Name
Title | ||
|---|---|---|
A step-up μ-power converter for solar energy harvesting applications, using Hill Climbing maximum power point tracking |
Abstract | ||
|---|---|---|
This paper presents a step-up micro-power converter for solar energy harvesting applications. The circuit uses a SC voltage tripler architecture, controlled by an MPPT circuit based on the Hill Climbing algorithm. This circuit was designed in a 0.13 μm CMOS technology in order to work with an a-Si PV cell. The circuit has a local power supply voltage, created using a scaled down SC voltage tripler, controlled by the same MPPT circuit, to make the circuit robust to load and illumination variations. The SC circuits use a combination of PMOS and NMOS transistors to reduce the occupied area. A charge re-use scheme is used to compensate the large parasitic capacitors associated to the MOS transistors. The simulation results show that the circuit can deliver a power of 1266 μW to the load using 1712 μW of power from the PV cell, corresponding to an efficiency as high as 73.91%. The simulations also show that the circuit is capable of starting up with only 19% of the maximum illumination level. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/ISCAS.2011.5937965 | ISCAS |
Keywords | Field | DocType |
cmos integrated circuits,power 1712 muw,pmos transistors,hill climbing maximum power point tracking,sc voltage tripler architecture,power 1266 muw,mppt circuit,cmos technology,solar energy harvesting applications,energy harvesting,solar cells,maximum power point trackers,step-up μ-power converter,mosfet,nmos transistors,size 0.13 mum,pv cell,maximum power point tracking,integrated circuit,solar energy,lighting,hill climbing | Capacitor,NMOS logic,Computer science,Voltage,Maximum power point tracking,CMOS,Electronic engineering,Electronic circuit,PMOS logic,Electrical engineering,Constant power circuit | Conference |
ISSN | ISBN | Citations |
0271-4302 E-ISBN : 978-1-4244-9472-9 | 978-1-4244-9472-9 | 1 |
PageRank | References | Authors |
0.39 | 1 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Carlos Carvalho | 1 | 1 | 0.39 |
| Guilherme Lavareda | 2 | 1 | 0.73 |
| Jose Lameiro | 3 | 1 | 0.39 |
| Nuno Paulino | 4 | 28 | 6.24 |