Digitally Controlled Low-EMI DC-DC Converter with Programmable Output Voltage
| Autor: | Jui-Chi Wu, 吳瑞騏 |
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| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 This paper proposes a digitally controlled low-EMI DC-DC converter with programmable output voltage, which includes programmable digital ΣΔ voltage reference generator and complete circuits of digital control. Concept of resistance multiplier is first introduced in this paper. Random Pulse Position Modulation (RPPM), system control circuit, and dead time optimization control which is accomplished by our improved version of Area-Efficient DPWM and Hybrid DPWM are also introduced in this work. By the technique mentioned above, the area, power consumption, transient response, efficiency, and EMI are thoroughly improved. This work is designed and manufactured in TSMC 0.18um 1P6M 1.8V CMOS process. The architecture is verified and measured by FPGA platform to prove that with RPPM technique, the overall 18dB of noise suppression is achieved. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
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