Whether it is the booming digital energy, the constantly expanding application boundaries of motor control, or the rapidly developing optical communication, these fields are undergoing a transformation of deep integration with cutting-edge technologies such as big data analysis, cloud computing, and artificial intelligence (AI). This integration not only drives the large-scale expansion of technological boundaries, but also triggers a rapid growth in demand for intelligent solutions.

Faced with the increasingly complex challenges in these industries, MCU has become the key to breaking through. MCU is not only the core component for achieving system intelligence, but also plays an indispensable role in improving energy efficiency, optimizing performance, and ensuring security. By integrating advanced algorithms and functional modules, MCU is able to respond in real-time and process complex data, ensuring that various systems operate in an efficient and stable state. The GD32G5 series high-performance MCU launched by Zhaoyi Innovation provides solid technical support for addressing these challenges with its powerful computing power, rich peripherals, and comprehensive security mechanisms, helping various industries achieve performance optimization, performance improvement, and stable operation.

High performance and high security MCUs are key applications in three major fields

The digital energy system, which combines cutting-edge technologies such as IoT, big data analytics, cloud computing, and AI, is committed to improving energy efficiency, reducing waste, and promoting the integration of renewable energy. In this ecosystem, MCU precisely monitors power parameters such as voltage and current, and adjusts system settings in real-time to ensure efficient system operation. In addition, MCU supports multiple communication protocols, enabling seamless data exchange between devices and promoting effective integration of distributed energy resources.

For motor control, modern MCUs integrate functions such as PWM control and high-speed ADC, simplifying system design and reducing the need for external components. In addition, MCU can also process complex control algorithms in real-time, ensuring that the motor can run smoothly under various load conditions, thereby improving overall performance.

In the field of optical communication, the role of MCU cannot be ignored. Especially in the optical module, MCU is responsible for real-time monitoring of key parameters such as temperature, voltage, current, and optical power to ensure stable operation of the optical module. At the same time, MCU supports remote management and diagnostic functions, improving the operational efficiency and security of the network.

In response to the increasing demand for high-performance MCUs in these three fields, Zhaoyi has innovatively launched the GD32G5 series of high-performance MCUs. The biggest feature of this series is the application of powerful computing power, using Arm? Cortex?- M33 core, with a clock speed of up to 216MHz, built-in advanced DSP hardware accelerator and single precision floating-point unit (FPU), as well as hardware trigonometric function accelerator (TMU) and support for multiple types of hardware acceleration units. These features significantly improve data processing speed and complex computing capabilities.

Storage resources are also crucial in determining MCU performance. The GD32G5 series MCU is equipped with 256KB to 512KB embedded Flash, supports Flash dual bank function, and 128KB SRAM, as well as high-speed cache space to further enhance core processing performance.

In terms of peripheral integration, the GD32G5 series also performs well, with rich built-in interfaces and functional modules to adapt to diverse application scenarios. Of particular note is its comprehensive security mechanism, including secure over the air (OTA) updates, secure boot, secure debugging, and secure upgrades, providing a solid guarantee for data integrity and security during communication. The GD32G5 product series supports the IEC 61508 SIL2 functional safety standard and provides a complete Safety Package, including Safety Manual, FMEDA, and self checking library, to help industrial applications be safer and more reliable.

The core of optimizing digital energy efficiency

In the field of digital energy, power control is a key application direction of MCU. In this field, the GD32G5 series MCU has demonstrated significant advantages, especially in the following two key technologies:

Firstly, wave control. Taking the GD32G553 series as an example, its high-precision timer (HRTIM) supports 16 bits and 16 channels, which can meet various complex topology structures; In addition, it also supports 10 external event inputs and 8 fault input channels, which can be combined to achieve flexible wave generation modes for multiple topology structures.

The second is precise sensing. GD32G553 supports 4 12 bit ADCs with a sampling rate of up to 5.3MSPS and up to 42 channels, enabling efficient acquisition and processing of signals from various sensors. At the same time, GD32G553 also has fast system protection and auxiliary wave generation functions. It is equipped with 8 CMPs (comparators), with a propagation delay of only 15.8ns and a programmable hysteresis of 0-63mV, which can quickly respond to fault inputs or external events. In addition, GD32G553 also has four 12 bit DACs of 1Msps/15Msps, which can support up to 8 channels and can be used in conjunction with HRTIM to achieve slope compensation and other functions.

Zhaoyi Innovation has built two application solutions with GD32G553 as the core. Firstly, there is a 3.5kW DC charging scheme that uses a single GD32G553 series MCU to control a two-stage high-efficiency switching power supply topology, including a front-end single-phase totem pole PFC and a back-end full bridge LLC. The input voltage of this scheme is 220V (± 10%)/50Hz, and the maximum effective value of the input current is 17A; The output voltage is 250VDC~450VDC, supporting trickle, constant current, and constant voltage charging modes; PFC switching frequency is 70kHz, LLC switching frequency is 94kHz~300kHz.

This scheme achieves a peak system efficiency of 96.2%, a PF of 0.999, and a THD of 2.7%. Under full load constant current charging, the system efficiency is 95.6%, PF is 0.999, and THD is 2.5%. In order to ensure system security and reliability, this solution is equipped with various software and hardware protection functions, including OCP, SCP, OVP, OTP, CBC, DESAT and other system protections.

The other is a portable bidirectional energy storage inverter solution based on the GD32G5 series/GD32E5 series, which can achieve off grid discharge and grid connected charging functions. This scheme uses two GD32G5 series MCUs/GD32E5 series MCUs to control a three-level architecture (LLC+Buck/Boost+inverter/PFC), ensuring the efficiency and stability of the system. The switching frequency of its LLC is 100kHz, while the switching frequency of the Boost/Buck and inverter/PFC parts is 20kHz; The internal comparator implements overcurrent and overvoltage protection, reducing reliance on external hardware circuits and simplifying system design; The ADC frequency doubling sampling technology used can achieve more accurate average current control, and its overvoltage, overcurrent, and overtemperature protection mechanisms ensure the safe operation of the system under various working conditions.

Dual improvement of motor control performance and efficiency

From small household appliances to electric vehicles, the application of motors is ubiquitous. The motor control has extremely strict requirements for MCU, including efficient processing capability, precise real-time control, and rich peripheral interfaces. Specifically, MCU needs to support fast and accurate PWM signal generation to ensure smooth motor operation, be equipped with high-resolution ADC for real-time monitoring of current and voltage, and have sufficient storage space to run complex control algorithms. In addition, integrated security mechanisms and diverse communication interfaces are crucial for ensuring the stability and connectivity of the system.

GD32G553 perfectly addresses these challenges with its outstanding configuration. Firstly, the computing power of the MCU has significantly improved, enabling it to handle complex motor control algorithms more efficiently. Secondly, it provides abundant on-chip resources, including four 12 bit ADCs, eight comparators, and one high-performance digital filter (HPDF), which supports 8-channel/4 filter configurations and can be connected to external ∑ - Δ modulators for frequency converters and low-end servos. Finally, GD32G553 is equipped with three 16 bit advanced timers, supporting 8 channels/4 pairs of complementary modes, suitable for controlling two-phase four wire stepper motors; Its composite mode supports single resistor sampling and dual sampling of bus power, achieving precise control of the mixed mode of fast and slow attenuation of stepper motors, further enhancing the flexibility and efficiency of motor control.

GD32G553 not only meets the stringent requirements of motor control in terms of performance, but also demonstrates significant advantages in terms of functional richness and application adaptability, which can meet the complex motor control needs of various fields.

The key to stable operation of optical modules

Unlike general-purpose MCUs, optical modules have stricter standards for their dedicated MCUs in terms of chip size, analog function integration, and reliability. Zhaoyi Innovation has comprehensively configured the GD32G553 to meet the challenges of optical modules.

GD32G553 has flexible storage space. Its 512KB Flash storage supports dual bank design, without power down upgrades, ensuring data security and persistence; 128KB SRAM storage, supporting SRAM requirements for optical modules above 800GB (greater than 64KB), meeting the data processing needs of high-performance optical modules.

GD32G553 integrates rich analog and digital resources, becoming a major advantage for its competence in optical module applications. It has four 12 bit ADCs, a maximum sampling rate of 5.3Msps, and supports up to 42 channels. By using multiple sets of ADC interleaved sampling techniques, GD32G553 can achieve a sampling rate of up to 10M, perfectly meeting the requirements of high-precision and high-speed sampling. In addition, GD32G553 is equipped with four 12 bit DACs, with four channels supporting external output, providing highly flexible analog signal output capabilities suitable for various application scenarios.

For the convenience of system integration and debugging, GD32G553 provides four I2C interfaces and supports 1MHz Fast Mode Plus (Fm+) to ensure efficient communication with the upper computer.

The design of GD32G553 fully considers the demand for miniaturization packaging of optical modules such as SFP-DD/QSFP-DD, supports WLCSP packaging, and is very suitable for high-density deployment and space limited application scenarios. This feature enables GD32G553 to ensure performance while also greatly saving circuit board space and improving system integration.

In order to accelerate the development process for users, Zhaoyi Innovation provides a free development environment GD32 Embedded Builder IDE, debugging download tool GD-LINK, and multi in one programming tool GD32 All In One Programmer for the new GD32G5 series high-performance microcontrollers. Meanwhile, Arm?  KEIL, IAR, SEGGER and other mainstream embedded tool manufacturers in the industry will also provide comprehensive support for the new GD32G5 product, including development, compilation, and tracking debugging tools.

This is reported by Top Components, a leading supplier of electronic components in the semiconductor industry

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Name: John Chen

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