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21st November 2005, 05:57 PM
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#1 |
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diyAudio Member
Join Date: Mar 2004
Location: Karmøy in Norway
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Powersupply for Aleph P 1.7
I will make this powersupply for my Aleph P 1.7:
http://www.kk-pcb.com/p17-pwr.gif I have read many posts but I don't understand the point of the NTC. Can any tell me what's the point with the NTC-resistor?
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Roger |
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21st November 2005, 06:20 PM
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#2 |
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The one and only
Join Date: Mar 2001
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The thermistor is used to connect the circuit signal ground to the
chassis and AC Earth. The thermistor provides some resistance to avoid ground loops, but conducts well enough for safety, and in the event of high current, it reduces its impedance as it heats, so that the fuse will blow first. |
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