Design of 8.4V/1A Intelligent Lithium Battery Charger for Micro-Printer

Smart lithium battery charger for micro printers - a lithium battery smart charger with master-slave battery identification and priority charging function designed to meet the needs of portable micro printers in the IT industry. It solves the current situation that when a single battery or multiple batteries are in place at the same time, the charger can only charge a single battery or charge them simultaneously. It greatly improves the charging efficiency of the charger under the same volume and power. It improves the utilization efficiency of spare batteries for portable products. This technical specification belongs to the field of smart lithium battery charging identification technology.

1. Design requirements for 8.4V/1A micro printer intelligent lithium battery charger

1) The charger has a charging identification function, which indicates the charging of the master and slave batteries through two indicator lights.

2) In any charging state, the charger will first charge the printer host battery, and then charge the slave battery after it is fully charged: When the slave battery is charging, as long as the host battery is in place, the charger will automatically identify it and switch to charging the host battery, and then continue to charge the slave battery after it is fully charged.

3) During the entire charging process, there are two indicator lights to indicate the charging mode: (host charging indicator light, slave charging indicator light). The red light is on during the charging process, the green light is on when fully charged, and the light is off when the battery is not in place.

4) 8.4V/1A micro printer intelligent lithium battery charger schematic diagram