2021-11-05 10:34:31
Test method: In the portable power banks battery input 3.4 power supply, observe the prompt of the portable power banks LED and the portable power banks supply to the low power shutdown output;
function test:
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According to the requirements of the design input, it is not the same as the key to the design input, and the power requirements are different. Please formulate it yourself;
Output ripple voltage standard: less than 200MV test method: Select the AC test file with an oscilloscope to see if the ripple voltage is in line; Touch screen can not fail
Stand-up current: Standard: Standhable current is generally micro-level: HR61: Designing less than 300UA test method: connected to a current table in the battery, enter the battery terminal of the portable power banks; observe the portable power banks supply, when the power is not worked, 1 When you enter the sleep state within minutes, it will be less than 300ua;
Contents that must be tested in production:
1, battery display:
needs to have a reference voltage input to the mobile power supply to see if the corresponding LED is on;
2, all LEDs can be bright
3, charging current: see if there is charging current and charging Indication;
4, load voltage: to see whether the load voltage meets
5, light-load protection: 2 values need to be tested:
A: whether it will shut down if the current is less than the light-load
B: will shut down if the current is greater than the light-load