在目前世界上每一個先進國家都在為了發展新能源而努力,經過一次的能源危機後,積極發展的能源有太陽能發電、風力發電、熱電…等。本文中將利用熱電發電晶片作為電力來源,利用最大功率點追蹤與升壓電路的配合來使熱電發電晶片能提升其使用範圍。 在文中將介紹熱電基本原理、最大功率轉移、單晶片控制、升壓電路原理與設計。由於升壓電路中有一個開關,其是由半導體元件來當作開關,而利用脈波寬度調變做為開關的控制,並且由8051單晶片程式控制脈波寬度調變的範圍,達到最大功率點追蹤的目地,文中使用的最大功點追蹤法為增量電導法,使得輸出能有效的維持在最大功率點上,提高熱電發電晶片的使用範圍,並能與充電電路形成一完整的系統。
Energy development is one of the most important researches in every country. In text, we use maximum power point tracking technique in thermoelectric generator(TEG). In text we will introduce the basic principles of thermoelectric material, maximum power transfer, single-chip control and DC-DC converter. DC-DC converter has a switch. The switch made by the semiconductor and use of pulse width modulation control for the switch. We use single-chip control to control duty cycle of pulse width modulation. The incremental conductance algorithm is one of the maximum power point tracking manner. In text we use incremental conductance algorithm to achieve maximum power point tracking. The maximum power point tracking to make the output voltage can effectively enhance and improve the use of thermoelectric generator.