ECE 207 Lecture Notes - Lecture 1: Semiconductor Device, Voltage Spike, Waveshaper
16 Mar 2016
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Page 1 of 6 - nov 2 3, 2 0 1 0. Allows current only to ow in one direction. A two terminal semiconductor device: nonlinear i-v behavior. If you start with an ac waveform and to power some device, you probably need dc current, diodes make this conversion possible. Analogous to water pouring into the washing machine and the valve closes and the pipe shutters, similarly we have a large di/dt, so a large voltage spike (v = l * di/dt) Page 2 of 6 - nov 2 3, 2 0 1 0. Conductors (allow current to ow: silver, copper, etc, wires), insulators (stop current from owing, rubber, glass, te on) want to "dope" something to provide better conduction. Type 5 elements donate extra electrons to the silicon lattice. Note: there is also an extra proton in p to allow this system to be electrically neutral. Page 3 of 6 - nov 2 3, 2 0 1 0.
