Greetings all
In a different thread, Dodgydave advised me "...best to use a light dimmer to alter the wattage" to reduce the power of a soldering iron.
I now want to build one because it will cost a tenth of a commercial one.
However, I thought of building a unit which could be used to control the power of the soldering iron AND the speed of my drill.
Most of the circuits I came across on the net specifically stipulate that the dimmers may NOT be used for inductive loads, only for resistive loads, like incandescent bulbs, EXCEPT if the ac motor is universal, which means it can work with ac or dc, and has brushes.
My drill only works with ac but has brushes (see attachment 1).
1. Is this a universal motor or an inductive one?
Attachments 2, 3 and 4 are dimmers which claim to work with both types of loads.
2. Is this wise or possible?
Attachment 5 shows what looks like a good resistive dimmer from Circuitstoday.
3. Why does it not have or need a choke as I have inserted?
Thanks
Max
In a different thread, Dodgydave advised me "...best to use a light dimmer to alter the wattage" to reduce the power of a soldering iron.
I now want to build one because it will cost a tenth of a commercial one.
However, I thought of building a unit which could be used to control the power of the soldering iron AND the speed of my drill.
Most of the circuits I came across on the net specifically stipulate that the dimmers may NOT be used for inductive loads, only for resistive loads, like incandescent bulbs, EXCEPT if the ac motor is universal, which means it can work with ac or dc, and has brushes.
My drill only works with ac but has brushes (see attachment 1).
1. Is this a universal motor or an inductive one?
Attachments 2, 3 and 4 are dimmers which claim to work with both types of loads.
2. Is this wise or possible?
Attachment 5 shows what looks like a good resistive dimmer from Circuitstoday.
3. Why does it not have or need a choke as I have inserted?
Thanks
Max
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