Engineering topics
Publications and source records attributed to Raposa, F. L..
A circuit for suppressing parasitic oscillations across an inductor operating in a resonant mode is described. The circuit includes a switch means and resistive means connected serially across the inductor. A unidirectional resistive-capacitive network is also connected across the inductor and to the switch means to automatically render the switch means conducting when inductive current through the inductor ceases to flow.
A self-stabilizing voltage regulator is described. Direct current voltage regulation employing a series transistor rendered conductive during various portions of a cycle is controlled by saturation of an autotransformer. The constant volt-second capacity of the transformer provides conduction time inverse to the input voltage whereby average output voltage is maintained constant. Conduction commenced in response to short gate signals, and resistor feedback for degenerative turn-off of the transistor was after transformer saturation. Standard output filters are also included.
Nondissipative DC to DC regulator converter electrical design criteria and circuit development for satellite solar power source system
Nondissipative dc to dc regulator-converter study
Nondissipative dc to dc voltage regulator frequency converter
Breadboard testing of chopper and booster regulators for application to DC-to-DC regulator-converter