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Recent content by wells001

  1. wells001

    How to simulate chopper stabilized opamp

    How to simulate the noise and offset reduction performace of chopper stabilized opamp by HSPICE?
  2. wells001

    chopper stabilized amplifier design

    wenadinho, I meet a circuit just like your attached figure. Can you tell me how to design the parameters of the device, and what is the key point?
  3. wells001

    Who has papers about Lateral PNP in p-sub CMOS Process?

    Who has papers about Lateral PNP in p-sub CMOS Process? I want to design a low noise circuit.
  4. wells001

    How to designa two stage CMOS chopper-stabilized OP

    How to designa two stage CMOS chopper-stabilized OP? I want to use in bandgap.
  5. wells001

    Questions about a Linear Regulator

    I thought it was like a buck dc-dc, but it has not switching part.
  6. wells001

    Questions about a Linear Regulator

    Thank you! But, if D2 is a rectifier, is it necessary? In what condition is it on?
  7. wells001

    Questions about a Linear Regulator

    Thank you!
  8. wells001

    Questions about a Linear Regulator

    Sorry, it's the first time for me to post image, so I don't how to post a larger image. Can you help me?
  9. wells001

    Questions about a Linear Regulator

    This is a linear regulator for converting 48v DC to 15v DC. I have some questions: 1. What are the function of R4, R5 and R9? 2. Is the circuit consisting of D2, L1, C5 and C6 a PI filter? 3. How does feedback circuit work?
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