ForewordThe inverter is a device that converts DC power into AC power to provide stable and safe power for various equipment, and is often used in photovoltaic energy, new energy vehicles, outdoor power supply and other fields. However, for a long time, inverter-related chips have been monopolized by overseas manufacturers, and they may face the risk of stuck. But fortunately, domestic manufacturers are catching up, constantly breaking through this situation, and gradually breaking the technical blockade of overseas enterprises. So what products have built-in domestic "cores" in 2023? Here's a closer look. The cases in the article are listed in alphabetical order in no particular order. Baseus Beyi Charge 500W Super Silicon Vehicle Inverter
Baseus this super silicon vehicle inverter supports 500W output power, the matching DC input line has the power automatic selection function, the output power is 150W when connected to the cigarette lighter, which can meet the use of laptops and mobile phones, and can be connected to electric kettles, rice cookers, Xiaoice boxes and other electrical appliances when using battery clamps to connect batteries. The inverter is a pure sine wave output with good compatibility. The inverter has a 1A1C fast charging interface and two AC output interfaces, which can meet the needs of four devices at the same time. Related reading: Teardown Report: Baseus Beyi Charge Super Silicon Vehicle Inverter 500WBuilt-in domestic chip caseAng Bao OB2158
OB2158 is a high-performance constant-voltage constant-current synchronous step-down converter with built-in protocol, which supports a variety of fast charging protocols and PD30 fast charging protocol, support 5 9 12V output, support Huawei SCP protocol, built-in line loss compensation, working voltage 95 to 30V, built-in switch for complete protection. Runshi RS393
Runshi RS393 is a low-power voltage dual comparator, which works with another Shengbonwei SGM722 to achieve protection detection function. San Bonwe SGM722
The SGM722 is a track-to-rail dual op amp. The chip is optimized for low-voltage, low-noise, and low-power operation. Chipsea Technology CS32F031K8U6
The CS32F031K8U6 MCU is used for inverter output modulation, and the CS32F031 series microcontroller uses a high-performance 32-bit ARM Cortex-M0 core with built-in up to 64K bytes of Flash and 8K bytes of SRAM, and a maximum operating frequency of 48MHz. Chipsea CS32L010F8
The other Chipsea MCU CS32L010F8 is used to drive the LED digital tube, which is a 32-bit low-power MCU with an M0 core, with a maximum operating frequency of 24MHz, built-in 64KB flash memory and 4KB SRAM, and is packaged in QFN20. EG3525S
EG3525S is used for boost control and is available in an SOP16 package. This chip has a built-in 51V voltage reference, 100Hz 500kHz wide frequency oscillator, soft start circuit, error amplifier, PWM comparator, undervoltage blockade circuit and power tube output drive circuit and many other functions. EG2106
One Yijing EG2106 is used to output the modulation MOS tube drive. This is a cost-effective MOS tube and IGBT tube gate driver chip, which integrates logic signal input processing circuit, under-voltage protection circuit, level shift circuit, pulse filter circuit and output drive circuit, which can be used in brushless motor controller and power supply DC-DC drive circuit. Boke 2000W bidirectional AC-DC gallium nitride inverter
This 2000W bidirectional inverter is designed with an industry standard size enclosure with screw terminals for both AC input and output and DC input and output. The bidirectional inverter comes with a cooling fan to dissipate heat from the internal power devices and reduce the temperature rise. The bidirectional inverter is designed to be used with a 48V battery pack, and supports the parallel use of multiple units on the AC side to increase the output power. Related Reading: Teardown Report: Platinum Branch 2000W Bidirectional AC-DC GaN InverterBuilt-in domestic chip caseNOVOSENSE NSI1311
NOVOSENSE NSI1311 is an isolation amplifier for voltage sensing and isolated transmission. NOVOSENSE NSI6602BD
NOVOSENSE NSI6602BD is a dual-channel isolated gate driver IC for driving switch transistors, supporting 2MHz switching frequency applications, and providing 5000VRMS isolation, supporting 4A sink current and 6A source current output. NOVOSENSE NSI6602AD
NOVOSENSE NSI6602AD is an isolated dual-channel gate driver IC that can be used for full-bridge LLC isolated drive. Rongpai 122u61
Rongpai 122U61 is an isolation chip with 5000Vrms isolation voltage, which is a two-way isolated communication. Rongpai 120m61
Rongpai 120M61 is a dual-channel digital isolator for isolated communication, supporting 10Mbps transmission rate and 5000VRMS AC isolation. Xinjin Electronics CC6921
The CC6921 is an isolated Hall current sensor for bidirectional inverter output current sensing. Greenlink 150W on-board inverter
This inverter has two AC output sockets and supports 150W output power. The 1A1C fast charging interface supports 30W output power and can power four devices at the same time. The inverter is powered by car charging input and comes with 13 meters input line, inverter built-in digital display screen, can display the working status in real time, always know the battery voltage. Related reading: Teardown report: UGREEN 150W on-board inverterBuilt-in domestic chip caseGlowing Micro MCU
Silk screen U3HYGFH glow micro MCU is used for output modulation. Yingjixin IP6538
Yingjixin IP6538 is a fully integrated fast-charging SoC buck chip, which is used for USB-C and USB-A interface step-down fast charging output, and the chip integrates a synchronous step-down converter and supports USB PD30 fast charging, support QC20/3.0. Support Huawei FCP SCP fast charging protocol, support Samsung AFC fast charging, support VOOC fast charging and SFCP fast charging. The built-in upper tube conduction resistance is 9 mOhm, the lower tube conduction resistance is 8 mOhm, and the working frequency is fixed at 150kHz. Summary of the charging head networkIn recent years, we can clearly feel the overall progress of the domestic chip industry. Although initially starting from the low-end market, domestic chip manufacturers have gradually penetrated into the high-end market with unremitting efforts. Nowadays, domestic chips have the power to fight with overseas manufacturers. In addition, this transformation is not only reflected in the inverter, but also extended to other key fields such as communications, computers, industrial control, medical, precision instruments and so on. It is believed that in the future, these domestic chip manufacturers can work together to realize the localization of full-link chips and truly achieve independent and controllable. Related reading: 1. What are the differences in design between the three micro photovoltaic inverters?