Assembly set including a static converter with controlled switch and control circuit
OwnerAndre Bonnetinventor
Life of this patent
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Abstract
A power supply assembly is disclosed which includes a resonant static converter of the Zero Voltage Switching type having a mono-switch at the primary and a rectifier circuit at the secondary; it further includes an auxiliary voltage booster rectifier circuit and a starting circuit for a load such as a gas discharge lamp.
Claims22
A power supply assembly including a resonant static converter of the Zero Voltage Switching type, comprising a transformer a primary circuit of which includes a controlled mono-switch and a secondary circuit of which comprises a rectifier circuit, said rectifier circuit including a secondary winding of said transformer connected in series with an output capacitor and a rectifier diode, said assembly further comprising a first auxiliary diode and a first auxiliary capacitor series connected in parallel with said secondary winding, a voltage doubler rectifier circuit including second, third and fourth auxiliary diodes connected in series between a common connection point of said first auxiliary diode and said first auxiliary capacitor, and a common connection point of said rectifier diode and said output capacitor, and further comprising second and third auxiliary capacitors connected, respectively, in parallel with the series connection of said first and second auxiliary diodes and in parallel with the series connection of said second and third auxiliary diodes.
A power supply assembly including a resonant static converter of the Zero Voltage Switching type, comprising a transformer, a primary circuit of which includes a controlled mono-switch and a secondary circuit of which comprises a rectifier circuit, said rectifier circuit including a secondary winding of said transformer connected in series with a first output capacitor and a rectifier diode, said assembly further comprising a second output capacitor connected in series with said first output capacitor, and further connected in series with a first auxiliary capacitor and a first auxiliary diode, the series connection of said second output capacitor with said first auxiliary diode and said first auxiliary capacitor being mounted in parallel with said rectifier diode, a second auxiliary diode being connected between a common connection point of said rectifier diode and said first output capacitor and the common connection point of said first auxiliary capacitor and said first auxiliary diode, said first and second auxiliary diodes having their conduction paths directed in the same direction as said rectifier diode.
A power supply assembly including a resonant static converter of the Zero Voltage Switching type, comprising at least one transformer with at least one primary and at least one secondary winding, at least one controlled switch being connected in series with said primary winding and an input voltage source, at least one rectifier circuit being connected to said secondary winding, said assembly including an output filter comprising at least one capacitor and further including at least one auxiliary circuit consisting of a voltage booster rectifier circuit or a load circuit, said transformer windings being arranged on a magnetic core having at least three legs, namely two lateral legs and one middle leg, an air-gap being provided in said middle leg, said primary winding comprising two identical coils, each arranged around one of said lateral legs and connected in series in such a way that a current flowing in said coils produces additive magnetic fluxes in said middle leg including said air-gap, said secondary winding comprising two coils, each arranged on a respective one of said lateral legs in such a way that a current of a given direction flowing in said primary winding produces in said coils of said secondary winding respective ampere-turns creating additive fluxes in said middle leg.
Dependencies are inferred from the claim text.