Abstract: A radiation tolerant electrical component is provided without a radiation hardened material FET. A p-channel MOSFET provides switching capabilities in radiated environments because its gate voltage starts at a negative value and becomes more negative with exposure to radiation. Therefore, the gate is still controllable when exposed to radiation.

Abstract: A high voltage power supply having a low voltage input comprising a transformer having a primary winding, an input switching means coupled to the primary, first and second groups of secondary windings each of which are sub-divided into a plurality of component windings, and voltage converters coupled to each of the component windings for producing series output voltages of opposite polarities across the groups of secondary windings. First and second output switching means alternately switch the series output voltages to provide an intermediate voltage at a common point which is the input of a diode capacitor multiplier circuit thereby producing at its output a high voltage output.

Abstract: An electronic power factor corrector for a main equipment is employed to correct the power factor of an accessory to the main equipment. A voltage signal is generated in accordance with the rectified current input to the accessory. This voltage signal is summed with a voltage signal in accordance with the sampled input current or the current in the return current path from the main equipment. The summation signal is fed to a differential amplifier where it is compared with a reference signal in accordance with the current input to the main equipment. The output of the differential amplifier is fed as a control signal to a switching current source circuit which controls the current drawn by the main equipment and accessory to maintain the power factor close to unity.

Abstract: Related multiple characteristics of a single complex waveform are displayed as a variable length line of light with a floating spot which moves relative to the line. Logic circuitry, in response to an electrical input signal, causes energization of a plurality of the light emitters in response to the first input signal characteristic and the energization or extinguishing of a single light emitter in response to a second characteristic of the input signal.