EP1001513A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Universal switched power converter
Assignee: AEG Power Solutions BV
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Filing: 1999-11-02
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Granted: —
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Expires: 2019-11-02
Abstract
Abstract Universal switched power converter connected to a voltage source and, based on the level of the voltage received, this is applied to a first primary circuit comprising a first switching device (14-1) or to a second primary circuit comprising a second switching device (15-1). Control means (PWM) adapt the conducting period of the switching device connected to input terminals for regulating an output voltage and adapt the conducting period of the switching device not connected to the input terminals for demagnetising the core of a transformer (T) during the non-conducting period of the switching device connected to the input terminals. <IMAGE>
Inventors
- 👤 Antonio Fontan Tarodo
- 👤 Enrique De La Cruz Moreno
- 👤 Salvador Ollero Velasco
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 17:57
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/10; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33569; H02M3/33576; H02M3/33592; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/21; H02M7/217; Y; Y02; Y02B; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
Universal switched power converter, comprising input
terminals (11-1, 11-2) for receiving a first voltage from a voltage source,
applying it to a first primary circuit comprising a first switching device (14-1),
or to a second primary circuit comprising a second switching device (15-1); a
transformer (T) comprising at least a first primary winding (14), a second
primary winding (15) and a secondary winding (16); a control means (PWM)
that determines the conducting periods of said first switching device (14-1)
and of said second switching device (15-1); characterised in that said
control means (PWM) adapts the conducting period of the switching device
connected to said input terminals (11-1, 11-2) for regulating said second
voltage across output terminals (19-1, 19-2); and adapts the conducting
period of the switching device not connected to said input terminals (11-1,
11-2) for demagnetising said transformer (T) during the non-conducting
period of the switching device connected to said input terminals (11-1, 11-2).
Claim 2
Dependent Claim
50 words
Power converter according to claim 1, characterised in that
selection means (11) connect said input terminals (11-1, 11-2) to a first pair
of conductors (13-1, 13-3) or to a second pair of conductors (13-2, 13-3),
based on the level of said first voltage applied through said input terminals
(11-1, 11-2).
Claim 3
Dependent Claim
43 words
Power converter according to any of the claims 1 or 2, characterised in that said first primary circuit comprises a first storage
capacitor (14-2) connected in parallel with a series combination of said first
primary winding (14) and said first switching device (14-1).
Claim 4
Dependent Claim
46 words
Power converter according to claim 3, characterised in that said
first primary circuit is connected to said input terminals (11-1, 11-2) through
said first pair of conductors (13-1, 13-3) for functioning as a forward
converter, and said second primary circuit functions as an active locking
circuit.
Claim 5
Dependent Claim
43 words
Power converter according to any of the claims 1 or 2, characterised in that said second primary circuit comprises a second
storage capacitor (15-2) connected in parallel with a series combination of
said second primary winding (15) and said second switching device (15-1).
Claim 6
Dependent Claim
46 words
Power converter according to claim 5, characterised in that said
second primary circuit is connected to said input terminals (11-1, 11-2)
through said second pair of conductors (13-2, 13-3) for functioning as a
flyback converter, and said first primary circuit functions as an active locking
circuit.
Claim 7
Dependent Claim
64 words
Power converter according to any of the claims 1 to 7, characterised in that said secondary winding (16) is connected in parallel
with second rectifier means (17) for rectifying a current that flows through
said secondary winding (16), and produces at its output a rectified voltage to
be filtered in filtering means (18) for producing said second voltage across
said output terminals (19-1, 19-2).
Claim 8
Dependent Claim
23 words
Power converter according to claim 7, characterised in that said
second rectifier means (17) comprises means for functioning as a self-excited
synchronous rectifier.
Claim 9
Dependent Claim
33 words
Power converter according to claim 2, characterised in that it
comprises a first rectifier means (12) connected in parallel with said first pair
of conductors (13-1, 13-3) for rectifying said first applied voltage.
References Cited (Backward Citations)
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