Lead-free soldering

On 2019-01-05 14:18:20  in Technology

Lead-free soldering

This article writes about the lead-free welding ...

How to judge whether the capacitor is good?

On 2018-12-05 10:43:01  in Technology

How to judge whether the capacitor is good?

This article introduces how to judge whether the capacitor is good or bad ...

How to judge a capacitor is good or bad and replace the bad one?

On 2019-03-11 12:00:02  in Technology

How to judge a capacitor is good or bad and replace the bad one?

This article describes the method to judge a capacitor is good or bad and replace the bad one ...

A preliminary understanding of the parasitic effects of resistors and capacitors

On 2018-12-26 10:39:18  in Technology

 A preliminary understanding of the parasitic effects of resistors and capacitors

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

How to make an inductive electronic welcome device?

On 2019-01-23 17:10:29  in Technology

How to make an inductive electronic welcome device?

This article describes how to make an inductive electronic welcome device ...

Welding of printed circuit boards

On 2018-12-13 10:45:44  in Technology

Welding of printed circuit boards

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

How to manufacture a mobile phone battery charger?

On 2019-01-22 16:56:32  in Technology

How to manufacture a mobile phone battery charger?

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

Keyboard, mouse interface circuit analysis and maintenance.

On 2019-07-03 11:03:42  in Technology

Keyboard, mouse interface circuit analysis and maintenance.

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

How the PSON to power on the ATX and then output other dc outputs?

On 2019-03-16 13:48:08  in Technology

How the PSON to power on the ATX and then output other dc outputs?

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

Layout and wiring of components

On 2018-12-06 11:29:22  in Technology

Layout and wiring of components

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

What about the iW220l and iW2202 digital controllers based on pulse train patent technology?

On 2021-07-05 11:05:01  in Technology

What about the iW220l and iW2202 digital controllers based on pulse train patent technology?

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

Board soldering considerations

On 2018-12-11 13:46:32  in Technology

Board soldering considerations

This article describes the board soldering considerations ...

What is the working principle of intelligent colored lights controller?

On 2019-01-28 15:21:12  in Technology

What is the working principle of intelligent colored lights controller?

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

How to make an electronic energy saving lamp?

On 2019-01-19 16:55:13  in Technology

How to make an electronic energy saving lamp?

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

How to identify and detect electronic components

On 2018-12-05 11:39:50  in Technology

How to identify and detect electronic components

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

Quality requirements for solder joints

On 2018-12-01 11:35:46  in Technology

Quality requirements for solder joints

This article describes the quality requirements for solder joints ...

Hand soldering precautions

On 2018-12-10 11:29:39  in Technology

Hand soldering precautions

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

How to measure motherboard standby conditions?

On 2019-06-15 15:28:54  in Technology

How to measure motherboard standby conditions?

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

How to make DC adjustable power supply?

On 2019-01-22 16:54:34  in Technology

How to make DC adjustable power supply?

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

Basic operation steps of manual welding

On 2018-12-11 13:39:56  in Technology

Basic operation steps of manual welding

This article introduces the basic operation steps of manual welding ...

CMOS circuit fault maintenance method.

On 2019-05-06 11:21:24  in Technology

CMOS circuit fault maintenance method.

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

Analysis of bad welding quality and countermeasures

On 2019-01-11 13:13:15  in Technology

Analysis of bad welding quality and countermeasures

This article describes the analysis of bad welding quality and countermeasures ...

How to make an water tank water level automatic controller production?

On 2019-01-23 17:18:01  in Technology

How to make an water tank water level automatic controller production?

The article explores how to make an water tank water level automatic controller production ...

How to use a mechanical multimeter?

On 2019-01-27 14:43:12  in Technology

How to use a mechanical multimeter?

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

Dip welding and wave soldering technology

On 2019-01-02 17:22:45  in Technology

Dip welding and wave soldering technology

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

Wave soldering technology

On 2018-11-01 13:54:01  in Technology

Wave soldering technology

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 ...

How to make a fast battery charger?

On 2019-01-21 16:38:37  in Technology

How to make a fast battery charger?

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

How to measure if the start-up circuit motherboard is short-circuited.

On 2019-06-14 16:05:01  in Technology

How to measure if the start-up circuit motherboard is short-circuited.

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

What is COB?

On 2019-01-02 15:26:57  in Technology

What is COB?

This article writes about the COB ...

How to detect the capacitance of the computer motherboard

On 2018-12-05 11:13:03  in Technology

How to detect the capacitance of the computer motherboard

This article describes the detection method of the capacitance of the computer motherboard ...

How to repair mechanical multimeter magnetoelectric meter head and resistance blocking fault?

On 2019-01-28 13:37:51  in Technology

How to repair mechanical multimeter magnetoelectric meter head and resistance blocking fault?

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

Extend the life of electrical appliances

On 2019-05-08 14:37:43  in Technology

Extend the life of electrical appliances

This article briefly introduces a method that extend the life of electrical appliances ...

What are the power system voltage regulation methods and measures?

On 2019-08-08 11:52:11  in Technology

What are the power system voltage regulation methods and measures?

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

How to detects whether the trigger circuit correlation signal of start-up circuit is normal or not?

On 2019-07-02 15:45:18  in Technology

How to detects whether the trigger circuit correlation signal of start-up circuit is normal or not?

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

DDR2 memory power supply circuit analysis.

On 2019-05-31 14:22:25  in Technology

DDR2 memory power supply circuit analysis.

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

How to use the universal bridge meter for measuring capacitance?

On 2019-01-28 13:39:44  in Technology

How to use the universal bridge meter for measuring capacitance?

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

What is the work principle of LED cycle light and the list of components to form it?

On 2019-01-23 16:37:01  in Technology

What is the work principle of LED cycle light and the list of components to form it?

This article write about the work principle of LED cycle light and the list of components to form it ...

What are the five major electronic components?

On 2018-12-01 11:49:17  in Technology

What are the five major electronic components?

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

What are the problems with internal heat soldering irons and how to repair them?

On 2019-01-28 17:41:29  in Technology

What are the problems with internal heat soldering irons and how to repair them?

This article describes the problems with internal heat soldering irons and how to repair them ...

What is the difference between electronic component plug-ins and patches?

On 2018-12-03 13:34:48  in Technology

What is the difference between electronic component plug-ins and patches?

This article is about the difference between electronic component plug-ins and patches. ...