Published:2011/9/9 7:51:00 Author:Vicky | Keyword: complementary tube pulse circuit | From:SeekIC
(picture1)
Complementary tube bistable state circuit is shown in picture1(a). When the power is on, if no triggering signal works, the two tubes stop working and the state is in a stable state because the collector current is extramely small, and the end voltage of RC1, and Rc2 (bias current provided to the two tubes) is also very small.
When the trigger pulse is working, suppose that BG1 becomes amplified from static, and leads to the process of avalanche-type positive feedback. Soon the two tubes become saturate, and are in another stable state. Capacitance C1 is speed-up capacitor. From picture1(b), we can see that uc1 goes down to zero sharply from Ec, while Uc2 zooms up to Ec from zero.
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