Logo

회원가입로그인 ENGLISH naver youtube  
search 

IP명 Dual Input Boost Converter for Efficient Energy Harvesting both Electromagnetic and Thermal Energy
Category Analog Application Bio medical
실설계면적 3.4㎛ X 3.4㎛ 공급 전압 3.3V
IP유형 Hard IP 동작속도 900MHz
검증단계 Silicon 참여공정 MS180-1904
IP개요 This paper discusses a multi-energy harvesting interface IC by considering two energy sources with very different internal source resistances. An electromagnetic vibration energy generator (EVG) and a thermoelectric energy generator (TEG) are the selected energy sources. Those have chosen internal resistance values of 1.5 kΩ and 50 Ω, respectively; therefore, it is usually quite hard to combine them for energy harvesting. Initially, the internal circuits can be powered by using EVG. Then, the two energy sources, EVG and TEG, are switched alternatively for transferring the source power to the output. Especially, there are two kinds of maximum power point tracking (MPPT) algorithms in order to obtain the maximum energies as well as select the right times for enabling both sources. Furthermore, the first and second MPPT algorithms have been realized by using pulse frequency modulation (PFM) and pulse width modulation (PWM). The multi-harvester has been fabricated in a 0.18 μm process and it achieves the maximum end-to-end efficiency of 82 %.
- 레이아웃 사진 -