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What is Avalanche Transistor Pulse Generator about?
This circuit generates a fast 1ns pulse with 350ps rise and fall times using an avalanche transistor. A switching regulator converts a 1.5V battery input to the 90V required for avalanche. When a capacitor charges enough, the transistor avalanches, producing a quickly rising pulse. Oscillation occurs at 200kHz. When tested on a sampling oscilloscope, rise and fall times were measured as fast as 216ps and 232ps. Careful layout is required to achieve the fast switching speeds. The complete packaged unit consi
- Author
- barbosi
- Language
- EN