Youtor
Measuring Output Impedance
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=HRlSZ2hJdTE
In this video I follow up on a viewer’s comment that was posted on my “Impedance Matching” video (link below). • • Impedance Matching • The comment asked to demonstrate how you would go about measuring the Output Impedance of a laptop’s headphone jack. • Using a standard Multimeter, a resistor and a bit of ohms law, I demonstrate how this is achievable. • If you are uncertain about what impedance is, then you may find it useful to watch my “Impedance Explained” video here:- • • Impedance Explained. • I also make reference to Voltage Divider circuits, which were previously explained in my “What Are Voltage Dividers” video here:- • • What Are Voltage Divider Circuits? • For 3.5mm TRS Audio Jack breakout adaptor used in this video:- • 🔗https://amzn.to/3SUQyzQ • I also highly recommend the UNI-T UT61E Multimeter used in this video:- • 🔗https://amzn.to/49y6xt5 • Topic Covered in this video:- • ---------------------------------------------- • Measuring Output Impedance • Impedance Matching • Ohms Law • Output Impedance • Input Impedance • Maximising output power • Multimeter and Multimeter Bandwidth. • ⏱️Timeline • ------------------- • 00:00:00 – Introduction • 00:00:29 – PKAE Theme Intro • 00:00:38 – Measuring Example Earphone Impedance • 00:01:39 – Dummy Load Resistor • 00:02:25 – Measure Audio Output RMS Voltage (UNLOADED) • 00:04:06 – Measure Audio Output RMS Voltage (LOADED) • 00:04:53 – Circuit Diagram Calculation Method • 00:08:09 – Impedance Matching Graph (Spreadsheet) • 🎶Intro Music from #inaudio :- https://inaudio.org/ • Track = OddVision-HYPER POP
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