厦门彬硕自动化科技有限公司 钟源
如何使用户的驱动电路与SSR的输入特性相匹配
一般来讲，SSR的输入控制电压为3.2—32V。控制电流为5—30mA. 通常1—25A的SSR输入回路不是恒流源电路，输入控制电压为4—16V。控制电流为5—20mA.较大额定电流的SSR输入电路均接有恒流源电路。输入控制电压在3.2—32V均可。在三相电路里，如果用户将三个SSR的输入端串联的话，那么希望提供大于12V的控制电压；如果将三个SSR的输入端并联使用的话，那么驱动电流要保证50mA。单个SSR使用，驱动电流不要设计在4—5mA 的临界状态下至少要大于6mA。
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