Published:2009/6/28 21:30:00 Author:May
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Published:2009/6/28 21:30:00 Author:May
This simple circuit gives a positive and negative supply from a single transformer winding and one full-wave bridge. Two zener diodes in series provide the voltage division and their centerpoint is grounded. (The filter capacitor must not be grounded via its case). (View)
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Published:2009/6/28 21:28:00 Author:May
The simple zener shunt in A may not handle sufficient current if the zener available is of low wattage. A power transistor will do most of the work for the zener as shown in B. Once the zener starts conducting, a bias voltage develops across the resistor (330 Ω to 1K), turning on the transistor. The output voltage is 0.7 V greater than the zener voltage. (View)
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Published:2009/6/28 21:26:00 Author:May
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Published:2009/6/28 21:26:00 Author:May
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Published:2009/6/28 21:23:00 Author:May
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Published:2009/6/28 21:23:00 Author:May
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Published:2011/7/31 22:02:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 22:03:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:48:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:39:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:48:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:40:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:41:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:42:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:42:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:43:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:46:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 20:44:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/31 22:01:00 Author:Ecco | Keyword: Computer motherboard
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