Q:Is the switching power supply and switching power supply the same?

Exactly the same, there is regulation by regulating the pulse through the pulse width regulator.

Q:Mobile phone charger principle (output mode)

Yes, but you have to know that it is different from the DC power supply, mobile phone charger output current will not be great, there are some charger output voltage is not clear, because it is constant current charge!

Q:DC power supply design and production of what materials

The simplest constant voltage DC power supply requires the following materials: 1, transformer 2, rectifier diodes or bridge heap 3, filter with electrolytic capacitors 4, the regulator circuit (78 series of fixed three-terminal or adjustable three-terminal regulator LM318, LM338) 5, other needs of electronic components (resistors, light-emitting diodes, potentiometers, etc.).

Q:Who bought a computer, but in the case of uninterrupted power is always automatically shut down, and later heard that my family away from the transformer far, voltage instability, then I bought a regulator, but the effect is not very good, There is still a power outage, and some people say that to buy a power supply, I do not understand the function between the two and the difference, please master answer!

Only AC voltage regulator, if this is not, buy a UPS, open the computer when the inverter, do not open the time, the battery charge.

Q:I would like to ask: DC power supply when the ground terminal when used? how to use?

Ground (PE): not used for working circuits, only as a protection line. The use of the absolute zero voltage of the earth, when the equipment shell leakage, the current will quickly flow into the earth, even if the PE line has an open circuit, will also flow from the nearby ground into the earth ? And then better, if it is a metal shell, to prevent electric shock; also can provide electrostatic discharge circuit ? Connection: received three-core power supply on the ground, if there is buried copper pillars, then better in the above, because more pure

Q:DC power supply is generally composed of several parts

DC power supply is mainly composed of four parts: power transformers, rectifier circuit, filter circuit and voltage regulator circuit.

Q:Is it possible to power the regulator and the regulator? Please enlighten me

Regulated power supply and regulator is one thing, the regulator output is the power supply. ???????The stabilized voltage supply is an electronic device that provides stable AC power or DC power for the load. Including AC power supply and DC power supply two categories. ??????Voltage stabilizer (English: voltage stabilizer) refers to a kind of electronic engineering is designed to automatically maintain a constant voltage device. A regulator may be a simple "feedforward" design or may contain a negative feedback control loop. The regulator may also use an electromechanical mechanism or an electronic module. According to the different design, the regulator can be divided into DC regulator and AC voltage regulator. Regulators are often used in power supply systems and work with rectifiers, electronic filters, etc. to provide stable output voltages, such as the operating voltage required for microprocessors and other components. In the generators and even large generators in power plants, regulators control the stability of the output voltage. In a distributed distribution system, the regulator may be installed in a substation or along the direction of the wire extension to ensure that the user regardless of the power level can be a stable voltage.

Q:DC power supply can directly charge the rechargeable battery?

Yes, but the effect is not good! Only one or two times, you can, a long time, the number of times, seriously affecting the battery performance. When used to adjust the adjustable voltage regulator output voltage. Can not be too high, otherwise there may be accidents, such as battery explosion, power damage and so on.

Q:Please elaborate on their function, where to use, what is the difference between the output input? The more detailed the better! Thank you!

DC is called DC AC is called AC Exchange to transformer Do not use an external transformer

Q:DC power supply is not three terminals do, -, GND, + would like to ask what is the middle of the use of the GND?

GND is the abbreviation of English ground, meaning "earth".