Can someone explain how this transistor comparator works? The circuit is a comparator and can be remarkably useful more or less as shown I have used a circuit essentially the same as that in production equipment to meet a requirement which was difficult to meet easily and cheaply by other means
What is the difference between a general comparator and a differential . . . 6 I notice that the LM339 quad comparator comes in 2 different varietys: general-purpose and differential Besides a big difference in price, what is the difference between the two? Specifically, I want to use it in a slow-changing (as in whole minutes before crossings) single-supply (12v) circuit that needs to output very close to 0 for Vsat-
Understanding this comparator circuit for AC voltage protection The circuit shown below is taken from this whole design I understand the main idea They want to measure some voltage condition and trigger something else with the comparator R39 and C38 form a low
DC Voltage Comparator - Electrical Engineering Stack Exchange A comparator will do what you expect, because it's made to be exactly that Note that, as drawn, you want a comparator with a push-pull output -- they also come with open-collector (or open-drain) outputs; as drawn, that wouldn't work in your circuit (but might, if you equipped the thing with a pullup resistor)