USB-резисторный электронный измеритель нагрузки постоянного тока с переключателем, регулируемый, 3 режима тока 5В1А/2А/3А, тестер емкости аккумулятора, напряжения и сопротивления разряду

A designed according to the principle of ohm's law and through the resistor in parallel through a different switch, can produce 3 kinds of resistance of a new USB electronic load resistance discharge, when all the switch opens, is 2.2 ohm/10W, 4.7 ohm/10W, 2 kinds of resistance in parallel at the same time, in 5V voltage almost can produce 3A discharge current. The actual current size, please according to ohm's law: I = U/RResistor in parallel calculation formula: R=1/(1/R1+1/R2+.+1/Rn)K1=4.7Ohm/10W , K2=2.2Ohm/10W

Examples of application

! Announcements!2, considering the particularity of heat resistance, the initial use of electricity after a period of time will appear a few white smoke and smell, because outside the paint contains very little moisture, high temperature electric heating, moisture evaporates form the phenomenon of white smoke, produce peculiar smell by high temperature baking paint outside phenomenon, completely disappear after using for a period of time.This phenomenon is inevitable, belongs to the normal situation, do not have to worry about load tester can damage, please be assured that use.

The load applicationCan be convenient to test mobile power charging treasure, mobile phone charger, USB power output current is such as to amount to mark, so long as connect USB above.And can do it for mobile power supply and USB power adapter aging test, aging test discharge resistance will be hot, temperature is controlled in 80 ~ 85, please pay attention to prevent hot.