Charging 'core' peak! Hang Shun HK32F407, with its super strong computing power, starts the charging pile preferential plan

I. Scale and Growth 

With the global number of new energy vehicles continuously climbing, the charging AC pile market is showing rapid growth. According to relevant data, it is expected that by 2025  year, the global new energy vehicle charging pile market is expected to reach 200  US dollars, approximately, 2021-2025 The compound annual growth rate during the period will exceed 30% In China, the vigorous promotion and application of new energy vehicles have led to sustained strong demand in the charging AC pile market. More and more companies are beginning to deploy in this area, driving the continuous expansion of the overall market size. 

II. Market Applications 

(1) Residential Communities: Provides convenient charging services for new energy vehicle owners, meeting the charging needs of vehicles parked overnight. Owners can charge their vehicles while resting at home, facilitating daily use. 

(2) Commercial Venues: Such as shopping malls, supermarkets, and office buildings. Installing charging AC piles can attract more new energy vehicle owners to consume, increasing traffic and turnover for commercial venues. It also provides convenience for owners, improving the service quality and competitiveness of commercial venues. 

(3) Industrial Parks: Facilitates charging for new energy vehicles of employees in the park, helping to improve employee satisfaction and work efficiency. In addition, logistics vehicles in the park can also use charging AC piles to charge, reducing operating costs. 

(4) Public Areas: Including parking lots, roadside parking spaces, and other public places. The reasonable layout of charging AC piles can improve the city's charging infrastructure, improve the convenience of using new energy vehicles, and promote the further promotion and popularization of new energy vehicles. 

III. Solution Overview 

Hang Shun HK32F407 is a high-performance ARM Cortex-M4 core MCU with a main frequency of 168MHz and has up to 1MB Flash and 256KB SRAM , possessing powerful data processing and storage capabilities that can meet the complex computing and data storage needs of charging AC piles. Based on HK32F407 the charging AC pile solution, its architecture mainly includes the following parts: 

(1) Main Control Unit: With HK32F407 as the core, it is responsible for the control and management of the entire charging AC pile, running various charging algorithms and control logic to achieve precise control and management of the charging process. 

(2) Charging Module: According to the instructions of the main control unit, it converts AC power into DC power and charges the battery of the new energy vehicle. At the same time, it monitors charging current, voltage, and other parameters in real time and feeds the data back to the main control unit. 

(3) Communication Unit: It has multiple communication interfaces, such as Ethernet, CAN 、485  , etc., which can realize data communication and information interaction between the charging AC pile and cloud servers, mobile terminals, and other devices, facilitating users to remotely monitor the charging status, query charging information, etc., and also facilitating operation and management personnel to remotely manage and maintain the charging AC pile. 

(4) Display and Operation Unit: Through TFT display screen or touch screen and other human-machine interaction devices, it displays charging status information, charging capacity, charging fees, etc. Users can set charging parameters, start and stop charging through buttons or touch operations. / 停止充电等操作。

(5) Protection and Control Unit: According to the instructions of the main control unit, it realizes the overcurrent, overvoltage, short circuit, and other protection functions of the charging AC pile, and controls the charging and discharging process of the charging module to ensure the safety of the charging AC pile and new energy vehicles during the charging process. 

IV. Core Advantages of the Solution 

(1) High-Performance Computing Capability: 168MHz high main frequency and built-in single-precision floating-point unit FPU , enabling HK32F407 to quickly process a large amount of charging data, run complex charging algorithms in real time, such as battery state estimation algorithms, improve the accuracy and efficiency of charging control, and ensure the stability and reliability of the charging process. 

(2) Rich Peripheral Interfaces: Provides a variety of communication interfaces and peripheral functions, such as Ethernet, CAN 、485、 UART 、 USB OTG , etc., facilitating connection and communication with various devices, meeting the needs of charging AC piles and other system integration, and realizing wider applications and functional expansion. 

(3) High-Precision Sampling and Monitoring: It has multiple 12  bit ADC channels, which can achieve high-precision sampling and monitoring of charging current, voltage, temperature, and other parameters. The sampling error is small, the measurement accuracy is high, providing a reliable data basis for accurately evaluating the charging status and performing precise control, effectively ensuring the safety and efficiency of charging. 

(4) Powerful Security and Protection Functions: Built-in hardware encryption module, such as AES256、 TRNG Charging data and communication data can be encrypted to prevent data leakage and tampering, ensuring the information security of the charging AC pile. At the same time, it has a complete protection mechanism, capable of quickly responding to abnormal situations during the charging process, and realizing multiple protection functions such as overcurrent, overvoltage, and short circuit, ensuring the safe operation of the charging AC pile and new energy vehicles. 

(5) Low-power design: Supports multiple low-power modes, such as sleep mode and shutdown mode, and can automatically switch according to the working status of the charging AC pile, reducing system power consumption, extending the service life of the equipment, and improving the energy efficiency ratio of the equipment. This is especially suitable for public charging scenarios and residential areas with strict power consumption requirements. 

(6) Wide operating temperature range: Can operate stably within -40 ℃ ~105 ℃ temperature range, adapting to various harsh environmental conditions, meeting the use needs of charging AC piles in different regions and climatic environments, and ensuring that the performance and reliability of the equipment are not affected under extreme temperatures such as high and low temperatures. 

Product System Block Diagram 

Physical Diagram 

Hang Shun HK32F407 Series MCU Main Specifications 

• ARM® Cortex®-M4 Core 
• Maximum Clock Frequency: 168 MHz
• 24  bit System Tick Timer 
• Operating Temperature Range: -40 ° C ~ 105 ° C 
• Operating Voltage Range 
• Dual Power Domains: Main Power VDD is 1.8 V ~ 3.6 V , Backup Power VBAT is 1.8 V ~ 3.6 V 。
• When the main power is off, RTC module can continue to operate under VBAT power. 
• When the main power is off, VBAT Power is 80 Byte backup register power supply. 
• VDD Typical Operating Current 
• Run Run mode: 18.04mA@168MHz ； 2.63mA@16MHz 
• Sleep Sleep mode: 12.04mA@168MHz ； 2.08mA@16MHz 
• Stop Stop mode: 
• Stop_MR：1.03mA
• STOP LP-FPD ：9.34mA
• Memory 
• Flash Memory includes up to 1 Mbyte main area Flash ， 30 Kbyte information block. 
• When CPU main frequency is not higher than 24 MHz , supports 0  waiting bus cycle. 
• Flash It has code security protection function, and can set read protection and write protection respectively. 
• 8 Kbyte CPU instruction Cache cache 
• 1 Kbyte CPU data Cache cache 
• 192 Kbyte on-chip SRAM and 64 Kbyte CCM SRAM 
• 80 Byte Backup register and 4 Kbyte backup SRAM 
• FSMC module can externally connect 1 Gbyte NOR/PSRAM/NAND/PC Card memory (among them, 256 Mbyte of space can store instructions, which can be used for on-chip Cache cache). 
• QSPI module can externally connect 256 Mbyte NOR Flash memory (instructions can be stored, which can be used for on-chip Cache cache). 
• clock 
• external HSE ： 4 ~ 32 MHz 
• external LSE ： 32.768 kHz 
• Internal HSI Clock: 64 MHz/16 MHz/8 MHz 
• Internal LSI Clock: 32 kHz
• PLL Output Clock: 168 MHz (Maximum) 
• GPIO External Input Clock: 1~42 MHz 
• Reset 
• External Pin Reset 
• Power Reset 
• Software Reset 
• Watchdog ( IWDG and WWDG ) Timer Reset 
• Low-Power Management Reset 
• Programmable Voltage Detection ( PVD ) 
• 8  Adjustable level detection voltage threshold 
• Rising and falling edge detection configurable 
• General Purpose Input/Output Port ( GPIO ) 
• 64  Pin Package MCU Provides 51  number of GPIO pins, 100  Pin Package MCU Provides 82  number of GPIO pins, 144  Pin Package MCU Provides 114  number of GPIO Pins 
• All GPIO Pins can be configured as external interrupt inputs 
• Built-in switchable pull-up/pull-down resistors 
• Supports open-drain ( Open-Drain ) output 
• Supports Schmitt ( Schmitt ) hysteresis input 
• Output drive capability selectable in four levels: ultra-high, high, medium, and low 
• Provides up to 30 mA drive current 
• Data Communication Interface 
• 4  number of USART 
• Up to 4  number of UART 
• 3  number of SPI (both support I2S protocol) 
• 3  number of I2C
• 1  number of SDIO 
• 2  number of CAN (both support 2.0A and 2.0B protocol) 
• 1  number of QSPI 
• 1  number of USB OTG HS 
• 1  Ethernet interface (only HK32F407 series support) 
• Audio/Video Data Interface 
• 1  Digital Camera Interface ( DCMI ) 
• 4  path TFT Interface 
• Timer 
• 2  Advanced timers: TIM1/TIM8
• TIM1/TIM8 With brake function and 4  path PWM output, among which 3  path with dead-time complementary output 
• 10  General-purpose timers: TIM2~5 and TIM9~14 
• 8  number of 16  Bit general-purpose timers: TIM3~4 and TIM9~14 
• 2  number of 32  Bit general-purpose timers: TIM2/TIM5
• 2  Basic timers: TIM6/TIM7
• Support CPU Interrupt, DMA request and DAC Conversion trigger 
• Infrared remote control interface: with infrared LED Used to achieve remote control function. 
• DMA Controller 
• 2  General-purpose dual-port DMA ： DMA1 and DMA2
• Each DMA has 8  data streams, each data stream has up to 8  channels 
• Support Timer 、 ADC 、 DAC 、 SPI 、I2C、 USART 、 UART and various other peripheral triggers. 
• RTC Clock counter, used with software to record year, month, day, hour, minute, and second 
• On-chip analog peripherals 
• 3  number of 12  bit 2 MSPS ADC （single ADC Supports up to 19  channels; can measure 16  external signal sources, 2  internal signal sources and VBAT channel signals). Supports three ADC modes, with a maximum sampling rate of 6 MSPS。
• 2  number of 12  bit DAC 
• 1  temperature sensors 
• 1  internal reference voltage sources 
• 1  number of VBAT Power resistor divider (the divider output is connected on-chip with ADC to achieve VBAT power voltage monitoring) 
• ID identification 
• Each chip provides a unique 96  bit ID identification 
• Debugging and tracing interface 
• SW-DP Two-wire debug port 
• JTAG Five-wire debug port 
• ARM DWT 、 FPB 、 ITM 、 TPIU Debug trace module 
• Single-wire asynchronous trace data output interface ( TRACESWO ) 
• Four-wire synchronous trace data output interface ( TRACED[3:0] ， TRACECK ) 
• Custom DBGMCU Debug controller (low-power mode simulation control, debug peripheral clock control, debug and trace interface allocation). 
• Reliability 
• Through CDM 1750V/LU 200mA/HBM 3500V Level test

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