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A & B Circuit Regulators - A Circuit and B circuit Regulator Descriptions

A Circuit and B circuit Regulator Descriptions
Describes the And B differences
each
A & B Circuit Regulators
No stock in NZ
No stock in NZ

'A'Circuit Regulator

When you have an "A" circuit type voltage regulator this means battery voltage is sent  directly to one brush  while the voltage regulator controls the field strength by varying the ground to the other brush.
It does not matter which wire from the slipring/brush goes to the regulator field connection* and which has the battery voltage connected, you can swap them around.

A great way to remember is is for AFTER.

* In an external regulator application, in an internal regulator application this is usually restricted by the physical connections of the regulator

Some brush holders will restrict the polarity due to physical mountings and connections

 'B' Circuit Regulator

When you have a "B" circuit type voltage regulator this means one of the brushes is connected to ground permanently. The voltage regulator controls the positive voltage to the other brush varying the field strength.
It does not matter which wire from the slipring/brush goes to the regulator field connection* and which has the ground connected, you can swap them around.

A great way to remember is B is for BEFORE.

* In an external regulator application, in an internal regulator application this is usually restricted by the physical connections of the regulator

Some brush holders will restrict the polarity due to physical mountings and connections

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