Matches 1 - 20 out of 20
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6841976 Multi-line power flow transformer for compensating power flow among transmission lines  
A multi-line power flow transformer implements power flow control among multiple transmission lines in an n-phase power system. The transformer has an exciter unit with n primary windings. Each...
6420856 Versatile power flow transformers for compensating power flow in a transmission line  
A series-compensating power flow transformer implements power flow control in a transmission line of an n-phase power transmission system, where each phase of the power transmission system has a...
5166597 Phase-shifting transformer system  
A faster, more controllable phase-shifting transformer system is provided, along with a method of retrofitting and upgrading a preexisting system for faster operation, and a method of applying a...
4602205 Battery voltage regulating system  
A battery voltage regulating system for an automotive vehicle, wherein a first and a second comparators for sensing a battery voltage and a delay circuit connected to the comparators and...
4500829 Advance and retard phase-shift transformer  
A phase-shift transformer circuit providing advance or retard phase shift at any predetermined phase shift angle. The phase shift angle is determined by the ratio of the main and short windings of...
4134065 Transducer for directly converting mechanical displacement to phase information  
A linear variable phase transformer directly converts displacement to phase information. In one form the relationship of such displacement and such phase information is substantially linear or...
3851330 AMPLITUDE-TO-PHASE CONVERSION CIRCUIT  
A circuit for converting the angular position of the shaft of a resolver into a phase shift of a carrier wave. Such a conversion circuit may be used for generating a binary number representative of...
3617863 CONSTANT AMPLITUDE-VARIABLE PHASE CIRCUIT  
An electronic circuit including an operational amplifier having a differential input stage coupled to passive linear input and feedback circuit components for converting three wire synchro-type...
3470459 ASYNCHRONOUS LOAD LIMITING TRANSFORMER  
3401330 Synchro transformer network for deriving an ac voltage that linearly varies in phaseas a function of rotor position  
3350550 Amplifierless cascade resolvers with means to minimize phase shift between stages  
3319154 Balanced phase shift transformer  
3211993 Synchro read-out circuit  
3079548 Electromechanical signalling apparatus  
3050668 Feedback and command signal combining servosystem to produce quadrature output control voltages  
2968759 Phase rotation circuit  
2880391 Apparatus and method for determining phase angles  
2857564 Voltage balancing system  
2852733 Apparatus for shifting the phase of an electrical current  
2791744 Wide band phase shifter  
Matches 1 - 20 out of 20