Quieting a matress pump/air pump?
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Re: Quieting a matress pump/air pump?
I have encountered this way of reducing power (using a diode) in hair dryers. Induction motors will not work because of the DC component of the single-lead rectified current, but commutator (brushed) motors will work and will not be damaged. The air pumps have brushed motors, because only they can reach high speeds.Comment
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Re: Quieting a matress pump/air pump?
I have encountered this way of reducing power (using a diode) in hair dryers. Induction motors will not work because of the DC component of the single-lead rectified current, but commutator (brushed) motors will work and will not be damaged. The air pumps have brushed motors, because only they can reach high speeds.Comment
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Re: Quieting a matress pump/air pump?
Up until about the 1990s, the rectified mains was used by almost every television in the world. The supply companies didn't like it, but there was nothing they could do.
Much nicer would be to use a lamp dimmer (for an old fashioned filament lamp), provided the dimmer has a sufficient power rating. It will give a variable power to the pump, an advantage.🎈📌💥 🐕 🐖Comment
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Re: Quieting a matress pump/air pump?
Up until about the 1990s, the rectified mains was used by almost every television in the world. The supply companies didn't like it, but there was nothing they could do.
Much nicer would be to use a lamp dimmer (for an old fashioned filament lamp), provided the dimmer has a sufficient power rating. It will give a variable power to the pump, an advantage.
It was a full wave recitifer, so it would take current from the both +VE and -VE parts of the mains cycle and thus have no signifcant DC component.Comment
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Re: Quieting a matress pump/air pump?
What is penalized in Spain is the reactive energy that comes from motors and other coils and that force to use capacitors to compensate it. Although this only affects industries. In homes this is not penalized either.
In any case it is a method that works for practical purposes and regardless of whether it is well or badly seen in the face of the electric company, nothing happens to use it for a while ...Comment
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