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DiscoverCircuits.com -- Hobby Corner
Last Updated on:
Tuesday, November 29, 2011 08:14 PM
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Test Circuits |
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Brownout Voltage Tester
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Most well designed line powered
products can tolerate a wide variation of AC voltages. But, some circuits
are less tolerant. The hobby circuit below can be used to test a circuit’s
ability to operate under low (brownout) AC line conditions. |
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| The electronic circuit
shown below uses a filament transformer to “buck” the normal 120vac line voltage
down to about 95 volts. A similar circuit could be used in other countries
with a 48vac transformer. Such a transformer would lower the test voltage
from 240vac to 192vac. With the components shown, the schematic has a load rating
of 250 watts. |
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Click on Drawing Below to view PDF version of Schematic |
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eMail David A.
Johnson, P.E. about this circuit |
