This paper presents a built-in input matching technique capable of handling a wide variation of multi-array thermoelectric generator (TEG) impedances, from 5 $\mathrm{\Omega }$ to 2.7 K$\mathrm{\Omega }$, which is called internal-resistance-adaptive (IRA) maximum power point tracking (MPPT) technique. The IRA circuit and delay synthesis circuit in the IRA-MPPT can track the dynamic changes of the internal resistance of the energy source in real time, and transmit the optimized switching time to the switching transistor to maximize the end-to-end efficiency ($\eta$E–E). The circuit is designed and simulated using $0.18\mathrm{\mu }$m technology. An improvement of 23.23%@(R${}_S=$ 2.7 K$\mathrm{\Omega }$, V${}_S=$ 0.6 V) in $\eta$E–E is achieved with the proposed technique. Furthermore, the simulation results show that a higher than 46%@(R${}_S=5\mathrm{\Omega }$, V${}_S=$ 0.03 V) efficiency can be achieved over an input resistance (R${}_S$) range of 5 $\mathrm{\Omega }$–2.7 K$\mathrm{\Omega }$ and an power range of 12 $\mathrm{\mu }$W–50 mW with a 95.52%@(R${}_S=$ 100 $\mathrm{\Omega }$, V${}_S=$ 1 V) peak efficiency.

本文提出了一种内置输入匹配技术，该技术能够处理多阵列热电发生器（TEG）阻抗的广泛变化，从5 $\mathrm{\Omega }$ 至2.7 K$\mathrm{\Omega }$，称为内部电阻自适应（IRA）最大功率点跟踪（MPPT）技术。IRA-MPPT中的IRA电路和延迟合成电路可以实时跟踪能源内部电阻的动态变化，并将优化的开关时间传输到开关晶体管，以最大化端到端效率（$\eta$E–E）。电路设计与仿真采用$0。\mathrm{18岁}\mathrm{\mu }$米技术。改善23.23％@（R${}_{\mathrm{小号}}=$ 2.7千$\mathrm{\Omega }$，V${}_{\mathrm{小号}}=$ 0.6 V）在 $\eta$通过提出的技术可以实现EE。此外，仿真结果表明，高于46％@（R${}_{\mathrm{小号}}=5\mathrm{\Omega }$，V${}_{\mathrm{小号}}=$ 在输入电阻（R）上可实现0.03 V）效率${}_{\mathrm{小号}}$）5的范围 $\mathrm{\Omega }$–2.7千$\mathrm{\Omega }$ 功率范围为12 $\mathrm{\mu }$W–50 mW，95.52％@（R${}_{\mathrm{小号}}=$ 100 $\mathrm{\Omega }$，V${}_{\mathrm{小号}}=$ 1 V）峰值效率。