This article introduces some common household lighting switch ...

This article describes the characteristics of the analog switch. ...

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 describes the characteristics of the drive resistance. ...

This article describes the key technology of automotive switches ...

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

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

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

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

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

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

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

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

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

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

This article describes the characteristics of the controllers. ...

This article introduces how to use mechanical multimeter ...

This article describes the use methods of digital multimeter. ...

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

This article describes the use of the basic measurement function of automobile digital multimeter ...

This article introduces how to use a mechanical multimeter. ...

This article writes about the COB ...

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 briefly introduces how to repair the mechanical multimeter AC voltage and current mode fault. ...

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

​This article describes methods for detecting the AC voltage/current and DC voltage/current with using a multimeter ...

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

​ This article describes the effect of resistance ...

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

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

This article writes about the PSON to power on the ATX and then output other dc outputs? ...

This article describes how to repair mechanical multimeter magnetoelectric meter head and resistance blocking fault. ...

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 knowledge requirement of maintain the ATX power ...

This article describes how to use the universal bridge meter for measuring capacitance. ...

This article describes how the universal bridge meter measure resistance. ...

This article briefly introduces the parasitic effects of resistors and capacitors ...

This article briefly introduces several precautions for manual soldering. ...