Method and apparatus for I-V data acquisition from solar cells

Details Method and apparatus for I-V data acquisition from solar cells Method and apparatus for I-V data acquisition from solar cells

1981-03-19

1985-07-09

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

136290, 324158R, G01R 3126

Patent

active

045285039

ABSTRACT:
A method and apparatus for logging current-voltage (I-V) characteristic d of a solar cell module (10) in two modes using a portable instrument. One mode controls the load current through a circuit (36) in 256 equal intervals while voltage is measured from open circuit to at least halfway into the knee of the curve and the other mode controls the load voltage through a circuit (34) in 256 equal intervals from the lowest voltage measurement possible (short circuit) to at least halfway into the knee of the curve, under control of a microcomputer (12). All measurements are packed by discarding each measurement that is within 0.5% of the value predicted from two previous measurements, except every ninth (9th) measurement which is retained. The remaining data is further packed into a memory block of a detachable storage medium (14) by recording the data points in sequence following a header containing data common to all points, with each point having the value of the controlled parameter recorded as the number of increments from the previous point recorded followed by the measured value. The detachable storage medium is preferably a solid state device for reliability, and is transferable to a playback terminal which unpacks the data for analysis and display.

REFERENCES:
patent: 4163194 (1979-07-01), Ross

Affiliated with

Also associated with

Rating

Method and apparatus for I-V data acquisition from solar cells does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for I-V data acquisition from solar cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for I-V data acquisition from solar cells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-911521