池充电电路的一套安全温度限制。单节锂离子（锂离子）电池充电器可从USB端口或外部电源供电。Maxim/Dallas > App Notes > AUTOMOTIVE Keywords: battery charger, thermal protection, Li+, lithium ion, safety, set temperature limits, thermistor, Oct 01, 2003 dual comparator, window comparator, battery charging APPLICATION NOTE 2769 Dual Comparator Thermally Protects Li+ Battery A dual comparator and thermistor set safe temperature limits for a lithium-ion battery charging circuit. The single-cell lithium-ion (Li+) battery charger can be powered from a USB port or external supply. Most manufacturers recommend that Li+ (lithium-ion) batteries not be charged below 0°C or above +50°C. You can monitor both of these limits by adding a thermistor and dual (window) comparator to a Li+ battery charger (Figure 1). Figure 1.This lithium battery charger derives its power from from a USB ……