Introduction

Simple Circuit Concepts

Transmission lines

Faraday's law

Near and far fields

Spurious coupling mechanisms

- Direct conduction
- Capacitive coupling -problem
- Capacitive coupling -fixing
- Inductive coupling-problem
- Inductive coupling -fixing by twisted
- Inductive coupling -fixing by coax
- Electromagnetic pickup

- Examples
- Safety & star grounding
- Gnd loop resistance, inductance
- Low frequency behavior
- High frequency behavior
- Troubleshooting
- Methods for removing

Transmission lines: a result distributed capacitance and inductance

In electronic theory, circuit elements are assumed to be connected by "wires" which are idealized as conductors having no resistance, no capacitance, and no inductance. In real systems this will not be true if distributed capacitance and inductance are important. If this is so, the two-conductor signal and return system should be treated as a transmission line. Depending on geometry, the distributed capacitance between signal and return wires is typically 50-100 picofarads (pF) per meter while distributed inductance is typically a few hundred nanohenries (nH) per meter.

In electronic theory, circuit elements are assumed to be connected by "wires" which are idealized as conductors having no resistance, no capacitance, and no inductance. In real systems this will not be true if distributed capacitance and inductance are important. If this is so, the two-conductor signal and return system should be treated as a transmission line. Depending on geometry, the distributed capacitance between signal and return wires is typically 50-100 picofarads (pF) per meter while distributed inductance is typically a few hundred nanohenries (nH) per meter.

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Troubleshoot ground loops with ease

and without disconnecting anything!

and without disconnecting anything!

US Patent 7,791,353 B2