电动车充电器不变灯修理（国外英文资料）.docVIP

电动车充电器不变灯修理（国外英文资料） Fixed lamp fix for electric car charger About electric car charger for a long time constant light phenomenon. Sometimes, is sometimes caused by dry battery, is the fault caused by the same light charger itself. If it is found that this phenomenon should be timely judge who is the reason if not timely repair the battery charger bad. Today I took a 48 v battery charger. User said just also found the same charger (a night light. The fault judgment is the charger itself. Open it after the charger output filter capacitor (470 v 470 micro method) in the normal charging. The capacitance may only capacity is small, generally using a multimeter is not out to replace the capacitance change a best capacity is larger than the original point to avoid recurrence of the problem. Theres a capacitor in the charger thats burned out, but it doesnt affect the charge, but its got to be fixed. Batteries cant be charged. How do electric car chargers do that The main thing is to charge the charging current, and when it starts charging, the charging current is large and the red light is on. When charged, the charging current becomes small, and then switches off the charging circuit by switching the switch tube Many will do this after a year, because the old batteries are lower than the new ones! The charger is full of rollover voltage, so it doesnt change the green light. You can change the charger voltage or change the current sampling resistance to change the voltage of the charger In general, the transformer secondary output ends in a series of a series 0.1 in the negative electrode of the battery, which is normally 1W or 2W resistance The sample resistance is used to detect the charging current and to determine whether the battery is full The sample resistance is used to monitor the current size, which is connected to the circuit, and the more current the current, the greater the voltage across the ends. Use the voltage at both ends as a feedback signal. Determine w