Power Supplies Patents 1976-1980 Brought to you by SMPS Power Supplies


1980 - USA

Number

Title

Inventor Assignee Comments
4,183,080 DC to DC converter Liebman    
4,187,536 Device for energizing a D.C. motor, comprising an accumulator battery Govaert et al.    
4,188,585 Synchronized receiver power system Wissel    
4,189,764 Current controlled inverter Snyder    
4,191,918 Automatic electric battery charging apparatus Nicholls    
4,191,993 Inverter comprising at least two controllable load thyristors Kratz    
4,193,111 Unity power factor converter Wester    
4,196,468 Series-type independent inverter Shapiro et al.    
4,196,469 DC-AC Converter including synchronized switching Gurwicz    
4,202,031 Static inverter employing an assymetrically energized inductor Hesler et al.    
4,210,958 DC-DC Converter output stabilizing device Ikenoue et al.    
4,214,198 Electrical power unit Schneider    
4,217,632 Regulated power supply system including saturable reactor means Bardos et al. Gould  
4,218,735 Digital motor control system McCutcheon    
4,222,040 Cycle-type vehicle attachment Benson et al.    
4,227,127 Motor speed control circuit having improved starting characteristics Fukaya et al.    
4,227,243 Converters Gurwicz et al.    
4,228,493 Power control circuit and a switching mode power supply employing this circuit Sartre et al.    
4,233,529 Transistors power stages Whitlock    
4,236,187 Power supply voltage stabilizer Mochizuki et al.    
4,237,409 Multiple-battery battery charger Sugalski GE  

1979 - USA

Number

Title

Inventor Assignee Comments
4,135,234 Saturable reactor switch control for switching regulator power supplies Forge Boschert  
4,139,885 Fault protection circuit Overzet    
4,142,082 High frequency power supply microwave oven Israel    
4,143,414 Three phase AC to DC voltage converter with power line harmonic current … Brewster et al.    
4,145,643 Control apparatus for driving a pulse motor Maeda et al.    
4,146,827 Four-quadrant current-regulated energization of D.C. motor using pulse-width … Krohn    
4,146,832 Constant current series-switching regulator McConnell    
4,152,632 D.C. motor speed control apparatus having both armature Peterson    
4,153,863 DC Motor controller Schachte et al.    
4,156,273 Protection of a switching regulator Sato    
4,159,500 Modular line protector Baumbach    
4,160,945 High efficiency switching regulator Schorr    
4,162,435 Method and apparatus for electronically commutating a direct current motor … Wright    
4,163,278 Voltage supply circuit responsive to plural DC input levels Onoue et al.    
4,167,776 Inverter circuit Nygaard    
4,168,477 Electric regulators Burchall    
4,172,244 High voltage resistant signal transmission Zeis    
4,177,418 Flux controlled shunt regulated transformer Bueckner et al. IBM  

 

1978 - USA

Number

Title

Inventor Assignee Comments
4,079,295 Power supply arrangement with minimum interaction between plural loads den Hollander    
4,079,305 Power supply for high power loads den Hollander Wisconsin Alumni  
4,086,622 Frequency converter and method of operating same Vukasovic    
4,087,850 Power supply circuit Koizumi    
4,090,115 Transit vehicle chopper control apparatus Franz, Jr.    
4,090,116 Closed loop digital control system and method for motor control Lippitt    
4,091,335 Phase locked loop using current controlled ring oscillator Giolma et al.    
4,093,877 Semi-conductor switching circuit with transistor switching power loss reduction Pollmier    
4,096,559 Power supply circuit Sakurada et al.    
4,099,113 Numerical control servo system Hayashi    
4,099,225 Protective circuit for an inverter Nygaard    
4,104,570 Digital control system for motors Hamby et al.    
4,104,714 Converter arrangements Smith et al.    
4,106,086 Voltage multiplier circuit Holbrook et al.    
4,109,307 High power factor conversion circuitry Knoll GTE Sylvania  
4,114,026 Electronic desk-top accounting machine and calculator Fiorenza    
4,124,886 Generation of low frequency, high voltages Black et al.    
4,131,844 Static voltage balancer Hucker et al. Sundstrand  

 

1977 - USA

Number

Title

Inventor Assignee Comments
4,002,999 Static inverter with controlled core saturation Hesler GE  
4,004,251 Inverter transformer Hesler et al. GE  
4,005,350 Arrangement for protection of self-controlled inverter fed from an intermediate … Brenneisen Brown Boveri  
4,013,937 Naturally commutated cycloconverter with controlled input displacement power … Pelly et al. Westinghouse  
4,015,185 Semiconductor switching circuit with transistor switching power loss reduction … Pollmeier Nixdorf  
4,016,461 Starting circuit for switching regulator      
4,016,473 DC powered capacitive pulse charge and pulse discharge battery charger      
4,016,482 Pulse energy suppression network      
4,017,744 Digital firing pulse generator for thyristor power converters      
4,019,116 Commutation circuit for a converter      
4,019,117 Circuit arrangement for an inverter      
4,023,085 Numerical control system having a digitized phase loop      
4,027,200 High voltage generating circuit      
4,028,606 Control circuit for a switched-mode power supply, particularly for television …      
4,028,609 Digital firing pulse generator with pulse suppression      
4,030,015 Pulse width modulated voltage      
4,037,145 Multiple frequency chopper control      
4,041,364 Electromagnetically shielded electrical converter and an improved …      
4,042,871 Conversion system with overcurrent protection and start-up circuitry      
4,050,007 Control unit for thyristors of a cycloconverter      
4,058,758 Cooperative primary and secondary current limiting to selectively limit aggregate … Peterson Bell Lab  
4,059,746 Pulse distribution apparatus for linear interpolation in a ...      
4,060,758 Power switching circuit having a Darlington connected transistor pair      
4,063,306 Actively switched damping circuit      

1976 - USA

Number

Title

Inventor Assignee Comments
3,939,392 Inverters Chalmers et al.    
3,940,669 AC motor control system Tsuboi et al.    
3,940,682 Rectifier circuits using transistors as rectifying elements Park et al.    
3,942,085 Control apparatus of DC motors Tadakuma et al.    
3,942,090 Control process for operating a parallel-resonant circuit inverter that supplies … Matthes et al.    
3,947,748 Fault commutation system for static inverters Klein    
3,953,779 Electronic control system for efficient transfer of power through resonant circuits Schwartz    
3,955,353 Direct current power converters employing digital techniques used in electronic … Astle    
3,956,687 Staggered stage shunt regulator Lindenman    
3,958,169 Eliminating DC-DC converter switching transients in digital systems Hergenhan    
3,959,714 Transient turn-on protection circuit for power supplies Michelich Sperry  
3,963,973 Nonsaturating asymmetric DC/DC converter Vermolen    
3,963,975 Electromagnetically shielded electrical power supply with reduced commom … Gauper, Jr.    
3,963,976 Pulsed current battery charging method and apparatus Clark    
3,965,405 Driving and control system for D.C. motors Romano    
3,973,165 Power supply for a microwave magnetron Hester    
3,986,052 Power switching control circuit with enhanced turn-off drive system cutting rate … Hunter    
3,988,578 Method and apparatus for controlling the steplessly variable DC Motor controller Weber    
3,989,992 Pulse width modulated control system Schmidt    
3,989,995 Frequency stabilized single-ended regulated converter circuit Peterson    
3,989,997 Absolute-value circuit Ahmed    
3,990,014 Pulse control circuit having manually variable output period Hakozaki    


Copyright © 1998-2006 SMPS Power Supplies Inc. All rights reserved.