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| Created | December 14, 2012 |
| Last modified | January 05, 2013 |
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This is a switching mode power supply which boosts the input voltage.
The square wave (which can be implemented using a 555 timer) turn the transistor on and off. When the transistor is on, voltage is applied to the inductor which "charges" it with current. When the transistor is off, the inductor transfers its charged energy into the capacitor and load (R2). Over time, the average voltage to the load is higher than the input voltage VCC. This circuit effectively turns current into voltage.
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