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Results tagged with buck-boost
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user 270534
A non-isolated DC-DC converter topology
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Sensing Resistor in Buck-Boost controllers
In the LT8390, there are two sensing resistors. The one connected to LSN/LSP is called RSENSE(Buck), and the one connected to ISP/ISN is called RSENSE(BOOST). To illustrate this more clearly, I've pro …
- 534
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Switch Selection in Buck-Boost Controller Designs
I have reviewed several buck-boost controller designs, including the LT8390 nd I am puzzled by the selection of different switches for the buck and boost sections. For instance, on page 27, the circui …
- 534
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votes
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answer
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FET selection and quantity for buck-boost converter design
I am working on designing a buck-boost converter where the input voltage is 24 V regulated, and the output voltage ranges from 12 to 48 V with a current rating of 5 A. The design should also allow for …
- 534
1
vote
1
answer
70
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Peak current-mode controller
I am studying a peak current-mode controller, and here is the schematic without slope compensation:
Before introducing RSENSE to the design, I understood that if feedback voltage increases, it is com …
- 534
1
vote
1
answer
88
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Using Buck-Boost as LED driver
I am trying to use a buck-boost controller like LT8390 as a LED driver. This controller can act as a current controller if the current through sensing resistor connected to (ISP/ISN) can be adjusted. …
- 534
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votes
1
answer
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Troubleshooting Voltage Sensing Issues in Buck-Boost Chip Simulations
I performed a simulation on a buck-boost chip (LT8390). I understand that the sensing resistor placed between LSP and LSN is supposed to sense the differential voltage. This voltage is then amplified …
- 534