MAX1639 High-Speed Step-Down Controller with Synchronous Rectification for CPU Power ________________General Description
... evaluation kit PC board layout as necessary. This circuit represents a good set of trade-offs between cost, size, and efficiency while staying within the worst-case specification limits for stress-related parameters, such as capacitor ripple current. The MAX1639 circuit was designed for the specifie ...
... evaluation kit PC board layout as necessary. This circuit represents a good set of trade-offs between cost, size, and efficiency while staying within the worst-case specification limits for stress-related parameters, such as capacitor ripple current. The MAX1639 circuit was designed for the specifie ...
Transformer - KFUPM Faculty List
... proximity to the primary winding, but is electrically isolated from it. The alternating current that flows through the primary winding establishes a timevarying magnetic flux, some of which links to the secondary winding and induces a voltage across it. The magnitude of this voltage is proportional ...
... proximity to the primary winding, but is electrically isolated from it. The alternating current that flows through the primary winding establishes a timevarying magnetic flux, some of which links to the secondary winding and induces a voltage across it. The magnitude of this voltage is proportional ...
fundemental principes of working in resonant converter
... switching circuit. However, the total amount of switching loss generated in the system remains the same. The loss avoided, has in fact, just moved to the snubber circuit. Higher energy conversion efficiency at high frequency switching can be obtained by manipulating the voltage or current at the mom ...
... switching circuit. However, the total amount of switching loss generated in the system remains the same. The loss avoided, has in fact, just moved to the snubber circuit. Higher energy conversion efficiency at high frequency switching can be obtained by manipulating the voltage or current at the mom ...
Electromagnetic brake From Wikipedia, the free encyclopedia Jump
... There are actually two engagement times to consider in an electromagnetic brake. The first one is the time it takes for a coil to develop a magnetic field, strong enough to pull in an armature. Within this, there are two factors to consider. The first one is the amount of ampere turns in a coil, whi ...
... There are actually two engagement times to consider in an electromagnetic brake. The first one is the time it takes for a coil to develop a magnetic field, strong enough to pull in an armature. Within this, there are two factors to consider. The first one is the amount of ampere turns in a coil, whi ...
12 - Research Script International Journals
... inverter are hard switching. This paper proposes a “softcommutating” method for an isolated boost full bridge converter in high power –application. in boost operation isolated boost converter. The boost converter topology has been extensively used in various ac/dc and dc/dc applications. In fact, th ...
... inverter are hard switching. This paper proposes a “softcommutating” method for an isolated boost full bridge converter in high power –application. in boost operation isolated boost converter. The boost converter topology has been extensively used in various ac/dc and dc/dc applications. In fact, th ...
Electromagnetic Induction
... now: ¾ The reverse is true also: a magnetic field can generate an electrical current ¾ This effect is called induction: In the presence of a changing magnetic field, and electromotive force (voltage) is produced. demo: coil and galvanometer Apparently, by moving the magnet closer to the loop, a cur ...
... now: ¾ The reverse is true also: a magnetic field can generate an electrical current ¾ This effect is called induction: In the presence of a changing magnetic field, and electromotive force (voltage) is produced. demo: coil and galvanometer Apparently, by moving the magnet closer to the loop, a cur ...
AMT 109C Course Notes
... The inner level allows for two electrons, then 8, then 8, 18, 32, 18 etc. with the outer shell always being no more than 8. Depending on the number of electrons in the outer shell some atoms allow electron movement easily, some not so easily, and some resist such movement a lot. These are conductors ...
... The inner level allows for two electrons, then 8, then 8, 18, 32, 18 etc. with the outer shell always being no more than 8. Depending on the number of electrons in the outer shell some atoms allow electron movement easily, some not so easily, and some resist such movement a lot. These are conductors ...
LTC3414 - 4A, 4MHz, Monolithic Synchronous Step-Down Regulator
... efficiency and component size. High frequency operation allows the use of smaller inductor and capacitor values. Operation at lower frequencies improves efficiency by reducing internal gate charge losses but requires larger inductance values and/or capacitance to maintain low output ripple voltage. ...
... efficiency and component size. High frequency operation allows the use of smaller inductor and capacitor values. Operation at lower frequencies improves efficiency by reducing internal gate charge losses but requires larger inductance values and/or capacitance to maintain low output ripple voltage. ...
GIGAVAC GX46, EPIC High Power DC Contactor
... 6 Contactor has two coils. Both are used for pick-up, and then in approximately 75 milliseconds, one coil is electronically removed from the coil drive circuit. The remaining coil supplies low continuous hold power sufficient for the contactor to meet all of its specified performance specifications. ...
... 6 Contactor has two coils. Both are used for pick-up, and then in approximately 75 milliseconds, one coil is electronically removed from the coil drive circuit. The remaining coil supplies low continuous hold power sufficient for the contactor to meet all of its specified performance specifications. ...
Practical exercises for learning to construct NMR/MRI probe circuits
... any direct connections to the circuit under test, a real convenience. One should build three sniffer loops of various sizes, just to have at hand. The student can verify by varying L (or C) that the resonant frequency changes according to Eq. [1]. If the number of turns n is doubled holding r and x ...
... any direct connections to the circuit under test, a real convenience. One should build three sniffer loops of various sizes, just to have at hand. The student can verify by varying L (or C) that the resonant frequency changes according to Eq. [1]. If the number of turns n is doubled holding r and x ...
MK484 SHORTWAVE RADIO
... observed; it is important to keep the aerial circuit and thus the aerial coil L2 well away from the main coil L1 and the receiver’s input. Otherwise the signal can in effect bypass or “leapfrog’’ ahead instead of passing through the aerial coil! Although the prototype was built on stripboard, a term ...
... observed; it is important to keep the aerial circuit and thus the aerial coil L2 well away from the main coil L1 and the receiver’s input. Otherwise the signal can in effect bypass or “leapfrog’’ ahead instead of passing through the aerial coil! Although the prototype was built on stripboard, a term ...
Chapter 13
... maximum (Imax = Vs/R) • Above and below resonance, the current decreases because the impedance increases • At resonance, impedance is equal to R • The voltages across L and C are maximum at resonance, but they are also equal in magnitude and 180° out of phase, so they cancel (the total voltage acros ...
... maximum (Imax = Vs/R) • Above and below resonance, the current decreases because the impedance increases • At resonance, impedance is equal to R • The voltages across L and C are maximum at resonance, but they are also equal in magnitude and 180° out of phase, so they cancel (the total voltage acros ...
Arc-quenching magnetically controlled reactors
... In this mode, current pulses of 1 msec duration are generated by the ACS and propagated into the network through the AQMCR signal winding. The recurrence rate of current pulses depends on reactor power and network conditions, and is between 3 to 10 Hz. Current pulse charges network capacitance, and ...
... In this mode, current pulses of 1 msec duration are generated by the ACS and propagated into the network through the AQMCR signal winding. The recurrence rate of current pulses depends on reactor power and network conditions, and is between 3 to 10 Hz. Current pulse charges network capacitance, and ...
Inductor
An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. When a current flows through it, energy is stored temporarily in a magnetic field in the coil. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction, According to Lenz's law the direction of induced e.m.f is always such that it opposes the change in current that created it. As a result, inductors always oppose a change in current, in the same way that a flywheel oppose a change in rotational velocity. Care should be taken not to confuse this with the resistance provided by a resistor.An inductor is characterized by its inductance, the ratio of the voltage to the rate of change of current, which has units of henries (H). Inductors have values that typically range from 1 µH (10−6H) to 1 H. Many inductors have a magnetic core made of iron or ferrite inside the coil, which serves to increase the magnetic field and thus the inductance. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electric circuits. Inductors are widely used in alternating current (AC) electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers.