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LT1249 - Power Factor Controller

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... speed is doubled, the voltage doubles. If the field strength is increased by 20%, the voltage also increases by 20%. Although separate excitation requires a separate dc power source, it is useful in cases where a generator must respond quickly and precisely to an external control source, or when the ...
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... Capacitance is another form of energy storage, kind of the opposite of inductance, because a capacitor transfers a change in current, but will not allow a steady flow to pass through. Capacitance is measured in Farads, named after Michael Faraday. In most circuits, a farad is much too large to be pr ...
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Current source



A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.
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