0
\$\begingroup\$

Is there any reason for not finding an inverter that only converts from DC to AC maintaining the same output voltage, e.g. a 220V DC to 220V AC inverter?

\$\endgroup\$
  • 2
    \$\begingroup\$ It is rarely used \$\endgroup\$ – Findus Apr 2 at 15:42
  • \$\begingroup\$ What supply is 220 volts DC - where is it derived? \$\endgroup\$ – Andy aka Apr 2 at 15:53
2
\$\begingroup\$

Yes.

enter image description here

Figure 1. A variable frequency drive schematic. Source: VFDS.

An inverter is similar to a variable frequency drive. The AC is generated by switching the DC bus voltage using pulse-width modulation in a fashion that generates a pseudo-sinewave. To generate a specific AC voltage the DC bus must be at least as high a voltage as the peak of the AC output required. For your 220 V AC output that is \$ 220 \sqrt 2 = 311 \ \text V \$. With a 220 V battery the best you could do would be 155 V AC.

To get 220 V AC you would need a step-up transformer after your 150 V inverter.

| improve this answer | |
\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.