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Published in Philip A. Laplante, Comprehensive Dictionary of Electrical Engineering, 2018
fluoroscopy discharge, predominantly emits 257 nm radiation (ultraviolet) which is absorbed by a phosphor on the inside wall of the lamp tube; the phosphor fluoresces, emitting a white light spectrum in the visible. fluoroscopy a mounted fluorescent screen on which the internal structure or parts of an optically opaque object may be viewed as shadows formed by the transmission of X-rays through the object. flush the act of clearing out all actions being processed in a pipeline structure. This may be achieved by aborting all of those actions, or by refusing to issue new actions to the pipeline until those present in the pipeline have left the pipeline because their processing has been completed. flux (1) lines that indicate the intensity and direction of a field. Intensity is usually represented by the density of the lines. (2) a measure of the intensity of free neutron activity in a fission reaction, closely related to power, the product of neutron density and neutron velocity, e.g., neutrons per square cm per second. flux density lines of magnetic flux per unit area, measured in tesla; 1T = 1W b/m 2 . flux line See direction line. transistor is on and releases energy to the output when the transistor is off. The primary and the secondary of the transformer conduct alternately. The advantage of this topology is that through the addition of a second winding on the input inductor, i.e., to form a transformer, electrical isolation is achieved. This type of transformer is called a flyback transformer or flyback inductor. See also buck-boost transformer. flyback inductor See flyback converter. See flyback converter.
Practical Aspects in Building Three-Phase Power Converters
Published in Dorin O. Neacsu, Switching Power Converters, 2017
Despite being the most critical design component, the actual design and construction of a flyback transformer is beyond the scope of this book as flyback transformer can be acquired off-the-shelves or by order with system-level requirements.
Bi-directional DC/DC Converters Used in Interfacing ESSs for RESs and EVs: A Review
Published in IETE Technical Review, 2023
Om Prakash Jaga, Ritesh Gupta, Balaram Jena, Sumit GhatakChoudhuri
Figure 12(a) [54] depicts a forward-flyback topology, a forward and flyback converters hybrid combination. In a forward-flyback, DC/DC converter topology, the windings of the isolation transformer are connected in series on the HV side and parallel on the LV side, respectively. The topology consists of four active switches, two isolation transformers, an active clamp capacitor, CDC, total leakage inductance (both transformers) and LK, respectively. Merits of forward-flyback converter include low voltage spikes across switches, filtering action of flyback transformer (which works as a filter inductor) and easy to realise soft-switching which makes the converter suitable for high power applications. Converter peak efficiency is observed to be at 94.5% in boost mode and 93.5% in buck mode.