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Ctp - charger thermal protection – BLUESHAPE CVS8XW User Manual

Page 11

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11

CTP: flexibility of operation and charger reliability

Due to the high charging currents developed by the CVS8XW
charger, heat control is an issue for reliability and operational
consistency, even in presence of an abundant air flow convection.

To improve the reliability of the device without compromising its
usage flexibility, BLUESHAPE has developed an innovative feature;
CTP (Charger Thermal Protection) that allows the electronics to work
out the best possible charge profiles without causing damage, even in
adverse temperature conditions.

In case of the charger internal temperature reaching a high level, the
charging current is automatically reduced to avoid possible damage
caused by internal overheating. When the charging speed is reduced,
the internal temperature starts to descend. As soon as the
temperature reaches a safe level, normal charging speed is resumed.

Through indoor usage, CTP features do not normally intervene
(unless the air convection flow path is obstructed or the internal
cooling fan is damaged).

The operation implemented by CTP is outlined in the chart below.

CTP - Charger Thermal Protection

14700

14800

14900

15000

15100

15200

15300

500

650

800

957

1107

1260

1410

1560

1710

1860

Time (min)

V

o

lt

ag

e (

m

V

)

1500

2000

2500

3000

3500

4000

4500

Current

(

m

A)

CURRENT

VOLTAGE

Before CTP activation:

charger at normal speed

After CTP activation:

charger at reduced speed