Inverter and Inverter

MrCU204

Inverter and Inverter [Copy link]

There is not much room for writers to explore this topic.

No matter the function or usage, there is nothing special about it.

Besides, there is no shortage of articles and product specifications about this product.

Inverted, the inverted can be positive or negative, or high or low.

The positive and negative levels of the electric level are not the same concept. The key lies in the rise and fall.

Among all the devices, I have never seen logic circuits use positive and negative power supplies.

In a true logic system, the driving levels are only 0 and 1, with no intermediate values.

The transistor can act as a logic NOT gate, but the electronic engineering community shouldn't fool people like this.

MrCU204

Why do I want to publish this article? Because my simulation experiment requires NTC, but the software only has PTC.

It is an incandescent lamp, and there may be only one mobile phone software that gives the incandescent lamp the PTC characteristic.

PN junctions, regardless of the type of semiconductor they are made of, have NTC characteristics, but in the software, various diodes are not given NTC characteristics.

The voltage divider of the NTC (in series with the resistor) decreases as the heat increases, so I thought of using a light bulb with an inverting circuit to simulate it, but I didn't get the expected result. Of course, now I know where I went wrong.

bigbat

What kind of software is this? It can directly simulate the temperature effect. The temperature of most silicon devices should be a characteristic. NTC and PTC are both temperature measurement devices. So they are greatly affected by temperature.

lanhua

"The transistor can be used as a logical NOT gate, but the electronic engineering community shouldn't fool people like this."

Base input; emitter output is not.

MrCU204

bigbat posted on 2023-10-4 09:42 What kind of software is this? It can directly simulate the temperature effect. The temperature of most silicon devices should be a characteristic. NTC and PTC are both for temperature measurement devices...

It is that PROTO, but the only part that has the temperature characteristic is the light bulb, not other components.

MrCU204

lanhua posted on 2023-10-4 14:59 "The transistor can act as a logical NOT gate, but the electronic engineering community should not fool people like this." Base input; emitter output is not...

Inverter is a pulse or logic element.

If a transistor is used as an inverter, it must be a common emitter and operate in switching mode.

The real logic NOT gate is an integrated circuit, which uses a transistor as the gate, but it can be used but should not be used.

qwqwqw2088

Suddenly I thought, the inverting and NOT gates are different.

The output reverses the phase of the input signal by 180 degrees, which is called phase inversion.

The output is always the negation of the input, this is a NOT gate.

MrCU204

qwqwqw2088 posted on 2023-10-5 18:48 Suddenly I thought that the inverting and NOT gates are different. The output reverses the phase of the input signal by 180 degrees, which is inversion. The output is always the negation of the input, ...

Inverting, mainly dynamic, the level varies depending on the type of circuit,

Logic gates are like switching circuits with only two levels, and the output is always the opposite of the input, which is called negation.

The transistor inverter actually uses the transistor as a switch. The transistor switch needs to be driven continuously, and the logic level is also continuous.