You can see above is a diagram that showcases a UPS circuit diagram. This circuit diagram clearly highlight the important components and their interconnections throughout the system. Uninterruptible Power Supply (UPS) circuit typically includes components such as a battery, charging circuit, inverter, and automatic switch. This UPS circuit diagram shows the users how the UPS operates from charging the battery during regular operation to switching to battery power during a power outage, which is enabled by the automatic switch and inverter.