The Triangular Wave Deposit Control System uses a current source as
the drive circuit to the pipe solenoid. A current source will provide the design water
conditioning signal to any impedance load so long as the internal power supply has the
required capacity. A voltage source generator will maintain the same voltage so long as
the power supply has the capacity, but the conditioning signal may become weaker.
Here is an illustration.
Imagine that you and a friend are riding a bicycle built for two.
Another person is riding with you without a partner on his bike. When the road is flat,
you are able to pedal the bicycle easily by yourself, and your friend just enjoys the
ride. The other person also is able to pedal easily.
However, when you come to a hill, your friend senses that you are
working harder to pedal, and he starts to pedal, too. Together you are able to keep up
your pace. The other person is not so fortunate, because he does not have a friend to help
him pedal. He begins to fall behind.
You and your friend are like a current source generator. Together
you are able to respond to the hill and keep the pace. The other person is like a voltage
source generator, and he is not able to give the extra energy needed to keep pace while
going up the hill.
WHY IS HAVING A CURRENT SOURCE IMPORTANT?