Lambda Electronics, Inc.
Patent Owner
Stats
- 5 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 08, 2005 most recent publication
Details
- 5 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 373 Total Citation Count
- Apr 19, 1989 Earliest Filing
- 20 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6744647 Parallel connected converters apparatus and methods using switching cycle with energy holding stateApr 12, 02Jun 01, 04[H02H]
6703817 Pulse width modulated power conversion apparatus and methods using capacitor-charge feedbackMar 07, 02Mar 09, 04[H02M, G05F]
6606259 Clamped-inductance power converter apparatus with transient current limiting capability and operating methods thereforAug 23, 01Aug 12, 03[H02H]
5291382 Pulse width modulated DC/DC converter with reduced ripple current coponent stress and zero voltage switching capabilityJan 06, 92Mar 01, 94[H02M]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2005/0270,007 Simplified adaptive control method for power convertersAbandonedMay 04, 04Dec 08, 05[G05F]
2005/0243,583 Method and circuit for sensing the output current of power sourcesAbandonedMay 03, 04Nov 03, 05[H02J]
2002/0175,719 Transistor drive circuits and methods using selective discharge of terminal capacitanceAbandonedAug 29, 01Nov 28, 02[H03K, H03B]
6442047 Power conversion apparatus and methods with reduced current and voltage switchingExpiredAug 25, 00Aug 27, 02[H02M]
6225862 Series resonant circuit with inherent short circuit protectionExpiredApr 28, 99May 01, 01[H03K]
6201706 Power supply device with externally disconnectable "Y" capacitorsExpiredDec 03, 98Mar 13, 01[H05K]
6008997 Series resonant converter with inherent short circuit protectionExpiredMar 22, 99Dec 28, 99[H02J]
5430405 Control circuit for converters operating in the discontinuous modeExpiredAug 12, 92Jul 04, 95[H03K, H02M]
5394025 Stabilization of MOS-FET type voltage to current convertersExpiredMay 28, 93Feb 28, 95[H03K, G06G]
5339217 Composite printed circuit board and manufacturing method thereofExpiredApr 20, 93Aug 16, 94[H05K]
5014182 High frequency self-oscillating inverter with negligible switching lossesExpiredApr 19, 89May 07, 91[H02M]
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