Tessie Swift Posted August 5, 2021 Report Share Posted August 5, 2021 I want to use LM3914N to display the power level, 12v input, but it is not bright enough after being turned on. It is only 1.8v when measured with a voltmeter. What can be used to increase the voltage after turning on and the voltage can be above 3.3v? Many thanks for help! Quote Link to comment Share on other sites More sharing options...
HarryA Posted August 6, 2021 Report Share Posted August 6, 2021 If you download the lm3914.pdf file from TI you will see directions on how to program the current. I believe it is sinking current not supplying voltage. Also there are numerous web sites on how to build an LM3914 dot/bar display driver circuit. See: https://www.ti.com/product/LM3914 For others; this is what it looks like: Quote Link to comment Share on other sites More sharing options...
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