​ This article describes the basic principles of the transformer ...

This article briefly introduces some ways to measure the transformer is good or bad ...

The article explores some repair methods after the transformer has been damaged ...

​ This article briefly introduce how to identify and detect electronic components ...

This article describes the maintenance method of CMOS circuit. ...

​This article briefly introduces how to repair the circuit board? ...

This article briefly introduces this article briefly introduces ...

This article describes the method of measure if the start-up circuit motherboard is short-circuited. ...

This article describes the characteristics of printed circuit boards ...

This article briefly introduces the method of detecting whether the trigger circuit correlation signal of start-up circuit is normal or not. ...

This article writes about the DDR2 memory power supply circuit analysis. ...

This article briefly introduces the welding of printed circuit boards ...

This article describes how to measure motherboard standby conditions. ...

This article describes the characteristics of the triggers. ...

This article describes the characteristics of the drive resistance. ...

Keyboard, mouse interface circuit analysis and maintenance. ...

This article briefly introduces the five major electronic components。 ...

This article describes the characteristics of the D triggers. ...

This article writes about the COB ...

This article describes how to make DC adjustable power supply ...

​ This article describes the effect of resistance ...

This article describes the characteristics of the voltage regulation. ...

This article describes how to produce a LED dimming table lamp ...

This article describes to make an electronic energy saving lamp ...

This article writes about the working principle of intelligent colored lights controller ...

This article describes the use and repair of the solder sucker. ...

When the printed circuit board of the automatic dip welding machine has been inserted with components,the solder slot rises automatically when the printed circuit board is sent to the station by the conveyor belt ...

This article describes the layout and wiring of components ...

This article briefly introduces how to check and repair the clockwork timer ...

This article briefly introduces four steps and methods for fast learning of single-chip microcomputer beginners ...

This article describes how to make a fast battery charger ...

​This article describes the characteristics of transistor ...

This article describes the characteristics of the electromagnetic compatibility. ...

This article describes the characteristics of the motor controller. ...

This article describes the method of reducing errors in detecting DC currents. ...

This article writes about some methods to judge the DC voltage/current block failure of the mechanical multimeter and repair it. ...

This article describes the Dip welding and wave soldering technology ...

This article briefly introduces the difference between digital power and analog power ...

This article describes the characteristics of the EMI. ...

This article describes how to manufacture a mobile phone battery charger? ...