电解电容在快充电源线路的主要作用:
The main role of electrolytic capacitors in fast charging power lines:
1、在整流滤波电路中的作用:滤波作用、吸收浪涌电流、抑制传到干扰、降低ESR电解电容;
Functions in rectifying and filtering circuits: filtering, absorbing surge currents, suppressing interference, and reducing ESR electrolytic capacitance;
2、在高频整流滤波中的作用:滤波作用、储能作用、功率补偿、大纹波电流;
Functions in high-frequency rectifier filtering: filtering, energy storage, power compensation, large ripple current;
3、在辅助供电电路中的作用:滤波作用、旁路和去耦作用。
Functions in auxiliary power supply circuits: filtering, bypass, and decoupling.
快充电源对电解电容器的要求:
Requirements of fast charging power supply for electrolytic capacitors:
1、大容量,小尺寸
Large capacity, small size
◆ 储存足够的能量,平滑输入整流电压;
Store enough energy to smoothly input the rectified voltage;
◆ 降低直流部分的交流分量,抑制输出纹波;
Reduce the AC component of the DC part and suppress the output ripple;
◆ 应对小型化的充电器;
Respond to miniaturized chargers;
2、大纹波低ESR
Large ripple low ESR
◆ 吸收来自整流电路产生的纹波;
Absorbing the ripple generated from the rectifier circuit;
◆ 抑制EMI干扰;
Suppress EMI interference;
◆ 降低电容器温度。
Reduce the temperature of the capacitor.
3、高耐压,抗雷击
High voltage withstand, lightning resistant
◆ 承受收来自输入整流电路的电压冲击;
Withstand voltage surges from input rectifier circuits;
◆ 吸收来自电网的浪涌电流的冲击。
Absorb the impact of surge current from the power grid.
4、长寿命,高可靠性
Long life, high reliability
◆ 承受较高的工作温度;
Withstand higher operating temperatures;
◆ 满足产品设计寿命要求。
Meet product design life requirements.