CONVERTER FOR SINGLE-PHASE AND THREE-PHASE OPERATION, D.C. VOLTAGE SUPPLY AND BATTERY CHARGER
2 Assignments
0 Petitions
Accused Products
Abstract
A Converter (1a.1c) for single-phase and three-phase Operation which comprises a three-phase rectifier to which three coils (La, Lb, Lc) are connected on the mains side is described. A first coil (La) is provided on the mains side with a switch (S) which connects the first coil (La) to the mains during three-phase Operation and connects it via a capacitor (C) either to the lower end (FP) of the rectifier or on the mains side to another coil (Lb, Lc) during single-phase Operation. In addition, a d.c. voltage supply and a battery charger (5a.5c) which comprise the Converter (1a.1c) according to the invention are described.
-
Citations
31 Claims
-
1-11. -11. (canceled)
-
12. A converter system for single-phase and three-phase operation comprising:
-
a converter; a first mains branch for said converter; said first mains branch connected at a point between a first set of two rectifying diodes in series; a first choke coil in said first mains branch, said first choke coil located before said connection point to between said first set of two rectifying diodes; a second mains branch for said converter; said second mains branch connected at a second point between a second set of two rectifying diodes in series; a second choke coil in said second mains branch, said second choke coil located before said connection second point to between said second set of two rectifying diodes; a third mains branch for said converter; a switch; a third choke coil connected to said switch and to a third connection point between a third set of two rectifying diodes; said switch having a first position that connects said third choke coil to said third mains branch for three-phase current conversion; and
,said switch having for single-phase current conversion a second position that connects said third choke coil to a capacitor, said capacitor also connected to a low end of said converter system. - View Dependent Claims (13, 14)
-
-
15. A converter system for single-phase and three-phase operation comprising:
-
a converter; a first mains branch for said converter; said first mains branch connected at a point between a first set of two rectifying diodes in series; a first choke coil in said first mains branch, said first choke coil located before said connection point to between said first set of two rectifying diodes; a second mains branch for said converter; said second mains branch connected at a second point between a second set of two rectifying diodes in series; a second choke coil in said second mains branch, said second choke coil located before said connection second point to between said second set of two rectifying diodes; a third mains branch for said converter; a switch; a third choke coil connected to said switch and to a third connection point between a third set of two rectifying diodes; said switch having a first position that connects said third choke coil to said third mains branch for three-phase current conversion; and
,said switch having for single-phase current conversion a second position that connects said third choke coil to a capacitor, said capacitor also connected to said second mains branch. - View Dependent Claims (16, 17)
-
-
18. A converter system for single-phase and three-phase operation comprising:
-
a converter; a first mains branch for said converter; said first mains branch connected at a point between a first set of two rectifying diodes in series; a first choke coil in said first mains branch, said first choke coil located before said connection point to between said first set of two rectifying diodes; a second mains branch for said converter; said second mains branch connected at a second point between a second set of two rectifying diodes in series; a second choke coil in said second mains branch, said second choke coil located before said connection second point to between said second set of two rectifying diodes; a third mains branch for said converter; two part-coils for said third mains branch; a switch for said two part-coils of said third mains branch, said switch having a first position connecting said part-coils in parallel sense to said third mains branch for three-phase conversion operation, said first position also connecting said part-coils in parallel to a third point between a third set of two rectifying diodes in series; and
,said switch having for single-phase operation a second position disconnecting said two part-coils from said third mains branch and connecting said two part-coils in series between said third point located between said third set of diodes and a capacitor connected to a low end of said converter. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
Specification