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Independant Current Source

An independent voltage source maintains a constant voltage between its terminals regardless of the load. It is symbolized by a battery with plus and minus terminals labeled with the voltage value. The voltage source will provide whatever current is needed to keep the voltage constant, analogous to a water tank maintaining a constant water pressure from its constant height or a motor applying constant torque to drive a water pump.

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33 views1 page

Independant Current Source

An independent voltage source maintains a constant voltage between its terminals regardless of the load. It is symbolized by a battery with plus and minus terminals labeled with the voltage value. The voltage source will provide whatever current is needed to keep the voltage constant, analogous to a water tank maintaining a constant water pressure from its constant height or a motor applying constant torque to drive a water pump.

Uploaded by

ilg1
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Independent Voltage Sources

An independent voltage source is an energy source that pushes electrons with a constant force or pressure regardless of the load presented to it. In other words, a 1 volt source will maintain 1 volt between its terminals regardless of the load. The symbol for the voltage source and its V-I curve is shown below. The voltage source symbol must be identied with its positive or negative terminal marked and a value or variable for its voltage.

voltage magnitude reference designator

10V

+ -

V1

5 10 15

independent voltage source

The independent voltage source will source whatever current necessary to maintain a constant terminal voltage.
The water analogy of the voltage source shown previously is shown again below. The constant height of the water tank and its volume provides the constant (voltage) pressure. Another water analogy is of a constant torque motor driving a water pump. The constant torque motor applies the same force to the pump, yielding a constant water pressure.
water tank
constant torque motor

pump

reservoir

water pump

+
Voltage source analogies

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