Patent
Unity power factor power supply
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TLDR
In this paper, a boost converter connected to the alternating current line is controlled to draw sinusoidal current from the line by operating as a current regulator having a current reference control signal which tracks the line voltage waveform, thereby to minimize the required input current for a given power output.Abstract:
A unity power factor power supply which includes a boost converter connected to the alternating current line which is controlled to draw sinusoidal current from the line by operating as a current regulator having a current reference control signal which tracks the line voltage waveform, thereby to minimize the required input current for a given power output.read more
Citations
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References
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Patent
Boost power supply having power factor correction circuit
TL;DR: In this article, a boost power supply has a full-wave rectifier driving an inductor, diode, and the parallel combination of a filter capacitor and load, and a shunting switch connected between the inductor and diode is periodically closed to draw current through the induction, thereby charging the inductors.
Patent
Solid state regulated power transformer with waveform conditioning capability
TL;DR: In this article, an AC input signal is chopped in a solid state switching converter at a frequency very much larger than the input signal and then filtered to attenuate the high frequency component while passing the frequency of the AC input signals, and a feedback signal modulates the duty cycle of the switching converter to provide automatic voltage regulation under varying loads and lagging power factors.
Proceedings ArticleDOI
Sinusoidal line current rectification with a 100kHZ B-SIT step-up converter
TL;DR: In this article, a step-up converter circuit for the sinusoidal line current rectification at a unity power factor is described, where a Bipolar-Static-Induction-Transitor (SIT) with extremely fast switching times is utilized.
Patent
Boost feedforward pulse width modulation regulator
TL;DR: In this article, the duty cycle is determined by varying the error signal level with respect to the instantaneous level of a sawtooth waveform, under the influence of a feedforward portion of the input voltage.
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Dual mode dc/dc converter.
TL;DR: In this article, a DC/DC converter operates at peak efficiency in either of two output current level states in response to the power demands of an associated electronic device, thereby reducing wasted current to a minimum.