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LSQ1GV24PSA0适配器动态温控联锁与SPI双向滚动加密逆向工程深度疑难

2025-05-02提问
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2 个回答
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①通过COMSOL Multiphysics优化热管理系统(重点解决MOS管与高频变压器热耦合效应);
②使用Intronix LogicPort解析SPI时序(需捕获0x55指令后的128位动态密钥生成过程);
③应急方案采用冗余电源架构(如Murata OKI-78SR+缓冲电路),需并联TVS管(SMBJ36A)与RC吸收网络(10Ω+100nF)。

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1. ‌动态散热算法逆向‌:原厂采用FPGA实现温度-频率动态映射(温度每升5℃触发开关频率降阶12kHz),需在第三方电源MCU植入等效控制算法;
2. ‌SPI双向认证破解‌:适配器需在55ms内响应0x55指令并返回基于AES-128算法生成的动态密钥,可通过STM32H7系列模拟协议握手(关键时序窗口位于0x5A-0x7F地址段);

3. ‌高频噪声抑制方案‌:输出端需配置三级滤波网络(220μF电解电容+7Ω/3W阻尼电阻+220nF X7R陶瓷电容)配合铁氧体磁珠阵列(250kHz频点插入损耗>25dB)。 

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