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9V Power Supply Using LM7809 Voltage Regulator IC
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12v to 9v converter - Best 5 circuits - SM Tech
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dc dc converter - Need a buck circuit to go from 48V down to 12V-9V less than 30mA (or half the supply input for a regulator) - Electrical Engineering Stack Exchange
12v to 9v converter - Best 5 circuits - SM Tech
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12v to 9v converter - Best 5 circuits - SM Tech
12V to 9V Converter Circuit Using LM7809 Regulator IC
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