What is a direct current (DC) inverter?

More than 730 people have received a free quote in the last 60 days. Enter details in under 3 minutes. In modern heating, ventilation, and air conditioning (HVAC) units, a direct current (DC) inverter is motor control technology that gives the system more control over the compressor power and speed.

How does a DC inverter work?

Compressors in a traditional HVAC unit operate at a fixed speed — if the system is on, the compressor will always be at 100%. A DC inverter controls the voltage to the compressor, and therefore its power and speed. Here’s how it does it: The inverter converts alternating current (AC) from the power supply to direct current.

Why do inverters need to convert DC to AC?

This process ensures compatibility with power sources and prevents overloading, which can lead to equipment failure or safety hazards. The need to convert DC (direct current) to AC (alternating current) led to the development of inverters.

How do you calculate inverter current?

It’s the amount of current drawn by an inverter from the DC source to deliver the desired AC power. How is inverter current calculated? By dividing power (in watts) by voltage (in volts): Current = Power ÷ Voltage.

What is a 100kW AC-DC converter cabinet?

Depending on the AC voltage. The 100kW, 690V AC-DC converter cabinet is a non-isolated high-power solution that operates at a maximum power of 100kW at 690V AC. With an operational voltage range from a minimum of 400 ph-ph V AC rms to a maximum of 690 ph-ph V AC rms, and a maximum current capacity of 80 A AC phase current on AC side.

What voltage does an inverter use?

Most residential and small commercial inverters use one of the following DC input voltages: As voltage increases, the current required for the same power decreases, making high-voltage systems more efficient for high-power applications. While calculating inverter current is straightforward, other factors may affect the actual current draw: