To overcome these above mentioned problems dedicated IV-Loads are available to be used by PV-Blocks. These IV-Loads can be mounted outdoor and connect directly to a PV-Device. They can be used to measure an IV-Curve, perform Maximum Power Point Tracking (MPPT), apply a fixed voltage bias and switch a PV-Device in open-voltage(Voc) or short-circuit(Isc) conditions.
The IV-Loads are equipped with high precision analog digital converters that measure the voltage and current simultaneously.
The curve sweep can be configured by the user. The curve can be taken in any direction (Voc-to-Isc or Isc-to-Voc). It is as well possible, to sweep in two directions analyze hysteresis.