随着汽车电子电器架构的革新,新的域控架构引入了高算力、高功耗的芯片.这样的新需求对车载控制器硬件电源完整性设计是一个重大的挑战,例中以电源完整性理论为指导,使用Cadence Sigrity Power SI 仿真软件对车载域控制器的电源分配网络(power delivery network,PDN)部分进行了阻抗和谐振仿真分析,通过仿真得到板上PDN结果,优化去耦电容可以有效地压低PDN阻抗,满足片上系统(system on a chip,SoC)芯片的工作需求,提高了电源部分和系统的的稳定性,提升了车载域控制器的开发效率.
Research on Power Integrity Simulation of Vehicle Domain Controller
With the innovation of automotive electronic and electrical architecture,the new domain control architecture began to introduce high-computing power and high-power chips.Such new requirements are a major challenge to the integrity design of the hardware Power supply of the on-board controller.In this example,guided by the power supply integrity theory,the impedance and resonance simulation analysis of the PDN part of the on-board domain controller is carried out using the Power SI simulation software.The results of on-board PDN are obtained through simulation.It can meet the working requirements of SoC chip,improve the stability of power supply and system,and enhance the development efficiency of vehicle domain controller.
power supply integrityvehicle domain controllerCadence Sigrity Power SIPDN
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