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Buck-Boost (Switch Mode) Regulator Provides 12V from 5-35V S

2015-09-28 08:10  
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This article describes the Buck-Boost (Switch Mode) Regulator Provides 12V from 5-35V Supply (L7805ACV). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:L7805ACV.

This is positive buck-boost regulator circuit. Using this circuit, we can implement a step-down/up converter with a positive output voltage. This circuit produces an output voltage of 12 V. Here is the circuit :

Buck Boost Switch Mode Regulator Provides 12V from 5 35V Supply circuit schematic diagram

This circuit requieres input voltage between 5 V and 35V. The output voltage is given by Vo=Vin·D/(1-D).? The maximum output current is Iout=1x(1-D). The term (1-D) reduces current capability because only during the OFF phase, current flowing trough the internal power switch is delivered to the output.


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