Electronics Bridging Course

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Lecture 1

• Electronics Bridging Course
• Fall Semester 2003

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1. Vectors Coordinate Systems2. Ohms Law,
Joules Law, Kirchoffs Voltage Law (KVL).

• Energy Sources Current Voltage
• Waveforms DC AC concepts
• What is Voltage?
• What is Current?
• Circuit Elements
• Passive
• Active
• Functional Blocks
• Resistance Ohms Law

• Examples of Ohms Law
• Power Dissipation by a Resistor
• Joules Law
• Resistor AC Source
• Kirchoffs Voltage Law (KVL)
• Worked Examples

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Voltage Waveforms I

• Three common types of voltage waveform
• DC or constant value voltage.
• Step voltage what happens when a DC power
  supply is turned on.
• Clock or digital voltage waveform which is
  typical of a signal found in a PC or embedded
  system.

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Voltage Waveforms II
Real Waveforms are usually more complex The
exponential waveforms shown in this slide are
typical of circuits which have capacitance or
inductance in addition to resistance. Capacitors
can be used to store energy or to filter
signals Inductors are used to build power
supplies and generate RF signals.
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Voltage Waveforms III
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Definition of Voltage
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Definition of Current
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Statement of Ohms Law
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Linear Relationship Between V, I and R
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Joules Law, Energy Power
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(1)
(2)
The work per unit charge is equal to the stored
energy which in an Electronic circuit is the
Electrical Voltage.
The charge flow per unit time is equivalent to
the current.
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(3)
(4)
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Recall that Ohms Law applies to AC as well as DC
currents and voltages.
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(i)
Anti-
(ii)
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(iii)
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(iv)
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(v)
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