Low Pulse Width Time In Schmitt Trigger Oscillator Calculator

Formula Used:

\[ t_{schmitt} = R_{schmitt} \times C_{schmitt} \times \ln\left(\frac{V_{T+}}{V_{T-}}\right) \]

Resistance of Schmitt Oscillator (R_schmitt):

Capacitance of Schmitt Oscillator (C_schmitt):

Rising Voltage of Schmitt Oscillator (V_T+):

Falling Voltage of Schmitt Oscillator (V_T-):

Low Pulse Width Time of Schmitt Oscillator:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Low Pulse Width Time in Schmitt Trigger Oscillator?

The Low Pulse Width Time of Schmitt Oscillator defines how long the input voltage must remain below the lower threshold voltage. It is a critical parameter in determining the timing characteristics of Schmitt trigger-based oscillators.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ t_{schmitt} = R_{schmitt} \times C_{schmitt} \times \ln\left(\frac{V_{T+}}{V_{T-}}\right) \]

Where:

\( t_{schmitt} \) — Low Pulse Width Time of Schmitt Oscillator (seconds)
\( R_{schmitt} \) — Resistance of Schmitt Oscillator (Ω)
\( C_{schmitt} \) — Capacitance of Schmitt Oscillator (F)
\( V_{T+} \) — Rising Voltage of Schmitt Oscillator (V)
\( V_{T-} \) — Falling Voltage of Schmitt Oscillator (V)

Explanation: The formula calculates the time duration for which the input remains below the lower threshold voltage based on the RC time constant and the voltage ratio.

3. Importance of Low Pulse Width Time Calculation

Details: Accurate calculation of low pulse width time is crucial for designing precise timing circuits, oscillators, and signal conditioning circuits using Schmitt triggers.

4. Using the Calculator

Tips: Enter resistance in ohms, capacitance in farads, and both rising and falling voltages in volts. All values must be positive and non-zero.

5. Frequently Asked Questions (FAQ)

Q1: What is a Schmitt Trigger Oscillator?
A: A Schmitt Trigger Oscillator is a type of relaxation oscillator that uses a Schmitt trigger and an RC network to generate square wave signals.

Q2: Why is the natural logarithm used in this formula?
A: The natural logarithm accounts for the exponential charging/discharging behavior of the capacitor in the RC circuit.

Q3: What are typical values for Schmitt trigger voltages?
A: Typical values depend on the specific Schmitt trigger IC, but V_T+ is usually higher than V_T- by 0.5-2V in standard implementations.

Q4: How does resistance affect the pulse width?
A: Higher resistance values increase the RC time constant, resulting in longer pulse widths.

Q5: Can this calculator be used for different Schmitt trigger ICs?
A: Yes, as long as you know the specific rising and falling threshold voltages for your particular Schmitt trigger IC.