Abstract: A DC to DC converter with voltage regulator for converting a low level voltage source to a higher level DC, comprising an oscillator circuit with a low resistance starting current path, a rectifier circuit for rectifying the oscillator output, and a regulator for providing a regulated DC output voltage of predetermined level. The oscillator embodies one or more FET devices connected to provide an extremely low DC startup resistance as well as a low cutoff voltage characteristic. With this configuration, the low startup current from the voltage source can initiate switching so that oscillation can occur.

Abstract: A low current drain board bandwidth amplifier circuit for detecting low level signals of positive or negative amplitude, and for producing an output pulse whenever the input signals exceed a predetermined threshold level. A first operational transconductance amplifier is used as an amplifier, followed by a pair of operational transconductance amplifiers employed as comparators. The reference voltage for each comparator is set through a resistive circuit driven by one or more current sources. Feedback means are employed with the amplifier OTA to reduce first stage offset, and sensitivity is established with minimal adjustment requirements.