Normal-temperature current reduction and high-temperature pulse charging method of battery charger

• Main Authors: CHEN JIANNAN, HONG BAIQI, CHEN MUXUN, HONG MINGHUANG, YE YOUSHENG
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention provides a charging method of a battery charger. The charging method comprises the following steps: providing a charger circuit; measuring the temperature of internal components of the charger; measuring the output voltage of the charger; measuring the output current of the charger; if the temperature is greater than or equal to a preset temperature value and lasts for a first time period, stopping charging the battery for a second time period; if the output voltage is smaller than the first voltage critical value and lasts for a third time period, the battery is charged with a first constant current value; if the output voltage is between the first voltage critical value and the second voltage critical value and lasts for a fourth time period, charging the battery with a second constant current value; if the output voltage is greater than or equal to the second voltage critical value, charging the battery in a constant voltage mode; and if the output current is smaller than the first current pr