摘要：Based on the special power supply requirements of the project, the AD8210YRZ (current monitoring operational amplifier) monitors the charging current in real time, and its output is fed back to the detection pin of the TPS5430DDA to adjust the charging voltage of the capacitor. Combined with the charge-discharge characteristics of the super capacitor, the circuit realizes high current constant current charging at low voltage and constant voltage charging when the capacitor terminal voltage increases. This method can effectively and reasonably improve the charging efficiency of the super capacitor and meet the design requirements. The product has been put into use and achieved good results.
