Tuesday 11 March 2014

Why a 104(0.1uF) cap to be connected in parallel with DC motors when connected to a uC via any line driver?

When a DC motor runs, the commutator touches the brushes momentarily very frequently which generates a high frequency noise in motor supply. The .1uF capacitor will show a low impedance for this noise and will bypass the this noise. If we do not use this capacitor the noise will travel in DC power supply of uC(micro controller) or any IC and the uC or IC will not function properly and in case of micro controller, restart may occur.
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3 comments:

  1. dishu19 March 2014 at 07:10

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  2. dishu19 March 2014 at 07:12

    restart may occur??

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  3. Unknown26 March 2014 at 22:31

    YES reset means from the beginning. in micro controller we write coding in a particular language. unintentionally the micro controller is reset.

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