Assignee
LAMBDA ELECTRONICS INC
US19 patents
Top patents by PatentIndex Score
US5291382AMar 1, 1994
Pulse width modulated DC/DC converter with reduced ripple current coponent stress and zero voltage switching capability
LAMBDA ELECTRONICS INC197 citations99
US6442047B1Aug 27, 2002
Power conversion apparatus and methods with reduced current and voltage switching
LAMBDA ELECTRONICS INC35 citations93
US5465201ANov 7, 1995
Overload protection of switch mode converters
LAMBDA ELECTRONICS INC38 citations93
US5438505AAug 1, 1995
Adaptive control method for power converters
LAMBDA ELECTRONICS INC22 citations93
US5430405AJul 4, 1995
Control circuit for converters operating in the discontinuous mode
LAMBDA ELECTRONICS INC29 citations93
US5339217AAug 16, 1994
Composite printed circuit board and manufacturing method thereof
LAMBDA ELECTRONICS INC54 citations91
US5021937AJun 4, 1991
Maximum duty cycle limiting of pulse width modulators
LAMBDA ELECTRONICS INC31 citations89
US6744647B2Jun 1, 2004
Parallel connected converters apparatus and methods using switching cycle with energy holding state
LAMBDA ELECTRONICS INC16 citations84
US5394025AFeb 28, 1995
Stabilization of MOS-FET type voltage to current converters
LAMBDA ELECTRONICS INC22 citations80
US6703817B2Mar 9, 2004
Pulse width modulated power conversion apparatus and methods using capacitor-charge feedback
LAMBDA ELECTRONICS INC8 citations74
US6005779ADec 21, 1999
Rectification and inversion circuits
LAMBDA ELECTRONICS INC14 citations74
US5894216AApr 13, 1999
Solid-state saturable reactor emulator
LAMBDA ELECTRONICS INC9 citations74
US5289166AFeb 22, 1994
Voltage detector
LAMBDA ELECTRONICS INC14 citations74
US4985821AJan 15, 1991
Indirect current sensing of DC to DC converters
LAMBDA ELECTRONICS INC13 citations70
US6008997ADec 28, 1999
Series resonant converter with inherent short circuit protection
LAMBDA ELECTRONICS INC4 citations63
US5920461AJul 6, 1999
Surface mount power supply device
LAMBDA ELECTRONICS INC10 citations63
US5014182AMay 7, 1991
High frequency self-oscillating inverter with negligible switching losses
LAMBDA ELECTRONICS INC5 citations59
US6201706B1Mar 13, 2001
Power supply device with externally disconnectable “Y” capacitors
LAMBDA ELECTRONICS INC9 citations58
US6289580B1Sep 18, 2001
Surface mount power supply device
LAMBDA ELECTRONICS INC0 citations42