Switched power converter with hold-up time and harmonics reduction
AssigneeAlcatel
InventorsAntonio Fontan Tarodo, Enrique De La Cruz Moreno, Salvador Ollero Velasco
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Abstract
Switched power converter with hold-up time and harmonics reduction connected to an AC power mains through a first rectifier means (13) and connected to conversion means (19) supplying a regulated voltage. An energy storage means (16) connected in parallel with the rectifier means (13), absorbs or supplies current to the conversion means (19), by adapting the conducting periods of two switching devices in such a way that determines the voltage level on the storage means (16) and assures a sinusoidal current at input terminals (11, 12). The two switching devices are switched in a complementary manner by means of a first control means included in the energy storage means (16).
Claims20
A switched power converter with hold-up time and harmonics reduction, comprising a first rectifier means, the input terminals of which are connected to an alternating current power mains producing at an output of said first rectifier means a rectified sine wave voltage that is applied to a converter means via a plurality of conductors that produces at least one regulated voltage across output terminals of said converter means;
- said power converter comprising a bi-directional energy storage means connected in parallel with the output of said first rectifier means for absorbing or supplying current from or to the input terminals of said converter means, so that an input current received via said input terminals is forced to follow the waveform of a voltage received via said input terminals and said converter means maintains constant the voltage level on said energy storage means.
A switched power converter, comprising:
- a first rectifier coupled to receive an input from an AC power mains;
- a bidirectional energy storage device coupled in parallel with said rectifier and to said AC power mains;
- and
- a converter circuit coupled to outputs of said first rectifier and said bidirectional energy storage device, wherein said switched power converter operates in accordance with a first switch having a first terminal coupled said and converted circuit, and a second terminal coupled to said bidirectional energy storage device and said first rectifier.
Dependencies are inferred from the claim text.