Patent ID: 7944188

Claim:
A bipolar output boost converter comprising, an input series network having a first terminal and a second terminal comprising, a source of ac power, an input series inductance, a positive output terminal, a negative output terminal, a neutral output terminal directly connected to said first terminal of said input series network, first switch means having a first main terminal connected to said second terminal of said input series network and a second main terminal connected to said positive output terminal, second switch means having a first main terminal connected to said negative output terminal and a second main terminal connected to said second terminal of said input series network, third switch means having a first main terminal connected to said first terminal of said input series network and a second main terminal connected to said second terminal of said input series network, a first capacitor having a first terminal connected to said positive output terminal and a second terminal connected to said neutral output terminal, a second capacitor having a first terminal connected to said neutral output terminal and a second terminal connected to said negative output terminal.