Function Gen says 1V, Scope says 2V. Which one's right?
Click to subscribe! ► [ Ссылка ] ◄
The function generator is set to have a 1 V output, but the oscilloscope measures a 2 Volt signal. Why? When set to 50 ohm mode, the function generator actually outputs double the specified input voltage. It does this because it expects to see a 50 ohm load on the output, creating a 50/50 voltage divider circuit.
Questions or comments? Ask me on Twitter:
@DanielBogdanoff [ Ссылка ]
Learn more about using oscilloscopes:
[ Ссылка ]
Check out the EEs Talk Tech podcast:
[ Ссылка ]_
The digital storage oscilloscope we used: [ Ссылка ]
#oscilloscope #oscilloscopes #electronics #electricalengineering #impedance #impedancematching #50ohm #50ohmimpedance #highimpedance #outputimpedance #functiongenerator
Don't Fall Into This Output Impedance Trap!
Теги
oscilloscopeoscilloscopeswaveformvoltagecurrenttutorialkeysightelectrical engineeringcomputer engineeringelectronicsdigital storage oscilloscopemixed signal oscilloscopeimpedancefunction generatoroutput impedanceimpedance matchingfunction generator outputfunction generator output impedancefunction generator and oscilloscopefunction generator tutorialimpedance mismatch