How to judge whether there is a fault element according to the value of earth resistance？
On 2019-04-03 14:22:13 in Knownlege
This article describes the how to judge whether there is a fault element according to the value of earth resistor. ...
What is the diode and how to judge whether it is good or bad?
On 2019-03-16 13:34:16 in Generally electronic semiconductor
This article briefly introduces the diode and how to judge whether it is good or bad ...
How to judge the DC voltage/current block failure of the mechanical multimeter and how to repair it?
On 2019-01-28 17:40:45 in Technology
This article writes about some methods to judge the DC voltage/current block failure of the mechanical multimeter and repair it. ...
Light control automatic energy saving LED light circuit
On 2019-01-23 17:42:10 in Knownlege
This article writes about the light control automatic energy saving LED light circuit ...
What is an capacitor and how to distinguish the capacitance value?
On 2019-01-19 16:42:45 in Inductor
This article describes what is an capacitor and how to distinguish the capacitance value ...
What are the common semiconductor rectifying electronic components?
On 2019-01-18 18:08:19 in Generally electronic semiconductor
This article describes the common semiconductor rectifying electronic components ...
What are the materials of composition of luminescent ?
On 2019-01-15 13:50:07 in Knownlege
This article writes about the materials of composition of luminescent ...
What are the Electronic configuration and Spectral characteristics of luminescent elements in thin crystals?
On 2019-01-12 14:50:34 in Knownlege
This article describes the Electronic configuration and Spectral characteristics of luminescent elements in thin crystals ...
Three common inductor feature
On 2019-01-12 12:03:11 in Inductor
This article describes three common inductor feature ...
What are the characteristics and main parameters of Humidity sensitive resistor?
On 2019-01-09 15:32:22 in Resistors
This article writes about the characteristics and main parameters of Humidity sensitive resistor ...
What are the characteristics and parameters of the photosensitive resistor?
On 2019-01-08 15:44:42 in Generally electronic semiconductor
This article briefly introduces the characteristics and parameters of thephotosensitive resistor. ...
What are the Synthetic carbon film resistor and organic synthesis solid resistor ?
On 2019-01-08 10:34:37 in Resistors
This article writes about the Synthetic carbon film resistor and organic synthesis solid resistor. ...
What is the synthetic carbon film resistor and organic synthesis solid resistor?
On 2019-01-07 16:17:31 in Resistors
This article describes the synthetic carbon film resistor and organic synthesis solid resistor ...
What are the common diodes?
On 2019-01-07 15:51:31 in Generally electronic semiconductor
This article describes three types common diodes ...
Commonly used transformers
On 2019-01-04 13:57:57 in Transformer
This article describes some commonly used transformers ...
Photosensitive resistor and photosensitive transistor
On 2018-12-29 15:34:08 in Photoelectric
This article describes the photosensitive resistor and photosensitive transistor ...
How to detect and replace the magnetron?
On 2018-12-28 16:05:11 in Generally electronic component
This article describes the way to detect and replace the magnetron ...
What is an insurance resistor and how to detect it?
On 2018-12-27 11:31:50 in Resistors
This article briefly introduces what is an insurance resistor and how to detect it ...
What is a humidity sensitive resistor?
On 2018-12-25 10:55:13 in Resistors
This article describes about the characteristics and detection of the humidity sensitive resistor ...
What are the performance characteristics of the piezoelectric ceramic buzzer and how to detect it?
On 2018-12-25 10:39:23 in Generally electronic component
This article briefly introduces the performance characteristics and detection of the piezoelectric ceramic buzzer. ...
What is a LED emission tube and how to detect it?
On 2018-12-21 14:28:11 in Photoelectric
This article briefly introduces what is a LED emission tube and how to detect it ...
How to test and repair the rectifier bridge?
On 2018-12-17 14:45:30 in Generally electronic semiconductor
This article introduces some ways to test and repair the rectifier bridge ...
What are the resistors functions,parameters and how to identify the resistance of the resistor?
On 2018-12-17 13:58:35 in Resistors
This article describes what are the resistors functions,parameters and how to identify the resistance of the resistor? ...
Rated power rating and detection method of fixed resistance
On 2018-12-13 14:58:39 in Knownlege
This article briefly introduces rated power rating and detection method of fixed resistance ...
If the computer power supply is insufficient, will it cause the performance of the graphics card to drop?
On 2018-12-11 11:33:39 in Knownlege
The article explores the impact of computer power shortage on graphics performance and the choice of power supply. ...
Classification of sensors in the car and the impact of the broken sensor
On 2018-12-10 13:50:32 in Knownlege
This article briefly introduces classification of sensors in the car and the impact of the broken sensor ...
Type and function of time relay
On 2018-12-08 10:45:33 in Knownlege
This article briefly introduces different type and function of time relay ...
Main cell phone sensor
On 2018-12-06 10:44:40 in Knownlege
This article describes the role of different mobile phone sensors. ...
What are the common types of power transformers?
On 2018-12-06 10:08:20 in Knownlege
This article writes about the different types of power transformers. ...
Signal line design
On 2018-12-05 10:52:23 in Technology
This article briefly introduces the signal line design ...
Five.Optocoupler
On 2018-10-31 11:35:12 in Generally electronic semiconductor
Optocoupler is an electrical and photoelectric converter composed of LED and photosensitive transistors ...
Classification of traverse
On 2018-10-30 11:53:32 in Knownlege
And the following is a single strand;the section area of 10mm'is more than one strand,and several strands or dozens of strands are twisted together to form a root, which has 7 shares,19 shares,37 shares and so on. ...
How to replace the transistor in application?
On 2018-10-27 11:03:32 in Knownlege
the principles that should be paid attention to when replacing transistors are as follows.A high limit parameter is used to replace the lower product body tube. ...
what is a double base diode (single junction transistor)?
On 2018-10-26 17:09:25 in Memory
Double base diode,also known as single crystal transistor (UJT)is a three terminal semiconductor device with only one PN junction.the circuit symbol,internal structure and equivalent circuit of double base diode. ...
how to detect the discoloration LEDs?
On 2018-10-26 16:40:18 in Memory
As shown in Figure 5-18,a circuit for detecting a discoloration light emitting diode (LEDs),a multimeter is placed in the RX10k2 block,and the two pin is connected. ...
How to detect fast recovery, ultrafast recovery diode?
On 2018-10-26 16:05:55 in Memory
The method of measuring fast recovery and ultrafast recovery diode with multimeter is basically the same as the method of detecting plastic sealed silicon rectifier diode. ...
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 identify and detect common diodes?
On 2018-10-26 15:48:50 in IC Chips
Intuitive judgment. Some of the circuit symbols are printed on the diode to indicate polarity; one end of the negative pole of the diode is printed with a color ring as a negative mark ...
Variable capacitance diode, step recovery diode, bidirectional trigger diode
On 2018-08-24 10:57:12 in Relays
It is usually used to trigger bidirectional thyristors, or to form an overvoltage protection circuit. ...
What are the commonly used anti-jamming technologies for sensors?
On 2023-08-21 17:18:57 in Sensor
This article describes the characteristics of the sensors. ...