Assignee
LAMBDA ELECTRONICS INC
US·19 granted patents·530 citations·filing 1989–2002
Top patents by PatentIndex Score
19 records- 0197US5291382APulse width modulated DC/DC converter with reduced ripple current coponent stress and zero voltage switching capabilityLAMBDA ELECTRONICS INC·Filed 1992·Granted Mar 1, 1994·197 cites·11 claims
- 0281US6442047B1Power conversion apparatus and methods with reduced current and voltage switchingLAMBDA ELECTRONICS INC·Filed 2000·Granted Aug 27, 2002·35 cites·74 claims
- 0378US5339217AComposite printed circuit board and manufacturing method thereofLAMBDA ELECTRONICS INC·Filed 1993·Granted Aug 16, 1994·54 cites·18 claims
- 0471US5021937AMaximum duty cycle limiting of pulse width modulatorsLAMBDA ELECTRONICS INC·Filed 1989·Granted Jun 4, 1991·31 cites·6 claims
- 0570US5465201AOverload protection of switch mode convertersLAMBDA ELECTRONICS INC·Filed 1994·Granted Nov 7, 1995·38 cites·29 claims
- 0663US5430405AControl circuit for converters operating in the discontinuous modeLAMBDA ELECTRONICS INC·Filed 1992·Granted Jul 4, 1995·29 cites·27 claims
- 0762US6744647B2Parallel connected converters apparatus and methods using switching cycle with energy holding stateLAMBDA ELECTRONICS INC·Filed 2002·Granted Jun 1, 2004·16 cites·35 claims
- 0857US5438505AAdaptive control method for power convertersLAMBDA ELECTRONICS INC·Filed 1993·Granted Aug 1, 1995·22 cites·15 claims
- 0951US5289166AVoltage detectorLAMBDA ELECTRONICS INC·Filed 1991·Granted Feb 22, 1994·14 cites·11 claims
- 1050US5394025AStabilization of MOS-FET type voltage to current convertersLAMBDA ELECTRONICS INC·Filed 1993·Granted Feb 28, 1995·22 cites·14 claims
- 1149US6703817B2Pulse width modulated power conversion apparatus and methods using capacitor-charge feedbackLAMBDA ELECTRONICS INC·Filed 2002·Granted Mar 9, 2004·8 cites·31 claims
- 1247US6005779ARectification and inversion circuitsLAMBDA ELECTRONICS INC·Filed 1999·Granted Dec 21, 1999·14 cites·22 claims
- 1346US5894216ASolid-state saturable reactor emulatorLAMBDA ELECTRONICS INC·Filed 1998·Granted Apr 13, 1999·9 cites·21 claims
- 1443US5920461ASurface mount power supply deviceLAMBDA ELECTRONICS INC·Filed 1997·Granted Jul 6, 1999·10 cites·10 claims
- 1541US4985821AIndirect current sensing of DC to DC convertersLAMBDA ELECTRONICS INC·Filed 1990·Granted Jan 15, 1991·13 cites·8 claims
- 1632US6008997ASeries resonant converter with inherent short circuit protectionLAMBDA ELECTRONICS INC·Filed 1999·Granted Dec 28, 1999·4 cites·32 claims
- 1732US5014182AHigh frequency self-oscillating inverter with negligible switching lossesLAMBDA ELECTRONICS INC·Filed 1989·Granted May 7, 1991·5 cites·6 claims
- 1826US6289580B1Surface mount power supply deviceLAMBDA ELECTRONICS INC·Filed 1999·Granted Sep 18, 2001·0 cites·10 claims
- 1925US6201706B1Power supply device with externally disconnectable “Y” capacitorsLAMBDA ELECTRONICS INC·Filed 1998·Granted Mar 13, 2001·9 cites·17 claims
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