The function of voltage converter (inverter) is to convert low DC voltage into high AC voltage. Some electronic equipment must be driven by AC, but what we provide is DC power supply. At this time, it is necessary to use inverter to convert DC into AC before driving the electronic parts.
Relevant test conditions of voltage converter:
Initial test at normal temperature: 25 ℃, ≥ 2 hours
Low temperature initial test: 0 ℃ or -5 ℃, ≥ 2 hours
High temperature initial test: 60 ℃, ≥ 2 hours
High temperature and humidity test: 40 ℃ /95%rh, 240 hours
High temperature storage test: 70 ℃, ≥ 96 hours or 240 hours
Low temperature storage test -1:-20 ℃, ≥ 96 hours
Low temperature storage test -2:-40 ℃, 240 hours
High temperature and humidity storage test: 40 ℃ /90%rh, ≥ 96 hours
Temperature cycle test: -20 ℃ ~ 70 ℃, 5 cycles, room temperature ↓ -20 ℃ (4 hours) ↓ room temperature (90%rh.4 hours) ↓ 70 ℃ (4 hours) ↓ room temperature (4 hours)
High temperature load test: equivalent load at 55 ℃, 1000 hours
Life test: 40 ℃, MTBF ≥ 40000 hours
Note: the tested module should be placed under normal conditions (15 ~ 35 ℃, 45 ~ 65% RH) for one hour before testing
