1 / 17

Week 14b/ Lecture 25 Dec. 1, 2005

Week 14b/ Lecture 25 Dec. 1, 2005. Example Applications Class D Audio Amplifier (phasors, opamp, MOSFET) 2. Atomic Force Microscope. Traditional Linear Amplifier. www.irf.com/product-info/audio/classdtutorial.pdf. current. Example: Vcc = 25V, load = 1 ohms, IXYS 24N50.

sally
Download Presentation

Week 14b/ Lecture 25 Dec. 1, 2005

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Week 14b/ Lecture 25 Dec. 1, 2005 Example Applications • Class D Audio Amplifier • (phasors, opamp, MOSFET) 2. Atomic Force Microscope Prof. Fearing

  2. Traditional Linear Amplifier www.irf.com/product-info/audio/classdtutorial.pdf Prof. Fearing

  3. current Example: Vcc = 25V, load = 1 ohms, IXYS 24N50 Prof. Fearing

  4. Prof. Fearing

  5. How Pulse Width Modulation Works http://www.extron.com/technology/archive.asp?id=ts122001 Prof. Fearing

  6. How a Triangle Output Oscillator Works (relaxation oscillator) http://users.ece.gatech.edu/~mleach/ece4435/f01/ClassD2.pdf V1 vo -V1 vo vT Prof. Fearing

  7. Output Stage +50V Vin VL -50V |H(w)| w Prof. Fearing

  8. Whole Class D amplifier Prof. Fearing

  9. Integrator and Input Circuitry feedback Prof. Fearing

  10. Quantize and Gate Drive Prof. Fearing

  11. Output Section Gate Driver Prof. Fearing

  12. Class D Amplifier Summary- Review Concepts push-pull output (load line) (compare to CMOS output) diode limiter op amp integrator 1 bit quantizer (comparator) protection logic push-pull output (load line) (compare to CMOS output) low pass filter Prof. Fearing

  13. 2. Example Micromechatronic System: Atomic Force Microscope http://stm2.nrl.navy.mil/how-afm/how-afm.html Prof. Fearing

  14. Prof. Fearing

  15. http://stm2.nrl.navy.mil/how-afm/how-afm.html Prof. Fearing

  16. Example Application: Atomic Force Microscopy/Data Storage Target density: 1 terabit/sq. in. http://www.zurich.ibm.com/st/storage/millipede.html Prof. Fearing

  17. Example Application: Atomic Force Microscopy/Data Storage Target density: 1 terabit/sq. in. thermal actuation/readout http://www.zurich.ibm.com/st/storage/millipede.html Prof. Fearing

More Related