Wellsee three
-stage solar controller is
totally different from other
controllers with
three stage charging mode:it charges by battery charging
characteristic curve and adopts to intelligent three steps
charging mode “constant current- constant voltage and limited
current-Purling floating”,It make the battery full of power and
it has advanced human-machine interactive function that user
can adjust charging voltage.
Three-stage charging mode (take
*2V system as an example.)
1.Constant current fully charge stage: directly charging
battery by using constant current output characteristic until
the voltage of battery is up to *3.7V(can be set)
2. Constant voltage charge stage: controlled by PWM, the
battery voltage is kept at *3.7V, till charge current is less
than Purling current floating charge voltage;
3. Purling current floating charge stage: continue to control
by PWM and keep the charge current keep in floating status
until battery voltage is up to *4.2V, charging is over.
If the started voltage of battery is higher than the lowest
protection voltage, the system will go to the Purling current
floating charge stage automatically to prevent frequent
overcharging; if started charge voltage is lower than the
lowest protection voltage, the system will go to three-stage
charge mode.
Three-stage charge mode uses
constant current charging at the beginning and the end, and
uses constant voltage charging in the intermediate stage. When
the current is decayed to the set value, it switches from the
second stage to the third stage. This mode can make the outlet
minimum to protect the battery better and really charge the
battery fully.
WS*-SC***0 Wellsee three-Stage
charge controller applies
to all types of solar panel and lead-acid batteries(other types
of batteries can be set charging curve according to customer’s
requirement), MCU (Micro processing controller) has PWM (Pulse
Width Modulation) program. It can provide fast and best
charging voltage and current from the PV panel according to
different types of batteries and power supply of panels
.
Functions:
Intelligent three stage charging mode: constant current charge→
constant voltage and limited current charge→ purling current
floating charge .
1.CPU control, LCD display
2.Automatic recognition of voltage • Applicable to
various types of durable batteries
3.Micro processing controller Pulse Modulation Wide-frequency
(PWM) charge
4.low voltage cut-off can be set /resuming connection of the DC
output of the load port
5.Temperature sensor for charging a battery in
compensation
6.Protective circuit of PV from reverse-charging.
7.Overload protection
8.Overcharge protection
9.Short circuit protection
*0.reverse discharge protection
*1.Reverse polarity connection protection
*2.Thunder protection
*3.Low voltage protection
*4.LCD display parameters in turn
Technical Index:
