Questions tagged [hysteresis]
The hysteresis tag has no usage guidance.
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What's the deal with this comparator's hysteresis?
I have here a circuit designed by someone else to create a 50% duty cycle square wave that leads a current transformer in phase. The CT maxes out at about 1 amp, and the output of the phase-leading ...
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I need help to identify the negative feedback loop in a hysteresis comparator
Can anyone help me identify where the negative feedback path is?
I want to determine the feedback factors for both negative and positive feedback, but it's not clear to me where the negative feedback ...
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In the following circuit, do T1 and T2 conduct or block when the circuit is in the LOW or HIGH state?
This circuit is a Schmitt trigger, and the supply voltage Ucc.
is 15V. I want to calculate whether the transistors T1 and T2 are conducting or not when the state is LOW or HIGH(U(A)). These ...
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Hysteresis on inverting terminal for comparator circuits?
If you examine 98% of circuits online that include hysteresis for a comparator, they always implement the hysteresis on the non-inverting input, like so:
This is easy enough to calculate. However, ...
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Problem acquiring B-H curve
I'm trying to acquire the BH curve of a toroidal current transformer in saturation, having the primary and secondary current.
The formulas I am using are:
B = (1/NsS) Integral(Vs(t)dt)
H = (Ip*Np)/l
$...
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Comparator with hysteresis equation for Vmax Vmin
In a scientific paper (Design Considerations for Current Transformer
Based Energy Harvesting for Electronics
Attached to Electric Motor J. Ahola et. al.) I came across the comparator circuit with ...
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What types of inductor cores exhibit magnetization?
My understanding of magnetization in core memories is as follows: a bit is written to an inductor's core by magnetizing it, by applying a large current. Later, the bit is read by observing the effect ...
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Adding hysteresis to over-voltage protection using comparator
I am trying to add hysteresis into my over-voltage detection circuit. The output of the comparator should be high as long as the supply voltage is below 14 V.
The circuit works perfectly fine, but I ...
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Comparator with hysteresis; what resistors go where?
Consider the following almost-surely-wrong comparator circuit:
simulate this circuit – Schematic created using CircuitLab
In various places I've seen similar circuits, some have R3, some have ...
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Need help driving the enable pin on a TPS2595 with a voltage divider; not exactly sure which method is better to use
I'm a hobbyist at best, and am trying to overcome the learning curve as far as pull-up and pull-down resistors, N channel transistors and P channel transistors, etc, etc.
I've got a USB Type-C charge ...
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Transformer's Hysteresis Loss
Relation between hysteresis loss and the magnetic field intensity is given but I don't know how the loss is affected by the frequency of the current. What is the relation between the frequency and ...
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Hysteresis measurement voltage behaviour
I am currently doing a hysteresis measurement using the below depicted measurement setup, however with different values.
The odd thing is that I have different VM2 values, depending on how I connect +...
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Designing a simple controller for a hot plate
I have a hotplate with a TS port meant for an external temperature control unit. The manufacturer's customer service told me that this port is not connected to anything internally in the model I own. ...
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adjusting amount of hysteresis band
How is the amount of hysteresis band in the on/off controller adjusted?
I know that there should be a relation with time constant but I can't find the exact proportion.
Read so many papers but didn't ...
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Is hysteresis needed for this non-inverting comparator?
I’m trying to figure out if the following comparator circuit (TL331) would be reliable in the following application, or whether I would need to add anything, like hysteresis.
To explain the ...
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