Excellent LED dot matrix display is a monochrome light-emitting diode in accordance with the structure of rows and columns ...

Connectors are used to connect cables or electronic devices that can be repeatedly connected and separated. ...

Because the number of LED digital tube is not unified,it can be said that there are no rules to follow ...

This article writes about the solid state relay (SSR) ...

This article describes the role of reed relay and solid state relay ...

it cannot be started. Indicates whether the number of valid cycles is an increment counter or a decrement counter, and the mode (count length) function of the state machine (counter), such as a decimal number. ...

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 ...

Four wave soldering daily maintenance and maintenance knowledge 1 regularly check the heating pipe voltage is normal,too high voltage will damage the heating pipe. ...

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 ...

The common characteristic of transformer is that the DC circuit on both sides is completely separated, and the energy transfer on both sides is coupled by magnetic field. ...

This article introduces reed pipe and dry reed relay ...

Diodes are generally not good repair, damage can only be replaced. In selecting diodes, we should pay attention to the following principles. ...

State transition diagram is a common tool in sequential logic circuits. It writes states in circles, arrows indicate the direction of state transition, and transition conditions are written next to arrows. ...

This article describes the characteristics of the data storage. ...