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PMP21112: PMP21112

Part Number: PMP21112
Other Parts Discussed in Thread: TAS3251, , PMP9774, PMP11769

Hello.

When i'm using the TAS3251 in combination with the PMP21112 Boost Converter, which Signal is connected to the PWM-tracking-Input of the PMP21112 Eval Board?

  • Hello Mr. Landgraf,

    I can't see the TAS3251 directly generating the PWM signal to control the output voltage of the boost converter;
    this will need some additional circuitry. A peak detection of the input AF envelope might be used here to modulate
    the output - PMP9774 shows such an approach.

    PMP11769 shows a solution w/ dual boost plus 2x TAS3251, but there is no AF envelope tracking implemented.

    Best regards, Bernd Geck