DC-Circuits-II-RC
... time constant is entirely determined by C, R1, and R2. •It might be easier to think about the circuit as if C were discharging; Imagine that the capacitor is charged, and that the battery is replaced by a wire (which also has no resistance or capacitance). Since the battery supplies a constant vol ...
... time constant is entirely determined by C, R1, and R2. •It might be easier to think about the circuit as if C were discharging; Imagine that the capacitor is charged, and that the battery is replaced by a wire (which also has no resistance or capacitance). Since the battery supplies a constant vol ...
here
... and linear relationship between B and H follows. • In fact, the B-H curve for ferromagnetic materials used for transformer core is nonlinear and has multiple values. • As H increases, the core become saturated i.e. the magnetic flux density B increase at a much lower rate. • This effect is NOT inclu ...
... and linear relationship between B and H follows. • In fact, the B-H curve for ferromagnetic materials used for transformer core is nonlinear and has multiple values. • As H increases, the core become saturated i.e. the magnetic flux density B increase at a much lower rate. • This effect is NOT inclu ...
Analysis of energy-saving structures of electric machines for
... In the paper, alternative technologies of electric machines for domestic appliances were discussed. Nowadays, domestic appliances are used on a mass scale. In most households, there are domestic appliances where electric machines are used. Commutator motors are generally used in domestic appliances ...
... In the paper, alternative technologies of electric machines for domestic appliances were discussed. Nowadays, domestic appliances are used on a mass scale. In most households, there are domestic appliances where electric machines are used. Commutator motors are generally used in domestic appliances ...
Chapter 7 - 3 phase Induction Motor
... The induction machine is the most rugged and the most widely used machine in industry. Like dc machine, the induction machine has a stator and a rotor mounted on bearings and separated from the stator by an air gap. However, in the induction machine both stator winding and rotor winding carry altern ...
... The induction machine is the most rugged and the most widely used machine in industry. Like dc machine, the induction machine has a stator and a rotor mounted on bearings and separated from the stator by an air gap. However, in the induction machine both stator winding and rotor winding carry altern ...
1. General presentation
... 4. Internal construction and industrial process Capacitor units shall be of the "all-film" design using 2 or 3 sheets of Hazy Polypropylene Film as the solid dielectric material. Electrodes shall be made of folded aluminium foils. In order to increase the service continuity and improve reliability o ...
... 4. Internal construction and industrial process Capacitor units shall be of the "all-film" design using 2 or 3 sheets of Hazy Polypropylene Film as the solid dielectric material. Electrodes shall be made of folded aluminium foils. In order to increase the service continuity and improve reliability o ...
Microfabrication is about to revolutionize the way reed switches are
... on each switching cycle. External solenoid coils were used to drive the switches. The resulting Weibull reliability plot is shown in Figure 6. Percentage failure is plotted on the yaxis, and millions of switching cycles on the x-axis. The Weibull slope was 1.66, indicating that the switches tended t ...
... on each switching cycle. External solenoid coils were used to drive the switches. The resulting Weibull reliability plot is shown in Figure 6. Percentage failure is plotted on the yaxis, and millions of switching cycles on the x-axis. The Weibull slope was 1.66, indicating that the switches tended t ...
Radiant Energy and Over-Unity - Panacea
... from permanent magnets alone. Magnetism is a flux, like any flux it can be tapped. The most promising are magnetic latching and modulation. ...
... from permanent magnets alone. Magnetism is a flux, like any flux it can be tapped. The most promising are magnetic latching and modulation. ...
Effective Estimation of Induction Motor Field Efficiency Based on On-site Measurements
... The results of estimated efficiency of the 100 hp motor using the proposed technique are summarized in Table 3 and Fig. 3. At one-quarter load, the measured efficiencies obtained from IEEE 112 Method B and IEC 34-2 are 93.2 % and 92.9 % respectively, while the estimated efficiency obtained from the ...
... The results of estimated efficiency of the 100 hp motor using the proposed technique are summarized in Table 3 and Fig. 3. At one-quarter load, the measured efficiencies obtained from IEEE 112 Method B and IEC 34-2 are 93.2 % and 92.9 % respectively, while the estimated efficiency obtained from the ...
Section B2: The Ideal Diode
... circuit symbol for a diode is shown to the right and illustrates its two-terminal nature. What this means is that there are two places to connect the diode to the external circuit, the anode and cathode. We’ll get to this more in a couple minutes but, for normal operating conditions, the anode is mo ...
... circuit symbol for a diode is shown to the right and illustrates its two-terminal nature. What this means is that there are two places to connect the diode to the external circuit, the anode and cathode. We’ll get to this more in a couple minutes but, for normal operating conditions, the anode is mo ...
how diodes work - Wiki - Joe Knows Electronics
... Another attribute is that the intrinsic layer is rather thick, meaning that it takes quite a while for the injected carriers to escape after the forward bias is removed. This means that, while for low frequencies a PIN diode functions just as a general-purpose diode, at high frequencies the intrinsi ...
... Another attribute is that the intrinsic layer is rather thick, meaning that it takes quite a while for the injected carriers to escape after the forward bias is removed. This means that, while for low frequencies a PIN diode functions just as a general-purpose diode, at high frequencies the intrinsi ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.