There are a large number of applications of photo- diodes. However, we shall give two applications of photo-diodes by way…
There are two important characteristics of photo- diode. (i) Reverse current-Illumination curve. The below Fig shows the graph between reverse…
LEDs are often grouped to form seven-segment display. The below Fig. shows the front of a seven segment display. It…
A LED that emits one colour when forward biased and another colour when reverse biased is called a multicolour LED.…
1. Explain what is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated…
Actuators may be categorized as ‘direct acting’ or ‘reverse acting’ and some configurations are indicated in Below Figure. In a reverse acting actuator an increase…
PLC ladder Logic Example to understand relay control circuits into a virtual form where contacts and coils interact to perform control…
Electromechanical relays may be connected together to perform logic and control functions, acting as logic elements much like digital gates (AND,…
A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating…
Differential pressure measurement is the difference in pressure between two points in a system. For filtration applications, the upstream side…
