To: | <amps@contesting.com> |
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Subject: | [AMPS] Blow TL922 |
From: | mike@g0mjw.freeserve.co.uk (G0MJW) |
Date: | Fri, 25 Feb 2000 11:25:09 -0000 |
The zener diode can be replaced with a series of c. 7, 1A forward-biased diodes. Such an arrangement is much more rugged than a zener. And also poor regulation - Does it really matter ? If you are doing that you might as well just use a resistor as the bias is only a few volts and it will probably still be cleaner than the driver. I suggest you use a low power zener and a transistor, or a programmable zener like the TL431 and a pass transistor. G3SEK might comment. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm |
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