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Old 13th September 2004, 09:55 AM   #1
polsol is offline polsol  South Africa
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Default High Voltage/Current Regulators

Any suggestions for alternative voltage regulators to the NS LM 338K?
The 338 is a pretty expensive chip when compared to something like the LM317. Is there no way of using say a BJT in parallel to a 317 to boost the current and voltage of the later?
Any other suggestions for a regulator to be used in a home made PSU with say a 300VA 35-0-35 transformer?
The PSU is to be used for testing power amps.
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Old 13th September 2004, 11:18 AM   #2
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Exactly what you ask for is in the 317 data sheet.

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Old 13th September 2004, 12:43 PM   #3
polsol is offline polsol  South Africa
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Thanks, I have an old data sheet but will download the newer one. My data sheet suggest using parallel 317's with an opamp servo but would prefer to use one 317 with a single BJT.
Will rdownload and ead tonight when I get home.

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