Linear Technology Corp. has introduced the LT3724, a single-chip, -40 ºC to 125 ºC-rated dc/dc controller for use in step-down, step-up, inverting or SEPIC circuits with up to 100 W of output power.
This circuit takes advantage of the voltage drop across bridge rectifier diodes to produce a 5-position variable voltage supply to a DC fan or other small DC motor. It is not as efficient as a ...
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