17 votes

How can prevent the source voltage from dropping when using a 555 timer

The root problem is not external inductance, it is an internal design flaw. The original bipolar 555 design is notorious for output stage cross-conduction. This is a condition where both output ...
AnalogKid's user avatar
  • 18.3k
7 votes
Accepted

How can prevent the source voltage from dropping when using a 555 timer

The problem is most likely the lack of a power supply decoupling capacitor. When using a breadboard to prototype analog circuits I always put a 10uF capacitor on the supply rail.
earl's user avatar
  • 1,105
1 vote

Increasing power of a standalone circuit board

At 7.83 Hz, a small magnetic dipole, the coil you see on this card, is extremely inefficient. The superpowers usually use 10s of km of overhead line together with a ground return to make an antenna to ...
Neil_UK's user avatar
  • 162k
1 vote

Calculate total harmonic distortion

\$V_{1,rms} = 10^{\frac{dBv}{20}} mV\$ Substitute this value to THD equation. \$THD = \frac{\sqrt{V_{2,rms}^2+V_{3,rms}^2+V_{4,rms}^2+V_{5,rms}^2+...}}{V_{1,rms}} \$ \$THD = \frac{\sqrt{{(10^{\frac{...
Hasalanka Nagahawaththa's user avatar

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