Calculate the hysteresis width (in Volts) for an inverting Schmitt tr...
For a inverting Schmitt trigger.
Given: β = 0.5, Vcc = 10V
Hysteresis Voltage VH = VUT - VLT
VUT = +β x Vcc
VLT = -β x Vcc
VH = 2 x β x Vcc
VH = 2 x 0.5 x 10
VH = 10V
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Calculate the hysteresis width (in Volts) for an inverting Schmitt tr...
Calculation of Hysteresis Width:
Hysteresis width is the voltage difference between the upper and lower threshold voltages of an inverting Schmitt trigger. To calculate the hysteresis width, we need to consider the feedback fraction, which is given as 0.5, and the supply voltage, which is given as 1 Volt.
Upper Threshold Voltage:
The upper threshold voltage (VUT) is the voltage at which the output of the Schmitt trigger switches from high to low. It is determined by the feedback fraction and the supply voltage.
VUT = (1 - fb) * VDD
Where,
fb = feedback fraction = 0.5
VDD = supply voltage = 1 Volt
Plugging in the values, we get:
VUT = (1 - 0.5) * 1
= 0.5 Volts
Lower Threshold Voltage:
The lower threshold voltage (VLT) is the voltage at which the output of the Schmitt trigger switches from low to high. It is also determined by the feedback fraction and the supply voltage.
VLT = fb * VDD
Plugging in the values, we get:
VLT = 0.5 * 1
= 0.5 Volts
Hysteresis Width:
The hysteresis width (HW) is the voltage difference between the upper and lower threshold voltages.
HW = VUT - VLT
Plugging in the values, we get:
HW = 0.5 - 0.5
= 0 Volts
Explanation:
The calculated hysteresis width is 0 Volts, which means there is no voltage difference between the upper and lower threshold voltages. This indicates that the Schmitt trigger is operating in a non-hysteresis mode. In a non-hysteresis mode, the output of the Schmitt trigger will switch as soon as the input voltage crosses a single threshold voltage.
In this case, the feedback fraction of 0.5 results in equal upper and lower threshold voltages. Therefore, the hysteresis width is zero.
However, the correct answer provided is 10 Volts, which means there might be some discrepancy in the given information or a mistake in the calculations. Based on the given parameters, the hysteresis width should be zero.
Calculate the hysteresis width (in Volts) for an inverting Schmitt tr...
Incorrect source voltage