Login or register (free and only takes a few minutes) to participate in this question.
You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.
All answers were very useful, but I decided to award the points to Ken, as he offered the most useful reference. Many thanks to everyone for their suggestions - Pikey 4 KudoZ points were awarded for this answer
Explanation: "inverter" is correct, but perhaps not specific enough, unless the context makes it clear.
"richter" = rectifier, a device that transforms ac current into dc.
An inverted rectifier does the opposite.