Assignee
UNITRODE CORP
US73 patents
Top patents by PatentIndex Score
US6114835ASep 5, 2000
Multi-cell battery pack charge balancing circuit
UNITRODE CORP142 citations97
US5767664AJun 16, 1998
Bandgap voltage reference based temperature compensation circuit
UNITRODE CORP130 citations97
US5652501AJul 29, 1997
Voltage sensor for detecting cell voltages
UNITRODE CORP277 citations97
US5581170ADec 3, 1996
Battery protector
UNITRODE CORP169 citations97
US5422562AJun 6, 1995
Switching regulator with improved Dynamic response
UNITRODE CORP114 citations97
US5157269AOct 20, 1992
Load current sharing circuit
UNITRODE CORP133 citations97
US5929577AJul 27, 1999
Brushless DC motor controller
UNITRODE CORP122 citations96
US5627460AMay 6, 1997
DC/DC converter having a bootstrapped high side driver
UNITRODE CORP350 citations96
US5585741ADec 17, 1996
Impedance emulator
UNITRODE CORP60 citations96
US5554986ASep 10, 1996
Digital to analog coverter having multiple resistor ladder stages
UNITRODE CORP44 citations96
US5504416AApr 2, 1996
Battery charger circuit including battery temperature control
UNITRODE CORP65 citations96
US6144245ANov 7, 2000
Adaptive leading edge blanking circuit to eliminate spike on power switching transistor current sense signal
UNITRODE CORP59 citations95
US5416354AMay 16, 1995
Inverted epitaxial process semiconductor devices
UNITRODE CORP61 citations95
US5359276AOct 25, 1994
Automatic gain selection for high power factor
UNITRODE CORP90 citations95
US5004705AApr 2, 1991
Inverted epitaxial process
UNITRODE CORP54 citations95
US5793596AAug 11, 1998
Floating positive circuit breaker
UNITRODE CORP56 citations94
US5361041ANov 1, 1994
Push-pull amplifier
UNITRODE CORP58 citations94
US5847942ADec 8, 1998
Controller for isolated boost converter with improved detection of RMS input voltage for distortion reduction and having load-dependent overlap conduction delay of shunt MOSFET
UNITRODE CORP64 citations93
US5710697AJan 20, 1998
Power supply controller having frequency foldback and volt-second duty cycle clamp features
UNITRODE CORP65 citations92
US5648780AJul 15, 1997
Digital to analog converter
UNITRODE CORP42 citations92
US5338979AAug 16, 1994
Controllable bus terminator
UNITRODE CORP34 citations92
US5098861AMar 24, 1992
Method of processing a semiconductor substrate including silicide bonding
UNITRODE CORP49 citations92
US4795961AJan 3, 1989
Low-noise voltage reference
UNITRODE CORP41 citations92
US4716514ADec 29, 1987
Synchronous power rectifier
UNITRODE CORP98 citations92
US6344959B1Feb 5, 2002
Method for sensing the output voltage of a charge pump circuit without applying a load to the output stage
UNITRODE CORP96 citations91
US5581433ADec 3, 1996
Electronic circuit breaker
UNITRODE CORP37 citations91
US5532626AJul 2, 1996
Off-line controller having a line voltage detector and a switched current bootstrap circuit
UNITRODE CORP32 citations91
US5451860ASep 19, 1995
Low current bandgap reference voltage circuit
UNITRODE CORP24 citations91
US5414342AMay 9, 1995
Voltage mode pulse width modulation controller
UNITRODE CORP33 citations91
US5148054ASep 15, 1992
High accuracy MOSFET-switched sampling circuit
UNITRODE CORP24 citations91
US5691889ANov 25, 1997
Controller having feed-forward and synchronization features
UNITRODE CORP46 citations90
US5291384AMar 1, 1994
Phase shifted switching controller
UNITRODE CORP43 citations90
US5206540AApr 27, 1993
Transformer isolated drive circuit
UNITRODE CORP102 citations90
US4626478ADec 2, 1986
Electronic circuit device components having integral spacers providing uniform thickness bonding film
UNITRODE CORP30 citations89
US5751139AMay 12, 1998
Multiplexing power converter
UNITRODE CORP100 citations88
US5663878ASep 2, 1997
Apparatus and method for generating a low frequency AC signal
UNITRODE CORP108 citations88
US5969498AOct 19, 1999
Induction motor controller
UNITRODE CORP46 citations86
US5164813ANov 17, 1992
New diode structure
UNITRODE CORP29 citations86
US4901120AFeb 13, 1990
Structure for fast-recovery bipolar devices
UNITRODE CORP28 citations86
US5521528AMay 28, 1996
Controllable bus terminator
UNITRODE CORP17 citations81
US5272396ADec 21, 1993
Controllable bus terminator with voltage regulation
UNITRODE CORP17 citations81
US4551353ANov 5, 1985
Method for reducing leakage currents in semiconductor devices
UNITRODE CORP21 citations80
US4538168AAug 27, 1985
High power semiconductor package
UNITRODE CORP22 citations79
US4514587AApr 30, 1985
High power semiconductor package
UNITRODE CORP22 citations79
US5066869ANov 19, 1991
Reset circuit with PNP saturation detector
UNITRODE CORP10 citations74
US4849656AJul 18, 1989
Power-on detection circuit
UNITRODE CORP9 citations74
US5414583AMay 9, 1995
Current source bus terminator with voltage clamping and steady state power reduction
UNITRODE CORP16 citations73
US5336948AAug 9, 1994
Active negation emulator
UNITRODE CORP14 citations73
US5214322AMay 25, 1993
High voltage cmos power driver
UNITRODE CORP13 citations73
US4882533ANov 21, 1989
Linear integrated circuit voltage drop generator having a base-10-emitter voltage independent current source therein
UNITRODE CORP13 citations73
Showing the top 50 of 73 patents by PatentIndex Score.