Power Supplies Patents 1991-1993 Brought to you by SMPS Power Supplies


1993 - USA power supply related patents

Number

Title

Inventor Assignee Comments
5,177,460 Summing transformer for star-delta inverter having a single secondary winding … Dhyanchand et al.    
5,177,675 Zero voltage, zero current, resonant converter Archer    
5,179,512 Gate drive for synchronous rectifiers in Fisher    
5,180,964 Zero-voltage switched FM-PWM converter Ewing    
5,181,159 AC to DC converter having an Peterson    
5,204,809 H-driver DC-to-DC converter utilizing mutual inductance Andresen IBM  
5,206,800 Zero voltage switching power converter with secondary side regulation Smith    
5,208,739 Integrated magnetic power converter Sturgeon    
5,227,941 Protective circuit for diode switching device Rubin    
5,227,964 Switching power supply with overcurrent protection circuit Furuhata    
5,231,563 Square wave converter having an improved zero voltage switching option Jitaru    
5,235,501 High efficiency voltage converter Stuart et al. The U. of Toledo  
5,245,520 Asymmetrical duty cycle power converter Imbertson    
5,247,239 Dual DC/DC voltage converter power system Yamamura et al. Motorola, Inc.  
5,254,951 Circuit for measuring discharging and charging current of a battery providing … Goto et al.    
5,260,607 Snubber circuit for power converter Kinbara Mitsubishi Denki  
5,262,930 Zero-voltage transition PWM converters Hua    
5,264,736 High frequency resonant gate drive for a power MOSFET Jacobson    
5,264,780 On time control and gain circuit Bruer et al. IBM  
5,264,782 Dropout recovery circuit Newton IBM  
5,267,133 Switching power source Motomura et al. NEC  
5,274,321 Battery charger Matsuda    
5,274,543 Zero-voltage switching power converter with lossless synchronous rectifier gate … Loftus AT&T Bell Lab  

1992 - USA power supply related patents

Number

Title

Inventor Assignee Comments
5,091,840 Power conversion scheme employing shorting means to control current … Walker GE  
5,099,406 DC-DC converter with surge voltage prevention Harada et al.    
5,101,335 DC-to-DC converter using coupled inductor current sensing and predetermined … Ludden    
5,107,151 Switching circuit employing electronic devices in series with an inductor to avoid … Cambier    
5,113,334 High efficiency converter Tuson et al. Rifala Pty. Ltd.  
5,113,337 High power factor power supply Steigerwald GE  
5,119,283 High power factor, voltage-doubler rectifier Steigerwald et al. GE  
5,122,728 Coupled inductor type DC to DC converter with single magnetic component Ashley    
5,126,931 Fixed frequency single ended forward converter Jitaru    
5,130,561 Switching mode power supplies with controlled synchronization Elliott    
5,130,917 Power inverter snubber circuit Shekhawat    
5,132,888 Interleaved bridge converter Lo et al. Unisys Corp.  
5,132,889 Resonant-transition DC-to-DC converter Hitchock et al. IBM  
5,134,355 Power factor correction control for switch-mode power converters Hastings TI  
5,140,510 Constant frequency power converter Myers Motorola  
5,140,512 Zero voltage switching DC/DC converter O'Sullivan    
5,140,514 Regulation of D.C. voltage of a pulse-width modulated rectifier using spatial … Tuusa et al.    
5,144,204 Tapped-inductor boost convertor for Nerone    
5,146,394 Fly back converter switching power supply device Ishii Matsushita  
5,146,398 Power factor correction device provided with a frequency and amplitude … Vila-Masot et al. LED  
5,146,399 Switching power apparatus having high high power factor and comprising of … Gucyski    
5,155,673 Thyristor converter protection method and apparatus Takahashi    
5,157,580 Protective plug for connector banks of telecommunication and data systems Hegner    
5,159,541 Asymmetrical pulse width modulated resonant DC/DC converter Jain Northern Telecom  
5,163,855 Connector bank for telecommunication systems Gerke    
5,164,656 Switching power supply with constant or sinusoidal input current Gucyski    
5,166,869 Complementary electronic power converter Hesterman    
5,170,333 Switching regulator operating in a continuous and discontinuous mode Niwayama Mitsubishi Denki  
5,172,044 Multi-rate constant voltage battery charger with display Sasaki et al.    
5,172,309 Auxiliary quasi-resonant dc link converter DeDoncker et al.    
5,173,846 Zero voltage switching power converter Smith Astec  

1991 - USA power supply related patents

Number

Title

Inventor Assignee Comments
4,984,147 Control method for PWM converter Araki Mitsubishi  
4,992,720 Charge control circuit for cordless telephone system Hata    
4,999,760 High voltage rectifier and associated control electronics Tietema    
5,001,620 Power factor improvement Smith Astec  
5,006,975 Power factor correction circuit Neufeld Cherry  
5,008,794 Regulated flyback converter with spike suppressing coupled inductors Leman    
5,008,795 Switched capacitor interleaved forward power converter Parsley Unisys Corp.  
5,014,180 Lossless snubber circuit Nuechterlein Sundstrand Corp.  
5,017,800 AC to DC to AC power conversion apparatus with few active switches and input … Divan Wisconsin Alumni  
5,019,770 Switching power source device having energy recovery Harada et al. Nishimu Co.  
5,019,957 Forward converter type of switched power supply Wilkinson    
5,027,264 Power conversion apparatus for DC/DC conversion using dual active bridges DeDoncker et al. Wisconsin Alumni  
5,028,861 Strobed DC-DC converter with current regulation Pace et al. Motorola  
5,029,269 Delayed power supply overvoltage shutdown apparatus Elliot    
5,038,263 Ripple current reduction circuit Marrero    
5,038,267 Soft-switching power converter for operation in discrete pulse modulation and … DeDoncker et al. GE  
5,043,857 Real-time control of PWM inverters by pattern developmnet from storage … Kirchberg, Jr.    
5,045,712 Synchronized switched mode power supplies Baggenstoss    
5,047,913 Method for controlling a power converter using an auxiliary resonant … DeDoncker et al. GE  
5,049,804 Universal battery charging system and a method Hutchins    
5,055,991 Lossless snubber Carroll et al. Compaq  
5,057,986 Zero-voltage resonant transition switching power converter Henze et al. Unisys Corp.  
5,059,887 Step-up and step-down chopper device Iida    
5,060,130 High-efficiency, high-density, power supply including an input boost power supply Steigerwald    
5,060,131 DC to DC converter power supply with feedback controlled constant current … Sikora    
5,066,900 DC/DC converter switching at zero voltage Basset    
5,067,066 Voltage-mode quasi-resonant dc/dc converter Chida    
5,072,171 High efficiency power converter employing a synchronized switching system Eng    
5,073,849 Resonant DC to DC converter switching at zero current Morris    
5,075,838 Energy efficient voltage snubber circuit Schnetzka et al. York Intl. Corp.  


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