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Coil calculation for LED drivers
The excel coil and sense resistor calculation sheet.
This is a tool to balance your LED-driver circuit, and to estimate component values. The tool describes (a bit simplified) how the wave from of the current over the diodes will look like for different number of diodes, type of coil and current sensing.
Play with this tool and you will get a sense how to design your specific circuit.
A remark:
This tool does not give correct values in extreme cases when the supply voltage is close to the sum of LED diode voltages. All calculations have to be followed up with real test design and measurement.
Current Revision:
060630.1
File Type: How It Works
File Size: 182.0 KB
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