Abstract: A converter circuit includes a magnetic core, a primary winding, a secondary winding, a main rectification circuit, and an auxiliary rectification circuit. The primary winding and the secondary winding are wound around the magnetic core. The main rectification circuit and the auxiliary rectification circuit are both connected to the secondary winding and produce output voltages having different magnitudes. The auxiliary voltage powers the control and drive circuits for both the primary switches and the synchronous rectifiers used for the main rectification circuit.

Abstract: A converter circuit comprises a magnetic core, a primary winding, a secondary winding, a main rectification circuit, an auxiliary rectification circuit. The primary winding and the secondary winding are wound around the magnetic core. The main rectification circuit and the auxiliary rectification circuit are both connected to the secondary winding and produce output voltages having different magnitudes. The auxiliary voltage powers the control and drive circuits for both the primary switches and the synchronous rectifiers used for the main rectification circuit.

Abstract: Disclosed is a secure data system power supply having an input coupleable to an input voltage line and an output coupleable to a secure data system and providing isolation between the input voltage line and the secure data system such that information communicated within the secure data system is undetectable from the input voltage line. The power supply does not utilize a linear current source for isolation, and thereby greatly reduces power loss. A constant power flyback converter is adapted to be coupled between the input voltage line and the secure data system. The constant power flyback converter takes as an input from the input voltage line a constant power input and provides at a converter output an output signal for use in powering the secure data system. A shunt voltage regulator is coupled to the converter output and maintains the output signal at a substantially constant voltage.

Abstract: The average RF power output of an independent sideband diversity radio transmitter, modulated by a multiple tone data signal, is increased while the RF output peak envelope voltage is held constant. For diversity operation the same information, as a combination of the data tones, is applied to both the upper and lower sideband channels of the RF translator. Adding predetermined phase shifts between the upper and lower sideband audio tone pairs results in a reduced peak envelope voltage at the composite RF output. The final RF amplifier gain can then be increased resulting in a higher average RF power output.