Baluns
... 4:1 transmission line current balun • Only transmission line is needed to construct this current balun. • The two lengths of transmission line that comprise the balun need to have a characteristic impedance of ~ 100 ohms. RG-62 (Z = 95 ohms) works very well. • The length of the two sections of 100 ...
... 4:1 transmission line current balun • Only transmission line is needed to construct this current balun. • The two lengths of transmission line that comprise the balun need to have a characteristic impedance of ~ 100 ohms. RG-62 (Z = 95 ohms) works very well. • The length of the two sections of 100 ...
Lecture 4: Interconnect RC
... very important part of total delay. Wire delay comes from two sources. One is the intrinsic, speed-of-light delay. The second is the lossy nature of on-chip wires; because the resistance of such wires is very high, the wires form RC circuits. Speed of light delay is proportional to the length of the ...
... very important part of total delay. Wire delay comes from two sources. One is the intrinsic, speed-of-light delay. The second is the lossy nature of on-chip wires; because the resistance of such wires is very high, the wires form RC circuits. Speed of light delay is proportional to the length of the ...
Technical Notes
... to illustrate the operation of a capacitor filtered rectifier circuit. The capacitor is charged to the peak line voltage. The capacitor discharges as current is supplied to the load. Line current flows to recharge the capacitor only while the peak of the line voltage waveform is greater than the cap ...
... to illustrate the operation of a capacitor filtered rectifier circuit. The capacitor is charged to the peak line voltage. The capacitor discharges as current is supplied to the load. Line current flows to recharge the capacitor only while the peak of the line voltage waveform is greater than the cap ...
Tesla Coil - Science Enterprises LLC
... = 16.66 x 3000 volt vibrator secondary With the current at maximum resonance, a high voltage, high frequency of one million impulses are produced at the ball of the secondary. The Tesla transformer does not function on turn ratio windings. It functions instead on the ratio of the primary capacitance ...
... = 16.66 x 3000 volt vibrator secondary With the current at maximum resonance, a high voltage, high frequency of one million impulses are produced at the ball of the secondary. The Tesla transformer does not function on turn ratio windings. It functions instead on the ratio of the primary capacitance ...
the pulse current pattern generated by developing fucoid eggs
... back and forth between two positions in front of the rhizoid (as illustrated in Fig. 5), spending 11 s for each measurement. This was done a number of times and the ratios of the current densities in the two positions were averaged resulting in one point in Fig. 5. We did this for three pairs of pos ...
... back and forth between two positions in front of the rhizoid (as illustrated in Fig. 5), spending 11 s for each measurement. This was done a number of times and the ratios of the current densities in the two positions were averaged resulting in one point in Fig. 5. We did this for three pairs of pos ...
fundamentals of ic assembly - Department of Electrical, Computer
... Fully testable, plastic model, quad-flat-pack Leads on all four sides of the surface mountable package ...
... Fully testable, plastic model, quad-flat-pack Leads on all four sides of the surface mountable package ...
Chapter 3: Motionless Pulsed Systems
... material, will effectively move, vibrate, and appear to shift position when the magnetisation of the soft magnetic material is modulated by ancillary means (much like the sun, viewed while underwater, appears to move when the water is agitated). By this mechanism, the motion required for generation ...
... material, will effectively move, vibrate, and appear to shift position when the magnetisation of the soft magnetic material is modulated by ancillary means (much like the sun, viewed while underwater, appears to move when the water is agitated). By this mechanism, the motion required for generation ...
BJT Fundamentals Lecture Slides -- NEW!
... • This will imply that IB << I2 so that I1 = I2 to good approximation in the base voltage divider. Then the base current doesn’t disturb the voltage divider action, and the Q-point will be approximately independent of base voltage divider current. • Also, VEQ is designed to be large enough that sm ...
... • This will imply that IB << I2 so that I1 = I2 to good approximation in the base voltage divider. Then the base current doesn’t disturb the voltage divider action, and the Q-point will be approximately independent of base voltage divider current. • Also, VEQ is designed to be large enough that sm ...
Spin current and rectification in one-dimensional electronic systems Bernd Braunecker,
... time of the electron travel across the potential barrier. uncertainty comes from the uncertainty of the energy of the backscattered particle. If the barrier amplitude U共x兲 ⬍ EF and the barrier occupies a region of size aU ⬃ 1 / kF, then travel ⬃ 1 / kFv ⬃ ប / EF, where v ⬃ បkF / m is the electron ...
... time of the electron travel across the potential barrier. uncertainty comes from the uncertainty of the energy of the backscattered particle. If the barrier amplitude U共x兲 ⬍ EF and the barrier occupies a region of size aU ⬃ 1 / kF, then travel ⬃ 1 / kFv ⬃ ប / EF, where v ⬃ បkF / m is the electron ...
Practical exercises for learning to construct NMR/MRI probe circuits
... Using a slightly larger diameter loop provides sufficient coupling to allow detection of the resonance. Stray capacitance can also be important. A helical resonator appears in Fig. 2(c). This circuit is a coil sitting on top of a ground plane (thin copper tape or sheet will work); the circuit is clos ...
... Using a slightly larger diameter loop provides sufficient coupling to allow detection of the resonance. Stray capacitance can also be important. A helical resonator appears in Fig. 2(c). This circuit is a coil sitting on top of a ground plane (thin copper tape or sheet will work); the circuit is clos ...
PWMSP_delia2
... Current carrying capacity (Iz) Current carrying capacity IZ is defined as the maximum current which can be carried continuously by a conductor under specified conditions without its steady-state temperature exceeding a specified value (Tmax). the maximum temperatures allowed are: Tmax=70 °C for cabl ...
... Current carrying capacity (Iz) Current carrying capacity IZ is defined as the maximum current which can be carried continuously by a conductor under specified conditions without its steady-state temperature exceeding a specified value (Tmax). the maximum temperatures allowed are: Tmax=70 °C for cabl ...
Coil on Plug: The Wired Differences
... the electronics in the coil and the coil windings as a load device utilize chassis ...
... the electronics in the coil and the coil windings as a load device utilize chassis ...
Caution - leakage currents!
... Leakage currents in filters > In an ideal 3-phase power network with sinusoidal voltages, the sum of all these currents is zero. > In practice, however, there is a continuous leakage current to ground due to strong distortion in the grid voltage. This is also present even if the machine is not runn ...
... Leakage currents in filters > In an ideal 3-phase power network with sinusoidal voltages, the sum of all these currents is zero. > In practice, however, there is a continuous leakage current to ground due to strong distortion in the grid voltage. This is also present even if the machine is not runn ...
Lab 17 - College of San Mateo
... 1. Check to see that all three buttons of the galvanometer are up. If any appears to be in the depressed position, rotate it to release it. 2. Test the galvanometer as follows: Connect the positive (red) terminal of the power supply to the left terminal of the galvanometer. (Left is defined as you l ...
... 1. Check to see that all three buttons of the galvanometer are up. If any appears to be in the depressed position, rotate it to release it. 2. Test the galvanometer as follows: Connect the positive (red) terminal of the power supply to the left terminal of the galvanometer. (Left is defined as you l ...
An Anisotropic PML For Use With Biaxial Media
... where apml = xx =xx is an arbitrary complex constant. It is evident that the permittivity tensor for medium 2 is biaxial, while its permeability tensor is uniaxial, and that the tensors are of a similar form to other PML’s [3]. Any medium 2 satisfying (11) and (12) will act as a PML for biaxial or ...
... where apml = xx =xx is an arbitrary complex constant. It is evident that the permittivity tensor for medium 2 is biaxial, while its permeability tensor is uniaxial, and that the tensors are of a similar form to other PML’s [3]. Any medium 2 satisfying (11) and (12) will act as a PML for biaxial or ...
Lectures. Direct current machi
... Explain the construction of a DC generator. we know that a DC generator uses electromagnetic induction to convert mechanical energy into electrical energy. it is frequently used in houses and officers but do you know how it is constructed. let's try to understand this. a DC generator consists of a m ...
... Explain the construction of a DC generator. we know that a DC generator uses electromagnetic induction to convert mechanical energy into electrical energy. it is frequently used in houses and officers but do you know how it is constructed. let's try to understand this. a DC generator consists of a m ...
print version - pdf - Atlantic Coast S Gaugers
... Closed contacts. Skycrafters electronic surplus in Orlando Florida has these for about $3 each. Ted Zanders has them mounted on his button boards and the Tidewater division has also started to use them on their units. They require a recessed hole so the micro switch can fit behind the push button. T ...
... Closed contacts. Skycrafters electronic surplus in Orlando Florida has these for about $3 each. Ted Zanders has them mounted on his button boards and the Tidewater division has also started to use them on their units. They require a recessed hole so the micro switch can fit behind the push button. T ...
www.tonydude.net - sdsu
... first immersed in a magnetic field, and following that, an electric current is sent through the wire. This causes the wire to turn because of the opposite poles that are being created and the subsequent forces. As this wire turns, it creates energy in the form of a current, or volts. This energy is ...
... first immersed in a magnetic field, and following that, an electric current is sent through the wire. This causes the wire to turn because of the opposite poles that are being created and the subsequent forces. As this wire turns, it creates energy in the form of a current, or volts. This energy is ...
Skin effect
Skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductor such that the current density is largest near the surface of the conductor, and decreases with greater depths in the conductor. The electric current flows mainly at the ""skin"" of the conductor, between the outer surface and a level called the skin depth. The skin effect causes the effective resistance of the conductor to increase at higher frequencies where the skin depth is smaller, thus reducing the effective cross-section of the conductor. The skin effect is due to opposing eddy currents induced by the changing magnetic field resulting from the alternating current. At 60 Hz in copper, the skin depth is about 8.5 mm. At high frequencies the skin depth becomes much smaller. Increased AC resistance due to the skin effect can be mitigated by using specially woven litz wire. Because the interior of a large conductor carries so little of the current, tubular conductors such as pipe can be used to save weight and cost.