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What is a switching power supply


Switch mode power supply is called switching power supply and switching converter.switching power supply It is a high-frequency power conversion device and a type of power supply.


The function of the switching power supply is to convert a level of voltage into the voltage or current required by the user through different forms of architecture.


The input of the switching power supply is mostly AC power (such as commercial power) or DC power, and the output is mostly equipment that requires DC power, such as personal computers, and the switching power supply converts the voltage and current between the two.



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# by casnerdarin | 2022-07-08 15:52 | technology | Comments(0)

The BLDC motor is highly efficient and controllable and has a long service life. bldc motor controller So what are they used for?


Due to their efficiency and longevity, they are widely used in continuously operating equipment. They have long been used in washing machines, air conditioners, and other consumer electronics; more recently, they have appeared in fans, where their high efficiency helps reduce power consumption significantly.


They are also used to drive vacuum machines. In one case, a change in the control program resulted in a huge leap in speed - an example of the highest controllability these motors offer.


BLDC motors are also used to drive hard drives, and their durability allows the drives to operate reliably for long periods of time, while their power efficiency helps reduce energy in this increasingly important area.




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# by casnerdarin | 2022-07-07 14:55 | Comments(0)

Classification according to the number of circuit layers: divided into single-sided, double-sided and multi-layer boards. control PCBA boardCommon multi-layer boards are generally 4-layer boards or 6-layer boards, and complex multi-layer boards can reach dozens of layers.


1. Single-Sided Boards

On the most basic PCB, the parts are concentrated on one side, and the wires are concentrated on the other side (when there are SMD components, it is the same side as the wires, and the plug-in devices are on the other side). Because the wires only appear on one side, this kind of PCB is called Single-sided.


2. Double-Sided Boards

This circuit board has wiring on both sides, but to use both sides of the wire, there must be a proper circuit connection between the two sides. The double-sided board solves the difficulty of staggered wiring in the single-sided board (it can be conducted to the other side through the hole), and it is more suitable for use in more complicated circuits than the single-sided board.


3. Multi-Layer Boards

In order to increase the area that can be wired, more single or double-sided wiring boards are used for multilayer boards. A printed circuit board with one double-sided inner layer, two single-sided outer layers, or two double-sided inner layers and two single-sided outer layers, alternated by positioning system and insulating bonding material, and conductive patterns. Printed circuit boards that are interconnected according to design requirements become four-layer and six-layer printed circuit boards, also known as multi-layer printed circuit boards.




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# by casnerdarin | 2022-07-06 15:04 | technology | Comments(0)

Now that home elevators are becoming popular, many families want to install home elevators to facilitate going up and down the stairs at home. fast elevators The following points need to be considered during installation:


1. Safety

During the installation process of the home elevator, the steel structure must be made in the hoistway according to the requirements, so that the elevator car and system equipment can be firmly installed.


2. Sound insulation

The upper and lower tracks of home elevators will generate noise, and the hoistway must be soundproofed, otherwise people living in the room next to the elevator will feel very noisy at night.


3. Level

The door of the home elevator and the interior of the elevator should be kept at the same level as the hardcover ground finish of each floor, so that users can walk up and down the elevator smoothly.




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# by casnerdarin | 2022-07-05 13:00 | Comments(0)

1. High precision In terms of engraving accuracy, the diameter of the light source of the laser engraving machine is very small, so the precision of the laser engraving machine will be very high, and the cutting tool of the cutting tool engraving machine itself has a certain width.laser engraver , In addition to the quality of the machine itself, the precision also includes The precision requirements of the tool.


2. No need to fix The laser engraving machine is a non-contact processing object, so there is no need to fix the workpiece for plane engraving. The mechanical engraving is in contact with the processed object, so the object is required to be fixed.


3. Engraving pictures Laser engraving machine can engrave photos, and can directly engrave photos in GIF format, but tool engraving cannot do this.




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# by casnerdarin | 2022-07-04 15:05 | technology | Comments(0)