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  • Users: PWM
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  1. PWM

    equations

    how can I tell Matlab to solve an equation symbolically without giving values to the variables? For example: 2x + 5 + 6x will become 7x + 5. Thanx in advance!
  2. PWM

    Error-amp

    How does the error-amp of a switch mode power suply work? I know a lot about it already, but: - I don't know at which frequencies to place the poles and zeros; - how much should the phase shift be? - how to choose the component values? thanx again
  3. PWM

    Levelshifter or totempole?

    I saw many circuits on the internet with totempole drivers for FETs. Now I built such a totempole in a SMPS, but it doesn't work correctly. Now someone told me that a levelshifter should ALWAYS be used, even with totempole. The reason: when the mosfet is ON, the gate-drain voltage will both be...

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