atx电源输出能否通过正极接+12V、负极接-12V,从而对外
Feb 10, 2023 · 不能。 虽然±12V两端能量出24V的压差来,但注意,ATX的-12V,以前好像还有个-5V,是给串口提供逻辑电平的,主板本身并不需要,所以-12V的电流上限很低,答主印象通
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输入是24v的继电器线圈吸合需要多大的电流？
May 25, 2023 · 例如,一些小型继电器在24V下可能只需要30mA至50mA即可吸合,而功率继电器可能需要超过100mA。 重要的是要确保控制电路能够提供足够的电流来确保继电器稳定吸
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Oct 20, 2022 · 当然有,对于 PLC电柜 的话,-24V通常是意味着24V电源的地线,-24V实际上电压为0V。 +24V才是24V电压。 +24V -24V,实际上意思为一组电源,表示24V,和0V。
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