Stationary three end stabilizer output voltage adjustable circuit

Published:2011/3/30 2:18:00 Author:Jessie | Keyword: three end stabilizer, output voltage adjustable | From:SeekIC

R1 is220Ω, R2 is 680Ω, they aremainly used to adjust output voltage. Output voltage Uo≈Uxx(1+R2/R1), this circuit can realizeoutput voltage continuous adjustable in voltage range of 5～12V. Experiments prove: (1) R1is afixed resistance, change its value can obtained continuous adjustable output voltage, output voltage is equal to Uxx(1 + R2 / R1); (2) The supreme output voltage is limited by stabilizer's maximum input voltage and minimum input/output voltage, so this circuit's maximum outputis 12V; (3) Withinrange of the voltage regulator, the regulator precision can reach ±0.03.



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