Performance test and review of 5V to 12V 6W boost converter

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Official specifications:
I found this module on ebay at fzcstore


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All test was done with these wires, they were plugged into the power supply and the load.


12 volt output


Load sweep with different input voltages

My power supply has a 2.5A current limit for these tests and the test will terminate shortly after that is reached.
When the converter overheats it will shut down for a couple of second to cool down.

Load%20sweep%201.5V

The converter may work at 1.5 volt, but you only get 50mA from it.

Load%20sweep%202V

Load%20sweep%202.5V

Load%20sweep%203.0V

Load%20sweep%203.5V

Load%20sweep%204.0V

Load%20sweep%204.5V

Load%20sweep%205V

Load%20sweep%206V


Input voltage sweep with constant current load

Again the output drops when the 2.5A current limit (From my power supply) is reached.

No%20load%20voltage%20sweep

Voltage%20sweep%200.1A%20input%20current

Voltage%20sweep%200.1A

Voltage%20sweep%200.2A%20input%20current

Voltage%20sweep%200.2A

Voltage%20sweep%200.3A%20input%20current

Voltage%20sweep%200.3A

Voltage%20sweep%200.4A%20input%20current

Voltage%20sweep%200.4A

Voltage%20sweep%200.5A%20input%20current

Voltage%20sweep%200.5A

Voltage%20sweep%200.6A%20input%20current

Voltage%20sweep%200.7A

Voltage%20sweep%200.7A%20input%20current

Voltage%20sweep%200.7A





Load test

This test is done with 4 volt input.

Load%20test%200.5A

Temp2387

M1: 54,6C, M2: 55,7C, M3: 49,7C, M4: 44,8C, HS1: 56,5C
There is nothing that looks really hot.

Temp2388

M1: 41,8C, M2: 40,2C, HS1: 53,3C



Output test

4V-12V-0.1A

First test is with 100mA load and 4 volt input.

4V-12V-0.5A

Second test is with 500mA load and 4 volt input.

4V-12V-0.1Aon

Turn 100mA load on

4V-12V-0.1Aoff

Turn 100mA load off

4V-12V-0.5Aon

Turn 500mA load on

4V-12V-0.5Aoff

Turn 100mA load off

4V-12V-20ohmPoweron

Power on with 20ohm load and 4 volt input.

4V-12V-20ohmPoweroff

Power off with 20ohm load and 4 volt input.



Conclusion

Most of the low voltage limitations are due to the 2.5A current limit on my power supply, but with the switcher rated for 1.5A input current I dared no go higher.
Generally it is very important to look at minimum input voltage, to verify that it can deliver the required output current.



Notes

The yellow lines are placed +/-5% from nominal voltage.

All the curves are made with a programmable power supply and an electronic load.