| 摘要 |
In general, the present disclosure pertains to systems and methods for providing electrical power from an alternating current (AC) power source to direct current (DC) components. A power supply system in accordance with one exemplary embodiment of the present disclosure has a power supply element and a load controller, and the power supply element receives an AC signal from an AC power source. In this regard, the power supply element is directly connected to the hot wire carrying an AC signal from the AC power source. For each half cycle of the AC signal, the power supply element uses the AC signal to charge a capacitor during a small portion of the half cycle. During another portion of the same half cycle, the load controller may use the AC signal to power an AC load. During the cycle, the capacitor is discharged thereby providing DC power to various components in the system. Thus, power from the AC signal is effectively shared between the AC load and the DC components, and there is no need for the power supply circuit to be connected directly to the neutral wire.
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