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US 2005/0237771 A1Published application
Circuit for converting an AC voltage to a DC voltage
AssigneePatent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh
InventorsFelix Franck, Peter Niedermeier
Life of this patent
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Abstract
Circuit for converting an AC voltage to a DC voltage in which a full-bridge rectifier is replaced by two controlled switches. An inductor is connected upstream such that power factor correction is also made possible for the rectifying function. The circuit has a mid-voltage at the output. As a result, a square-wave load current can be generated with the aid of two further switches.
Claims10
A circuit for converting an AC voltage to a DC voltage having the following features:
- a first (J1) and a second (J2) input terminal to which a source can be connected which can emit an AC input voltage (UN) and an alternating input current (IN), and
- a first (J3) and a second (J4) output terminal to which a load can be connected,
- characterized by the following features:
- a first (S1) and a second (S2) controlled switch which are connected in series between the output terminals (J3, J4) and form a switch connecting node (N1),
- a first (C1) and a second (C2) storage capacitor which are connected in series between the output terminals (J3, J4) and form a capacitor connecting node (N2),
- the first input terminal (J1) is connected to the switch connecting node (N1) via an inductor (L1), and
- the second input terminal (J2) is connected to the capacitor connecting node (N2).
4 more elements
Dependencies are inferred from the claim text.