schmitt trigger

  1. K

    Current Limiting with Schmitt Trigger Circuit Design

    i want to design a circuit that limits the current range to provide protection against high current. I want to use a Schmitt trigger in this design. How can I do this? For example, I want to provide protection between 2 amperes and 15 amperes. When the current falls below 2 A, the circuit should...
  2. G

    Zener Diodes in series as Voltage Regulators

    I’m attempting to confirm my approach to this project circuit. I’m wondering if the 2 halves of the circuit (as shown) would work well to drive the Load, or even work together well at all. (It’s been a while since I was designing circuits (30+ years) and I’m a bit rusty.) I’ve done a...
  3. S

    Purpose of cascaded schmitt trigger in Hall sensor

    Hi, this is the functional block diagram of a hall sensor IC. Can anyone please explain what is the purpose of these schmitt trigger followed by another trigger? Is single trigger cannot be able perform the function required?
  4. T

    Schmitt Trigger vs RC Low pass Filter for signal conditioning

    If I have an application where I don't need to sample a sensor fast at all, and I include an analog LPF, such as an RC filter, does a Schmitt Trigger serve any purpose? Conversely, could I use a Schmitt Trigger instead of the RC LPF and achieve the same results?
  5. StijnC

    Single op amp PWM generator

    Hello, I have to design a single op amp circuit that has only +15v, -15v and GND as input and outputs a symmetrical PWM signal (+V and -V) with adjustable frequency and duty cycle. I have something that works partly but not completely, I can adjust the duty cycle from ±60% to ±100% but af that...
  6. Prasanna K Routray

    Schmitt Trigger with Constant Current Source.

    Hi All, To realise the below circuit I designed a circuit in MultiSim and tried ti simulate. But I'm unable to do so. I would appreciate any help in this regard.
  7. khuranarahul

    Modify Duty cycle by 20 to 50 times

    Hello I have a pulse wave coming from the photo diode, with T(ON) = 50-60us, and total time period is approx 20ms. Since this is too short a period (T1) to be detectable I want to increase it to 5ms, keeping the total time period same, that means I want to multiply the duty cycle by 20 to 30...
  8. Alex_Khan

    Schmitt trigger based NAND gate

    Hello Everyone, If someone can help me to understand how to calculate the hysteresis of the Schmitt trigger-based NAND gate? Which MOSFET's dimension decides the Vth_H and Vth_L? Thanks
  9. S

    Photodiode with TTL output

    Hello, I am hoping that someone will be able to direct me towards the appropriate piece of hardware to purchase. I am a cognitive neuroscientist, hoping to stimulate a specific area of the brain using Transcranial Magnetic Stimulation. The onset of stimulation needs to be precise (~100ms) and...
  10. S

    LT Spice help

    Dear guys, I was wondering about a problem in my designed capacitive sensor, why the simulation is not executed as wished. When I simulate the output difference between Vout1 and Vout2 without connection to the Schmitt trigger it looks like really well, but when I connect it to the Schmitt...
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