MPPT(Maximum Power Point Tracking) Solar Charge Controller
User’s manual
JUTA MPPT-20
（
30
）
Model
Feature:
The most important feature of this
controller is intelligent tracking input voltage
from solar panel, which could let solar panel
always working at Maximum Power Point of
V-A curve. Compared with normal solar
charge controller, this MPPT controller could
increase 10%-30%electrical power using
efficiency from
solar pane
l.
Picture 1
Function:
This MPPT controller is not only have above mentioned special function, at the
same time including completely Protecting and Controlling functions:
Overcharge protection
Overdischarge protection
Battery Reverse Current Protection
Overloading Protection
Short Circuit Protection
Reverse Polarity Connection Protection
Schematic Diagram:
Picture 2 shows typical 12V battery solar charge system V-A curve.
Normal Solar Charge Controller:
Solar Panel works at point A state, the solar panel
working voltage is a little higher than battery voltage.
Charge Voltage: U
A
=13.2V
Charge Current:: I
A
=9.8A
Charge Power: P
A
=13.2*9.8=129.36w
Area in drawing:
①＋③
MPPT Solar Charge Controller:
Solar Panel works at
point B state, the solar panel working voltage much
higher than battery voltage.
Charge Voltage: U
B
=18.4V,
Charge Current:: I
B
=9.3A
Charge Power: P
B
=18.4*9.3=171.12w
Area in drawing:
①＋②
Picture 2
Comparison:
The power B is more than power A..