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19. Power Supply & Multimeter Prof. Seewhy Lee Presents

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Agenda Connector and Cable Power Supply Voltage Measurement Current Measurement Problems

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Banana Plug

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Caiman

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Crocodile

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Alligator

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Alligator Clip

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Hewlett-Packard

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Cofounders: Hewlett & Packard

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David Packard (1912~1996)William Hewlett (1913~2001)

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HP (Office Supplies) Agilent (Elec. Equipments)

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Front Panel Rear Panel Agilent E3645A Power Supply

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Warning: No operator serviceable parts inside: refer servicing to service trained personnel. Warning: For continued fire protection, use specified ~ line fuse. GPIB (General Purpose Interfacing Bus)

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Agilent E3645A DC Power Supply Power On/Off Toggle Voltage Setting Output On/Off Output Connection

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Power Supply Current SourceVoltage Source

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Joseph F. Keithley

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Voltage Measurement V = V A - V B A B

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Current Measurement 0 = A B I A A B

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Its art rather than technique! Nice equipment is very important! Careful analysis is more important! Caution & prudence always needed! Doctor & Engineer

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1. Caiman / Alligator / Crocodile / / , , !

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3. Before Turning Power On/Off

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4. Misnomers Tester Multimeter /

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7. Coaxial Cable

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* Shielding * : : : :

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Faraday Cage

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Click!

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Bayonet( )

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Bayonet Mount

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Bayonet Neil-Concelman BNC Connector

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TNC Connector Male Female Threaded Neil-Concelman

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