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0
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1answer
50 views

Adding hysteresis to MOSFET used as a switch

I have a low-voltage detection circuit which I use to trigger one of two LEDs (green, and red) that is powered off of a +9V battery cell. As the battery discharges, its output voltage decreases, until ...
2
votes
4answers
260 views

Is there a clever way to prevent a window comparator from oscillating?

Here is my schematic It's basically a crude battery level detector (I am very aware that this isn't the best way to guage battery life, I'm not here for that) it's not crucial that it is super ...
0
votes
2answers
129 views

Hysteresis not working properly

This question is related to my previous question about the battery charging and discharging. Here is the link to my previous question. I have made a small change in my previous schematic, which is ...
2
votes
2answers
175 views

Battery charging and discharging problem

I have designed a battery charging and discharging circuit. The main purpose of this circuit is to charge the battery and then discharge, one operation at a time. I have also added a hysteresis of ...
-1
votes
2answers
80 views

How to find exact low voltage and high voltage values?

How to find the Hysteresis comparator exact "V high and V low" values
1
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2answers
158 views

Simple circuit reacts to touching a node

I am trying to repeat a circuit from this post. For some reason it does not work properly, and trying to fix it I figure out strange behavior. LED turns on if I touch R3 with my finger or with ...
5
votes
1answer
108 views

How do I calculate the hysteresis losses of a straight line inductor?

In using a particular type of conductor for an antenna in AC frequencies between 3MHz and 30MHz (HF), it was suggested that magnetic hysteresis losses may be significant if the permeability of the ...
1
vote
1answer
101 views

How significant are hysteresis losses in iron wires with RF currents?

I understand that iron isn't a great choice of conductor for RF currents, as a wire dipole antenna for example. I understand there are several reasons, but I'm wondering specifically about one: ...
2
votes
2answers
658 views

Techniques for analyzing Comparator circuits?

I'm looking for some general guidelines/equations I can use to analyze circuits which use comparators. In particular, I'm interested in hysteresis. For example, take the following open ...
5
votes
2answers
118 views

Scaling voltage to meet two conditions at once

I am using an IC (STM6600) which, among other functions that I need, is also capable of Undervoltage Monitoring. It works like this: The IC monitors VCC in comparison to two thresholds, V_Low and ...
6
votes
2answers
6k views

Comparator with hysteresis equations

I'm trying to be sure I'm computing the values for this circuit right. Here's an example of the circuit I'm trying to build (it's going in a 12V DC system so I filled that in already). I have a ...
10
votes
6answers
4k views

what is “input hysteresis”?

I'm looking at a datasheet for a digital circuit and it specifies that the typical input hysteresis is 100 mV. What does this mean exactly?