Electrical Testing at Elevated Frequency of Stator Cores and Exciter Circuits
... evaluating generator stator cores as well as for pilot exciters and the laminated armature of exciter rotors. The flux test is used to measure the condition of the stator core insulation and thus to detect possible local insulation damage. Insulation failure can result in local hot spots between s ...
... evaluating generator stator cores as well as for pilot exciters and the laminated armature of exciter rotors. The flux test is used to measure the condition of the stator core insulation and thus to detect possible local insulation damage. Insulation failure can result in local hot spots between s ...
Page 1 - Madeley High School
... wire hangs from a cotton thread. When the switch is closed, the wire kicks forward. Identify the effect which is being demonstrated. ...
... wire hangs from a cotton thread. When the switch is closed, the wire kicks forward. Identify the effect which is being demonstrated. ...
Ripple: Refers to a low or medium frequency repeating oscillation on
... vary through the switching cycle and has very little ripple. Since C1 cannot carry a DC current then the current in L1 is equal to Io the DC output current. As explained in lecture 1 the opening and closing of the switch creates a square wave voltage across the diode. The output voltage Vo is the fi ...
... vary through the switching cycle and has very little ripple. Since C1 cannot carry a DC current then the current in L1 is equal to Io the DC output current. As explained in lecture 1 the opening and closing of the switch creates a square wave voltage across the diode. The output voltage Vo is the fi ...
Transformers - Hingham Schools
... producing (inducing) a voltage by passing a wire through a magnetic field. Generator ...
... producing (inducing) a voltage by passing a wire through a magnetic field. Generator ...
MAX8752 TFT LCD Step-Up DC-DC Converter General Description Features
... The MAX8752 is a highly efficient, step-up power supply designed for TFT-LCD panels. The typical circuit shown in Figure 1 operates from an input voltage as low as 1.8V, and produces a MAIN output of 10V at 220mA from 2.5V input while supporting discrete diode-capacitor charge pumps that produce -9V ...
... The MAX8752 is a highly efficient, step-up power supply designed for TFT-LCD panels. The typical circuit shown in Figure 1 operates from an input voltage as low as 1.8V, and produces a MAIN output of 10V at 220mA from 2.5V input while supporting discrete diode-capacitor charge pumps that produce -9V ...
Lab Exercise 6: Induction, Transformer, and Motor
... To fully understand how induction occurs in coils and be able to explain the different phenomenas that will be observed in this lab, the following set of basic concepts, that describe the relationship between the magnetic field and charge, are summarized below: • A stationary charge does not generat ...
... To fully understand how induction occurs in coils and be able to explain the different phenomenas that will be observed in this lab, the following set of basic concepts, that describe the relationship between the magnetic field and charge, are summarized below: • A stationary charge does not generat ...
Magnetic field of a bar magnet
... Using the diagram on the right, and representing the direction of the field with the first finger, and the direction of the current with the second finger, through Fleming’s left hand rule, we can see that the wire moves upwards (the direction of the thumb). What needs to be altered for the wire to ...
... Using the diagram on the right, and representing the direction of the field with the first finger, and the direction of the current with the second finger, through Fleming’s left hand rule, we can see that the wire moves upwards (the direction of the thumb). What needs to be altered for the wire to ...
MPM3805 - Monolithic Power System
... The MPM3805 is a step-down module converter with built-in power MOSFETs and inductor. The module’s integrated inductor simplifies the power system design and provides easy, efficient use. The DC-DC module comes in a small surfacemount QFN-12 (2.5mmx3.0mmx0.9mm) package and achieves 0.6A continuous o ...
... The MPM3805 is a step-down module converter with built-in power MOSFETs and inductor. The module’s integrated inductor simplifies the power system design and provides easy, efficient use. The DC-DC module comes in a small surfacemount QFN-12 (2.5mmx3.0mmx0.9mm) package and achieves 0.6A continuous o ...
Transporting Atoms Using a Magnetic Coil Transfer System
... able to tune the interaction strengths between these atoms. This is called Feshbach resonance and is the essential tool for controlling the interactions between atoms [1].We work with strongly interacting 40K atoms. In this strongly interacting regime, the two body scattering length diverges and a p ...
... able to tune the interaction strengths between these atoms. This is called Feshbach resonance and is the essential tool for controlling the interactions between atoms [1].We work with strongly interacting 40K atoms. In this strongly interacting regime, the two body scattering length diverges and a p ...
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.