Abstract: Disclosed is an electronic system, that controls simultaneously two or more asynchronous pulse modulators such that the sum of all pulses is modulated as if emanating from one single source.

Abstract: Disclosed is a class of power converters which extract electric energy from a source of A.C. or D.C. power and transform this energy to a desired and closely controlled voltage level for use by a pulse demanding load such as a pulsed radar or laser system. The converter eliminates the need for a D.C. link anywhere in the converter system and the need for low frequency power filters. The invention includes a transformerless circuit with galvanic isolation between system input and output terminals and controlled voltage scaling.

Abstract: Disclosed is a class of power converter which extracts electric energy from a source of A.C. or D.C. power and conveys this energy through series resonant circuits to two or more loads in an independently controllable form.

Abstract: Disclosed is a bilateral device to transform a.c. polyphase power to controllable a.c. or d.c. power, or to perform this transformation in reverse, by use of a single high frequency link comprising series resonant circuits. A cyclo-up converter transforms the incoming low frequency power to substantially higher frequencies of the order of kilohertz directly and without the interposition of a d.c. link, and thus, without the therewith associated low pass filters. The high frequency link includes series resonant circuits which facilitate the natural current commutation of electronic switching elements, such as controlled rectifiers. The energy is transformed from the high frequency link to a lower frequency output circuit via a cyclo-down converter, as well known in the art. Again, no d.c. link is used for the process. The low frequency output circuit referred to above, can operate at zero frequency and thus feed a d.c. load.