Alternating Current RLC Circuits
... 1. Derive a relationship between the voltage amplitudes Vs , VR , VC , and VL for the RLC circuit. Hint: how is Vs related to the impedance? 2. A series RLC circuit is driven at 500 Hz by a sine wave generator. It has parameters R = 5 kΩ, L = 2 H, and C = 2 µF. What is the impedance of the circuit? ...
... 1. Derive a relationship between the voltage amplitudes Vs , VR , VC , and VL for the RLC circuit. Hint: how is Vs related to the impedance? 2. A series RLC circuit is driven at 500 Hz by a sine wave generator. It has parameters R = 5 kΩ, L = 2 H, and C = 2 µF. What is the impedance of the circuit? ...
the Note
... Comparison of the using alternating current compared to direct current: 1. Batteries and cells are the main source of direct current. These are too expensive to provide large amounts of current. 2. Direct current cannot be transformed. Even when using a DC generator, transformers are less effective ...
... Comparison of the using alternating current compared to direct current: 1. Batteries and cells are the main source of direct current. These are too expensive to provide large amounts of current. 2. Direct current cannot be transformed. Even when using a DC generator, transformers are less effective ...
MAX774 EV Kit MAX774 Evaluation Kit _______________General Description ____________________________Features
... 5. Refer to the sections Evaluating the MAX775 and MAX776 and Other Output Voltages to modify the board for different output voltages. ...
... 5. Refer to the sections Evaluating the MAX775 and MAX776 and Other Output Voltages to modify the board for different output voltages. ...
MAX742 Switch-Mode Regulator with +5V to ±12V or ±15V Dual Output _______________General Description
... The MAX742 DC-DC converter is a controller for dual-output power supplies in the 3W to 60W range. Relying on simple two-terminal inductors rather than transformers, the MAX742 regulates both outputs independently to within ±4% over all conditions of line voltage, temperature, and load current. The M ...
... The MAX742 DC-DC converter is a controller for dual-output power supplies in the 3W to 60W range. Relying on simple two-terminal inductors rather than transformers, the MAX742 regulates both outputs independently to within ±4% over all conditions of line voltage, temperature, and load current. The M ...
Homework 7
... Since the phase of the complex impedance of the resistor is zero, the phase of the voltage across the resistor agrees with the phase of the current. In the figure, one tic corresponds to 1V The complex voltage across the inductor can be found by multiplying the complex current (through the inductor) ...
... Since the phase of the complex impedance of the resistor is zero, the phase of the voltage across the resistor agrees with the phase of the current. In the figure, one tic corresponds to 1V The complex voltage across the inductor can be found by multiplying the complex current (through the inductor) ...
Massachusetts Institute of Technology Department of Electrical
... Losses in electric machines arise from conduction and magnetic hysteresis. Conduction losses are attributed to straight forward transport conduction and to eddy currents. Transport losses are relatively easy to calculate so we will not pay them much attention. Eddy currents are more interesting and ...
... Losses in electric machines arise from conduction and magnetic hysteresis. Conduction losses are attributed to straight forward transport conduction and to eddy currents. Transport losses are relatively easy to calculate so we will not pay them much attention. Eddy currents are more interesting 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.