  ### Author Topic: EEVblog 1399 - Electronics Fundamentals: Voltage Dividers  (Read 183 times)

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#### EEVblog

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• Country:  ##### EEVblog 1399 - Electronics Fundamentals: Voltage Dividers
« on: Yesterday at 01:06:26 am »
Fundamentals video. Voltage dividers, series and parallel resistors, current dividers, a revisit of Norton and Thevenin's theorems, rules of thumbs, and a trap for young players experiment on circuit loading.

00:00 - Intoduction to voltage dividers
01:33 - Uses of voltage dividers
04:27 - Rules of thumb
06:55 - Calculations
08:57 - Current dividers
10:56 - Let's revisit Thevenin & Nortons Theorems
17:29 - Experimental trap for young players

#### Brumby

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• Country:  ##### Re: EEVblog 1399 - Electronics Fundamentals: Voltage Dividers
« Reply #1 on: Yesterday at 02:38:13 am »
I prefer to remember the parallel resistor formula this way:
$$\frac{1}{Rt} = \frac{1}{R1} + \frac{1}{R2} + \frac{1}{R3} + \frac{1}{R4} + ...$$
It is algebraically identical to the way Dave presented it, but I find it clearer - and it follows a similar pattern as the series resistor formula:
$${Rt} = {R1} + {R2} + {R3} + {R4} + ...$$
« Last Edit: Yesterday at 02:42:23 am by Brumby »

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