digital power supply

digital power supply

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When the power is switched on, IC2 resets itself, and hence the output at pins 6, 11, 14, and 12 is equivalent to binary zero, i.e. ‘0000’. The corresponding DC output of the circuit is minimum (1.25V). As count-up switch S1 is pressed, the binary count of IC2 increases and the output starts increasing too. At the highest count output of 1111, the output voltage is 15.19V (assuming the in-circuit resistance of preset VR2 as zero). Preset VR2 can be used for trimming the output voltage as desired. To decrease the output voltage within the range of 1.25V to 15.2V, count-down switch S2 is to be depressed.

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1 Title: digital power supply
2 Upload by: psu
3 Upload date: May 12, 2014
4 Image link:
5 Location: 2014/05/digital-power-supply.png
6 Width: 932 px
7 Height: 932 px

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