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Add trimmable current limit to dc/dc supply

This entry was posted on Thursday, December 20th, 2007 at 9:19 am and is filed under power supply. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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You can add a simple, two-transistor circuit to a standard, step-down dc/dc converter to provide an adjustable limit for the output current (Figure 1). You can apply this method to most step-down converters that provide access to the feedback node.

Read Source : http://www.edn.com/archives/1997/080197/16di_03.htm