The voltage of the power converter is asked first

It cannot be directly replaced, and the voltage can be modified to 6 volts by modifying the circuit, such as adding a 6 volt three-terminal module or a voltage regulator tube, and increasing the resistance. It can be connected to the power supply and passed the multimeter test.

In addition, the use of a 220-volt power transformer may cause the temperature to rise too high and burn out.

Also, the polarity of the DC power plug must be consistent.

How is the reference voltage of a D converter generated?

Hello dear, glad to answer for you! The basic principle of the da conversion is to generate a voltage (or current) by weighting each digit of the input binary digital slag, and then sum these analog quantities to obtain an analog quantity proportional to the digital quantity. All the signals that the counter adds to the A D converter are 0 signals, so the analog voltage v0 = 0 output by the D A converter.

If v1 is a positive voltage signal, the output voltage of the comparator is 1. Compare all digits of the completed da according to the same prefectural method.

Summary. The current source, i.e., the ideal current source, is a model abstracted from the actual power supply, and its end buttons can always provide a certain current to the outside regardless of the voltage at both ends, and the current source has two basic properties: first, the current it provides is a fixed value i or a certain time function i(t) independent of the voltage at both ends.

Second, the current source itself is current-determined, and the voltage across it is arbitrary.

Answer analysis and supplementary explanation: The voltage source can be equivalent to the parallel connection of an ideal combustion hidden electric current source is and a resistor RS. The current source can be converted into a series of voltage sources us and a resistor RS in series.

Conversion formula: us = rs*is.

What are the characteristics of voltage source and current source?

Yes, this is a supplemental explanation.

A voltage source, or ideal voltage source, is a model abstracted from an actual power source that always maintains a certain voltage at its ends, regardless of the amount of current flowing. The voltage source has two basic properties: first, its terminal voltage value u or Lu Qingshen is a certain time function u(t) independent of the current difference of flowing.

Second, the voltage of the voltage source itself is determined, and the current flowing through it is arbitrary.

The current source, that is, the ideal current source, is a model abstracted from the actual power supply, the end button of the bridge can always provide a certain current to the outside regardless of the voltage at both ends, and the slag current source has two basic properties: the first base mill, the current it provides is a fixed value i or a certain time function i(t) has nothing to do with the voltage at both ends. Second, the current source itself is current-determined, and the voltage across it is arbitrary.

Any current core backup source can be converted to a voltage source. (Destroyed by the bridge).

a.That's right. b.Mistake.

Correct lead removal Answer: B

The current flowing out of the middle branch is always 6A (up) regardless of the size of the 10V voltage source, so the voltage source can be ignored as a short circuit, and the left branch 10V string 5 ohms is equivalent to 2A (up) and 5 ohms, so after the equivalent conversion, the 5 ohms of the left branch are combined with the 5 ohms of the right branch = ohms, and the two current sources 2A and 6A are connected in parallel. Reed argument grip.

Answer: 10 digits.

Estimation method: 1. The output range of DA is generally from 0 to a certain voltage value. The minimum output voltage is equivalent to an interval, and the current result is 5mV (it can also be assumed that the actual output is around this number, and there is a possibility that errors may occur due to insufficient accuracy of the measurement equipment).

2. The maximum output is 5V. Then it means that there are at least 5 5mv = 1000 intervals in the entire output range.

There are 8, 10, 12, 14, 16 and other commonly used ADs. The closest is 10 bits, in which case 1024 values can be output (equivalent to 1023 intervals), which is the closest to the previous estimate. In this way, the information of the whole topic can be supplemented accurately.

There are so many ways to do it:

1: Resistance voltage division.

2: With a chip, a voltage regulator or 7812 (a chip, the output is +12V) 3: Switching power converter. Such as buck circuits, etc.

If you're looking for simple numbers, use method 1 or 2.

The 7812 is a three-terminal regulator capable of outputting +12V DC voltage, or +12V as long as the connected voltage is a few volts higher than +12V.

If you use the switch to change the royal converter, you can add a potato to the back to lift a tributary step-down circuit, such as a buck converter, you can do it yourself, the cost is higher, you may not be able to buy what you want, but it is still recommended that you use 7812.

I drew a picture, and the changes in each step were detailed and the thin brother Bu drew the withered orange. You see, if you can understand it.