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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Glossary of power electronics | 3/6 | https://en.wikipedia.org/wiki/Glossary_of_power_electronics | reference | science, encyclopedia | 2026-05-05T07:51:12.696950+00:00 | kb-cron |
DC conversion factor for DC conversion, the ratio of the DC power value on the load side to that on the source side.
(electronic) DC (power) conversion Electronic conversion from DC to DC
DC filter A filter on the DC side of a converter, designed to reduce the ripple in the associated system.
DC form factor The ratio of the rms value to the mean value averaged over a full period of a periodically varying quantity having a non zero DC component.
DC power The product of the direct voltage and the direct current (mean values).
DC ripple factor The ratio of half the difference between the maximum and minimum value of a pulsating direct current to the mean, value of this current.
direct AC/DC converter An electronic AC/DC converter without a DC or AC link.
direct AC converter An AC converter without a DC link.
direct (power) conversion Electronic conversion without a DC or AC link.
direct DC converter DC chopper A DC converter without an AC link.
direct commutation A commutation between two principal arms without transfer through any auxiliary arms.
direct inverter An inverter without a DC link.
direct rectifier A rectifier without a DC or AC link.
direct voltage regulation The difference between the conventional no-load direct voltage and the direct voltage at load at the same trigger delay angle excluding the correcting effect of stabilizing means if any.
double converter A current stiff reversible AC/DC converter with direct current in both directions.
double-way connection (of a converter) A converter connection such that the current through each of the phase terminals of the AC circuit is bidirectional.
duty cycle (capacitor)
- continuous duty; Operation time such that a capacitor is at thermal equilibrium for most of the time.
- intermittent duty ; Discontinuous working or operation with variable loads which should be described in terms of ON/OFF or HIGH/LOW periods with their durations.
== E ==
electronic AC (power) switch An electronic power switch capable of switching alternating current.
electronic AC power controller A unit which is able to operate as a controllable direct AC voltage converter as well as an electronic AC switch.
electronic DC (power) switch An electronic power switch capable of switching direct current.
electronic device A device the function of which is based on charge carriers moving through a semiconductor, a high vacuum or a gas discharge.
elementary frequency The reciprocal of the elementary period.
elementary period The duration of one cycle of the phenomena that are periodically repeated.
electronic power filter active power filter A converter for filtering.
electronic (power) switching Switching an electric power circuit by means of electronic valve devices.
electronic (power) switch An operative unit for electronic power switching comprising at least one controllable valve device.
electronic valve device An indivisible electronic device for electronic power conversion or electronic power switching, comprising a single non-controllable or bistably controlled unidirectionally conducting current path.
equivalent series resistance of a capacitor An effective resistance which, if connected in series with an ideal capacitor of capacitance value equal to that of the capacitor in question, would have a power loss equal to the active power dissipated in that capacitor underspecified operating conditions.
external commutation A commutation where the commutating voltage is supplied by a source outside the converter or electronic switch.
external quenching A method of quenching in which the quenching results from causes external to the electronic valve device.
== F ==
false firing The firing of a latching valve device or an arm consisting of such devices at an incorrect instant.
flyback converter A DC converter where the energy is transferred from the source side to the load side during the idle interval(s) of the controllable principal arm(s) after being stored in an inductance.
firing The establishment of current in the conducting direction in a latching valve device or an arm consisting of such devices.
firing failure A failure to achieve conduction in a latching valve device or an arm consisting of such devices during the conduction interval.
forward breakdown A failure that permanently deprives a controllable valve device or an arm consisting of such devices of its property to block forward voltage.
forward converter A DC converter where the energy is transferred from the source side to the load side during the conduction interval(s) of the controllable principal arm(s).
four-quadrant converter An AC/DC or DC converter with two directions of DC power flow, associated with two directions of direct voltage and two directions of direct current.
free-wheeling arm A by-pass arm containing only non-controllable valve devices.
frequency converter An AC converter for changing the frequency.
forced characteristic (of a line commutated converter) A characteristic obtained by additional means, e.g. stabilization, with specified variation limits of influence quantities.
fully controllable connection A uniform connection with all principal arms controllable.
fundamental factor The ratio of the rms value of the fundamental component to the rms value of the alternating quantity.
fundamental power The active power determined by the fundamental components of voltage and current.
== H ==
half-controllable connection A non-uniform connection with half the number of principal arms controllable.
harmonic content The quantity obtained by subtracting from an alternating quantity its fundamental component.
(total) harmonic factor The ratio of the rms value of the harmonic content of an alternating quantity to the r.m.s. value of the quantity.
high vacuum valve device An electronic valve device in which the degree of vacuum is so high that the effects of ionization are negligible.
hold-off interval The interval between the instant when the on-state current of a latching valve device has decreased to zero and the instant when the same valve device is subjected to reapplied off-state voltage.
== I ==
indirect AC converter An AC converter with a DC link.
indirect AC/DC converter An electronic AC/DC converter with a DC or AC link.
indirect commutation A series of commutations from one principal arm to another or back to the original one by successive commutations via one or more auxiliary arms.