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It is desired to interface a 300V battery to 400V dc-bus to supply 10.pdf

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pooranmalsaini1968

It is desired to interface a 300V battery to 400V dc-bus to supply 10A using a dc-dc converter. Two possible approaches, using boost and boost and buck-boost are to be evaluated operating at the same switching frequency. Consider inductor on-resistance of 0.5ohms and neglect ALL other losses. Which converter is better for this application? Solution One fundamental difference between buck-boost regulators of any topology and the boost regulator is that the buck-boosts never connect the input power supply directly to the output. The boost regulator connect VIN to VO(across the inductor and switch/diode) during a portion of their switching cycles, and this direct connection gives them better efficiency. In general, a buck-boost regulator of a certain output power will be larger and less efficient than a boost regulator of equal output power. In our case we need a current of 10A and 400V output from an inputr of 300V. For simple application as these boost regulator is preferred..

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It is desired to interface a 300V battery to 400V dc-bus to supply 10A using a dc-dc converter. Two possible approaches, using boost and boost and buck-boost are to be evaluated operating at the same switching frequency. Consider inductor on-resistance of 0.5ohms and neglect ALL other losses. Which converter is better for this application? Solution One fundamental difference between buck-boost regulators of any topology and the boost regulator is that the buck-boosts never connect the input power supply directly to the output. The boost regulator connect VIN to VO(across the inductor and switch/diode) during a portion of their switching cycles, and this direct connection gives them better efficiency. In general, a buck-boost regulator of a certain output power will be larger and less efficient than a boost regulator of equal output power. In our case we need a current of 10A and 400V output from an inputr of 300V. For simple application as these boost regulator is preferred.

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  • 1. It is desired to interface a 300V battery to 400V dc-bus to supply 10A using a dc-dc converter. Two possible approaches, using boost and boost and buck-boost are to be evaluated operating at the same switching frequency. Consider inductor on-resistance of 0.5ohms and neglect ALL other losses. Which converter is better for this application? Solution One fundamental difference between buck-boost regulators of any topology and the boost regulator is that the buck-boosts never connect the input power supply directly to the output. The boost regulator connect VIN to VO(across the inductor and switch/diode) during a portion of their switching cycles, and this direct connection gives them better efficiency. In general, a buck-boost regulator of a certain output power will be larger and less efficient than a boost regulator of equal output power. In our case we need a current of 10A and 400V output from an inputr of 300V. For simple application as these boost regulator is preferred.