Latest News
2025 GVDA Develop New 4.3inch IPS HD Industrial Endoscope Inspection Camerab ...
Apr 28, 2025
2024 New Arrive GVDA Portable 72W Led Light Soldering Iron GD301 in Stocks
Aug 08, 2024
Why Do I Choose GVDA GD139 Gas Leak Detectors?
Apr 11, 2024
Introduce New GVDA Rechargeable Combustible Gas Detector With Type C Charging...
Apr 11, 2024
Contact Us
Contact: Ms Judy Yan
Whatsapp/Wechat/Mob.: 86-18822802390
Email: marketing@gvdasz.com
Tel Phone: 86-755-27597356
Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
-
21
Aug
2023
What Is The Difference Between A Megohmmeter And A Multimeter?
What is the difference between a megohmmeter and a multimeter? 1. Different composition structures: A megohmmeter consists of medium to large scale integrated circuits. This met...
-
19
Aug
2023
What Is The Difference Between LED Power Supply And Regular Power Supply
What is the difference between LED power supply and regular power supply The high-frequency of LED switching power supply is the direction of its development, which miniaturizes...
-
19
Aug
2023
Solve Ripple Harmonics And Noise Interference Generated By Switching Power Su...
Solve ripple harmonics and noise interference generated by switching power supplies Ripple Ripple: refers to a clutter signal consisting of periodic and random components attach...
-
19
Aug
2023
The Characteristics Of Switching Power Supply And The Mechanism Of Electromag...
The Characteristics of Switching Power Supply and the Mechanism of Electromagnetic Interference Generation There are four basic characteristics of switching power supplies: ① Th...
-
19
Aug
2023
How To Design EMI For Switching Power Supplies
How to Design EMI for Switching Power Supplies EMC's classification and standards: EMC (Electromagnetic Compatibility) is electromagnetic compatibility, which includes EMI (Elec...
-
19
Aug
2023
Electromagnetic Compatibility Design Scheme For High Frequency Switching Powe...
Electromagnetic Compatibility Design Scheme for High Frequency Switching Power Supply If the electromagnetic interference (EMI) problem existing in the high-frequency switching ...
-
18
Aug
2023
What Are The Technical Parameters And Measurement Methods Of A Digital Multim...
What are the technical parameters and measurement methods of a digital multimeter 1. Resolution, Word Count, and Bits Resolution refers to the ability of a multimeter to disting...
-
18
Aug
2023
Introduction To The Usage Of Pointer Multimeters
Introduction to the Usage of Pointer Multimeters A general pointer multimeter changes the measurement items and range through the knob of the conversion switch. The mechanical z...
-
18
Aug
2023
How To Use The Hot Wire Recognition Function Of A Multimeter
How to use the hot wire recognition function of a multimeter Electricians used to use electric pens for maintenance and troubleshooting, but now they use a multimeter. In fact, ...
-
18
Aug
2023
How Do Electricians Choose A Multimeter That Is Suitable For Their Own Use
How do electricians choose a multimeter that is suitable for their own use A multimeter is one of the necessary tools for electrical workers or enthusiasts of electronic circuit...
-
18
Aug
2023
Using A Multimeter To Measure The Forward Resistance Of The Diode, Why Are Ea...
Using a multimeter to measure the forward resistance of the diode, why are each range A digital multimeter converts the measured resistance value into a digital signal through a...
-
17
Aug
2023
Electric Soldering Iron Is Insoluble And Does Not Stick To Tin
Electric soldering iron is insoluble and does not stick to tin Electric soldering iron is a necessary tool for electronic enthusiasts and practitioners. New electric soldering i...
-
17
Aug
2023
Is There Any Poison in Electric Soldering Iron Or Tin
Is there any poison in electric soldering iron or tin Solder wire is a material used for soldering with an electric soldering iron. Although its main component is tin, it also c...
-
17
Aug
2023
Sharing Methods For Improving The Welding Quality Of Electric Soldering Irons
Sharing methods for improving the welding quality of electric soldering irons 1. When using an electric soldering iron for welding, it is necessary to ensure that each welding p...
-
17
Aug
2023
Solution To Temperature Runaway Of Constant Temperature Electric Soldering Iron
Solution to temperature runaway of constant temperature electric soldering iron The interior of the constant temperature electric soldering iron adopts a high Curie temperature ...
-
17
Aug
2023
Method For Reducing The Oxidation Rate Of The Soldering Head And Core Of An E...
Method for reducing the oxidation rate of the soldering head and core of an electric soldering iron 1. Test resistance size Before using an electric soldering iron, measure the ...
-
16
Aug
2023
What Is The Working Principle Of A Test Pen
What is the working principle of a test pen The principle of electropen detection for luminescence is that there is a certain potential difference between the charged object and...
-
16
Aug
2023
How To Use A Test Pen? Usage Method Of Measuring Electric Pen
How to use a test pen? Usage method of measuring electric pen low-voltage test pen is commonly used to test whether the live wire of a 220 volt AC power supply is energized or w...
-
16
Aug
2023
What Happens To The Fire Wire When The Test Pen Is Broken
What happens to the fire wire when the test pen is broken The internal part of the measuring pen is generally composed of high resistance resistors, neon tubes, and springs. The...
-
16
Aug
2023
How To Use A Digital Screen To Display A Large Amount Of Data With A Test Pen
How to use a digital screen to display a large amount of data with a test pen Neon bubble electric pen The biggest feature of a neon bubble electric pen is that when the pen tou...