Downloaded - Dipartimento di Ingegneria dell`Informazione
... The realization of high quality factor (Q) integrated inductors is one of the most intriguing problems in the design of RF front-ends for integrated transceivers. In a previous work [l] the results which can be obtained in terms of inductance (L) and Q values by using a novel circuit topology have b ...
... The realization of high quality factor (Q) integrated inductors is one of the most intriguing problems in the design of RF front-ends for integrated transceivers. In a previous work [l] the results which can be obtained in terms of inductance (L) and Q values by using a novel circuit topology have b ...
Chapter18 - Free-Energy
... electromagnets, leading to the formation in them of different currents. To this end, electromagnets which are connected in series can be shunted by capacitor, and connected in parallel with the electromagnets used but with a somewhat different number of turns. The resulting voltage distribution on t ...
... electromagnets, leading to the formation in them of different currents. To this end, electromagnets which are connected in series can be shunted by capacitor, and connected in parallel with the electromagnets used but with a somewhat different number of turns. The resulting voltage distribution on t ...
Transient over Voltage Due to Switching Operation of Industrial
... It has been observed that control of motors of low power rating is occasionally done by vacuum contactors as well. The vacuum devices are robust, safe and occupy less space compared to oil breakers. Further, current interruption occurs in a shorter time than oil breakers. Some of the industries have ...
... It has been observed that control of motors of low power rating is occasionally done by vacuum contactors as well. The vacuum devices are robust, safe and occupy less space compared to oil breakers. Further, current interruption occurs in a shorter time than oil breakers. Some of the industries have ...
Introduction to Switched-Mode Power Supply (SMPS) circuits
... of somewhat lower magnitudes. One needs to specify the tolerable limits on the ripple voltages, short-circuit protection level of current (if any) and the nature of output volt-current curve during over-current or short circuit (the output voltage magnitude should reduce or fold back towards zero, g ...
... of somewhat lower magnitudes. One needs to specify the tolerable limits on the ripple voltages, short-circuit protection level of current (if any) and the nature of output volt-current curve during over-current or short circuit (the output voltage magnitude should reduce or fold back towards zero, g ...
DC Current Measurement Using Magnetic Flux in an Electronic Null
... to obtain the maximum accuracy. The turns ratio of a 100 A dc current transformer is, for example, 1:1000, i.e. Im = 100ma for In = 100 amperes. Hall effect DC transducers have a typical accuracy of +/- 1% from 0 to 50KHz and the response time<1 microsecond. DC Current transformers are used in power ...
... to obtain the maximum accuracy. The turns ratio of a 100 A dc current transformer is, for example, 1:1000, i.e. Im = 100ma for In = 100 amperes. Hall effect DC transducers have a typical accuracy of +/- 1% from 0 to 50KHz and the response time<1 microsecond. DC Current transformers are used in power ...
Need for protection
... before the fault causes irreparable damage. • Speed: To operate speedily when it is called upon to do so, thereby minimizing damage to the surroundings and ensuring safety to personnel. To meet all of the above requirements, protection must be reliable which means it must be: • Dependable: It must t ...
... before the fault causes irreparable damage. • Speed: To operate speedily when it is called upon to do so, thereby minimizing damage to the surroundings and ensuring safety to personnel. To meet all of the above requirements, protection must be reliable which means it must be: • Dependable: It must t ...
MP020-5 - Monolithic Power System
... The MP020-5's variable off-time control allows a flyback converter to operate in discontinuous conduction mode. The MP020-5 also features protection functions such as VCC under-voltage lockout, over-current protection, overtemperature protection, open circuit protection (OCkP) and over-voltage prote ...
... The MP020-5's variable off-time control allows a flyback converter to operate in discontinuous conduction mode. The MP020-5 also features protection functions such as VCC under-voltage lockout, over-current protection, overtemperature protection, open circuit protection (OCkP) and over-voltage prote ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The self-oscillating flyback converter is a robust, low component count circuit that has been widely used in low power off-line applications. It is also referred to as ringing choke converter (RCC) since the regenerative signal for oscillation comes from ringing of transformer choke. The merits of t ...
... The self-oscillating flyback converter is a robust, low component count circuit that has been widely used in low power off-line applications. It is also referred to as ringing choke converter (RCC) since the regenerative signal for oscillation comes from ringing of transformer choke. The merits of t ...
display
... and the bottom coil provide the interface between each transformer and its external signals. Input logic transitions are encoded using 1 ns pulses routed to the primary side of a given transformer. These pulses couple from one transformer coil to another and are detected by the circuitry on the seco ...
... and the bottom coil provide the interface between each transformer and its external signals. Input logic transitions are encoded using 1 ns pulses routed to the primary side of a given transformer. These pulses couple from one transformer coil to another and are detected by the circuitry on the seco ...
Surge Current Protection Using Super Conductors Report New
... SCFCL can be tailored by varying the electric field induced along tube’s circumference during the fault. The decisive parameters for this SCFCL design are the number of primary turns and the height, diameter and wall thickness of the superconducting tube. The cross section of the iron core is design ...
... SCFCL can be tailored by varying the electric field induced along tube’s circumference during the fault. The decisive parameters for this SCFCL design are the number of primary turns and the height, diameter and wall thickness of the superconducting tube. The cross section of the iron core is design ...
Modeling Current Transformer (CT) Saturation for Detailed
... issues and should be given due consideration. System Overview The AC system shown in Figure 2 consists of two 230 kV, 60 Hz Thevanin voltage sources, a 75 MVA load and three 230 kV transmission lines (125 km, 75 km and 200 km). A single phase (Phase A) to ground fault is applied between the fi ...
... issues and should be given due consideration. System Overview The AC system shown in Figure 2 consists of two 230 kV, 60 Hz Thevanin voltage sources, a 75 MVA load and three 230 kV transmission lines (125 km, 75 km and 200 km). A single phase (Phase A) to ground fault is applied between the fi ...
Transformer types
A variety of types of electrical transformer are made for different purposes. Despite their design differences, the various types employ the same basic principle as discovered in 1831 by Michael Faraday, and share several key functional parts.