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The cascode circuit
This fortnight's exposition of Design Ideas kicks off with another application of the cascode circuit. An earlier Design Idea used a cascode-connected MOSFET in a boost regulator, while this one proposes that a "JFET cascode boosts current-source performance."
In its vacuum-tube version, the cascode circuit consists of two triodes ... (more) Details... more...
High-power LED targets portable apps
Cree broadens its XLamp high-power LED family with the XR-C LED for portable and general illumination applications. Details... more...