Datasheet
使用指南 Application Guidelines
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Index
放電特性 Discharge Characteristics
EDLC放電時電壓是呈斜線的。在確定應用時的容量與ESR要求時,考慮耐壓放電和電容性放電成
分是很重要的。在高脈沖電流應用時,內阻值是最為關鍵的。在低電流長時間應用時,電容放電特
性是最為關鍵的。
EDLC discharges with a sloping voltage curve. When determining the capacitance and ESR requirements
for an application, it is important to consider both the resistive and capacitive discharge components. In
high current pulse applications, the resistive component is the most critical. In low current and long duration
applications, the capacitive discharge component is the most critical.
在I電流下放電t (秒) 時電壓降低Vdrop公式為:
Vdrop = I (R+t/C)
在脈沖電池應用時,須使用低ESR (R值) EDLC以減低電壓降幅。
在低電流應用時,應使用高容量 (C值) EDLC。
The formula for the voltage drop, Vdrop, during a discharge at I current for t seconds is:
Vdrop = I (R+t/C)
To minimize voltage drop in a pulse application, use an EDLC with low ESR (R value).
To minimize voltage drop in a low current application, use an EDLC with large capacitance (C value).
充電方法 Charge Methods
EDLC可用各種方法進行充電,包括恆定電流、恆定功率、恆定電壓或與能量儲存器,如電池、燃料
電池、直流轉換器等進行并聯。如果EDLC與電池并聯,加一個低阻值串聯電阻將會提升電池的壽
命。如果使用串聯電阻,須確保EDLC電壓輸出端是直接與應用器連接而不是通過電阻與應用器連
接,否則EDLC的低ESR將無效。在高脈沖電流放電時,許多電池系統壽命均會縮短。
EDLC can be charged using various methods including constant current, constant power, constant voltage or
by paralleling to an energy source, i.e. battery, fuel cell, DC converter, etc. If an EDLC is configured in parallel
with a battery, adding a low value resistor in series will increase the life of the battery. If a series resistor is
used, ensure that the voltage outputs of the EDLC are connected directly to the application and not through
the resistor; otherwise the low ESR of the EDLC will be nullified. Many battery systems exhibit decreased life
time when exposed to high current discharge pulses.