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Thread: First attempt of TD Class on Leco Amplifier Module

  1. #11
    diysmps Member
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    Quote Originally Posted by fitzroy View Post
    class td sunfire amplifier whats the different to me the same
    below schematic of lab gruppen fp14000
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  2. #12
    diysmps Member
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    Quote Originally Posted by fitzroy View Post
    below schematic of lab gruppen fp14000
    down converter circuit
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  3. #13
    diysmps Member
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    Cool

    Quote Originally Posted by fitzroy View Post
    down converter circuit
    in going through the white paper by bob carver
    years ago on the switching down converter i searched for the schematic for the sunfire amplifier then i heard about class td same down converter circuit little changes which use a switching power supply a blind man can see both circuits are the same one uses hcpl2400 and the other hcpl2411 same ic who found this design first bob carver or lab gruppen?the heart of the class td and the sunfire amp is the switching down converter circuit or the buck boost circuit.without it it just an ordinary class a or a class ab amplifier. which will need massive heat sink and lot lot more output transistors. who is this design acreditted to??????????

  4. #14
    diysmps Member
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    Quote Originally Posted by fitzroy View Post
    in going through the white paper by bob carver
    years ago on the switching down converter i searched for the schematic for the sunfire amplifier then i heard about class td same down converter circuit little changes which use a switching power supply a blind man can see both circuits are the same one uses hcpl2400 and the other hcpl2611 same ic who found this design first bob carver or lab gruppen?the heart of the class td and the sunfire amp is the switching down converter circuit or the buck boost circuit.without it it just an ordinary class a or a class ab amplifier. which will need massive heat sink and lot lot more output transistors. who is this design acreditted to??????????
    white paper
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    Last edited by fitzroy; 03-07-2018 at 01:02 PM.

  5. #15
    any one have you fpq 10000 smps PWM drive schematic ???

  6. #16
    diysmps Member
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    Quote Originally Posted by khalsa View Post
    any one have you fpq 10000 smps PWM drive schematic ???
    only got this page
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  7. #17
    need this schematic
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