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LM317 电阻计算
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这个计算器是用来找出LM317输出您需要的电压所需调整的电阻值，典型的R1值是220欧姆或240欧姆，但也可以改变为其他值，譬如150或470欧姆。然后输入R2的值并点“计算”按钮，就能立即算出LM317的输出电压值
提示：LM317的输入电压至少必须大于输出电压1.5V电压。
注意(三“最”提醒)：
最大输出电流：1.5A 最高工作温度：125°C 最高输入输出电压差：40V
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Calculate LM317 Resistor Values
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This calculator is used to find the value of the voltage adjustment resistor required to set the output of an LM317 to a specified level. Typically R1 is 220 ohms or 240 ohms, but it could be some other value such as 150 or 470 ohms. Select a value for R2 and hit the Calculate button. The LM317 output value is reported in volts.
Remember that the input voltage to the LM317 must be at least 1.5v greater than the output voltage.
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