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  1. Replies
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    Closed: Re: Bridge diode thermal problem

    Looks interesting, even though back dated issue!
    Dont you mean number of component can be minimize !
    What you have said "gang diode" action is not clear here.
  2. Replies
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    Closed: Re: Bridge diode thermal problem

    Not sure whats the benifit to use such design. For a full cycle conduction, how is your signal appears to load. Without load could you measure output voltage . During circuit analysis does LC filter...
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    Closed: Re: Bridge diode thermal problem

    The connector J1 comes from a Power Transformer's (220V,3~5A,60Hz) secondary output. It is low voltage/high current application. Dont you think adding more component dissipates power when facing DC !
  4. Replies
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    Closed: Bridge diode thermal problem

    Hi there!

    Hope this post find you well.
    Like my other post, you might think its silly!

    I am talking about a basic bridge recrifier made of...
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    Closed: Re: Lets take a look on a linear amplifier

    Then my application wont work with it?
    Take a look....
    155725

    Dont mind Guru, you seems like an indian by name and Chiness by birth!;-)
  6. Replies
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    Closed: Re: Lets take a look on a linear amplifier

    Did you see "electrotech" posted datasheet well?
    what is the limit of such analog/PWM input frequency?
    Not high compared than my one??
  7. Replies
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    Closed: Re: Lets take a look on a linear amplifier

    Nice !
    Interesting to see how was your input? Its analog or PWM ?
    My measurement range is 300V RMS.

    Kindly suggest a same range classD ic.
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    Closed: Re: Lets take a look on a linear amplifier

    Thank you for your lesson!
    Dont you think for this kind of low frequency 60Hz transformer case ClassD type is useless?
    As you have said " voltage facts" ruther than low current!
  9. Replies
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    Closed: Re: Lets take a look on a linear amplifier

    Nice feedback indeed.
    Could you suggest me an article for this issue?
  10. Replies
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    Closed: Re: Lets take a look on a linear amplifier

    Really low ! But need a range for idea.
    If you read all information you could see,
    360v/0.332 A and 180v/0.166A outputs are from PT.
    4.125v/6A output is available from CT.

    Then why dont we...
  11. Replies
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    Closed: Re: Lets take a look on a linear amplifier

    People also curious about" core saturation" effect.
    "A product with a Class-D audio power amplifier (APA) driving an output transformer with inadequate
    low-frequency performance may shut down when...
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    Closed: Re: Lets take a look on a linear amplifier

    Just think the primary inputs should be the power rating out of class D amplifier. Consider the circuit protection for " high frequency impedance and oscillation for using transformer".
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    Closed: Re: Lets take a look on a linear amplifier

    Yes. well said. Depending on switching topology may we need more.
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    Closed: Re: Lets take a look on a linear amplifier

    Once again I am blessed to find you here!
    May be that technology need more effort to make sequencial PWM for firing the gates!
    Here is some way to overcome "heating" and crossover distrortion!:lol:
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    Closed: Re: Lets take a look on a linear amplifier

    Mr. Frankrose,

    Thank you to reply here.
    Yes, people said "its not Class D, it might be Class AB. Its may be 200W.
    Nothing Class D about it, but you can of course feed it with a square wave...
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    Closed: Lets take a look on a linear amplifier

    Hi there,

    Hope my post find you well.
    I like to get attention the knowledgeble person in this post !
    So, kindly avoid this post if you wont have experience.

    I wanna post a circuit that may be...
  17. Closed: Re: Looking for a suitable DC -DC buck conveter topology

    In sense of input and output its true, but clarify it from your mind!
  18. Closed: Re: Looking for a suitable DC -DC buck conveter topology

    I do appreciate your analysis and effort you did here!

    Yeap! This circuit is nonsense indeed.
    Because of ...

    1. No freewhiling path/ diodes.
    2. Energy storing device alignment is wrong for...
  19. Closed: Re: Looking for a suitable DC -DC buck conveter topology

    Yeap!
    Well said.
    Now depending on the winding/ turns cant you tell what what would be the converter type?
  20. Closed: Re: Looking for a suitable DC -DC buck conveter topology

    Mr. FvM,

    Take a look on this transformer ,
    Could you guess something ?
    155359
    For your full understanding, isolation means output and input can work without effecting each other.

    The people...
  21. Closed: Re: Looking for a suitable DC -DC buck conveter topology

    Hello Sir schmitt trigger !
    I found you always helpful.

    Yeap, little study is necessary.

    155354


    Tnasformer is must may be !
  22. Closed: Re: Looking for a suitable DC -DC buck conveter topology

    Nice to get your feedback.

    Can not we raise " Phase" in DC-DC buck action.
    Because of 2 switch? Multiphase but not interleaing?

    Looking at this circuit it seems like a 2 conventional buck...
  23. Closed: Looking for a suitable DC -DC buck conveter topology

    Hello there,

    Anser this post who knows Power Electronics well.

    Take a look my buck conveter in attachment.
    People may called it "Dropper'

    It has following properties,

    1. Input is 120 to...
  24. Closed: Why factory RESET comes during memory bootloading ? HW or SW issue ?

    Hi there,

    I am working a WIFI module as follows,...
  25. Closed: Re: Using LM324 and OP07 for controlling voltage

    Thank you very much Sir! Let me follow what you wanted to say. I have made it on PADS schematics, but for seek of simplicity and analysis, I have draw it in Multisim.





    Nice feedback, lets...
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