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Change the brightness of the most beneficial illuminated LED to represent voltages among the ranges so that if the value is half way among the range then the LED should be 50% brightness. This can be achieved by using Pulse Width Modulation (PWM) ie. Turn the LED ON for 50% of the time and OFF for 50% of the time will.
Q. Illustrate the operation performed by instruction OUT 47 h, AL. Ans: It transfers contents of AL to I/O port 47h. Notice that I/O port number appears as 0047h on the 16 b
A burglar alarm system is controlled by a microprocessor system. The system has three independent circuit each consisting of 7 passive infra red sensors. The controller can be prog
Mode 2 In this mode transistor gets turned off by the negative output of PWM current flows through inductance L diode D then divide into two parts one flows through
Risers: Riser Design : A riser or a feeder head is a passage of sand made in the cope to permit the molten metal to rise above the highest point in the casting after the mou
The conveyor system is driven by a 240 Volt 50 Hz AC motor requiring a continuous 1 Amp supply. The conveyor has single direction operation. The loading mechanism for the winder
Q. Single-axis autopilot control system of an aircraft? Figure (a) shows the block diagram of a simplified single-axis (pitch, yaw, or roll) autopilot control systemwith digita
Define HRQ? The hold demand output requests the access of the system bus. In non- cascaded 8257 systems, this is linked with HOLD pin of CPU. In cascade mode, this pin of a sla
Explain mechanisms of propagation of radio communication. Radio communication deals with electronic radiation of electromagnetic energy from one point to another through atmosp
what is the reason for reduction in low frequency and high frequency regions in the frequency response of an Rc coupled amplifier?
Q. What is Autotransformers? In contrast to a two-winding transformer, the autotransformer is a single-winding transformer having a tap brought out at an intermediate point. Th
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