Diode and transistor detection
On 2018-08-22 12:31:42 in Relays
In identifying and detecting common components, the resistance is the forward resistance of the diode. ...
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 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. ...
Identification and detection of capacitance components
On 2018-08-22 12:26:48 in Relays
Inductors are usually classified by skeleton, winding, shielding, packing material, magnetic core or magnetic core. ...
Types and detection methods of switching devices
On 2018-11-01 16:57:50 in Relays
The switch is the component that completes the electrical connection and disconnection through a certain action,which is generally connected in series to realize the transmission and control of signal and electric energy ...
What is a Schottky diode? How to detect?
On 2018-10-26 15:54:21 in Relays
Schottky diode is a low-power, high-current,ultra-high-speed semiconductor device, reverse recovery time trr can be small to a few nanoseconds ...
Identification and detection of active resistance elements
On 2018-08-22 11:08:45 in Relays
Resistance is one of the most common and basic electronic components. ...
How to identify and detect relays?
On 2018-12-20 14:13:55 in Relays
This article describes how to identify and detect relays ...
What is a reed pipe and dry reed relay and how to detect them?
On 2018-12-27 13:51:03 in Relays
This article introduces reed pipe and dry reed relay ...
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 ...
Common field effect transistor Slice field effect transistor
On 2018-08-28 17:24:04 in Relays
Low power field effect transistor, low power field effect transistor, high input impedance, low driving current, with low noise characteristics ...
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 is a transistor? What's the role?
On 2018-10-27 10:46:55 in Relays
Transistors are also called semiconductor diodes,which can be said to be the most important devices in electronic circuits ...
Is Replacing Old Mechanical Relays via PLCs a Good Idea?
On 2018-12-17 12:03:18 in Relays
The article explores that Is Replacing Old Mechanical Relays via PLCs a Good Idea ...
The identification of model and pin
On 2018-11-01 16:51:26 in Relays
Because the number of LED digital tube is not unified,it can be said that there are no rules to follow ...
What is a monochrome LED dot matrix display?
On 2018-10-29 15:27:20 in Relays
Excellent LED dot matrix display is a monochrome light-emitting diode in accordance with the structure of rows and columns ...
If there is no same type of pipe in use, how to replace it?
On 2018-10-26 15:50:14 in Relays
Diodes are generally not good repair, damage can only be replaced. In selecting diodes, we should pay attention to the following principles. ...
what is a solid state relay (SSR)?
On 2018-12-25 13:11:35 in Relays
This article writes about the solid state relay (SSR) ...
What is a damped line output transistor?
On 2018-10-27 11:06:35 in Relays
The line output high power transistor with a damping transistor is a special tube in the output circuit of the television.Figure 6A shows the internal structure and equivalent circuit of the output transistor with damping line ...
Main parameters of inductors
On 2018-08-22 12:34:29 in Relays
The main parameters of inductors include inductance, permissible deviation, quality factor, sectional capacitance and rated current. ...
Classification of capacitors
On 2018-10-30 11:59:35 in Relays
According to function.It can be divided into polyester capacitor,mica capacitor,high frequency ceramic capacitor,monolithic capacitor ...