xp052505
Cholerny Spammer
Joined: 03 Aug 2010
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 Posted: Wed 0:56, 30 Mar 2011 Post subject: Schmitt trigger circuit and improve _1110 |
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Schmitt trigger circuit and its improvement
A 1, c. 10 , so Vo-V0H. Therefore,[link widoczny dla zalogowanych], the conversion level should satisfy the condition V + A 1/4v +1 / 8vT +, so the VT + a 8V -2 which can be obtained hysteresis voltage △ T-VT + VT eleven of a 8V6-4V2. Visible , △ T and has nothing to do , but on and. ,, size , respectively, within a certain range can be adjusted , adjustment, can be changed before and after the edge pulse . Thus, high precision pulse width along the front of the occasion, available in Figure 4 to implement the new Schmitt trigger . Figure 4 . Respectively, through 47kf2 potentiometer to adjust the potentiometer connected to the 15V power supply , respectively , and with the low-frequency sine wave signal generator output signal as 7.3, the frequency of 2kHz or so, the power of a V 10V. With a dual trace oscilloscope and 7. J. Side observation waveform , the output is square wave . Adjust the supply voltage , square wave does not change along the front and rear , improving the quality of the output pulse . Adjustment potentiometer can be changed. , the size of the rectangle will change along the wave front . Necessary to adjust the output to the pulse width , pulse width to accommodate the high precision of the occasion.
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