power supply +20V and -20V 5A by LM338
This entry was posted on Monday, March 3rd, 2008 at 12:51 pm and is filed under Power supply, Variable Regulator.
Here is Circuit power supply +20V and -20V 5A,Use IC LM338.
Nick initially adjusted the quiescent current to 3.5A but found after listening tests that increasing this to 4A gave a noticeable improvement. Even at an Iq of 4A the amps run cool due to the substantial heatsinking (0.5degC/W for each output device and each LM338K). Variations in quiescent current and dc offset with temperature are minimal, with an Iq of 3.8A and a dc offset of less than 35mV at switch-on.
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Read More Source:
http://www.tcaas.btinternet.co.uk/jlhesl.htm
Thank you.
