CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System...
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Transcript of CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System...
![Page 1: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/1.jpg)
CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY
Daniele AgneseMSICT – RF System On Chip 2006/’07
![Page 2: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/2.jpg)
Summary
General idea Technology comparison (CMOS,
GaAsFET) Power amplifiers topology
Class B Class AB Class D
Project description Simulations/Results Conclusion
![Page 3: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/3.jpg)
General idea
ADS Power amplifiers tutorial Transistor’s model Circuit adaptation Simulations change
![Page 4: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/4.jpg)
Technology comparison
GaAsFET 0.4 μm CMOS
Vth
-2.5 V
0.5 V
VDS - IDS
![Page 5: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/5.jpg)
Power amplifier - Class B
Circuit
Crossover distortion:
50% of cycle conducting
![Page 6: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/6.jpg)
Power amplifier - Class AB
Circuit
![Page 7: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/7.jpg)
Power amplifier - Class D
Circuit
![Page 8: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/8.jpg)
Project description
Power supply Working point (Bias ports) Transistor’s parameters Power input signal Load adaptation
![Page 9: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/9.jpg)
Simulations/Results
Class B – 1/2
50%
T=1/850 MHz = 1,2 ns
Linear region: Vds < Vgs - Vth
![Page 10: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/10.jpg)
Simulations/Results
Class B – 2/2
PAE = (Pload – Pin) / Psupply
![Page 11: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/11.jpg)
Simulations/Results
Class AB – 1/2
![Page 12: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/12.jpg)
Simulations/Results
Class AB – 2/2
![Page 13: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/13.jpg)
Simulations/Results
Class D – 1/2
![Page 14: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/14.jpg)
Simulations/Results
Class D – 2/2
![Page 15: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/15.jpg)
Conclusion
Improvements: Optimize transistors width Efficiency Matching network Reduce current leakage
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Any questions?
Doubts?
or comments?
![Page 17: CLASS B, AB AND D RF POWER AMPLIFIERS IN 0,40 UM CMOS TECHNOLOGY Daniele Agnese MSICT – RF System On Chip 2006/’07.](https://reader036.fdocuments.net/reader036/viewer/2022062321/56649f275503460f94c3ea65/html5/thumbnails/17.jpg)
Thank you a lot for your attention!