Recently, Shuichip Electronics has officially launched the DSP and digital power control chips – M2025 and M3010. This article will focus on introducing these two products, as well as the control implementation scheme of the single-chip M3010 based on non-bridge PFC and LLC, and the single-chip implementation scheme of M2025 based on micro-inverters, PFC, LLC, and CLLLC, covering various application scenarios such as communication, industrial control, photovoltaics, energy storage, micro-inverters, and servers.
It is reported that Shuichip Electronics’ DSP chips are fully comparable to TI’s C2000 series chips, and the digital power control chips will fully match TI’s digital power controller series chips. Notably, both the DSP chip and the digital power control chip from Shuichip Electronics are expected to enter mass production and sales this year, aiming to become the first domestic chip company with a full range of DSP chip products with independent intellectual property rights.
01——M2025
M2025 is a digital signal processing chip developed based on the ARM core, with peripheral resources comparable to TI’s C2000 series products such as F280025 and F2813X. It has a maximum clock frequency of 80MHz, built-in hardware 3P3Z for rapid loop calculations, 64KB of internal FLASH, 32KB of internal RAM, and built-in hardware CRC verification to ensure the safety of code execution to the maximum extent.
Product Highlights:
• High performance and multifunctional
• Integrated high-speed, low-latency analog and control peripherals
• Built-in hardware loop computation accelerator
Performance Parameters:
• Integrated ARM Cortex
– Maximum operating frequency: 80 MHz
– Built-in Coresight debugging interface
– Provides interrupt controller
• Fixed-point hardware accelerator
– CRC engine and instructions
– Supports 3P3Z compensator
• On-chip memory
– 64KB FLASH
– 32KB RAM
• Clock monitoring system
• 3.3V single power supply
• System peripherals
• CLB
• Rich communication interfaces
• Analog system
– Two 4 MSPS 12-bit ADCs
– Two 12-bit DACs
– Four window comparators
– Four programmable gain amplifiers
• Enhanced control peripherals
• Temperature range: -50℃ to 125℃
(1) Interleaved Totem Pole PFC Application
Features:
• High reliability and stability of ADC module, reducing output ripple
• Supports PWM CBC and OST wave shaping functions, maximizing system safety
• Supports PWM jitter, reducing EMI spectral spikes
• Supports loading programs directly into RAM for faster execution
• Supports hardware mathematical operations, minimizing loop calculation time
• Widely used in PCs, servers, communication/UPS, rail, bricks, charging piles, OBC, and other fields
(2) Micro-Inverter Application
Features:
• Small circuit size, simple structure, easy to install and maintain
• High precision and stable ADC, ensuring maximum tracking efficiency
• Supports complex anti-islanding algorithms and high/low voltage ride-through algorithms
• Supports valley switching, ensuring conduction at every valley, improving system efficiency
• Supports various external communication modes
• Widely applicable in power, communication, transportation, agriculture, and other fields
(3) Full-Bridge LLC Application
Features:
• Ensures hardware implementation of loop calculations through hardware 3P3Z, maximizing loop operating speed
• Circuit control adopts PFM+PWM mode, with hiccup mode for light loads to improve efficiency
• Uses variable dead time to balance reliability and efficiency
• Supports hardware TZ, ensuring power hardware safety under extreme conditions
• External communication ports use SCI, CAN, SPI, etc.
• Widely used in PCs, servers, communication/UPS, rail, bricks, charging piles, OBC, and other fields
(4) Bidirectional DCDC (CLLLC Topology) Application
Features:
• High precision and stable ADC, ensuring low system ripple
• PWM supports hiccup output, allowing the system to operate in no-load mode
• Equipped with fast hardware protection functions to maximize system safety
• The system supports various external communication methods such as CAN, SCI, SPI, etc.
• Mainly used for peak shaving, load sharing, emergency backup, etc., capable of bidirectional energy regulation, widely applied in PCS, charging piles, and other fields.
02——M3010
Shuichip Electronics M3010 is a single-chip integrated non-bridge PFC+LLC controller digital control chip.
Interleaved Totem Pole PFC + Full-Bridge LLC
Features:
• Single low inductance path, single ripple is larger, interleaved ripple coefficient is less than 0.3
• Single current CBC and OST protection, CBC handles grid anomalies without false triggering shutdown, extreme conditions can be protected by OST hardware
• Comprehensive software protection for effective value overcurrent, effective value overvoltage, effective value over power, temperature, etc.
• Software introduces feedforward duty cycle and current sampling DCM calibration, autonomously determines CCM and DCM modes, improving light load THD
• One phase can be turned off under light load to improve light load efficiency
• Dynamic current sharing between two phases ensures consistent current
• Voltage loop fast loop function ensures stable bus voltage under sudden load
• Switching frequency jitter reduces EMI spectral spikes
• CBC protection of current and input feedforward ensures reliability under immediate and current grid anomalies
• Software power frequency notch filter removes 100Hz ripple, enhancing voltage loop bandwidth
• Control loop consists of output voltage loop and output current loop, adopting dual-loop competition mode
• Circuit control adopts PFM+PWM mode, with hiccup mode for light loads to improve efficiency
• Uses variable dead time to balance reliability and efficiency
• Closed-loop soft start avoids overshoot, adapting well to different characteristic loads
• Provides multiple protection mechanisms, including undervoltage and overvoltage protection, multi-level overcurrent protection to enhance dynamic performance, overload protection, over-temperature protection, etc., with configurable restart time for flexible applications
• External communication ports use SCI, CAN, SPI, etc.
Breaking Technology Monopoly to Accelerate Domestic DSP Replacement
In the context of the digitalization of power supplies, DSP has become a fundamental component in fields such as communication, computing, and consumer electronics. Developing DSP chips requires not only strong chip hardware design skills but also expertise in compilers, instruction sets, and other software-related capabilities, making the R&D technical threshold quite high. Shuichip Electronics has a complete chip design team, including SoC/DSP architecture design, DSP verification, layout design & packaging testing design, as well as digital power/motor hardware and software system development personnel, with rich experience in digital power chip R&D.
Shuichip Electronics’ M2025 and M3010 fully realize independent intellectual property rights, further breaking the foreign technical monopoly on high-end control DSP chips and digital power chip design, contributing to the development of new productive forces in China.
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2、Shuichip Electronics Reconfigurable Digital Power Chip Developer Conference held to promote open-source ecosystem construction
3、Many mainstream customers adopted! Overview of innovative applications of Shuichip Electronics’ fully digital fast charging chip
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5、Shuichip Electronics fully digital fast charging solution fully open-sourced
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