next is the disassembly of the bidirectional inverter module, which is placed inside the iron support.

Mylar insulation is used between the support and PCBA module.

The cooling fan is from Huaxia Hengtai Electronics, model DA06025B12UG, specification 12V 0.45A.

Paste plastic sheets on the two cooling fins to guide wind, making full use of air flow.

A list of bidirectional inverter modules. On the top is the DC end, the input wire, filter capacitor and primary switch tube are welded, and on the bottom are the switch transformer and filter inductor. On the left side of the primary switch tube radiator is the full bridge LLC circuit, as well as the resonant capacitor and resonant inductor. The totem pole PFC circuit is welded on the lower heat sink, and the bidirectional inverter module adopts the totem pole PFC plus full bridge LLC scheme. The bottom is for AC input/output switching, and the lower right corner is welded with high-voltage filter capacitor.

Half bridge driver is welded on the back of bidirectional inverter module to isolate communication chip.

A small board shall be welded on the side of the input end for boosting and synchronous rectification of the bidirectional inverter module or buck rectification and full bridge LLC drive signal output.

The input wire and filter capacitor are fixed with glue.

Close up of positive input fuse.

The input filter capacitor is from Lilong.

Specification: 330 μ F 63V, a total of 7 in parallel.

Three 1m Ω resistors are connected in parallel for input current detection.

Eight switch tubes are fixed on the heat sink.

The switch tube is from New Jieneng, the model is NCEP039N10M, NMOS, the withstand voltage is 100V, the resistance is 3.65m Ω, and it is sealed with TO220.

Two LLC transformers are connected in parallel at the low voltage side and in series at the high voltage side. The current transformer coil is also fixed on the lead at the high voltage side.

Close up of magnetic ring current transformer.

On the other side are resonant inductors, resonant capacitors and full bridge LLC switches.

The resonance inductance is wound with PQ35 magnetic core.

Three resonant capacitors from Xiamen Fara Electronics are MMKP82 series double-sided metallized polypropylene film capacitors, small in size and strong in performance, with a specification of 0.027 μ F 1000V。

Four GaN switch tubes are fixed on the heat sink on one side for full bridge LLC and inverter rectifier functions. Thanks to the high frequency and high efficiency of gallium nitride, the heat sink is very thin.

Gallium nitride switch tube is from GaNext Gallium Future. The model is G1N65R150TA-N. It is a 650V withstand voltage and 800V peak withstand voltage gallium nitride switch tube. Its conductivity is 150m Ω. It is packaged with TO220 and is at the leading level in the industry. The device has a solid grid, which can simplify the design of grid drive, providing the best performance and outstanding reliability.

Gallium future G1N65R150TA-N grid supports ± 20V withstand voltage without negative pressure shutdown, and is compatible with traditional controllers. High switching speed can reduce switching loss, and low gate charge can reduce drive loss under high-frequency switching. The reverse freewheeling has a very low VF, reducing the loss of dead time. Low reverse recovery charge is suitable for hard switching bridge applications, and 800V peak withstand enhances the reliability of devices.

Behind the heat sink is a small controller board, which is welded with a main control chip for bidirectional inverter module boost and synchronous rectification or buck rectification and full bridge LLC drive signal output.

A four operational amplifier is welded on the back of the small plate.

The main control chip is from TI Texas Instruments. It is a C2000 series real-time microcontroller. The model is TMS320F280049. The chip's main frequency is 100MHz. It is internally integrated with FPU and CLA, and has 256KB flash memory and 100KB RAM. It can be used for industrial motor drive, motor control, photovoltaic inverter, digital power supply, electric vehicle and transportation, automatic control, induction and signal conditioning.

The op amp chip soldered on the back is a universal four op amp, LM2902A, from SAP, which supports rail to rail output and can be used as a comparator.

Two transformers are welded between the small plate and the GaN switch tube for isolating the drive.

Two ANSOME FAN3224T high-speed low side drivers are used to drive the isolation transformer.

Weld a nano core micro isolation amplifier (NSi1311) next to the isolation transformer for voltage detection and isolation transmission.

The other side is welded with a Rongpai digital isolation chip, model π 131S61R, with three transmission channels.

Side view of bidirectional inverter module, welding high-voltage filter capacitor and PFC inductance. A thermistor is welded on the side of the transformer to detect the temperature.

Two filter capacitors from Fengbin, specification 270 μ F 500V, two in parallel, used for inverter output filtering and PFC filtering.

The PFC inductance covered the switch tube, so it was welded and removed for further observation.

Remove the PFC inductance by welding. The inductance is wound by magnetic ring, and the bottom is padded with electric board for insulation. Gallium nitride totem pole PFC has high switching frequency, small size and light weight of PFC inductance. Gallium nitride totem pole PFC can achieve a conversion efficiency of more than 99%, with low loss. Light and thin heat sinks can be used, which ultimately reduces the weight of bidirectional inverter.

The thermistor is used to detect the internal temperature rise of the bidirectional inverter module.

After removing the inductance, start to observe the totem pole PFC circuit, and weld four switch tubes in total.

Two GaN switch tubes are from GaNext Ga Future. The model is G1N65R050TB-N. It is a 650V withstand voltage and 800V peak withstand voltage GaN switch tube. Its conductivity is only 50m Ω. It is packaged with TO247, which is at the leading level in the industry. And it has a solid grid, which can simplify the design of grid drive, providing the best performance and outstanding reliability. It is used as the fast half bridge of totem pole PFC.

Gallium future G1N65R050TB-N grid supports ± 20V withstand voltage without negative pressure shutdown, and is compatible with traditional controllers. High switching speed can reduce switching loss, and low gate charge can reduce drive loss under high-frequency switching. The reverse freewheeling has a very low VF, reducing the loss of dead time. Low reverse recovery charge is suitable for hard switching bridge applications, and 800V peak withstand enhances the reliability of devices.

The other two MOS tubes are from Shangyangtong, model SRC65R052FB, a 650V withstand super junction NMOS, with a resistance of 52m Ω, TO247 package, and are used for slow half bridge.

Weld the control panel at one side of the radiator.

A four op amp chip is welded on the back of the small board.

The controller is from NXP NXP, model MC56F82736V, used for totem pole PFC control and output modulation.

The four op amps are from TI Texas Instruments, model LMV824, which is a low voltage, low power rail to rail output operational amplifier.

The side welding filter circuit and output switching circuit of the bidirectional inverter module.

Weld a small board close to the filter capacitor and fix it with white glue.

Remove the vertically welded small plate.

A current sampling chip is welded on the front of the small board.

The back of the small board is for connection wiring, and the current wiring is widened.

The current sensor chip is from ACEINNA Xinna, silk screen MCA11503, model MCA1101-50-3. It is a 50A range, 3.3V power supply isolated current sensor, and uses AMR anisotropic magnetoresistance technology.

Weld a relay on the side of the small board to cooperate with the thermistor to suppress the surge current.

The relay is HF32F-G series from Hongfa, with rated current of 10A and coil voltage of 12V.

NTC thermistor is used to restrain surge current. The relay shortcircuits the thermistor to reduce loss.

One film capacitor from Shenzhen Suntech, with the specification of 1.5 μ F 630V。

The common mode inductance is wound with flat copper wire. The design of EMI part adopts two-stage common mode inductance, which can meet the requirements of Class B with X/Y capacitor.

Current transformer is used to detect input and output current.

The blue in-line Y capacitor is from ISND Huaxinan.

14K511 varistor is used for surge protection.

The relay for I/O switching is from Hongfa, model HF140FF-G, two sets of normally open contacts, rated current 16A, coil voltage 12V.

The AC input end of the inverter is welded with a fuse and insulated with a heat shrink tube.

The auxiliary power supply is welded on the side of the bidirectional inverter module.

The main control chip of auxiliary power supply is from Infineon, model ICE2QR2280G-1. It is a quasi resonant power supply chip with 800V switch tube, active burst mode, and no-load power consumption is less than 100mW.

The transformer adopts PQ20 magnetic core.

The output rectifier diode is from Yangjie, the model is MBR20100CD, and the specification is 100V 20A.

Two optocouplers are used for isolated communication.

At a glance inside the side quick charging panel, the upper left corner is the cigarette lighter output interface, and the upper right corner is the aluminum base plate for LED lights. The AC socket is located below the cigarette lighter output interface, and the fast charging panel is located on the right and below for screen display and function control.

Inside the panel are injection molded copper nuts.

The cigarette lighter interface is fixed by screws, and the welded XT30 connector is used to connect the MPPT module for power supply.

Close up of XT30 connector for power supply.

Close up of the cable connecting the quick charge panel to the LCD display screen and LED lights.

LED lights use aluminum substrate to enhance heat dissipation, and holes are wired through LCD screens.

LED lights are fixed on the aluminum substrate by screws, and the driving circuit and function keys are also welded on the aluminum substrate.

Close up of the back of the aluminum substrate, bare metal surface, enhance the heat dissipation capacity.

LED lights are fixed on the aluminum base plate through thermal conductive adhesive and screws.

PT4115 is used to reduce voltage and supply power for LED lights. It has 1.2A output current, supports 30V input voltage, and is packaged with SOT89-5.

Close up of two patch keys, copper pillar lengthening design.

Two drive chips are soldered on the LCD screen PCB.

The LCD screen is connected by welding.

The drive plate is welded with two HT1621B LCD controllers for screen display drive.

The live wire and the neutral wire of the AC output socket are connected by welding, and the ground wire is connected by the plug connector and fixed inside the housing by screws.

Two USB-A and two USB-C bus bases are welded on the front of the fast charging panel, and the main control MCU, fuse and other components are also welded.

The back of fast charging panel is welded with step-down inductance and filter capacitor.

List the positions of the master MCU, weld the master MCU, and reserve the bonding pad of the wireless communication module on the right side.

The main control chip, GD32F303VET6, is from Zhaoyi Innovation. It is a 120MHz MCU with a built-in Cortex-M4 core, 256KB FLASH and 64KB SRAM, and supports PWM signal output. It is used for status display and control functions.

A memory is soldered on the back of the master MCU.

The memory comes from Zhaoyi Innovation. The model GD25Q64ESIG is an 8MB memory for storing configuration information.

The upper part of the reserved wireless communication module pad is the clearance area.

List of USB-C and USB-A step-down circuits, USB interface welded on the front, corresponding step-down circuit, fuse and VBUS switch tube.

The back is welded with step-down inductance, corresponding filter capacitor and filter inductance.

The power input end is sheathed with a magnetic ring to suppress interference, and is sheathed with a heat shrinkable tube for protection. The welding part of the input line is coated with glue for reinforcement.

Close up of the fuse at the input end, one F7 at the lower left corner is used for global over-current protection, which is 15A. F5 and F6 are used for over-current protection of the USB-C interface step-down circuit, and the specification is 4A. F1 main control panel step-down power supply overcurrent protection, specification 3.5A.

The step-down controller used for the USB-C port is from MPS, MP9928. It is a 60V input synchronous step-down controller, which is matched with a protocol chip for USB-C output. The chip has programmable switching frequency, supports cycle by cycle current limitation, supports output overvoltage protection, and has high-precision overheat protection function.

Two step-down switch tubes are connected in parallel, and the model is Infineon BSC0805LS.

The USB-C interface protocol chip is from Zhirong Technology, model SW2303. It is a highly integrated Type-C interface/Type-A interface fast charging protocol chip, which supports mainstream fast charging protocols such as PD, QC, FCP, high and low voltage SCP, AFC, SFPP, and PE, and supports optocoupler feedback and FB feedback.

SW2303 integrates CV/CC control loop, Type-C interface logic, fast charging protocol controller, and various safety protection functions. Cooperate with ACDC or DCDC and a few peripheral components to form a complete high-performance Type-C/Type-A fast charging solution.

The charging head network learned through disassembly that Zhirong SW2303 was also Huakesheng mini folding 20W fast charging 、 Polar Krypton 83W 1A1C dual port fast charging car charger 、 Lvlian 40W dual C-port fast charging car charger 、 Yilike 45W PD fast charging 、 Kexun mini 20W PD fast charging charger etc. Use of dozens of products 。

The output VBUS switch tube is from Dongyuan, the model is FKBA3048, it is a 30V NMOS with a resistance of 1.6m Ω, and it is packaged with PRPAK5 * 6.

USB-A and USB-C interfaces are fixed by via welding.

The input filter capacitor is from AiSHi Aihua.

Input filter capacitor specification is 100V220 μ F。

The fast charging USB-A port step-down chip adopts English chip IP6525T, which is a step-down converter with integrated synchronous switch and supports four kinds of output fast charging protocols. Its built-in power MOS has a step-down conversion efficiency of 98%. The input voltage range is 9.6V to 32V, and the output voltage range is 3V to 12V. The maximum output power can be 18W.

In addition, it can automatically adjust the output voltage and current according to the identified fast charging protocol. Typical output voltage and current are 5V/3.4A, 9V/2.0A, 12V/1.5A, providing a complete solution for vehicle charger, fast charging adapter, and smart plug.

It is learned from the disassembly of the charging head network that the Yingjixin IP6525T is also Samsung AFC dual port fast charging car charger 、 Bosch SC380A dual USB port mobile charger Yes. In addition, Yingjixin fast charging chip can also be used in charger, mobile power supply, energy storage power supply and other fields AUKEY 、 RAVPOWER 、 Maiduoduo 、 Aohi 、 Lvlian 、 Beisi 、 millet And other well-known brands Dozens of products adopt 。

The output filter capacitance specification is 100 μ F 25V。

The specification of one fuse is 3.5A.

A step-down controller from Rexa, model ISL8117, is a 60V input voltage synchronous step-down controller, which supports programmable soft start, programmable switching frequency, external synchronous signal input, no external current sampling resistance, and built-in complete protection function.

Two step-down switch tubes are from Infineon, model BSC0805LS.

MPS MP4541 is used for the step-down power supply of the main control MCU. It supports 80V input voltage, up to 30V output voltage, and 0.8A output current. The chip is integrated with step-down MOS tubes, built-in overcurrent protection and short circuit protection, and simple peripheral components.

Filter electrolytic capacitors are from AiSHi Aihua, with specifications of 100 μ F 25V and 10 μ F 100V。

DTM4407 is used for power supply control.

The two filter capacitors are VPX solid capacitors from Yongming, and the specification is 220 μ F 35V。

A current sampling amplifier is used to collect the output current of the interface.

Take a look at all of them and have a family photo.

Disassembly summary of charging head network

The electric second 1000Pro has a built-in 1002Wh battery. The built-in two-way inverter supports 1000W output power and 2000W peak output power. It also has AC direct input charging and solar charging, which can fully charge the outdoor power supply within 1.8 hours. The electric second 1000Pro outdoor power supply also has USB-C and USB-A fast charging, USB-C supports 100W fast charging output, USB-A supports 18W fast charging output, and the DC vehicle charging interface supports 12V10A output, meeting the outdoor power demand of a variety of equipment.

Through disassembly of the charging head network, it is learned that the outdoor power supply of the electric small two 1000Pro adopts a modular design, which is composed of battery module, MPPT module, two-way inverter module and DC fast charging module. Among them, the battery pack is connected in 12 series and 8 parallel, and TI Texas Instruments BQ7694003 protection chip is used, together with Mega Easy innovative MCU for communication control.

The bidirectional inverter module adopts the design of gallium nitride based totem pole PFC and full bridge LLC, the totem pole PFC controller is from NXP MC56F82736V, and the LLC controller is from TI Texas Instruments C2000 series TMS320F280049. Among them, the full bridge LLC circuit uses four Ga future G1N65R150TA-N TO220 encapsulated GaN switches, with a conductivity of 150m Ω. The totem pole PFC fast half bridge uses two GaN future G1N65R050TB-N TO247 encapsulated GaN switch tubes, with a conductivity of 50m Ω, both at the leading level in the industry.

MPPT module is controlled by Zhaoyi innovative MCU and equipped with two Adeno LT8708 two-way synchronous voltage rise and fall controllers for DC input and solar energy input to charge outdoor power supply. Built in Baoli Micro PL59011 synchronous step-down controller for 12V output step-down. The DC fast charging module uses Zhirong Technology SW2303 protocol chip with MPS MP9928 synchronous step-down controller, USB-A uses Yingjixin IP6525T, and all low-voltage switches are from Infineon.

Multiple fans are used inside the outdoor power supply to speed up air circulation and take away the heat generated during charging and discharging. The interior is fixed with a metal frame, which is stable and reliable. The battery pack is fixed with a frame, which is reliable in structure. The GaN bidirectional inverter module significantly reduces the switching loss, reduces the heat dissipation demand, improves the conversion efficiency, and improves the overall competitiveness of the product. The whole design uses sufficient materials, and EMI meets the requirements of Class B, ensuring the quality and improving the use of User experience.