Differences

This shows you the differences between two versions of the page.

--- university:courses:electronics:text:chapter-4 [30 Aug 2013 17:04] – created Doug Mercer
+++ university:courses:electronics:text:chapter-4 [30 Aug 2013 17:07] – [4.9 Operational amplifier Schmitt trigger] Doug Mercer
@@ Line 218: / Line 218: @@
 The fact that the positive feedback applied within the circuit ensures that there is effectively a higher gain and therefore the switching is faster. This is particularly useful when the input waveform may be slow. However a speed up capacitor can be applied within the Schmitt trigger circuit to increase the switching speed still further. By placing a capacitor across the positive feedback resistor R<sub>3</sub>, the gain can be increased during the changeover, making the switching even faster. This capacitor, known as a speed up capacitor may be anywhere between 10 pF and 100 pF dependent upon the circuit.
+**Return to [[university:courses:electronics:text:chapter-3|Previous Chapter]]**
+**Go to Next Chapter**
+**Return to [[university:courses:electronics:text:electronics-toc|Table of Contents]]**

Wiki