Threshold detector with hysteresis

Threshold Detector With Hysteresis

Threshold detector with hysteresis

to get instant updates about 'Threshold Detector With Hysteresis' on your MyPage. Meet other similar minded people. Its Free!


All Updates

300px|thumb|right|Circuit diagram for threshold detector with hysteresis

The threshold detector with hysteresis, very similar to the zero crossing threshold detector, is an electronic circuit consisting of an operational amplifier and a series of resistors that provide hysteresis. Like other detectors, this device functions as a voltage switch, but with an important difference. The state of the detector output is not directly affected by input voltage, but instead by the voltage drop across its input terminals (here, referred to as Va). From Kirchhoff's Current Law, this value depends both on Vin and the output voltage of the threshold detector itself, both multiplied by a resistor ratio.

<math>V_a=V_ + V_</math>

Unlike the zero crossing detector, the detector with hysteresis does not switch when Vin is zero, rather the output becomes Vsat+ when Va becomes positive and Vsat- when Va becomes negative. Further examination of the Va equation reveals that Vin can exceed zero (positive or negative) by a certain magnitude before the output of the detector is caused to switch. By adjusting the value of R1, the magnitude of Vin that will cause the detector to switch can be increased or decreased. This property often proves very useful in various applications, including signal generators.

See also

Read More

No feeds found

wait Posting your question. Please wait!...

No updates available.
No messages found
Tell your friends >
about this page
 Create a new Page
for companies, colleges, celebrities or anything you like.Get updates on MyPage.
Create a new Page
 Find your friends
  Find friends on MyPage from