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What follows below is not a full description. Full descriptions are in chapters of books about electronic power supplies.
A constant current source is an electronic device which acts as a source of power whereby, however the load resistance changes - within a certain fixed range - the device is designed to monitor the output current drawn from it and will change its output voltage to keep the output current constant within a certain fixed range.
Another answer
A constant current source will provide constant current with a load if the load changes the volts will change to compensate for the constant current flowing. Which is just opposite to a constant voltage source whereby a load change will change the current but not the voltage. And that how it works.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoCurrent source can be helpful in application where you want to measure very low resistence like a wire for example. The basic idea behind this is to fix the amount of current and then measure the voltage across the wire.
Wiki User
∙ 11y ago- A current source is a power supply that generates a constant current.
- A voltage source is a power supply that generates a constant voltage.
Wiki User
∙ 10y agoBasically current sources are made from Voltage sources by adding some extra components to voltage souce.
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Is current source available in any circuit?
The question is vague.A current source is the short form of constant current source.A voltage source, on the other hand, is the short form of constant voltage source.That being so, then no, a current source is not available in any circuit.
One source of constant electric current is a?
Alah
Do you agree or disagree with your lab partner who says a battery provides not a source of constant current but a source of constant voltage?
agree
Is solar panel a constant current source?
No. A battery is a constant voltage source. Batteries are sold as having a specific voltage (1.2 volts, or 1.5 volts per cell), not a specific current.
What is internal resistant of a DC source?
An ideal voltage source has zero internal resistance so that the voltage stays constant with any load current. A practical voltage source should have less than 5% voltage drop at the rated load current.
What is the output impedance of a constant voltage source and constant current source?
The output impedance is z= V/I, the ratio of the constant voltage and the constant current source.
What ismean by current source?
A current source produces a constant current no matter the variation in voltage.
Is a battery provides not a source of constant current or a source of constant voltage?
Batteries will provide a source of constant voltage. A battery also can be used to produce an electrical current immediately upon a necessary connection.
How do you convert voltmeter to ohmmeter?
First you will need a constant current source. Do NOT connect the voltmeter to the constant current source without the resistor to be measured already connected. Do NOT use a battery, it is a voltage source. Then follow these steps to measure a resistor:connect the voltmeter across the resistor to be measuredconnect the voltmeter-resistor combination across the constant current sourceread the voltmeter and record the voltagedisconnect the voltmeter-resistor combination from the constant current sourcedisconnect the voltmeter from the resistorcalculate the resistance from the measured voltage and current from the source with Ohm's law in this form: R = V ÷ IIts much easier to just use the ohms setting on a multimeter.
Is current source available in any circuit?
The question is vague.A current source is the short form of constant current source.A voltage source, on the other hand, is the short form of constant voltage source.That being so, then no, a current source is not available in any circuit.
One source of constant electric current is a?
Alah
Do you agree or disagree with your lab partner who says a battery provides not a source of constant current but a source of constant voltage?
agree
What is a current source?
A current source is a source that we can draw current from and can regulate to control the amount of current we draw. It is kind of a "mirror" of the voltage source. Here's how it might work. We usually are interested in keeping the current constant when we use a current source (though not always). To do this takes a varying voltage source to keep that current constant when using the source with a dynamic load (a load that is changing). There will have to be a way for the source to sense current flow and compare it to the setting put in. That way the source can maintain that constant current by adjusting to the correct voltage needed to maintain it. Many battery charging applications require this technology. We want "maximum" current so we can quickly charge the battery, but we cannot "overload" the battery, so we have to be careful not to do that. A constant current source is the answer. It will supply a steady "maximum" current, and the source will (as the battery charges and the "resistance to more charge" increases) increase in voltage to keep that amount of current flowing into the battery to charge it in the shortest time. A VERY GOOD EXPLANATION and I could add that a perfect current source would have 0 (zero) input/output impedance or you could say it's would be more like "a short that provides power".
What is Difference Between Current Source and Voltage Source?
A current source varies the output voltage to maintain the desired current. A voltage source has a constant output regardless of the current draw (up to the capacity of the supply, of course).
Highly inductive load as a constant current source?
An inductor is a device that resists a change in current. The equation is di/dt = v/L. This means that inductors are current sources, and given a sufficiently large inductor, in comparision to the circuit, it is a constant current source.
Are dry cells a source of constant direct current voltage?
Yes.
Example of ideal constant-current source?
A current source ideally should be with an internal impedance of 0 zero. So even if the output is zero volts current can flow.
