1500 Watt UPS Power Inverter, 12VDC to 220VAC

Q1: What is the difference between rated power and peak power of 1500W UPS power inverter?

Rated power refers to the power that the inverter can continuously output under steady state operation, while peak output power refers to the maximum power that can be output at startup or for a short period of time. Typically, the starting load of an appliance or power tool determines the capability of a power inverter.

Q2: Why does the efficiency of this power inverter change with the input voltage?

This 1500W UPS power inverter has several input voltage options to choose from, the 12V version of the inverter has a conversion efficiency of 90% while the 48V version has a conversion efficiency of 95%. At low input voltages, the inverter may require more voltage regulation to stabilize the output voltage, which can increase switching losses and other forms of power loss, thus reducing efficiency. At high input voltages, these losses may be reduced because the circuit can be designed more simply and components can operate closer to their optimum efficiency.

When purchasing an inverter, you should consider your application requirements and expected input voltage to ensure that you select the best inverter for your application scenario.