♦ Wall charger

1. Communication test: connect USB to PC and open the device manager. If it showsUSB Test and Measurement Device(IVI), then it works. Or you can use USBCharger Softwareto check.

2. The software can be connected by RS232 or USB port.

3. Enter 'list mode' and carry out steps operation and comparison. The OCP and OPP test of chargers can be done step by step.

4. If operation offline, choose write and download the programme to the quick charger controller. Then the simple test can be done automatically by operation on the front panel.

Quick Charge 2.0 and 3.0 quick charger technology

Quick Charge 2.0 is the2.0 version of quick charging technology which was developed by Qualcomm. Whenthe mobile devices such as mobile phone, tablet and chargers are compliancewith QC2.0 protocol, the charger can receive the order of these mobile devices.The output power of charger can be increased and the quick charging to batterycan be carried out.

Quick Charge 3.0 ( QC3.0 ) is the next generation technology. The key improvement of this version isto replace the manage system of ‘fixed voltage’ by ‘INOV’( IntelligentNegotiation for Optimum Voltage ). The started input voltage can be 3.6V. Theunit can be 0.2V(200Mv）. Adjust it based on real time batter temperature, transformationefficiency, capacity and so on. It can increase or decrease gradually withinthe voltage range allowed( 9V or 12V ).

When carrying out QC2.0test, IT-E255 A/M can simulate four different output voltage(5V、9V、12V、20V) and the maximum power is 18W. Whencarrying out QC3.0 test, the controller can do load test from 3.6V to 20V with0.2V step increase.