how to detect the four end small power thyristor?
On 2018-10-29 15:00:02 in Relays
To detect the unidirectional conductivity of PN junction,the multimeter is placed in RX 1K block,and the positive and negative resistance between A-GA,GKGA and Gk-K are measured. ...
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. ...
Electret capacitive microphone
On 2018-11-01 14:19:07 in Relays
To measure the secondary coil of the output transformer,it can be measured directly with the two surface pen to check the output end of the city ...
Potentiometer detection and resistance detection
On 2018-08-22 12:04:06 in Relays
The actual resistance value can be measured by connecting two forms (no positive or negative) to the two ends of the resistor respectively. ...
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 ...
the detection of the resistor
On 2018-10-31 10:55:57 in Memory
Will be two pen ( regardless of the positive and negative ) are connected with the two ends of the resistor can be connected to measure the actual resistance value ( in order to improve the measurement accuracy ...
What about low-capacitance EMI filters with improved performance?
On 2020-11-03 12:08:19 in Generally electronic semiconductor
This article describes the characteristics of the EMI filters. ...
Pin identification and detection method of LED digital tube
On 2019-01-05 12:09:49 in Photoelectric
This article describes the pin identification and detection method for LED digital tube ...
what is a laser diode?
On 2018-12-28 14:17:40 in Generally electronic semiconductor
This article introduces the laser diode ...
what is an infrared light emitting diode?
On 2018-10-26 16:45:24 in Memory
determine the order of the arrangement of the pins.The multimeter is placed in the R*1 thousand euro file ...
DSP and MCU are moving toward convergence
On 2019-07-05 16:27:36 in IC Chips
This article describes that DSP and MCU are moving toward convergence ...
EMI and ESD noise suppression design solutions based on LCD or camera?
On 2020-10-20 11:13:47 in IC Chips
This article describes the characteristics of the LCD. ...
What is a unidirectional thyristor?
On 2018-12-14 11:49:41 in Generally electronic semiconductor
This article briefly introduces the unidirectional thyristor ...
What is a one-way thyristor?
On 2018-10-29 13:54:54 in Generally electronic semiconductor
SCR is a three-terminal semiconductor device composed of PNPN four-layer semiconductor material. ...
What is a thermocouple temperature sensor?
On 2018-12-29 13:40:01 in Sensor
This article briefly introduces basic principles and structure of thermocouple temperature sensor ...
How to measure the color LED dot matrix display?
On 2018-10-29 15:33:54 in Memory
The color LED dot matrix display is the same as monochrome.You can use short columns or rows of methods to detect,just a little cumbersome operation ...
How to use the OTC700 series automobile digital multimeter to text the rotation speed and duty?
On 2019-04-24 11:39:47 in Knownlege
This article describes the use of OTC700 series automobile digital multimeter to text the rotation speed and duty ...
What is an APC connector and how is it measured?
On 2021-08-17 10:37:52 in Connector
This article describes the characteristics of the connector. ...
What is an APC connector and how is it measured?
On 2021-08-03 11:05:46 in Connector
This article describes the characteristics of the connector. ...
What are the methods for reducing errors in resistance detection with a pointer multimeter?
On 2019-02-14 10:47:00 in Resistors
This article describes the methods for reducing errors in resistance detection ...
Digital multimeter structure and use
On 2019-01-25 17:58:18 in Knownlege
This article describes the digital multimeter structure and use ...
What is the working principle of fiber optic connector?
On 2020-10-07 11:14:27 in Generally electronic semiconductor
This article describes the characteristics of the fiber optic connector. ...
What is a differential signal, why use amplifier circuit ?
On 2019-09-29 10:14:16 in Generally electronic component
This article describes the characteristics of the amplifier. ...
Introduction of Two Common Test Methods for PCB Thermal Design
On 2018-12-28 10:26:41 in Technology
This article introduces of Two Common Test Methods for PCB Thermal Design ...
How to connect test lines when using DC / AC mode shields?
On 2019-04-20 13:38:41 in Technology
This article describes Method of properly connecting test lines when using DC / AC mode shields. ...
The main parameters and identification of the potentiometer
On 2018-12-20 13:38:20 in Generally electronic component
This article introduces the main parameters and identification of the potentiometer ...
Mid-range FPGA will become a new "niche" market
On 2019-07-24 10:55:11 in Generally electronic component
This article describes that Mid-range FPGA will become a new "niche" market ...
How to detect diodes
On 2018-12-03 14:00:20 in Technology
This article mainly describes how to detect diodes. ...
How does the fiber optic connector work?
On 2021-08-19 10:38:21 in Connector
This article describes the characteristics of the connector. ...
What is the main process technology of RF power amplifier?
On 2020-03-13 09:59:43 in IC Chips
This article describes the characteristics of the RF power amplifier. ...
What is the main process technology of RF power amplifier?
On 2020-01-11 10:50:21 in IC Chips
This article describes the characteristics of the RF power amplifier. ...
Commonly used connector
On 2019-01-04 16:23:50 in Connector
This article describes some commonly used connector ...
What is the structure of a common mechanical multimeter?
On 2019-01-25 16:17:30 in Knownlege
This article writes about the structure of a common mechanical multimeter. ...
What are the performance characteristics of headphones and earplugs and how to detect them?
On 2018-12-21 10:48:38 in Generally electronic component
This article briefly introduces the performance characteristics and detection of headphones and earplugs ...
Classification of bimetal thermometers
On 2019-07-08 15:30:35 in Sensor
This article describes the classification of bimetal thermometers ...
What are the main parameters of the varistor?
On 2019-01-09 13:22:09 in Resistors
This article describes the main parameters of the varistor. ...
What is a two-way trigger diode and how to detect it?
On 2019-01-02 17:59:43 in Generally electronic semiconductor
This article describes the two-way trigger diode and the detection. ...
how to detect the transient voltage suppression diode?
On 2018-10-26 17:00:00 in Generally electronic semiconductor
using a multimeter RX 10kilo-ohm for a monopole type TVS,the positive and reverse resistors can be measured by measuring ordinary diodes ...
How to detect a diode with using a digital multimeter?
On 2019-02-15 14:09:05 in Knownlege
This article briefly introduces how to detect a diode with using a digital multimeter ...