Multi-Resonance Converter
First Claim
1. A multi-resonance converter for converting a first DC voltage into a second DC voltage, wherein the output of a half-bridge comprising semiconductor switches (S1, S2) is connected through a resonance capacitor (Cr) to the primary winding (P) of a transformer (Tr) and the secondary winding (S) of the transformer (Tr) together with rectifier elements (D1, D2), an output inductor (Lo) and an output capacitor (Co) forms a current output, characterized in that a controller (R), which can be supplied with the voltage across the output capacitor (Co) and a reference voltage, controls the semiconductor switches (S1, S2) alternately so that one of the semiconductor switches (S1, S2) is respectively turned on at a predetermined time after the other semiconductor switch (S2, S1) is turned off.
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Accused Products
Abstract
In a multi-resonance converter for converting a first DC voltage into a second DC voltage, wherein the output of a half-bridge comprising semiconductor switches is connected through a resonance capacitor to the primary winding of a transformer and the secondary winding of the transformer, together with rectifier elements, an output inductor and an output capacitor, forms a current output, it is proposed that a controller, which can be supplied which the voltage across the output capacitor and a reference voltage, should control the semiconductor switches alternately so that one of the semiconductor switches is respectively turned on at a predetermined time after the other semiconductor switch is turned off. Preferably, the frequency is controlled in an upper range of the drawn power while in a lower range of the drawn power, the mark-space ratio is controlled for selected respectively constant frequencies.
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Citations
6 Claims
- 1. A multi-resonance converter for converting a first DC voltage into a second DC voltage, wherein the output of a half-bridge comprising semiconductor switches (S1, S2) is connected through a resonance capacitor (Cr) to the primary winding (P) of a transformer (Tr) and the secondary winding (S) of the transformer (Tr) together with rectifier elements (D1, D2), an output inductor (Lo) and an output capacitor (Co) forms a current output, characterized in that a controller (R), which can be supplied with the voltage across the output capacitor (Co) and a reference voltage, controls the semiconductor switches (S1, S2) alternately so that one of the semiconductor switches (S1, S2) is respectively turned on at a predetermined time after the other semiconductor switch (S2, S1) is turned off.
Specification