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A technique in systems design in which an initial result is fed back into the system to enhance its future operation. This could apply to anything from an analog amplifier to the process of getting software running on a computer.
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How bootstrap capacitor voltage is added to source voltage?
You require a bootstrap capacitor because you are trying to drive an N-channel Mosfet on the high side, and therefore you will need a voltage between Gate and Source of the mosfet which is greater than … You turn off the mosfet and the mosfet source node voltage goes back down to Gnd and the bootstrap capacitor is charged again whatever charge it lost.
Cycle repeats. …