how to detect a varactor?
On 2018-10-26 17:08:18 in Memory
Because the positive resistance of the varactor diode is larger,the multimeter is placed in the RX 10k2 block,the red form is connected to the positive pole ...
How to use a mechanical multimeter?
On 2019-01-27 14:43:12 in Technology
This article introduces how to use a mechanical multimeter. ...
Introduction to some electronic assembly tools.
On 2018-12-05 11:48:38 in Knownlege
This article briefly introduction to some electronic assembly tools ...
What is a small cover pole motor and how to test and repair it?
On 2019-01-08 10:21:31 in Generally electronic component
This article describes about the small cover pole motor and how to test and repair it ...
Do you know how to design printed boards and system wiring?
On 2019-08-24 11:42:49 in Generally electronic component
This article describes the characteristics of the printed boards and system wiring. ...
What is an optical coupler and how to measure it?
On 2018-12-15 14:23:34 in Photoelectric
This article introduces what is an optical coupler and how to measure it ...
What is an integrated circuit?
On 2018-12-18 16:15:07 in IC Chips
This article briefly introduces what is an integrated circuit ...
How to test and repair the rectifier bridge?
On 2018-10-26 15:52:31 in IC Chips
Distinguish polarity to place the multimeter in RX1kQ block,and the black stylus arbitrarily connect a pin of the whole bridge component,and measure the other three pins with the red stylus,if the measured resistance is infinite ...
How to detect a transformer?
On 2018-12-20 11:11:48 in Generally electronic component
This article describes how to detect a transformer. ...
How to identify and detect transistors?
On 2018-10-27 10:56:39 in Generally electronic semiconductor
Intuitionistic recognition.Figure shows the pin distribution diagram of common transistors. ...
How does an infrared proximity sensor work?
On 2020-11-18 11:26:50 in Sensor
This article describes the characteristics of the sensor. ...
how to detect a dual base diode?
On 2018-10-26 17:10:47 in Memory
discriminant emitter E. When the multimeter is placed in the RX1k2 block and the positive and reverse resistance values between any two electrodes are equal (2~10k2) with two forms ...
L298N DC motor drive chip.
On 2020-05-05 10:28:09 in Generally electronic semiconductor
This article describes the characteristics of the L298N DC motor drive chip. ...
What are the characteristics and functions of magnetic beads?
On 2019-08-15 10:16:55 in Technology
This article describes the characteristics of the magnetic beads. ...
A method for detecting resistance components using a multimeter.
On 2019-05-30 14:42:49 in Resistors
This article introduces A method for detecting resistance components using a multimeter. ...
how to detect infrared receiving diode?
On 2018-10-26 16:55:08 in Generally electronic semiconductor
the judgment electrode is the same as that for detecting the normal or reverse resistors of ordinary light emitting diodes or diodes. ...
How to detect humidity resistors by using a pointer multimeter voltage shift?
On 2019-07-06 15:01:02 in Resistors
This article describes use the pointer multimeter voltage conversion to detect the humidity resistance ...
what is a super bright light emitting diode?
On 2018-10-26 16:22:18 in Generally electronic semiconductor
The common L.ED luminescence intensity has developed from several mned to dozens of med. ...
How do you measure infrared light emitting diodes?
On 2018-10-26 16:48:19 in Memory
When detecting infrared light emitting diodes,there is a big difference between the pointer type multimeter and the digital multimeter ...
What are the types of wearable sensors?
On 2023-09-14 14:11:16 in IC Chips
This article describes the characteristics of the wearable sensors. ...
what are the characteristics of a light emitting diode?
On 2018-10-26 16:17:19 in IC Chips
Light emitting diodes have the same conductivity as ordinary diodes.When positive currents pass through PN junctions ...
What is an infrared receiver?
On 2019-01-02 16:02:03 in Generally electronic semiconductor
This article describes the infrared receiver ...
How to distinguish between USB Type-C and USB 3.1?
On 2020-10-12 10:56:21 in Connector
This article describes the characteristics of the USB Type-C and USB 3.1. ...
What are the techniques for car electronic instrument maintenance?
On 2019-07-10 10:53:09 in Technology
This article writes about the techniques for car electronic instrument maintenance ...
Electrooptic devices are just the opposite
On 2018-10-31 11:01:18 in Knownlege
The history of photoelectric technology is actually earlier than that of electronic technology.In early twentieth Century, Einstein won the Nobel prize with the discovery of photoelectric effect ...
How to check and repair after DC motor broken?
On 2019-01-05 16:03:59 in Generally electronic component
This article describes some methods to check and repair after DC motor broken ...
What are the external interfaces of the computer?
On 2023-05-20 13:18:43 in IC Chips
This article describes the characteristics of the computer. ...
How to make DC adjustable power supply?
On 2019-01-22 16:54:34 in Technology
This article describes how to make DC adjustable power supply ...
What is the priciple of the digital tube?
On 2019-01-22 16:49:17 in Photoelectric
This article describes the basic principles of the digital tube ...
What are the problems should be paid attention to when using automobile digital multimeter?
On 2019-03-08 11:15:46 in Question
This article describes some problems should be paid attention to when using automobile digital multimeter ...
How to distinguish common diodes?
On 2019-01-19 16:38:32 in Generally electronic semiconductor
This article explores how to distinguish common diodes ...
How to select external connection mode of printed Circuit Board?
On 2019-01-15 11:19:29 in Knownlege
This article describes the selection of external connection mode of printed Circuit Board ...
Debugging and Assembly of patch miniature FM Radio
On 2018-12-11 14:03:30 in Knownlege
This article briefly introduces debugging and Assembly of patch miniature FM Radio ...
LEDVANCE announces that it will close a factory in the US
On 2019-05-15 13:21:34 in Knownlege
This article describes that LEDVANCE will close a factory in the US ...
What is the Nitride system?
On 2019-01-12 16:06:47 in Knownlege
This article describes the Nitride system ...
What types of monitors are divided into display technologies?
On 2021-11-27 10:41:03 in Photoelectric
This article describes the characteristics of the display technologies. ...
What is the application principle of open-ended Hall current sensors in power distribution systems?
On 2020-11-17 11:34:15 in Sensor
This article describes the characteristics of the sensors. ...
Common switch and automatic switch: relay
On 2019-01-21 16:53:38 in Generally electronic component
This article briefly introduces the common switch and automatic switch: relay ...
What is a three-terminal regulator integrated circuit and IC socket?
On 2019-01-21 10:52:42 in IC Chips
This article briefly introduces the three-terminal regulator integrated circuit and IC socket ...