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Physics Tutorial: Inductance and Transformers
Physics Tutorial: Inductance and Transformers

... Transformers allow 240V to be stepped down to convenient levels for digital electronics (only a few volts) or for other low power applications (typically 12V). Transformers step the voltage up for transmission, as mentioned above, and down for safe distribution. Without transformers, the waste of el ...
Comparison Between Vacuum Tube and Solid
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... rectangular shape called “Pulses” and can vary its “Pulse Width”. 3) Uses a 25 KHz transformer to boost up the voltage. 4) Rectifies the pulsed AC High Voltage into DC High Voltage. The High DC Voltage charges the Output Capacitor. 5) Loses energy only during “Switching” and “On” states. The overall ...
RL Circuits - Humble ISD
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... • An inductor is an electronic device that is put into a circuit to prevent rapid changes in current. • It is basically a coil of wire which uses the basic principles of electromagnetism and Lenz’s Law to store magnetic energy within the circuit for the purposes of stabilizing the current in that ci ...
Series and Parallel Circuits Computer Lab
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... You now have the raw material to create a circuit. Take a moment to look over the site and find all the different materials. To build a circuit you will need several wires, a light bulb, a voltage source, a voltmeter, and a non – contact ammeter. Play with it to see how to grab and manipulate these ...
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Chapter 18: Electric Current and Circuits
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Physics: 13. Current Electricity Conductors and Insulators
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... 1. Set up the circuit as shown and note the current (I) and potential difference (V) 2. Adjust the variable resistor (rheostat) to get a new set of values. 3. Repeat about 6 times and then plot a graph of potential difference against current. 4. The fact that we get a straight line shows that the po ...
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... coil caused by magnetic field interference. This is the “F” in LSMFT (5 causes of resistance in a path). 14. A coil ____________ with magnetism will have more potential to produce its designed voltage. 15. Secondary coil windings are wound on the __________ of the primary windings. collapse inward 1 ...
D to A Converter R2R reduction
D to A Converter R2R reduction

... VRX = (VSUPPLY/ RTOTAL) * RX VREQUIV = 5V/12k * 6k = 2.5V To cross check if this is correct we use the calculated step voltage of 0.625V per step and multiply it by the binary count 1002 or 4: 4 * 0.625V = 2.5V ...
Precision High Side Current Sense Amplifiers
Precision High Side Current Sense Amplifiers

... The LT1999 accurately measures fast switching currents in H-bridge motor controls, switching power supplies, solenoids and battery chargers. It features a –5V to 80V input common mode voltage range, 2MHz bandwidth, less than 1.5mV offset voltage and 0.5% gain error over temperature. With more than 8 ...
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Voltage-Controlled Oscillator

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Electrical ballast



An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.
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