Construction And Repair

Repair of a switching power supply: 12 volt UPS malfunctions, their diagnosis and elimination Construction And Repair

In modern consumer electronics, pulse-type power supplies (UPS) are actively used. They are necessary to rectify and lower the input voltage to a predetermined value. Despite the relatively high re...

Amateur radio circuits and homemade products: how to make a simple device with your own hands, toys for the house and car Construction And Repair

Those who are engaged in radio electronics at home are usually very curious. Amateur radio schemes and homemade products will help you find a new direction in creativity. Perhaps someone will find ...

Electrolyzer circuit: rules for making a device with your own hands Construction And Repair

An electrolyzer is a device that is used in the industrial field, for example, to obtain certain substances. However, due to the rise in the price of fuel and the increase in gas tariffs, the situa...

Do-it-yourself heat pump: circuit features, efficiency and payback period Construction And Repair

A heat pump (HP) is an innovative, efficient, ecological and budgetary solution for generating heat for the needs of hot water supply (DHW) and heating. The principle of its operation is simple. Th...

Switching power supply 12V 5A: general information, diagram, DIY device manufacturing process Construction And Repair

A switching power supply is an inverter system in which an alternating voltage is converted into direct voltage, and then pulses of increased frequency are formed from it. Such a device is quite ex...

How the battery works: device, principle of operation, designs Construction And Repair

Rechargeable batteries (accumulators) are used everywhere as mobile and stationary power sources: in material handling equipment, as elements of emergency and backup power supply, are the basis for...

Do-it-yourself buffer tank: device, principle of operation, assembly of a heat storage tank for a solid fuel boiler Construction And Repair

Some elements of the piping of heaters in a private house can be made independently. So, a self-made buffer tank for a solid fuel boiler will ensure the uninterrupted and efficient operation of the...

Lithium-ion battery: principle of operation and varieties, advantages and rules for operating the battery Construction And Repair

In modern mobile phones, cameras and other devices, lithium-ion batteries are most often used, replacing alkaline and nickel-cadmium batteries, which they surpass in many respects. For the first ti...

Graphene accumulators and batteries: history of invention, prospects of application and DIY manufacturing Construction And Repair

Even a person who is weakly connected with technology knows that any autonomous system that uses electricity cannot do without independent sources of electricity. Whether it is a means of mobile co...

Lithium-ion batteries: device, operating rules, recommendations on how to properly charge the battery Construction And Repair

Most of the battery management habits among users have developed from nickel battery maintenance stereotypes that are not applicable to the next generation of lithium batteries. Technically, they a...