Chin. J. Semicond. > 2006, Volume 27 > Issue 8 > 1484-1489

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Reducing the Slope Compensation Effect on the Load Capacity of DC-DC Converters

Wang Hongyi, Lai Xinquan and Li Yushan

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Abstract: In the design of current-mode PWM DC-DC converters,the slope compensation method widely used to prevent sub-harmonic oscillation can significantly weaken the load capacity under a high duty cycle.The method presented in this paper reduces the slope compensation effect on the maximum inductor current.The inductor current can reach a high value even if the duty cycle is high.The load capacity is improved significantly.In the implementation,a novel multiplex comparator is used to realize the functions of three conventional comparators and some logic circuits.The power dissipation is as low as that of a conventional comparator.The circuit is concise and simple to implement.

Key words: DC-DC converter slope compensation loading ability multiplex comparator

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    Received: 20 August 2015 Revised: Online: Published: 01 August 2006

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      Wang Hongyi, Lai Xinquan, Li Yushan. Reducing the Slope Compensation Effect on the Load Capacity of DC-DC Converters[J]. Journal of Semiconductors, 2006, In Press. Wang H Y, Lai X Q, Li Y S. Reducing the Slope Compensation Effect on the Load Capacity of DC-DC Converters[J]. Chin. J. Semicond., 2006, 27(8): 1484.Export: BibTex EndNote
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      Wang Hongyi, Lai Xinquan, Li Yushan. Reducing the Slope Compensation Effect on the Load Capacity of DC-DC Converters[J]. Journal of Semiconductors, 2006, In Press.

      Wang H Y, Lai X Q, Li Y S. Reducing the Slope Compensation Effect on the Load Capacity of DC-DC Converters[J]. Chin. J. Semicond., 2006, 27(8): 1484.
      Export: BibTex EndNote

      Reducing the Slope Compensation Effect on the Load Capacity of DC-DC Converters

      • Received Date: 2015-08-20

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