Four Types of SeriesParallel Circuits

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Four Types of Series-Parallel Circuits

• Bank Circuit
• Reduces to a simple series circuit.
• Resistors that are banked have the same voltage
  drop.
• The total current is divided in each bank.

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Types of Series-Parallel Circuits -2

• String Circuit
• Reduces to a simple parallel circuit.
• Resistors that are stringed together have the
  same current flowing through them.
• Voltage is divided in each string.

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Types of Series-Parallel Circuits -3

• Ladder Network
• Networks divide current and voltage from the
  source.
• Commonly used in Analog to Digital conversion.
• Branch current add up to each the total current
  in the circuit.

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Types of Series-Parallel Circuits -4

• Bridge circuit
• Used to measure high and low unknown resistances.
• Kelvin bridges measure LOW resistances and
  Wheatstone bridges measure HIGH resistances.
• A balanced bridge has 0 volts on the voltmeter.
• Bridge circuit are the most difficult of the
  complex circuits to solve.

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Solving Bank Circuits

• Reduce each bank using the parallel resistance
  rule.
• Re-draw circuit (simple series circuit) using the
  resistance in each bank.
• Solve the circuit for voltage drops.
• Transfer voltage drops to each bank and find the
  branch currents.

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Solving String circuits

• Find the total resistance in each string using
  the series resistance rules.
• Re-draw circuit(simple parallel) using the total
  resistance in each string.
• Solve for the branch currents, transfer to string
  circuit.
• Solve for voltage drops in each string.

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Solving Ladder Circuits