CH 21 - AC Circuits and Electromagnetic Waves
... Note that Maxwell’s equations are nearly symmetric in E and B. Since there are apparently no magnetic monopoles analogous the electric charges, then we have zero on the right-hand side of the second equation and no monopole current term on the right hand side of the third equation. The term 0 0 ...
... Note that Maxwell’s equations are nearly symmetric in E and B. Since there are apparently no magnetic monopoles analogous the electric charges, then we have zero on the right-hand side of the second equation and no monopole current term on the right hand side of the third equation. The term 0 0 ...
AN1681 - How to Keep a FLYBACK Switch Mode Supply Stable with
... in different conduction modes, will change dramatically in DC and AC conditions. The stress upon the power elements they are made of will also be affected. This article explains why the vast majority of low-power FLYBACK SMPS (off-line cellular battery chargers, VCRs, etc.) operate in the discontinu ...
... in different conduction modes, will change dramatically in DC and AC conditions. The stress upon the power elements they are made of will also be affected. This article explains why the vast majority of low-power FLYBACK SMPS (off-line cellular battery chargers, VCRs, etc.) operate in the discontinu ...
Parallel circuits - Journal of Pyrotechnics
... • The total resistance always increases as more elements are added to the circuit. As a result, the total amount of current flowing always decreases. • To maintain the same current as more elements are added, greater and greater voltage will be needed from the power source. • If the wire size is suf ...
... • The total resistance always increases as more elements are added to the circuit. As a result, the total amount of current flowing always decreases. • To maintain the same current as more elements are added, greater and greater voltage will be needed from the power source. • If the wire size is suf ...
PROJEC
... An H-bridge is an electronic circuit which enables a voltage to be applied across a load in either direction. These circuits are often used to allow DC motors to run forwards and backwards. H-bridges are available as integrated circuits, or can be built from discrete components. In this project the ...
... An H-bridge is an electronic circuit which enables a voltage to be applied across a load in either direction. These circuits are often used to allow DC motors to run forwards and backwards. H-bridges are available as integrated circuits, or can be built from discrete components. In this project the ...
Triangle to Sine Conversion (Nonlinear Function Fitting)
... The figure on the left is an abbreviated derivation of the pertinent expression. A plot of the hyperbolic tangent is drawn below. Note that this derivation ...
... The figure on the left is an abbreviated derivation of the pertinent expression. A plot of the hyperbolic tangent is drawn below. Note that this derivation ...
E1 power amplifier
... High-gain voltage amplifiers are widely available for instrumentation and other applications in a single integrated circuit, usually called an 'operational amplifier'. However, commonly used types have limited output currents, about 15 mA, precluding their use in higher power applications, such as a ...
... High-gain voltage amplifiers are widely available for instrumentation and other applications in a single integrated circuit, usually called an 'operational amplifier'. However, commonly used types have limited output currents, about 15 mA, precluding their use in higher power applications, such as a ...
Multilayer Varistor Application Note
... metal oxides between two metal electrode plates (see Figure 1). These large adjacent grains form diode junctions that allow current to flow in only one direction. These “diode junctions” arrange themselves in such a way that they perform like opposing diodes in series. When a large voltage is applie ...
... metal oxides between two metal electrode plates (see Figure 1). These large adjacent grains form diode junctions that allow current to flow in only one direction. These “diode junctions” arrange themselves in such a way that they perform like opposing diodes in series. When a large voltage is applie ...
Inductors and Capacitors
... From this we see that the energy stored in a capacitor is only a function of the voltage across it. So even if the current is 0, there can be some energy in a capacitor. A capacitor is a passive element. From the expression for energy stored in a capacitor we see that (wC)-inf-> t is always > 0. Equ ...
... From this we see that the energy stored in a capacitor is only a function of the voltage across it. So even if the current is 0, there can be some energy in a capacitor. A capacitor is a passive element. From the expression for energy stored in a capacitor we see that (wC)-inf-> t is always > 0. Equ ...
Preparation of Papers in Two-Column Format for the Proceedings of
... This logic applies in general to components in series with current sources. These components only change the voltage drop across the current source. We are ready to start voltage loops. There is only one loop that avoids current sources, shown in red below. We could follow the loop in either directi ...
... This logic applies in general to components in series with current sources. These components only change the voltage drop across the current source. We are ready to start voltage loops. There is only one loop that avoids current sources, shown in red below. We could follow the loop in either directi ...
EX: Find the numerical value of v2 in the circuit below. Show all work
... This logic applies in general to components in series with current sources. These components only change the voltage drop across the current source. We are ready to start voltage loops. There is only one loop that avoids current sources, shown in red below. We could follow the loop in either directi ...
... This logic applies in general to components in series with current sources. These components only change the voltage drop across the current source. We are ready to start voltage loops. There is only one loop that avoids current sources, shown in red below. We could follow the loop in either directi ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.