Patent ID: 6212083
Filing Date: 2001-04-03
Classification: H02M

Abstract:
A single phase rectification apparatus which connects a full wave rectification circuitry (3) to a single phase A.C. power source (1) through a reactor (2), connects a pair of smoothing capacitors between the output terminals of the full wave rectification circuitry (3), the smoothing capacitors being connected in series to one another, connects a pair of diodes (4) connected in series to one another in parallel to series connection circuitry (5) of the pair of smoothing capacitors, connects the central point of the pair of the diodes (4) and the center point of the pair of smoothing capacitors (5) through an A.C. switch (7) which operates to shut off both central points when load is light, and connects an A.C. capacitor (6) between the one input terminal of the full wave rectification circuitry (3) and the center point of the pair of the smoothing capacitors (5).